issue处理注意事项:
1. 提交正常修复分支的修复PR时,必须关联当前issue,否则无法关闭当前issue;
2. 模板内容需要填写完整, 无论是受影响或者不受影响都需要填写完整内容;
3. 以下为模板中需要填写完整的内容, 请复制到评论区回复;
注: 内容的关键词(影响性分析说明, openEuler评分, 受影响版本排查(受影响/不受影响), 修复是否涉及abi变化(是/否), 原因说明)不能省略,省略后cve-manager将无法正常解析填写内容.
影响性分析说明:
openEuler评分: (评分和向量)
受影响版本排查(受影响/不受影响):
1.master(6.18.18):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP4(5.10.0):
4.openEuler-24.03-LTS-Next(6.6.0):
5.openEuler-24.03-LTS-SP1(6.6.0):
6.openEuler-24.03-LTS-SP3(6.6.0):
7.openEuler-24.03-LTS-SP4(6.6.0):
修复是否涉及abi变化(是/否)：
1.master(6.18.18):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP4(5.10.0):
4.openEuler-24.03-LTS-Next(6.6.0):
5.openEuler-24.03-LTS-SP1(6.6.0):
6.openEuler-24.03-LTS-SP3(6.6.0):
7.openEuler-24.03-LTS-SP4(6.6.0):
原因说明：
1.master(6.18.18):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP4(5.10.0):
4.openEuler-24.03-LTS-Next(6.6.0):
5.openEuler-24.03-LTS-SP1(6.6.0):
6.openEuler-24.03-LTS-SP3(6.6.0):
7.openEuler-24.03-LTS-SP4(6.6.0):
原因说明填写请参考下方表格(注意：版本是否受影响和版本的原因说明必须对应，例如master版本分支受影响，那原因说明只能是受影响对应的原因之一!)：
分支状态 |
原因说明 | 使用场景 |
|---|---|---|
| 受影响 | 正常修复 | 受影响且需要修复（包含升级版本修复）的漏洞； 受影响且已经修复的漏洞（历史修复PR也需要关联issue）； 若因特殊原因无法修复，应修改原因说明为【不修复-特殊原因】，并在安委会备案相关情况。 |
| 受影响 | 漏洞仍在分析中 | 已关注到相关漏洞，正在处理，未明确漏洞影响和修复方案。 |
| 受影响 | 暂不修复-暂无解决方案或补丁 | 当前没有可用的修复或补救措施。【影响性分析】中应包含有关为什么没有修复或补救措施的详细说明、上游相关PR等。 |
| 受影响 | 不修复-超出修复范围 | 没有漏洞的修复计划。当版本停维、软件包宣布生命周期终止或弃用使用。 |
| 受影响 | 不修复-特殊原因导致不再修复 | 如存在其他特殊情况不修复相关漏洞，或评估后无法升级修复，应在openEuler社区安全委员会例会进行说明备案。 【影响性分析】中应包含不发布修复的详细说明、特殊情况还应有安委会会议纪要。 |
| 不受影响 | 不受影响-组件不存在 | 软件不受影响，因为易受攻击的组件不在产品中。 |
| 不受影响 | 不受影响-已有内置的内联控制或缓解措施 | 内置的内联控制或缓解措施可防止攻击者利用漏洞 |
| 不受影响 | 不受影响-漏洞代码不能被攻击者触发 | 易受攻击的组件存在，并且该组件包含易受攻击的代码。但是，易受攻击的代码的使用方式使得攻击者无法进行任何预期的攻击。 |
| 不受影响 | 不受影响-漏洞代码不在执行路径 | 易受影响的代码在执行过程中不可访问，包括产品的非预期状态。产品不使用也不执行的组件。 |
| 不受影响 | 不受影响-漏洞代码不存在 | 产品不受影响，因为漏洞背后的代码在产品中不存在。与component_not_present不同的是，有问题的组件存在，但由于某种原因（例如安全的编译器选项）使漏洞的特定代码不存在于组件中。 |
issue处理具体操作请参考:
https://atomgit.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
pr关联issue具体操作请参考:
https://docs.atomgit.com/docs/help/home/org_project/pullrequests/pr-related-issue
检测到新建 CVE Issue，CVE-ID: CVE-2026-68160。
你可以通过以下两种方式使用 CVE 修复服务：
-
分支影响分析
- 在本 Issue 下评论：
/analysis_branches - 系统将自动分析各个分支是否受影响，并在本 Issue 下给出表格形式的分析结果；
- 在本 Issue 下评论：
-
在指定分支上创建 PR（修复提交）
- 在本 Issue 下按如下格式评论（字段均为必填，每个字段单独一行）：
/create_pr
branch: OLK-6.6 OLK-5.10
name: dev
email: dev@devstation.com
backport-engine: mystique
- 说明：
branch: 需要创建 PR 的目标分支列表，例如OLK-6.6 OLK-5.10；name: PR 签名人姓名（如责任人或安全负责人）；email: PR 签名人邮箱；backport-engine（可选）: 回移植引擎，可设为mystique切换迁移方案，不填则使用默认引擎；
系统会根据上述信息自动在指定分支上创建 PR，并在本 Issue 下反馈结果。
provided by DevStation.
说明：补丁链接仅供初步排查参考，实际可用性请人工再次确认，补丁下载验证可使用CVE补丁工具。
若补丁不准确，烦请在此issue下评论 '/report-patch 参考网址 补丁链接1,补丁链接2' 反馈正确信息，便于我们不断优化工具，不胜感激。
如 /report-patch https://security-tracker.debian.org/tracker/CVE-2021-3997 https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1
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Hey @openeuler-ci-bot , thanks for your contribution to the community.
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I'm the Bot here serving you. You can find the instructions on how to interact with me at Here . That means you can comment below every pull request or issue to trigger Bot Commands.
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CVE-2026-68160
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:
ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
ceph_handle_caps() reads snap_trace_len from the wire-format
ceph_mds_caps header and uses it unconditionally to build a fake
end pointer (snaptrace + snaptrace_len) that is later handed to
ceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case:
snaptrace = h + 1;
snaptrace_len = le32_to_cpu(h->snap_trace_len);
p = snaptrace + snaptrace_len;
...
case CEPH_CAP_OP_IMPORT:
if (snaptrace_len) {
...
if (ceph_update_snap_trace(mdsc, snaptrace,
snaptrace + snaptrace_len,
false, &realm)) { ... }
ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realm
from snaptrace using ceph_decode_need(&p, e, sizeof(*ri), bad)
with the attacker-supplied fake end e == snaptrace + snaptrace_len.
With snaptrace_len == 0xFFFFFFFF the bound check is trivially
satisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) past
the legitimate msg->front buffer, and ri->num_snaps /
ri->num_prior_parent_snaps then drive further out-of-bounds
reads of the encoded snap arrays.
The eleven msg_version >= 2 .. msg_version >= 12 decoder blocks
above the op switch each catch this OOB through their
ceph_decode_*_safe() / ceph_decode_need() helpers, but they sit
behind a hdr.version-gated if, so a malicious or compromised
MDS that sets msg->hdr.version = 1 reaches the IMPORT path with
no version-gated decoder having validated snap_trace_len. The
shape has been present since ceph_handle_caps() was introduced.
Validate snap_trace_len against the message front buffer before
consuming it, using the canonical ceph_decode_need() / ceph_has_room()
helper. The helper bounds the length with subtraction (n <= end - p,
guarded by end >= p) rather than pointer addition, so it is wrap-safe
for the attacker-controlled u32 length on 32-bit builds where
p + snap_trace_len could overflow the address space. This matches the
rest of the ceph decode path (e.g. the pool_ns_len check a few lines
below), and the existing goto bad cleanup already covers this exit
path.
The Linux kernel CVE team has assigned CVE-2026-68160 to this issue.
openEuler评分:(评分和向量)
3.9
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
受影响版本排查(受影响/不受影响):
1.master:不受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:受影响
8.openEuler-24.03-LTS-SP2:受影响
9.openEuler-24.03-LTS-SP3:受影响
10.openEuler-24.03-LTS-SP4:受影响
修复是否涉及abi变化(是/否)：
1.master:否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2:否
9.openEuler-24.03-LTS-SP3:否
10.openEuler-24.03-LTS-SP4:否
原因说明：
1.master:不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:暂不修复-漏洞仍在分析中
3.openEuler-22.03-LTS-SP3:不修复-超出修复范围
4.openEuler-22.03-LTS-SP4:暂不修复-漏洞仍在分析中
5.openEuler-24.03-LTS:不修复-超出修复范围
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:暂不修复-漏洞仍在分析中
8.openEuler-24.03-LTS-SP2:不修复-超出修复范围
9.openEuler-24.03-LTS-SP3:暂不修复-漏洞仍在分析中
10.openEuler-24.03-LTS-SP4:暂不修复-漏洞仍在分析中
@htforge 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态 | 分析项目 | 内容 |
|---|---|---|
| 已分析 | 1.影响性分析说明 | In the Linux kernel, the following vulnerability has been resolved:ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()ceph_handle_caps() reads snap_trace_len from the wire-formatceph_mds_caps header and uses it unconditionally to build a fakeend pointer (snaptrace + snaptrace_len) that is later handed toceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case: snaptrace = h + 1; snaptrace_len = le32_to_cpu(h->snap_trace_len); p = snaptrace + snaptrace_len; ... case CEPH_CAP_OP_IMPORT: if (snaptrace_len) { ... if (ceph_update_snap_trace(mdsc, snaptrace, snaptrace + snaptrace_len, false, &realm)) { ... }ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realmfrom snaptrace using ceph_decode_need(&p, e, sizeof(ri), bad)with the attacker-supplied fake end e == snaptrace + snaptrace_len.With snaptrace_len == 0xFFFFFFFF the bound check is triviallysatisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) pastthe legitimate msg->front buffer, and ri->num_snaps /ri->num_prior_parent_snaps then drive further out-of-boundsreads of the encoded snap arrays.The eleven msg_version >= 2 .. msg_version >= 12 decoder blocksabove the op switch each catch this OOB through theirceph_decode__safe() / ceph_decode_need() helpers, but they sitbehind a hdr.version-gated if, so a malicious or compromisedMDS that sets msg->hdr.version = 1 reaches the IMPORT path withno version-gated decoder having validated snap_trace_len. Theshape has been present since ceph_handle_caps() was introduced.Validate snap_trace_len against the message front buffer beforeconsuming it, using the canonical ceph_decode_need() / ceph_has_room()helper. The helper bounds the length with subtraction (n <= end - p,guarded by end >= p) rather than pointer addition, so it is wrap-safefor the attacker-controlled u32 length on 32-bit builds wherep + snap_trace_len could overflow the address space. This matches therest of the ceph decode path (e.g. the pool_ns_len check a few linesbelow), and the existing goto bad cleanup already covers this exitpath.The Linux kernel CVE team has assigned CVE-2026-68160 to this issue. |
| 已分析 | 2.openEulerScore | 3.9 |
| 已分析 | 3.openEulerVector | AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L |
| 已分析 | 4.受影响版本排查 | master:不受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP4:受影响,openEuler-24.03-LTS-Next:不受影响,openEuler-24.03-LTS-SP1:受影响,openEuler-24.03-LTS-SP3:受影响,openEuler-24.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-24.03-LTS-SP2:受影响 |
| 已分析 | 5.是否涉及abi变化 | master:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP4:否,openEuler-24.03-LTS-Next:否,openEuler-24.03-LTS-SP1:否,openEuler-24.03-LTS-SP3:否,openEuler-24.03-LTS-SP4:否,openEuler-22.03-LTS-SP3:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-SP2:否 |
| 已分析 | 6.原因说明 | master:不受影响-漏洞代码不能被攻击者触发,openEuler-20.03-LTS-SP4:漏洞仍在分析中,openEuler-22.03-LTS-SP4:漏洞仍在分析中,openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-SP1:漏洞仍在分析中,openEuler-24.03-LTS-SP3:漏洞仍在分析中,openEuler-24.03-LTS-SP4:漏洞仍在分析中,openEuler-22.03-LTS-SP3:不修复-超出修复范围,openEuler-24.03-LTS:不修复-超出修复范围,openEuler-24.03-LTS-SP2:不修复-超出修复范围 |
请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.
CVE-2026-68160
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:
ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
ceph_handle_caps() reads snap_trace_len from the wire-format
ceph_mds_caps header and uses it unconditionally to build a fake
end pointer (snaptrace + snaptrace_len) that is later handed to
ceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case:
snaptrace = h + 1;
snaptrace_len = le32_to_cpu(h->snap_trace_len);
p = snaptrace + snaptrace_len;
...
case CEPH_CAP_OP_IMPORT:
if (snaptrace_len) {
...
if (ceph_update_snap_trace(mdsc, snaptrace,
snaptrace + snaptrace_len,
false, &realm)) { ... }
ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realm
from snaptrace using ceph_decode_need(&p, e, sizeof(*ri), bad)
with the attacker-supplied fake end e == snaptrace + snaptrace_len.
With snaptrace_len == 0xFFFFFFFF the bound check is trivially
satisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) past
the legitimate msg->front buffer, and ri->num_snaps /
ri->num_prior_parent_snaps then drive further out-of-bounds
reads of the encoded snap arrays.
The eleven msg_version >= 2 .. msg_version >= 12 decoder blocks
above the op switch each catch this OOB through their
ceph_decode_*_safe() / ceph_decode_need() helpers, but they sit
behind a hdr.version-gated if, so a malicious or compromised
MDS that sets msg->hdr.version = 1 reaches the IMPORT path with
no version-gated decoder having validated snap_trace_len. The
shape has been present since ceph_handle_caps() was introduced.
Validate snap_trace_len against the message front buffer before
consuming it, using the canonical ceph_decode_need() / ceph_has_room()
helper. The helper bounds the length with subtraction (n <= end - p,
guarded by end >= p) rather than pointer addition, so it is wrap-safe
for the attacker-controlled u32 length on 32-bit builds where
p + snap_trace_len could overflow the address space. This matches the
rest of the ceph decode path (e.g. the pool_ns_len check a few lines
below), and the existing goto bad cleanup already covers this exit
path.
The Linux kernel CVE team has assigned CVE-2026-68160 to this issue.
openEuler评分:(评分和向量)
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
受影响版本排查(受影响/不受影响):
1.master:不受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:受影响
8.openEuler-24.03-LTS-SP2:受影响
9.openEuler-24.03-LTS-SP3:受影响
10.openEuler-24.03-LTS-SP4:受影响
修复是否涉及abi变化(是/否)：
1.master:否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2:否
9.openEuler-24.03-LTS-SP3:否
10.openEuler-24.03-LTS-SP4:否
原因说明：
1.master:不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:暂不修复-漏洞仍在分析中
3.openEuler-22.03-LTS-SP3:不修复-超出修复范围
4.openEuler-22.03-LTS-SP4:暂不修复-漏洞仍在分析中
5.openEuler-24.03-LTS:不修复-超出修复范围
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:暂不修复-漏洞仍在分析中
8.openEuler-24.03-LTS-SP2:不修复-超出修复范围
9.openEuler-24.03-LTS-SP3:暂不修复-漏洞仍在分析中
10.openEuler-24.03-LTS-SP4:暂不修复-漏洞仍在分析中
@htforge 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态 | 分析项目 | 内容 |
|---|---|---|
| 已分析 | 1.影响性分析说明 | In the Linux kernel, the following vulnerability has been resolved:ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()ceph_handle_caps() reads snap_trace_len from the wire-formatceph_mds_caps header and uses it unconditionally to build a fakeend pointer (snaptrace + snaptrace_len) that is later handed toceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case: snaptrace = h + 1; snaptrace_len = le32_to_cpu(h->snap_trace_len); p = snaptrace + snaptrace_len; ... case CEPH_CAP_OP_IMPORT: if (snaptrace_len) { ... if (ceph_update_snap_trace(mdsc, snaptrace, snaptrace + snaptrace_len, false, &realm)) { ... }ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realmfrom snaptrace using ceph_decode_need(&p, e, sizeof(ri), bad)with the attacker-supplied fake end e == snaptrace + snaptrace_len.With snaptrace_len == 0xFFFFFFFF the bound check is triviallysatisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) pastthe legitimate msg->front buffer, and ri->num_snaps /ri->num_prior_parent_snaps then drive further out-of-boundsreads of the encoded snap arrays.The eleven msg_version >= 2 .. msg_version >= 12 decoder blocksabove the op switch each catch this OOB through theirceph_decode__safe() / ceph_decode_need() helpers, but they sitbehind a hdr.version-gated if, so a malicious or compromisedMDS that sets msg->hdr.version = 1 reaches the IMPORT path withno version-gated decoder having validated snap_trace_len. Theshape has been present since ceph_handle_caps() was introduced.Validate snap_trace_len against the message front buffer beforeconsuming it, using the canonical ceph_decode_need() / ceph_has_room()helper. The helper bounds the length with subtraction (n <= end - p,guarded by end >= p) rather than pointer addition, so it is wrap-safefor the attacker-controlled u32 length on 32-bit builds wherep + snap_trace_len could overflow the address space. This matches therest of the ceph decode path (e.g. the pool_ns_len check a few linesbelow), and the existing goto bad cleanup already covers this exitpath.The Linux kernel CVE team has assigned CVE-2026-68160 to this issue. |
| 已分析 | 2.openEulerScore | 9.8 |
| 已分析 | 3.openEulerVector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 已分析 | 4.受影响版本排查 | master:不受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP4:受影响,openEuler-24.03-LTS-Next:不受影响,openEuler-24.03-LTS-SP1:受影响,openEuler-24.03-LTS-SP3:受影响,openEuler-24.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-24.03-LTS-SP2:受影响 |
| 已分析 | 5.是否涉及abi变化 | master:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP4:否,openEuler-24.03-LTS-Next:否,openEuler-24.03-LTS-SP1:否,openEuler-24.03-LTS-SP3:否,openEuler-24.03-LTS-SP4:否,openEuler-22.03-LTS-SP3:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-SP2:否 |
| 已分析 | 6.原因说明 | master:不受影响-漏洞代码不能被攻击者触发,openEuler-20.03-LTS-SP4:漏洞仍在分析中,openEuler-22.03-LTS-SP4:漏洞仍在分析中,openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-SP1:漏洞仍在分析中,openEuler-24.03-LTS-SP3:漏洞仍在分析中,openEuler-24.03-LTS-SP4:漏洞仍在分析中,openEuler-22.03-LTS-SP3:不修复-超出修复范围,openEuler-24.03-LTS:不修复-超出修复范围,openEuler-24.03-LTS-SP2:不修复-超出修复范围 |
请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.
CVE-2026-68160
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:
ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
ceph_handle_caps() reads snap_trace_len from the wire-format
ceph_mds_caps header and uses it unconditionally to build a fake
end pointer (snaptrace + snaptrace_len) that is later handed to
ceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case:
snaptrace = h + 1;
snaptrace_len = le32_to_cpu(h->snap_trace_len);
p = snaptrace + snaptrace_len;
...
case CEPH_CAP_OP_IMPORT:
if (snaptrace_len) {
...
if (ceph_update_snap_trace(mdsc, snaptrace,
snaptrace + snaptrace_len,
false, &realm)) { ... }
ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realm
from snaptrace using ceph_decode_need(&p, e, sizeof(*ri), bad)
with the attacker-supplied fake end e == snaptrace + snaptrace_len.
With snaptrace_len == 0xFFFFFFFF the bound check is trivially
satisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) past
the legitimate msg->front buffer, and ri->num_snaps /
ri->num_prior_parent_snaps then drive further out-of-bounds
reads of the encoded snap arrays.
The eleven msg_version >= 2 .. msg_version >= 12 decoder blocks
above the op switch each catch this OOB through their
ceph_decode_*_safe() / ceph_decode_need() helpers, but they sit
behind a hdr.version-gated if, so a malicious or compromised
MDS that sets msg->hdr.version = 1 reaches the IMPORT path with
no version-gated decoder having validated snap_trace_len. The
shape has been present since ceph_handle_caps() was introduced.
Validate snap_trace_len against the message front buffer before
consuming it, using the canonical ceph_decode_need() / ceph_has_room()
helper. The helper bounds the length with subtraction (n <= end - p,
guarded by end >= p) rather than pointer addition, so it is wrap-safe
for the attacker-controlled u32 length on 32-bit builds where
p + snap_trace_len could overflow the address space. This matches the
rest of the ceph decode path (e.g. the pool_ns_len check a few lines
below), and the existing goto bad cleanup already covers this exit
path.
The Linux kernel CVE team has assigned CVE-2026-68160 to this issue.
openEuler评分:(评分和向量)
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
受影响版本排查(受影响/不受影响):
1.master:不受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:受影响
8.openEuler-24.03-LTS-SP2:受影响
9.openEuler-24.03-LTS-SP3:受影响
10.openEuler-24.03-LTS-SP4:受影响
修复是否涉及abi变化(是/否)：
1.master:否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2:否
9.openEuler-24.03-LTS-SP3:否
10.openEuler-24.03-LTS-SP4:否
原因说明：
1.master:不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:暂不修复-漏洞仍在分析中
3.openEuler-22.03-LTS-SP3:不修复-超出修复范围
4.openEuler-22.03-LTS-SP4:暂不修复-漏洞仍在分析中
5.openEuler-24.03-LTS:不修复-超出修复范围
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:暂不修复-漏洞仍在分析中
8.openEuler-24.03-LTS-SP2:不修复-超出修复范围
9.openEuler-24.03-LTS-SP3:暂不修复-漏洞仍在分析中
10.openEuler-24.03-LTS-SP4:暂不修复-漏洞仍在分析中
@htforge 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态 | 分析项目 | 内容 |
|---|---|---|
| 已分析 | 1.影响性分析说明 | In the Linux kernel, the following vulnerability has been resolved:ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()ceph_handle_caps() reads snap_trace_len from the wire-formatceph_mds_caps header and uses it unconditionally to build a fakeend pointer (snaptrace + snaptrace_len) that is later handed toceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case: snaptrace = h + 1; snaptrace_len = le32_to_cpu(h->snap_trace_len); p = snaptrace + snaptrace_len; ... case CEPH_CAP_OP_IMPORT: if (snaptrace_len) { ... if (ceph_update_snap_trace(mdsc, snaptrace, snaptrace + snaptrace_len, false, &realm)) { ... }ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realmfrom snaptrace using ceph_decode_need(&p, e, sizeof(ri), bad)with the attacker-supplied fake end e == snaptrace + snaptrace_len.With snaptrace_len == 0xFFFFFFFF the bound check is triviallysatisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) pastthe legitimate msg->front buffer, and ri->num_snaps /ri->num_prior_parent_snaps then drive further out-of-boundsreads of the encoded snap arrays.The eleven msg_version >= 2 .. msg_version >= 12 decoder blocksabove the op switch each catch this OOB through theirceph_decode__safe() / ceph_decode_need() helpers, but they sitbehind a hdr.version-gated if, so a malicious or compromisedMDS that sets msg->hdr.version = 1 reaches the IMPORT path withno version-gated decoder having validated snap_trace_len. Theshape has been present since ceph_handle_caps() was introduced.Validate snap_trace_len against the message front buffer beforeconsuming it, using the canonical ceph_decode_need() / ceph_has_room()helper. The helper bounds the length with subtraction (n <= end - p,guarded by end >= p) rather than pointer addition, so it is wrap-safefor the attacker-controlled u32 length on 32-bit builds wherep + snap_trace_len could overflow the address space. This matches therest of the ceph decode path (e.g. the pool_ns_len check a few linesbelow), and the existing goto bad cleanup already covers this exitpath.The Linux kernel CVE team has assigned CVE-2026-68160 to this issue. |
| 已分析 | 2.openEulerScore | 9.8 |
| 已分析 | 3.openEulerVector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 已分析 | 4.受影响版本排查 | master:不受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP4:受影响,openEuler-24.03-LTS-Next:不受影响,openEuler-24.03-LTS-SP1:受影响,openEuler-24.03-LTS-SP3:受影响,openEuler-24.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-24.03-LTS-SP2:受影响 |
| 已分析 | 5.是否涉及abi变化 | master:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP4:否,openEuler-24.03-LTS-Next:否,openEuler-24.03-LTS-SP1:否,openEuler-24.03-LTS-SP3:否,openEuler-24.03-LTS-SP4:否,openEuler-22.03-LTS-SP3:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-SP2:否 |
| 已分析 | 6.原因说明 | master:不受影响-漏洞代码不能被攻击者触发,openEuler-20.03-LTS-SP4:漏洞仍在分析中,openEuler-22.03-LTS-SP4:漏洞仍在分析中,openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-SP1:漏洞仍在分析中,openEuler-24.03-LTS-SP3:漏洞仍在分析中,openEuler-24.03-LTS-SP4:漏洞仍在分析中,openEuler-22.03-LTS-SP3:不修复-超出修复范围,openEuler-24.03-LTS:不修复-超出修复范围,openEuler-24.03-LTS-SP2:不修复-超出修复范围 |
请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.
CVE-2026-68160
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:
ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
ceph_handle_caps() reads snap_trace_len from the wire-format
ceph_mds_caps header and uses it unconditionally to build a fake
end pointer (snaptrace + snaptrace_len) that is later handed to
ceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case:
snaptrace = h + 1;
snaptrace_len = le32_to_cpu(h->snap_trace_len);
p = snaptrace + snaptrace_len;
...
case CEPH_CAP_OP_IMPORT:
if (snaptrace_len) {
...
if (ceph_update_snap_trace(mdsc, snaptrace,
snaptrace + snaptrace_len,
false, &realm)) { ... }
ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realm
from snaptrace using ceph_decode_need(&p, e, sizeof(*ri), bad)
with the attacker-supplied fake end e == snaptrace + snaptrace_len.
With snaptrace_len == 0xFFFFFFFF the bound check is trivially
satisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) past
the legitimate msg->front buffer, and ri->num_snaps /
ri->num_prior_parent_snaps then drive further out-of-bounds
reads of the encoded snap arrays.
The eleven msg_version >= 2 .. msg_version >= 12 decoder blocks
above the op switch each catch this OOB through their
ceph_decode_*_safe() / ceph_decode_need() helpers, but they sit
behind a hdr.version-gated if, so a malicious or compromised
MDS that sets msg->hdr.version = 1 reaches the IMPORT path with
no version-gated decoder having validated snap_trace_len. The
shape has been present since ceph_handle_caps() was introduced.
Validate snap_trace_len against the message front buffer before
consuming it, using the canonical ceph_decode_need() / ceph_has_room()
helper. The helper bounds the length with subtraction (n <= end - p,
guarded by end >= p) rather than pointer addition, so it is wrap-safe
for the attacker-controlled u32 length on 32-bit builds where
p + snap_trace_len could overflow the address space. This matches the
rest of the ceph decode path (e.g. the pool_ns_len check a few lines
below), and the existing goto bad cleanup already covers this exit
path.
The Linux kernel CVE team has assigned CVE-2026-68160 to this issue.
openEuler评分:(评分和向量)
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
受影响版本排查(受影响/不受影响):
1.master:不受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:受影响
8.openEuler-24.03-LTS-SP2:受影响
9.openEuler-24.03-LTS-SP3:受影响
10.openEuler-24.03-LTS-SP4:受影响
修复是否涉及abi变化(是/否)：
1.master:否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2:否
9.openEuler-24.03-LTS-SP3:否
10.openEuler-24.03-LTS-SP4:否
原因说明：
1.master:不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:暂不修复-漏洞仍在分析中
3.openEuler-22.03-LTS-SP3:不修复-超出修复范围
4.openEuler-22.03-LTS-SP4:暂不修复-漏洞仍在分析中
5.openEuler-24.03-LTS:不修复-超出修复范围
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:正常修复
8.openEuler-24.03-LTS-SP2:不修复-超出修复范围
9.openEuler-24.03-LTS-SP3:正常修复
10.openEuler-24.03-LTS-SP4:正常修复
@htforge 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态 | 分析项目 | 内容 |
|---|---|---|
| 已分析 | 1.影响性分析说明 | In the Linux kernel, the following vulnerability has been resolved:ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()ceph_handle_caps() reads snap_trace_len from the wire-formatceph_mds_caps header and uses it unconditionally to build a fakeend pointer (snaptrace + snaptrace_len) that is later handed toceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case: snaptrace = h + 1; snaptrace_len = le32_to_cpu(h->snap_trace_len); p = snaptrace + snaptrace_len; ... case CEPH_CAP_OP_IMPORT: if (snaptrace_len) { ... if (ceph_update_snap_trace(mdsc, snaptrace, snaptrace + snaptrace_len, false, &realm)) { ... }ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realmfrom snaptrace using ceph_decode_need(&p, e, sizeof(ri), bad)with the attacker-supplied fake end e == snaptrace + snaptrace_len.With snaptrace_len == 0xFFFFFFFF the bound check is triviallysatisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) pastthe legitimate msg->front buffer, and ri->num_snaps /ri->num_prior_parent_snaps then drive further out-of-boundsreads of the encoded snap arrays.The eleven msg_version >= 2 .. msg_version >= 12 decoder blocksabove the op switch each catch this OOB through theirceph_decode__safe() / ceph_decode_need() helpers, but they sitbehind a hdr.version-gated if, so a malicious or compromisedMDS that sets msg->hdr.version = 1 reaches the IMPORT path withno version-gated decoder having validated snap_trace_len. Theshape has been present since ceph_handle_caps() was introduced.Validate snap_trace_len against the message front buffer beforeconsuming it, using the canonical ceph_decode_need() / ceph_has_room()helper. The helper bounds the length with subtraction (n <= end - p,guarded by end >= p) rather than pointer addition, so it is wrap-safefor the attacker-controlled u32 length on 32-bit builds wherep + snap_trace_len could overflow the address space. This matches therest of the ceph decode path (e.g. the pool_ns_len check a few linesbelow), and the existing goto bad cleanup already covers this exitpath.The Linux kernel CVE team has assigned CVE-2026-68160 to this issue. |
| 已分析 | 2.openEulerScore | 9.8 |
| 已分析 | 3.openEulerVector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 已分析 | 4.受影响版本排查 | master:不受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP4:受影响,openEuler-24.03-LTS-Next:不受影响,openEuler-24.03-LTS-SP1:受影响,openEuler-24.03-LTS-SP3:受影响,openEuler-24.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-24.03-LTS-SP2:受影响 |
| 已分析 | 5.是否涉及abi变化 | master:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP4:否,openEuler-24.03-LTS-Next:否,openEuler-24.03-LTS-SP1:否,openEuler-24.03-LTS-SP3:否,openEuler-24.03-LTS-SP4:否,openEuler-22.03-LTS-SP3:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-SP2:否 |
| 已分析 | 6.原因说明 | master:不受影响-漏洞代码不能被攻击者触发,openEuler-20.03-LTS-SP4:漏洞仍在分析中,openEuler-22.03-LTS-SP4:漏洞仍在分析中,openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-SP1:正常修复,openEuler-24.03-LTS-SP3:正常修复,openEuler-24.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP3:不修复-超出修复范围,openEuler-24.03-LTS:不修复-超出修复范围,openEuler-24.03-LTS-SP2:不修复-超出修复范围 |
请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.
经过cve-manager解析，部分分支PR未合入，如红色字体所示：
原因说明：
1.master:不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:漏洞仍在分析中
3.openEuler-22.03-LTS-SP4:漏洞仍在分析中
4.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS-SP1:正常修复(PR未合入)
6.openEuler-24.03-LTS-SP3:正常修复(PR未合入)
7.openEuler-24.03-LTS-SP4:正常修复(PR未合入)
8.openEuler-22.03-LTS-SP3:不修复-超出修复范围
9.openEuler-24.03-LTS:不修复-超出修复范围
10.openEuler-24.03-LTS-SP2:不修复-超出修复范围
CVE-2026-68160
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:
ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
ceph_handle_caps() reads snap_trace_len from the wire-format
ceph_mds_caps header and uses it unconditionally to build a fake
end pointer (snaptrace + snaptrace_len) that is later handed to
ceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case:
snaptrace = h + 1;
snaptrace_len = le32_to_cpu(h->snap_trace_len);
p = snaptrace + snaptrace_len;
...
case CEPH_CAP_OP_IMPORT:
if (snaptrace_len) {
...
if (ceph_update_snap_trace(mdsc, snaptrace,
snaptrace + snaptrace_len,
false, &realm)) { ... }
ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realm
from snaptrace using ceph_decode_need(&p, e, sizeof(*ri), bad)
with the attacker-supplied fake end e == snaptrace + snaptrace_len.
With snaptrace_len == 0xFFFFFFFF the bound check is trivially
satisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) past
the legitimate msg->front buffer, and ri->num_snaps /
ri->num_prior_parent_snaps then drive further out-of-bounds
reads of the encoded snap arrays.
The eleven msg_version >= 2 .. msg_version >= 12 decoder blocks
above the op switch each catch this OOB through their
ceph_decode_*_safe() / ceph_decode_need() helpers, but they sit
behind a hdr.version-gated if, so a malicious or compromised
MDS that sets msg->hdr.version = 1 reaches the IMPORT path with
no version-gated decoder having validated snap_trace_len. The
shape has been present since ceph_handle_caps() was introduced.
Validate snap_trace_len against the message front buffer before
consuming it, using the canonical ceph_decode_need() / ceph_has_room()
helper. The helper bounds the length with subtraction (n <= end - p,
guarded by end >= p) rather than pointer addition, so it is wrap-safe
for the attacker-controlled u32 length on 32-bit builds where
p + snap_trace_len could overflow the address space. This matches the
rest of the ceph decode path (e.g. the pool_ns_len check a few lines
below), and the existing goto bad cleanup already covers this exit
path.
The Linux kernel CVE team has assigned CVE-2026-68160 to this issue.
openEuler评分:(评分和向量)
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
受影响版本排查(受影响/不受影响):
1.master:不受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:受影响
8.openEuler-24.03-LTS-SP2:受影响
9.openEuler-24.03-LTS-SP3:受影响
10.openEuler-24.03-LTS-SP4:受影响
修复是否涉及abi变化(是/否)：
1.master:否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2:否
9.openEuler-24.03-LTS-SP3:否
10.openEuler-24.03-LTS-SP4:否
原因说明：
1.master:不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:正常修复
3.openEuler-22.03-LTS-SP3:不修复-超出修复范围
4.openEuler-22.03-LTS-SP4:暂不修复-漏洞仍在分析中
5.openEuler-24.03-LTS:不修复-超出修复范围
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:正常修复
8.openEuler-24.03-LTS-SP2:不修复-超出修复范围
9.openEuler-24.03-LTS-SP3:正常修复
10.openEuler-24.03-LTS-SP4:正常修复
@htforge 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态 | 分析项目 | 内容 |
|---|---|---|
| 已分析 | 1.影响性分析说明 | In the Linux kernel, the following vulnerability has been resolved:ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()ceph_handle_caps() reads snap_trace_len from the wire-formatceph_mds_caps header and uses it unconditionally to build a fakeend pointer (snaptrace + snaptrace_len) that is later handed toceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case: snaptrace = h + 1; snaptrace_len = le32_to_cpu(h->snap_trace_len); p = snaptrace + snaptrace_len; ... case CEPH_CAP_OP_IMPORT: if (snaptrace_len) { ... if (ceph_update_snap_trace(mdsc, snaptrace, snaptrace + snaptrace_len, false, &realm)) { ... }ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realmfrom snaptrace using ceph_decode_need(&p, e, sizeof(ri), bad)with the attacker-supplied fake end e == snaptrace + snaptrace_len.With snaptrace_len == 0xFFFFFFFF the bound check is triviallysatisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) pastthe legitimate msg->front buffer, and ri->num_snaps /ri->num_prior_parent_snaps then drive further out-of-boundsreads of the encoded snap arrays.The eleven msg_version >= 2 .. msg_version >= 12 decoder blocksabove the op switch each catch this OOB through theirceph_decode__safe() / ceph_decode_need() helpers, but they sitbehind a hdr.version-gated if, so a malicious or compromisedMDS that sets msg->hdr.version = 1 reaches the IMPORT path withno version-gated decoder having validated snap_trace_len. Theshape has been present since ceph_handle_caps() was introduced.Validate snap_trace_len against the message front buffer beforeconsuming it, using the canonical ceph_decode_need() / ceph_has_room()helper. The helper bounds the length with subtraction (n <= end - p,guarded by end >= p) rather than pointer addition, so it is wrap-safefor the attacker-controlled u32 length on 32-bit builds wherep + snap_trace_len could overflow the address space. This matches therest of the ceph decode path (e.g. the pool_ns_len check a few linesbelow), and the existing goto bad cleanup already covers this exitpath.The Linux kernel CVE team has assigned CVE-2026-68160 to this issue. |
| 已分析 | 2.openEulerScore | 9.8 |
| 已分析 | 3.openEulerVector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 已分析 | 4.受影响版本排查 | master:不受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP4:受影响,openEuler-24.03-LTS-Next:不受影响,openEuler-24.03-LTS-SP1:受影响,openEuler-24.03-LTS-SP3:受影响,openEuler-24.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-24.03-LTS-SP2:受影响 |
| 已分析 | 5.是否涉及abi变化 | master:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP4:否,openEuler-24.03-LTS-Next:否,openEuler-24.03-LTS-SP1:否,openEuler-24.03-LTS-SP3:否,openEuler-24.03-LTS-SP4:否,openEuler-22.03-LTS-SP3:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-SP2:否 |
| 已分析 | 6.原因说明 | master:不受影响-漏洞代码不能被攻击者触发,openEuler-20.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP4:漏洞仍在分析中,openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-SP1:正常修复,openEuler-24.03-LTS-SP3:正常修复,openEuler-24.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP3:不修复-超出修复范围,openEuler-24.03-LTS:不修复-超出修复范围,openEuler-24.03-LTS-SP2:不修复-超出修复范围 |
请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.
经过cve-manager解析，部分分支PR未合入，如红色字体所示：
原因说明：
1.master:不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:正常修复(PR未合入)
3.openEuler-22.03-LTS-SP4:漏洞仍在分析中
4.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS-SP1:正常修复(PR未合入)
6.openEuler-24.03-LTS-SP3:正常修复(PR未合入)
7.openEuler-24.03-LTS-SP4:正常修复(PR未合入)
8.openEuler-22.03-LTS-SP3:不修复-超出修复范围
9.openEuler-24.03-LTS:不修复-超出修复范围
10.openEuler-24.03-LTS-SP2:不修复-超出修复范围
CVE-2026-68160
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:
ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
ceph_handle_caps() reads snap_trace_len from the wire-format
ceph_mds_caps header and uses it unconditionally to build a fake
end pointer (snaptrace + snaptrace_len) that is later handed to
ceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case:
snaptrace = h + 1;
snaptrace_len = le32_to_cpu(h->snap_trace_len);
p = snaptrace + snaptrace_len;
...
case CEPH_CAP_OP_IMPORT:
if (snaptrace_len) {
...
if (ceph_update_snap_trace(mdsc, snaptrace,
snaptrace + snaptrace_len,
false, &realm)) { ... }
ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realm
from snaptrace using ceph_decode_need(&p, e, sizeof(*ri), bad)
with the attacker-supplied fake end e == snaptrace + snaptrace_len.
With snaptrace_len == 0xFFFFFFFF the bound check is trivially
satisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) past
the legitimate msg->front buffer, and ri->num_snaps /
ri->num_prior_parent_snaps then drive further out-of-bounds
reads of the encoded snap arrays.
The eleven msg_version >= 2 .. msg_version >= 12 decoder blocks
above the op switch each catch this OOB through their
ceph_decode_*_safe() / ceph_decode_need() helpers, but they sit
behind a hdr.version-gated if, so a malicious or compromised
MDS that sets msg->hdr.version = 1 reaches the IMPORT path with
no version-gated decoder having validated snap_trace_len. The
shape has been present since ceph_handle_caps() was introduced.
Validate snap_trace_len against the message front buffer before
consuming it, using the canonical ceph_decode_need() / ceph_has_room()
helper. The helper bounds the length with subtraction (n <= end - p,
guarded by end >= p) rather than pointer addition, so it is wrap-safe
for the attacker-controlled u32 length on 32-bit builds where
p + snap_trace_len could overflow the address space. This matches the
rest of the ceph decode path (e.g. the pool_ns_len check a few lines
below), and the existing goto bad cleanup already covers this exit
path.
The Linux kernel CVE team has assigned CVE-2026-68160 to this issue.
openEuler评分:(评分和向量)
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
受影响版本排查(受影响/不受影响):
1.master:不受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:受影响
8.openEuler-24.03-LTS-SP2:受影响
9.openEuler-24.03-LTS-SP3:受影响
10.openEuler-24.03-LTS-SP4:受影响
修复是否涉及abi变化(是/否)：
1.master:否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2:否
9.openEuler-24.03-LTS-SP3:否
10.openEuler-24.03-LTS-SP4:否
原因说明：
1.master:不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:正常修复
3.openEuler-22.03-LTS-SP3:不修复-超出修复范围
4.openEuler-22.03-LTS-SP4:正常修复
5.openEuler-24.03-LTS:不修复-超出修复范围
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:正常修复
8.openEuler-24.03-LTS-SP2:不修复-超出修复范围
9.openEuler-24.03-LTS-SP3:正常修复
10.openEuler-24.03-LTS-SP4:正常修复
@htforge 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态 | 分析项目 | 内容 |
|---|---|---|
| 已分析 | 1.影响性分析说明 | In the Linux kernel, the following vulnerability has been resolved:ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()ceph_handle_caps() reads snap_trace_len from the wire-formatceph_mds_caps header and uses it unconditionally to build a fakeend pointer (snaptrace + snaptrace_len) that is later handed toceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case: snaptrace = h + 1; snaptrace_len = le32_to_cpu(h->snap_trace_len); p = snaptrace + snaptrace_len; ... case CEPH_CAP_OP_IMPORT: if (snaptrace_len) { ... if (ceph_update_snap_trace(mdsc, snaptrace, snaptrace + snaptrace_len, false, &realm)) { ... }ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realmfrom snaptrace using ceph_decode_need(&p, e, sizeof(ri), bad)with the attacker-supplied fake end e == snaptrace + snaptrace_len.With snaptrace_len == 0xFFFFFFFF the bound check is triviallysatisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) pastthe legitimate msg->front buffer, and ri->num_snaps /ri->num_prior_parent_snaps then drive further out-of-boundsreads of the encoded snap arrays.The eleven msg_version >= 2 .. msg_version >= 12 decoder blocksabove the op switch each catch this OOB through theirceph_decode__safe() / ceph_decode_need() helpers, but they sitbehind a hdr.version-gated if, so a malicious or compromisedMDS that sets msg->hdr.version = 1 reaches the IMPORT path withno version-gated decoder having validated snap_trace_len. Theshape has been present since ceph_handle_caps() was introduced.Validate snap_trace_len against the message front buffer beforeconsuming it, using the canonical ceph_decode_need() / ceph_has_room()helper. The helper bounds the length with subtraction (n <= end - p,guarded by end >= p) rather than pointer addition, so it is wrap-safefor the attacker-controlled u32 length on 32-bit builds wherep + snap_trace_len could overflow the address space. This matches therest of the ceph decode path (e.g. the pool_ns_len check a few linesbelow), and the existing goto bad cleanup already covers this exitpath.The Linux kernel CVE team has assigned CVE-2026-68160 to this issue. |
| 已分析 | 2.openEulerScore | 9.8 |
| 已分析 | 3.openEulerVector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 已分析 | 4.受影响版本排查 | master:不受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP4:受影响,openEuler-24.03-LTS-Next:不受影响,openEuler-24.03-LTS-SP1:受影响,openEuler-24.03-LTS-SP3:受影响,openEuler-24.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-24.03-LTS-SP2:受影响 |
| 已分析 | 5.是否涉及abi变化 | master:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP4:否,openEuler-24.03-LTS-Next:否,openEuler-24.03-LTS-SP1:否,openEuler-24.03-LTS-SP3:否,openEuler-24.03-LTS-SP4:否,openEuler-22.03-LTS-SP3:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-SP2:否 |
| 已分析 | 6.原因说明 | master:不受影响-漏洞代码不能被攻击者触发,openEuler-20.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP4:正常修复,openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-SP1:正常修复,openEuler-24.03-LTS-SP3:正常修复,openEuler-24.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP3:不修复-超出修复范围,openEuler-24.03-LTS:不修复-超出修复范围,openEuler-24.03-LTS-SP2:不修复-超出修复范围 |
请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.
经过cve-manager解析，部分分支PR未合入，如红色字体所示：
原因说明：
1.master:不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:正常修复(PR未合入)
3.openEuler-22.03-LTS-SP4:正常修复(PR未合入)
4.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS-SP1:正常修复(PR未合入)
6.openEuler-24.03-LTS-SP3:正常修复(PR未合入)
7.openEuler-24.03-LTS-SP4:正常修复(PR未合入)
8.openEuler-22.03-LTS-SP3:不修复-超出修复范围
9.openEuler-24.03-LTS:不修复-超出修复范围
10.openEuler-24.03-LTS-SP2:不修复-超出修复范围
/check-issue
@htforge 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态 | 分析项目 | 内容 |
|---|---|---|
| 已分析 | 1.影响性分析说明 | In the Linux kernel, the following vulnerability has been resolved:ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()ceph_handle_caps() reads snap_trace_len from the wire-formatceph_mds_caps header and uses it unconditionally to build a fakeend pointer (snaptrace + snaptrace_len) that is later handed toceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case: snaptrace = h + 1; snaptrace_len = le32_to_cpu(h->snap_trace_len); p = snaptrace + snaptrace_len; ... case CEPH_CAP_OP_IMPORT: if (snaptrace_len) { ... if (ceph_update_snap_trace(mdsc, snaptrace, snaptrace + snaptrace_len, false, &realm)) { ... }ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realmfrom snaptrace using ceph_decode_need(&p, e, sizeof(ri), bad)with the attacker-supplied fake end e == snaptrace + snaptrace_len.With snaptrace_len == 0xFFFFFFFF the bound check is triviallysatisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) pastthe legitimate msg->front buffer, and ri->num_snaps /ri->num_prior_parent_snaps then drive further out-of-boundsreads of the encoded snap arrays.The eleven msg_version >= 2 .. msg_version >= 12 decoder blocksabove the op switch each catch this OOB through theirceph_decode__safe() / ceph_decode_need() helpers, but they sitbehind a hdr.version-gated if, so a malicious or compromisedMDS that sets msg->hdr.version = 1 reaches the IMPORT path withno version-gated decoder having validated snap_trace_len. Theshape has been present since ceph_handle_caps() was introduced.Validate snap_trace_len against the message front buffer beforeconsuming it, using the canonical ceph_decode_need() / ceph_has_room()helper. The helper bounds the length with subtraction (n <= end - p,guarded by end >= p) rather than pointer addition, so it is wrap-safefor the attacker-controlled u32 length on 32-bit builds wherep + snap_trace_len could overflow the address space. This matches therest of the ceph decode path (e.g. the pool_ns_len check a few linesbelow), and the existing goto bad cleanup already covers this exitpath.The Linux kernel CVE team has assigned CVE-2026-68160 to this issue. |
| 已分析 | 2.openEulerScore | 9.8 |
| 已分析 | 3.openEulerVector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 已分析 | 4.受影响版本排查 | master:不受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP4:受影响,openEuler-24.03-LTS-Next:不受影响,openEuler-24.03-LTS-SP1:受影响,openEuler-24.03-LTS-SP3:受影响,openEuler-24.03-LTS-SP4:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-24.03-LTS:受影响,openEuler-24.03-LTS-SP2:受影响 |
| 已分析 | 5.是否涉及abi变化 | master:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP4:否,openEuler-24.03-LTS-Next:否,openEuler-24.03-LTS-SP1:否,openEuler-24.03-LTS-SP3:否,openEuler-24.03-LTS-SP4:否,openEuler-22.03-LTS-SP3:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-SP2:否 |
| 已分析 | 6.原因说明 | master:不受影响-漏洞代码不能被攻击者触发,openEuler-20.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP4:正常修复,openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-SP1:正常修复,openEuler-24.03-LTS-SP3:正常修复,openEuler-24.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP3:不修复-超出修复范围,openEuler-24.03-LTS:不修复-超出修复范围,openEuler-24.03-LTS-SP2:不修复-超出修复范围 |
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经过cve-manager解析，部分分支PR未合入，如红色字体所示：
原因说明：
1.master:不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:正常修复
3.openEuler-22.03-LTS-SP4:正常修复
4.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS-SP1:正常修复(PR未合入)
6.openEuler-24.03-LTS-SP3:正常修复(PR未合入)
7.openEuler-24.03-LTS-SP4:正常修复(PR未合入)
8.openEuler-22.03-LTS-SP3:不修复-超出修复范围
9.openEuler-24.03-LTS:不修复-超出修复范围
10.openEuler-24.03-LTS-SP2:不修复-超出修复范围
一、漏洞信息
漏洞编号：CVE-2026-68160
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.12.33,6.18.18,6.4.0,6.6.0
CVSS评分：
BaseScore：9.8 Critical
Vector：CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()ceph_handle_caps() reads snap_trace_len from the wire-formatceph_mds_caps header and uses it unconditionally to build a fakeend pointer (snaptrace + snaptrace_len) that is later handed toceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case: snaptrace = h + 1; snaptrace_len = le32_to_cpu(h->snap_trace_len); p = snaptrace + snaptrace_len; ... case CEPH_CAP_OP_IMPORT: if (snaptrace_len) { ... if (ceph_update_snap_trace(mdsc, snaptrace, snaptrace + snaptrace_len, false, &realm)) { ... }ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realmfrom snaptrace using ceph_decode_need(&p, e, sizeof(ri), bad)with the attacker-supplied fake end e == snaptrace + snaptrace_len.With snaptrace_len == 0xFFFFFFFF the bound check is triviallysatisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) pastthe legitimate msg->front buffer, and ri->num_snaps /ri->num_prior_parent_snaps then drive further out-of-boundsreads of the encoded snap arrays.The eleven msg_version >= 2 .. msg_version >= 12 decoder blocksabove the op switch each catch this OOB through theirceph_decode__safe() / ceph_decode_need() helpers, but they sitbehind a hdr.version-gated if, so a malicious or compromisedMDS that sets msg->hdr.version = 1 reaches the IMPORT path withno version-gated decoder having validated snap_trace_len. Theshape has been present since ceph_handle_caps() was introduced.Validate snap_trace_len against the message front buffer beforeconsuming it, using the canonical ceph_decode_need() / ceph_has_room()helper. The helper bounds the length with subtraction (n <= end - p,guarded by end >= p) rather than pointer addition, so it is wrap-safefor the attacker-controlled u32 length on 32-bit builds wherep + snap_trace_len could overflow the address space. This matches therest of the ceph decode path (e.g. the pool_ns_len check a few linesbelow), and the existing goto bad cleanup already covers this exitpath.
漏洞公开时间：2026-08-10 21:20:02
漏洞创建时间：2026-08-11 05:46:54
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2026-68160
更多参考(点击展开)
漏洞分析指导链接：
https://atomgit.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
漏洞数据来源:
七彩瞬析开源风险感知平台
漏洞补丁信息：
详情(点击展开)
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()ceph_handle_caps() reads snap_trace_len from the wire-formatceph_mds_caps header and uses it unconditionally to build a fakeend pointer (snaptrace + snaptrace_len) that is later handed toceph_update_snap_trace() in the CEPH_CAP_OP_IMPORT case: snaptrace = h + 1; snaptrace_len = le32_to_cpu(h->snap_trace_len); p = snaptrace + snaptrace_len; ... case CEPH_CAP_OP_IMPORT: if (snaptrace_len) { ... if (ceph_update_snap_trace(mdsc, snaptrace, snaptrace + snaptrace_len, false, &realm)) { ... }ceph_update_snap_trace() then decodes a struct ceph_mds_snap_realmfrom snaptrace using ceph_decode_need(&p, e, sizeof(ri), bad)with the attacker-supplied fake end e == snaptrace + snaptrace_len.With snaptrace_len == 0xFFFFFFFF the bound check is triviallysatisfied, ri = p reads sizeof(struct ceph_mds_snap_realm) pastthe legitimate msg->front buffer, and ri->num_snaps /ri->num_prior_parent_snaps then drive further out-of-boundsreads of the encoded snap arrays.The eleven msg_version >= 2 .. msg_version >= 12 decoder blocksabove the op switch each catch this OOB through theirceph_decode__safe() / ceph_decode_need() helpers, but they sitbehind a hdr.version-gated if, so a malicious or compromisedMDS that sets msg->hdr.version = 1 reaches the IMPORT path withno version-gated decoder having validated snap_trace_len. Theshape has been present since ceph_handle_caps() was introduced.Validate snap_trace_len against the message front buffer beforeconsuming it, using the canonical ceph_decode_need() / ceph_has_room()helper. The helper bounds the length with subtraction (n <= end - p,guarded by end >= p) rather than pointer addition, so it is wrap-safefor the attacker-controlled u32 length on 32-bit builds wherep + snap_trace_len could overflow the address space. This matches therest of the ceph decode path (e.g. the pool_ns_len check a few linesbelow), and the existing goto bad cleanup already covers this exitpath.The Linux kernel CVE team has assigned CVE-2026-68160 to this issue.
openEuler评分：
9.8
Vector：CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
受影响版本排查(受影响/不受影响)：
1.master(6.18.40):不受影响
2.openEuler-20.03-LTS-SP4(4.19.90):受影响
3.openEuler-22.03-LTS-SP4(5.10.0):受影响
4.openEuler-24.03-LTS-Next(6.6.0):不受影响
5.openEuler-24.03-LTS-SP1(6.6.0):受影响
6.openEuler-24.03-LTS-SP3(6.6.0):受影响
7.openEuler-24.03-LTS-SP4(6.6.0):受影响
8.openEuler-22.03-LTS-SP3(5.10.0):受影响
9.openEuler-24.03-LTS(6.6.0):受影响
10.openEuler-24.03-LTS-SP2(6.6.0):受影响
修复是否涉及abi变化(是/否)：
1.master(6.18.40):否
2.openEuler-20.03-LTS-SP4(4.19.90):否
3.openEuler-22.03-LTS-SP4(5.10.0):否
4.openEuler-24.03-LTS-Next(6.6.0):否
5.openEuler-24.03-LTS-SP1(6.6.0):否
6.openEuler-24.03-LTS-SP3(6.6.0):否
7.openEuler-24.03-LTS-SP4(6.6.0):否
8.openEuler-22.03-LTS-SP3(5.10.0):否
9.openEuler-24.03-LTS(6.6.0):否
10.openEuler-24.03-LTS-SP2(6.6.0):否
原因说明：
1.master(6.18.40):不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4(4.19.90):正常修复
3.openEuler-22.03-LTS-SP4(5.10.0):正常修复
4.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS-SP1(6.6.0):正常修复
6.openEuler-24.03-LTS-SP3(6.6.0):正常修复
7.openEuler-24.03-LTS-SP4(6.6.0):正常修复
8.openEuler-22.03-LTS-SP3(5.10.0):不修复-超出修复范围
9.openEuler-24.03-LTS(6.6.0):不修复-超出修复范围
10.openEuler-24.03-LTS-SP2(6.6.0):不修复-超出修复范围