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CVE-2026-90011 #19038
qiao-yifan4创建于  9月17日
qiao-yifan4
9月17日 创建

一、漏洞信息
漏洞编号:CVE-2026-90011
漏洞归属组件:kernel
漏洞归属的版本:5.10.0
CVSS评分:
BaseScore:9.1 Critical
Vector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
漏洞简述:
In the Linux kernel, the following vulnerability has been resolved:scsi: target: iscsi: Reserve a terminator byte for the login payloadiscsi_target_check_login_request() rejects a login PDU whoseDataSegmentLength exceeds MAX_KEY_VALUE_PAIRS, but the test is > andlogin->req_buf is allocated with exactly MAX_KEY_VALUE_PAIRSbytes. Since iscsit_get_login_rx() receives payload_length + paddingbytes, where padding = ((-payload_length) & 3);any payload_length from 8189 to 8192 fills the whole 8192 bytebuffer. The write stays in bounds, but no byte is left for a NULterminator.The buffer is subsequently consumed as a C string. In the CHAP pathchap_check_algorithm() calls kstrdup(a_str), and extract_param() callsstrstr(in_buf, pattern) followed by strlen_semi(), none of which take alength. convert_null_to_semi() additionally rewrites every embedded NULto ; , so even a payload made of well formed NUL separated key=valuerecords is left without a terminator. These walk past the end of theobject into adjacent slab memory. It is reachable by an unauthenticatedinitiator against a portal configured for CHAP; when authentication isnot required iscsi_login_zero_tsih_s2() rewrites AuthMethod to None andthe CHAP path is never entered.Allocate one extra byte. kzalloc() zeroes it and nothing ever writes toit, as every writer copies to offset 0 for at most MAX_KEY_VALUE_PAIRSbytes, so the buffer is always terminated.
漏洞公开时间:2026-09-16 19:17:13
漏洞创建时间:2026-09-17 14:37:37
漏洞详情参考链接:
https://nvd.nist.gov/vuln/detail/CVE-2026-90011

更多参考(点击展开)
参考来源 参考链接 来源链接
https://git.kernel.org/stable/c/eb9dadf4d552ebe10644871c5189286552aa48f5
https://git.kernel.org/stable/c/5fac79f248c37774d1dd761406f83d25ca6ff8e4
https://git.kernel.org/stable/c/f4825922d2fb371e2b969697d792077f1b62b62c
https://git.kernel.org/stable/c/3ddf3ea291a0ef2ea93b82e158960ac2cc42302b
https://lore.kernel.org/linux-cve-announce/2026091602-CVE-2026-90011-bdc3@gregkh/T/#u
https://git.kernel.org/stable/c/b19dc17ed963ac36c0db4b52a1803fb11169f91f
https://git.kernel.org/stable/c/6b589ef9d5f6cdc70d2b4f269ca6cf26b5ebb076
https://git.kernel.org/stable/c/1624bff4c5118ad494d50ad94d44f22064667a7f
https://git.kernel.org/stable/c/6ddddcad436d8e6e619204d3c848147ff2f5bf1e

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)
影响的包 修复版本 修复补丁 问题引入补丁 来源
https://git.kernel.org/stable/c/eb9dadf4d552ebe10644871c5189286552aa48f5 cybersecurity
https://git.kernel.org/stable/c/5fac79f248c37774d1dd761406f83d25ca6ff8e4 cybersecurity
https://git.kernel.org/stable/c/f4825922d2fb371e2b969697d792077f1b62b62c cybersecurity
https://git.kernel.org/stable/c/3ddf3ea291a0ef2ea93b82e158960ac2cc42302b cybersecurity
https://git.kernel.org/stable/c/b19dc17ed963ac36c0db4b52a1803fb11169f91f cybersecurity
https://git.kernel.org/stable/c/6b589ef9d5f6cdc70d2b4f269ca6cf26b5ebb076 cybersecurity
https://git.kernel.org/stable/c/1624bff4c5118ad494d50ad94d44f22064667a7f cybersecurity
https://git.kernel.org/stable/c/6ddddcad436d8e6e619204d3c848147ff2f5bf1e cybersecurity

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:scsi: target: iscsi: Reserve a terminator byte for the login payloadiscsi_target_check_login_request() rejects a login PDU whoseDataSegmentLength exceeds MAX_KEY_VALUE_PAIRS, but the test is '>' andlogin->req_buf is allocated with exactly MAX_KEY_VALUE_PAIRSbytes. Since iscsit_get_login_rx() receives payload_length + paddingbytes, wherepadding = ((-payload_length) & 3);any payload_length from 8189 to 8192 fills the whole 8192 bytebuffer. The write stays in bounds, but no byte is left for a NULterminator.The buffer is subsequently consumed as a C string. In the CHAP pathchap_check_algorithm() calls kstrdup(a_str), and extract_param() callsstrstr(in_buf, pattern) followed by strlen_semi(), none of which take alength. convert_null_to_semi() additionally rewrites every embedded NULto ';', so even a payload made of well formed NUL separated key=valuerecords is left without a terminator. These walk past the end of theobject into adjacent slab memory. It is reachable by an unauthenticatedinitiator against a portal configured for CHAP; when authentication isnot required iscsi_login_zero_tsih_s2() rewrites AuthMethod to None andthe CHAP path is never entered.Allocate one extra byte. kzalloc() zeroes it and nothing ever writes toit, as every writer copies to offset 0 for at most MAX_KEY_VALUE_PAIRSbytes, so the buffer is always terminated.The Linux kernel CVE team has assigned CVE-2026-90011 to this issue.
openEuler评分:
9.1
Vector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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

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devstation-robot
devstation-robot
9月17日 评论:

检测到新建 CVE Issue,CVE-ID: CVE-2026-90011。

你可以通过以下两种方式使用 CVE 修复服务:

  1. 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;
  2. 在指定分支上创建 PR(修复提交)

    • 在本 Issue 下按如下格式评论(branch、name、email 为必填字段,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: opencode
  • 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):可选 portgpt、mystique 或 opencode;不填时默认使用 opencode;

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.

likedislike
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9月17日 修改了issue 的描述
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9月17日 将 peterpangogogo 设为负责人
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9月17日 将 wkfxxx、zeng_zhaorong、sanglipeng、qiao-yifan4、oekernel、hanjunguo 设为负责人,移除负责人 peterpangogogo
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9月17日 添加了label:sig/Kernel
此处折叠了46条消息 查看更多
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26 天前 issue状态由 进行中 改变为 待办的
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14 天前 关闭了 issue
openeuler-ci-bot
openeuler-ci-bot成员
14 天前 评论:

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

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14 天前 重新打开了 issue
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14 天前 issue状态由 待办的 改变为 进行中