CVE-2024-50116

一、漏洞信息
漏洞编号：CVE-2024-50116
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 V3.0分值：
BaseScore：5.5 Medium
Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:nilfs2: fix kernel bug due to missing clearing of buffer delay flagSyzbot reported that after nilfs2 reads a corrupted file system imageand degrades to read-only, the BUG_ON check for the buffer delay flagin submit_bh_wbc() may fail, causing a kernel bug.This is because the buffer delay flag is not cleared when clearing thebuffer state flags to discard a page/folio or a buffer head. So, fixthis.This became necessary when the use of nilfs2 s own page clear routinewas expanded. This state inconsistency does not occur if the bufferis written normally by log writing.
漏洞公开时间：2024-11-06 02:15:14
漏洞创建时间：2024-11-06 02:35:01
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2024-50116

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/033bc52f35868c2493a2d95c56ece7fc155d7cb3
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/27524f65621f490184f2ace44cd8e5f3685af4a3
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/412a30b1b28d6073ba29c46a2b0f324c5936293f
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6ed469df0bfbef3e4b44fca954a781919db9f7ab
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/743c78d455e784097011ea958b27396001181567
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/822203f6355f4b322d21e7115419f6b98284be25
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9f2ab98371c2f2488bf3bf3f9b2a73510545e9c1
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c6f58ff2d4c552927fe9a187774e668ebba6c7aa
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-50116	https://bugzilla.suse.com/show_bug.cgi?id=1232892
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2024-50116	https://bugzilla.suse.com/show_bug.cgi?id=1232892
suse_bugzilla	https://git.kernel.org/stable/c/27524f65621f490184f2ace44cd8e5f3685af4a3	https://bugzilla.suse.com/show_bug.cgi?id=1232892
suse_bugzilla	https://git.kernel.org/stable/c/6ed469df0bfbef3e4b44fca954a781919db9f7ab	https://bugzilla.suse.com/show_bug.cgi?id=1232892
suse_bugzilla	https://git.kernel.org/stable/c/743c78d455e784097011ea958b27396001181567	https://bugzilla.suse.com/show_bug.cgi?id=1232892
suse_bugzilla	https://git.kernel.org/stable/c/822203f6355f4b322d21e7115419f6b98284be25	https://bugzilla.suse.com/show_bug.cgi?id=1232892
suse_bugzilla	https://git.kernel.org/stable/c/c6f58ff2d4c552927fe9a187774e668ebba6c7aa	https://bugzilla.suse.com/show_bug.cgi?id=1232892
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-50116.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1232892
debian		https://security-tracker.debian.org/tracker/CVE-2024-50116

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
		https://git.kernel.org/stable/c/033bc52f35868c2493a2d95c56ece7fc155d7cb3		nvd
		https://git.kernel.org/stable/c/27524f65621f490184f2ace44cd8e5f3685af4a3		nvd
		https://git.kernel.org/stable/c/412a30b1b28d6073ba29c46a2b0f324c5936293f		nvd
		https://git.kernel.org/stable/c/6ed469df0bfbef3e4b44fca954a781919db9f7ab		nvd
		https://git.kernel.org/stable/c/743c78d455e784097011ea958b27396001181567		nvd
		https://git.kernel.org/stable/c/822203f6355f4b322d21e7115419f6b98284be25		nvd
		https://git.kernel.org/stable/c/9f2ab98371c2f2488bf3bf3f9b2a73510545e9c1		nvd
		https://git.kernel.org/stable/c/c6f58ff2d4c552927fe9a187774e668ebba6c7aa		nvd

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: fix kernel bug due to missing clearing of buffer delay flagSyzbot reported that after nilfs2 reads a corrupted file system imageand degrades to read-only, the BUG_ON check for the buffer delay flagin submit_bh_wbc() may fail, causing a kernel bug.This is because the buffer delay flag is not cleared when clearing thebuffer state flags to discard a page/folio or a buffer head. So, fixthis.This became necessary when the use of nilfs2 s own page clear routinewas expanded. This state inconsistency does not occur if the bufferis written normally by log writing.
openEuler评分：
5.5
Vector：CVSS：3.0/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-SP4(4.19.90):受影响
2.openEuler-22.03-LTS-SP1(5.10.0):受影响
3.openEuler-22.03-LTS-SP3(5.10.0):受影响
4.openEuler-22.03-LTS-SP4(5.10.0):受影响
5.openEuler-24.03-LTS(6.6.0):受影响
6.openEuler-24.03-LTS-SP1(6.6.0):受影响
7.master(6.6.0):不受影响
8.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-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP1(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.6.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(5.10.0):否
8.openEuler-24.03-LTS-SP1(6.6.0):否

原因说明：
1.openEuler-22.03-LTS-SP1(5.10.0):正常修复
2.openEuler-22.03-LTS-SP3(5.10.0):正常修复
3.openEuler-22.03-LTS-SP4(5.10.0):正常修复
4.openEuler-24.03-LTS(6.6.0):正常修复
5.openEuler-24.03-LTS-SP1(6.6.0):正常修复
6.openEuler-20.03-LTS-SP4(4.19.90):暂不修复-暂无解决方案或补丁
7.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2537

Hi openeuler-ci-bot, welcome to the openEuler Community.
I'm the Bot here serving you. You can find the instructions on how to interact with me at Here.
If you have any questions, please contact the SIG: Kernel, and any of the maintainers.

@yangyingliang ,@jiaoff ,@guohaocs2c ,@hanjun-guo ,@woqidaideshi ,@newbeats ,@zhangyi089 ,@colyli ,@thundertown ,@htforge ,@chiqijun ,@lengchao ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@wkfxxx ,@SuperSix173 ,@jentlestea ,@oskernel0719 ,@gasonchen
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), 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(6.6.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP1(5.10.0):
4.openEuler-22.03-LTS-SP3(5.10.0):
5.openEuler-22.03-LTS-SP4(5.10.0):
6.openEuler-24.03-LTS(6.6.0):
7.openEuler-24.03-LTS-Next(6.6.0):

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

原因说明：
1.master(6.6.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP1(5.10.0):
4.openEuler-22.03-LTS-SP3(5.10.0):
5.openEuler-22.03-LTS-SP4(5.10.0):
6.openEuler-24.03-LTS(6.6.0):
7.openEuler-24.03-LTS-Next(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
受影响	正常修复
受影响	暂不修复-漏洞仍在分析中
受影响	暂不修复-暂无解决方案或补丁
受影响	暂不修复-待升级版本修复
受影响	不修复-超出修复范围
受影响	不修复-特殊原因导致不再修复
不受影响	不受影响-组件不存在
不受影响	不受影响-已有内置的内联控制或缓解措施
不受影响	不受影响-漏洞代码不能被攻击者触发
不受影响	不受影响-漏洞代码不在执行路径
不受影响	不受影响-漏洞代码不存在

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

CVE-2024-50116

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

nilfs2: fix kernel bug due to missing clearing of buffer delay flag

Syzbot reported that after nilfs2 reads a corrupted file system image
and degrades to read-only, the BUG_ON check for the buffer delay flag
in submit_bh_wbc() may fail, causing a kernel bug.

This is because the buffer delay flag is not cleared when clearing the
buffer state flags to discard a page/folio or a buffer head. So, fix
this.

This became necessary when the use of nilfs2's own page clear routine
was expanded. This state inconsistency does not occur if the buffer
is written normally by log writing.

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-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.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-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@zhixiuzhou 4.受影响版本排查(受影响/不受影响)=> 没有分析或未按正确格式填写，涉及分支: [openEuler-24.03-LTS-SP1]

CVE-2024-50116

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

nilfs2: fix kernel bug due to missing clearing of buffer delay flag

Syzbot reported that after nilfs2 reads a corrupted file system image
and degrades to read-only, the BUG_ON check for the buffer delay flag
in submit_bh_wbc() may fail, causing a kernel bug.

This is because the buffer delay flag is not cleared when clearing the
buffer state flags to discard a page/folio or a buffer head. So, fix
this.

This became necessary when the use of nilfs2's own page clear routine
was expanded. This state inconsistency does not occur if the buffer
is written normally by log writing.

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-SP4:受影响
2.openEuler-22.03-LTS-SP1:受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响
8.openEuler-24.03-LTS-SP1:受影响

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

原因说明：
1.master(23.08.5):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-暂无解决方案或补丁
3.openEuler-22.03-LTS-SP1:正常修复
4.openEuler-22.03-LTS-SP3:正常修复
5.openEuler-22.03-LTS-SP4:正常修复
6.openEuler-24.03-LTS:正常修复
7.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-SP1:正常修复

@sanglipeng 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:nilfs2: fix kernel bug due to missing clearing of buffer delay flagSyzbot reported that after nilfs2 reads a corrupted file system imageand degrades to read-only, the BUG_ON check for the buffer delay flagin submit_bh_wbc() may fail, causing a kernel bug.This is because the buffer delay flag is not cleared when clearing thebuffer state flags to discard a page/folio or a buffer head. So, fixthis.This became necessary when the use of nilfs2's own page clear routinewas expanded. This state inconsistency does not occur if the bufferis written normally by log writing.
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-SP4:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-22.03-LTS-SP4:受影响,openEuler-24.03-LTS:受影响,openEuler-24.03-LTS-SP1:受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响
已分析	5.是否涉及abi变化	openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否,openEuler-24.03-LTS-SP1:否
已分析	6.原因说明	openEuler-22.03-LTS-SP1:正常修复,openEuler-22.03-LTS-SP3:正常修复,openEuler-22.03-LTS-SP4:正常修复,openEuler-24.03-LTS:正常修复,openEuler-24.03-LTS-SP1:正常修复,openEuler-20.03-LTS-SP4:暂不修复-暂无解决方案或补丁,master:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发

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.

@gatieme ,@xiexiuqi ,@yangyingliang ,@pi3orama ,@jiaoff ,@ci-robot
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: #IB2BWP:CVE-2024-50116
受影响分支: openEuler-22.03-LTS-SP1/openEuler-22.03-LTS-SP3/openEuler-22.03-LTS-SP4
具体操作参考: https://gitee.com/help/articles/4142

@gatieme ,@xiexiuqi ,@yangyingliang ,@pi3orama ,@jiaoff ,@linan888
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: #IB2BWP:CVE-2024-50116
受影响分支: openEuler-22.03-LTS-SP3/openEuler-22.03-LTS-SP4
具体操作参考: https://gitee.com/help/articles/4142

@gatieme ,@xiexiuqi ,@yangyingliang ,@pi3orama ,@jiaoff ,@linan888
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: #IB2BWP:CVE-2024-50116
受影响分支: openEuler-22.03-LTS-SP4
具体操作参考: https://gitee.com/help/articles/4142