CVE-2024-26955

一、漏洞信息
漏洞编号：CVE-2024-26955
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
CVSS V2.0分值：
BaseScore：0.0 Low
Vector：CVSS：2.0/
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:nilfs2: prevent kernel bug at submit_bh_wbc()Fix a bug where nilfs_get_block() returns a successful status whensearching and inserting the specified block both fail inconsistently. Ifthis inconsistent behavior is not due to a previously fixed bug, then anunexpected race is occurring, so return a temporary error -EAGAIN instead.This prevents callers such as __block_write_begin_int() from requesting aread into a buffer that is not mapped, which would cause the BUG_ON checkfor the BH_Mapped flag in submit_bh_wbc() to fail.
漏洞公开时间：2024-05-01 14:15:11
漏洞创建时间：2024-05-01 14:49:27
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2024-26955

更多参考(点击展开)

参考来源	参考链接	来源链接
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44c
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/192e9f9078c96be30b31c4b44d6294b24520fce5
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/269cdf353b5bdd15f1a079671b0f889113865f20
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/32eaee72e96590a75445c8a6c7c1057673b47e07
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/48d443d200237782dc82e6b60663ec414ef02e39
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/76ffbe911e2798c7296968f5fd72f7bf67207a8d
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/91e4c4595fae5e87069e44687ae879091783c183
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ca581d237f3b8539c044205bb003de71d75d227c
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f0fe7ad5aff4f0fcf988913313c497de85f1e186
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-26955	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2024-26955	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://git.kernel.org/stable/c/0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44c	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://git.kernel.org/stable/c/192e9f9078c96be30b31c4b44d6294b24520fce5	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://git.kernel.org/stable/c/269cdf353b5bdd15f1a079671b0f889113865f20	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://git.kernel.org/stable/c/32eaee72e96590a75445c8a6c7c1057673b47e07	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://git.kernel.org/stable/c/48d443d200237782dc82e6b60663ec414ef02e39	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://git.kernel.org/stable/c/76ffbe911e2798c7296968f5fd72f7bf67207a8d	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://git.kernel.org/stable/c/91e4c4595fae5e87069e44687ae879091783c183	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://git.kernel.org/stable/c/ca581d237f3b8539c044205bb003de71d75d227c	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://git.kernel.org/stable/c/f0fe7ad5aff4f0fcf988913313c497de85f1e186	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-26955.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1223657
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2278189	https://bugzilla.suse.com/show_bug.cgi?id=1223657
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024050128-CVE-2024-26955-3205@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2278189
ubuntu	https://www.cve.org/CVERecord?id=CVE-2024-26955	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://git.kernel.org/linus/269cdf353b5bdd15f1a079671b0f889113865f20 (6.9-rc1)	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://git.kernel.org/stable/c/91e4c4595fae5e87069e44687ae879091783c183	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://git.kernel.org/stable/c/32eaee72e96590a75445c8a6c7c1057673b47e07	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://git.kernel.org/stable/c/f0fe7ad5aff4f0fcf988913313c497de85f1e186	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://git.kernel.org/stable/c/ca581d237f3b8539c044205bb003de71d75d227c	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://git.kernel.org/stable/c/192e9f9078c96be30b31c4b44d6294b24520fce5	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://git.kernel.org/stable/c/0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44c	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://git.kernel.org/stable/c/48d443d200237782dc82e6b60663ec414ef02e39	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://git.kernel.org/stable/c/76ffbe911e2798c7296968f5fd72f7bf67207a8d	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://git.kernel.org/stable/c/269cdf353b5bdd15f1a079671b0f889113865f20	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2024-26955	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://launchpad.net/bugs/cve/CVE-2024-26955	https://ubuntu.com/security/CVE-2024-26955
ubuntu	https://security-tracker.debian.org/tracker/CVE-2024-26955	https://ubuntu.com/security/CVE-2024-26955
debian		https://security-tracker.debian.org/tracker/CVE-2024-26955

漏洞分析指导链接：
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
漏洞数据来源:
openBrain开源漏洞感知系统
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
linux		https://git.kernel.org/linus/269cdf353b5bdd15f1a079671b0f889113865f20	https://git.kernel.org/linus/1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b	ubuntu

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:nilfs2: prevent kernel bug at submit_bh_wbc()Fix a bug where nilfs_get_block() returns a successful status whensearching and inserting the specified block both fail inconsistently. Ifthis inconsistent behavior is not due to a previously fixed bug, then anunexpected race is occurring, so return a temporary error -EAGAIN instead.This prevents callers such as __block_write_begin_int() from requesting aread into a buffer that is not mapped, which would cause the BUG_ON checkfor the BH_Mapped flag in submit_bh_wbc() to fail.
openEuler评分：
5.5
Vector：CVSS：2.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
受影响版本排查(受影响/不受影响)：
1.openEuler-20.03-LTS-SP1(4.19.90):受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS(5.10.0):受影响
4.openEuler-22.03-LTS-SP1(5.10.0):受影响
5.openEuler-22.03-LTS-SP2(5.10.0):受影响
6.openEuler-22.03-LTS-SP3:受影响
7.openEuler-22.03-LTS-SP4:不受影响
8.master(6.1.0):不受影响
9.openEuler-22.03-LTS-Next(5.10.0):不受影响
10.openEuler-24.03-LTS(6.6.0):不受影响
11.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS(5.10.0):否
4.openEuler-22.03-LTS-SP1(5.10.0):否
5.openEuler-22.03-LTS-SP2(5.10.0):否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next(5.10.0):否
9.openEuler-24.03-LTS(6.6.0):否
10.openEuler-24.03-LTS-Next(6.6.0):否
11.openEuler-22.03-LTS-SP4:否

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issue处理注意事项:
1. 当前issue受影响的分支提交pr时, 须在pr描述中填写当前issue编号进行关联, 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,未引入的分支不需要填写, 否则无法关闭当前issue;
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: 内容的标题名称(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))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(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):
9.openEuler-24.03-LTS:
10.openEuler-24.03-LTS-Next:

修复是否涉及abi变化(是/否)：
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):
9.openEuler-24.03-LTS:
10.openEuler-24.03-LTS-Next:

issue处理具体操作请参考:
https://gitee.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://gitee.com/help/articles/4142

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2024-26955	None	None	https://git.kernel.org/stable/c/32eaee72e96590a75445c8a6c7c1057673b47e07 https://git.kernel.org/stable/c/48d443d200237782dc82e6b60663ec414ef02e39 https://git.kernel.org/stable/c/f0fe7ad5aff4f0fcf988913313c497de85f1e186 https://git.kernel.org/stable/c/ca581d237f3b8539c044205bb003de71d75d227c https://git.kernel.org/stable/c/91e4c4595fae5e87069e44687ae879091783c183 https://git.kernel.org/stable/c/269cdf353b5bdd15f1a079671b0f889113865f20 https://git.kernel.org/stable/c/192e9f9078c96be30b31c4b44d6294b24520fce5 https://git.kernel.org/stable/c/76ffbe911e2798c7296968f5fd72f7bf67207a8d https://git.kernel.org/stable/c/0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44c
https://www.opencve.io/cve/CVE-2024-26955	None	None	https://git.kernel.org/stable/c/32eaee72e96590a75445c8a6c7c1057673b47e07 https://git.kernel.org/stable/c/48d443d200237782dc82e6b60663ec414ef02e39 https://git.kernel.org/stable/c/f0fe7ad5aff4f0fcf988913313c497de85f1e186 https://git.kernel.org/stable/c/ca581d237f3b8539c044205bb003de71d75d227c https://git.kernel.org/stable/c/91e4c4595fae5e87069e44687ae879091783c183 https://git.kernel.org/stable/c/269cdf353b5bdd15f1a079671b0f889113865f20 https://git.kernel.org/stable/c/192e9f9078c96be30b31c4b44d6294b24520fce5 https://git.kernel.org/stable/c/76ffbe911e2798c7296968f5fd72f7bf67207a8d https://git.kernel.org/stable/c/0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44c
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-26955
https://security-tracker.debian.org/tracker/CVE-2024-26955	None	None	https://git.kernel.org/linus/269cdf353b5bdd15f1a079671b0f889113865f20

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

@ci-robot 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS,openEuler-24.03-LTS-Next 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@郭梦琪请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS,openEuler-24.03-LTS-Next 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@ci-robot 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS,openEuler-24.03-LTS-Next 受影响/不受影响.
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请确认分支信息是否填写完整,否则将无法关闭当前issue.

CVE-2024-26955

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

nilfs2: prevent kernel bug at submit_bh_wbc()

Fix a bug where nilfs_get_block() returns a successful status when
searching and inserting the specified block both fail inconsistently. If
this inconsistent behavior is not due to a previously fixed bug, then an
unexpected race is occurring, so return a temporary error -EAGAIN instead.

This prevents callers such as __block_write_begin_int() from requesting a
read into a buffer that is not mapped, which would cause the BUG_ON check
for the BH_Mapped flag in submit_bh_wbc() to fail.

openEuler评分:(评分和向量)
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS:受影响
4.openEuler-22.03-LTS-SP1:受影响
5.openEuler-22.03-LTS-SP2:受影响
6.openEuler-22.03-LTS-SP3:受影响
7.openEuler-22.03-LTS-SP4:不受影响
8.master(6.1.0):不受影响
9.openEuler-22.03-LTS-Next:不受影响
10.openEuler-24.03-LTS:不受影响
11.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否
11.openEuler-22.03-LTS-SP4:否

===========================================================

@sanglipeng 经过 cve-manager 解析, 已分析的内容如下表所示:

状态	需分析	内容
已分析	1.影响性分析说明	In the Linux kernel, the following vulnerability has been resolved:nilfs2: prevent kernel bug at submit_bh_wbc()Fix a bug where nilfs_get_block() returns a successful status whensearching and inserting the specified block both fail inconsistently. Ifthis inconsistent behavior is not due to a previously fixed bug, then anunexpected race is occurring, so return a temporary error -EAGAIN instead.This prevents callers such as __block_write_begin_int() from requesting aread into a buffer that is not mapped, which would cause the BUG_ON checkfor the BH_Mapped flag in submit_bh_wbc() to fail.
已分析	2.openEulerScore	5.5
已分析	3.openEulerVector	AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
已分析	4.受影响版本排查	openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP2:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-22.03-LTS-Next:不受影响,openEuler-24.03-LTS:不受影响,openEuler-24.03-LTS-Next:不受影响
已分析	5.修复是否涉及abi变化	openEuler-20.03-LTS-SP1:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP2:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-22.03-LTS-Next:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否

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.

@成坚 (CHENG Jian) ,@Xie XiuQi ,@YangYingliang ,@pi3orama ,@jiaoff ,@郭梦琪
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #I9L5DI:CVE-2024-26955
受影响分支: openEuler-22.03-LTS-SP2/openEuler-22.03-LTS/openEuler-22.03-LTS-SP1
具体操作参考: https://gitee.com/help/articles/4142

src-openEuler/kernel

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CVE-2024-26955

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