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CVE-2024-47660

已完成
CVE和安全问题 拥有者
创建于  
2024-10-09 22:49

一、漏洞信息
漏洞编号:CVE-2024-47660
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:4.7 Medium
Vector:CVSS:3.0/AV:L/AC:H/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:fsnotify: clear PARENT_WATCHED flags lazilyIn some setups directories can have many (usually negative) dentries.Hence __fsnotify_update_child_dentry_flags() function can take asignificant amount of time. Since the bulk of this function happensunder inode->i_lock this causes a significant contention on the lockwhen we remove the watch from the directory as the__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()races with __fsnotify_update_child_dentry_flags() calls from__fsnotify_parent() happening on children. This can lead upto softlockupreports reported by users.Fix the problem by calling fsnotify_update_children_dentry_flags() toset PARENT_WATCHED flags only when parent starts watching children.When parent stops watching children, clear false positive PARENT_WATCHEDflags lazily in __fsnotify_parent() for each accessed child.
漏洞公开时间:2024-10-09 22:15:07
漏洞创建时间:2024-10-09 22:49:01
漏洞详情参考链接:
https://nvd.nist.gov/vuln/detail/CVE-2024-47660

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/172e422ffea20a89bfdc672741c1aad6fbb5044e
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/3f3ef1d9f66b93913ce2171120d9226b55acd41d
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/7ef1d2e240c32b1f337a37232d037b07e3919e1a
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/d8c42405fc3507cc43ba7e4986a773c3fc633f6e
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/f9a48bc3dd9099935751458a5bbbea4b7c28abc8
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/fc1b1e135c3f72382f792e6c319fc088d5523ad5
suse_bugzilla http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-47660 https://bugzilla.suse.com/show_bug.cgi?id=1231439
suse_bugzilla https://www.cve.org/CVERecord?id=CVE-2024-47660 https://bugzilla.suse.com/show_bug.cgi?id=1231439
suse_bugzilla https://git.kernel.org/stable/c/172e422ffea20a89bfdc672741c1aad6fbb5044e https://bugzilla.suse.com/show_bug.cgi?id=1231439
suse_bugzilla https://git.kernel.org/stable/c/3f3ef1d9f66b93913ce2171120d9226b55acd41d https://bugzilla.suse.com/show_bug.cgi?id=1231439
suse_bugzilla https://git.kernel.org/stable/c/7ef1d2e240c32b1f337a37232d037b07e3919e1a https://bugzilla.suse.com/show_bug.cgi?id=1231439
suse_bugzilla https://git.kernel.org/stable/c/d8c42405fc3507cc43ba7e4986a773c3fc633f6e https://bugzilla.suse.com/show_bug.cgi?id=1231439
suse_bugzilla https://git.kernel.org/stable/c/f9a48bc3dd9099935751458a5bbbea4b7c28abc8 https://bugzilla.suse.com/show_bug.cgi?id=1231439
suse_bugzilla https://git.kernel.org/stable/c/fc1b1e135c3f72382f792e6c319fc088d5523ad5 https://bugzilla.suse.com/show_bug.cgi?id=1231439
debian https://security-tracker.debian.org/tracker/CVE-2024-47660

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/172e422ffea20a89bfdc672741c1aad6fbb5044e nvd
https://git.kernel.org/stable/c/3f3ef1d9f66b93913ce2171120d9226b55acd41d nvd
https://git.kernel.org/stable/c/7ef1d2e240c32b1f337a37232d037b07e3919e1a nvd
https://git.kernel.org/stable/c/d8c42405fc3507cc43ba7e4986a773c3fc633f6e nvd
https://git.kernel.org/stable/c/f9a48bc3dd9099935751458a5bbbea4b7c28abc8 nvd
https://git.kernel.org/stable/c/fc1b1e135c3f72382f792e6c319fc088d5523ad5 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:fsnotify: clear PARENT_WATCHED flags lazilyIn some setups directories can have many (usually negative) dentries.Hence __fsnotify_update_child_dentry_flags() function can take asignificant amount of time. Since the bulk of this function happensunder inode->i_lock this causes a significant contention on the lockwhen we remove the watch from the directory as the__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()races with __fsnotify_update_child_dentry_flags() calls from__fsnotify_parent() happening on children. This can lead upto softlockupreports reported by users.Fix the problem by calling fsnotify_update_children_dentry_flags() toset PARENT_WATCHED flags only when parent starts watching children.When parent stops watching children, clear false positive PARENT_WATCHEDflags lazily in __fsnotify_parent() for each accessed child.
openEuler评分:
4.7
Vector:CVSS:3.0/AV:L/AC:H/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.master(6.6.0):不受影响
7.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

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):

三、漏洞修复
安全公告链接:https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2371

评论 (17)

openeuler-ci-bot 创建了CVE和安全问题 3个月前
openeuler-ci-bot 添加了
 
CVE/UNFIXED
标签
3个月前
展开全部操作日志

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.

openeuler-ci-bot 添加了
 
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标签
3个月前
参考网址 关联pr 状态 补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2024-47660NoneNonehttps://git.kernel.org/stable/c/172e422ffea20a89bfdc672741c1aad6fbb5044e
https://git.kernel.org/stable/c/f9a48bc3dd9099935751458a5bbbea4b7c28abc8
https://git.kernel.org/stable/c/fc1b1e135c3f72382f792e6c319fc088d5523ad5
https://git.kernel.org/stable/c/d8c42405fc3507cc43ba7e4986a773c3fc633f6e
https://git.kernel.org/stable/c/7ef1d2e240c32b1f337a37232d037b07e3919e1a
https://git.kernel.org/stable/c/3f3ef1d9f66b93913ce2171120d9226b55acd41d
https://ubuntu.com/security/CVE-2024-47660NoneNonehttps://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2024-47660
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-47660
https://security-tracker.debian.org/tracker/CVE-2024-47660

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

openeuler-ci-bot 修改了描述 3个月前
openeuler-ci-bot 修改了描述 3个月前
openeuler-ci-bot 修改了描述 3个月前
openeuler-ci-bot 修改了描述 3个月前
openeuler-ci-bot 修改了描述 3个月前
openeuler-ci-bot 修改了描述 3个月前

CVE-2024-47660

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

fsnotify: clear PARENT_WATCHED flags lazily

In some setups directories can have many (usually negative) dentries.
Hence __fsnotify_update_child_dentry_flags() function can take a
significant amount of time. Since the bulk of this function happens
under inode->i_lock this causes a significant contention on the lock
when we remove the watch from the directory as the
__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()
races with __fsnotify_update_child_dentry_flags() calls from
__fsnotify_parent() happening on children. This can lead upto softlockup
reports reported by users.

Fix the problem by calling fsnotify_update_children_dentry_flags() to
set PARENT_WATCHED flags only when parent starts watching children.

When parent stops watching children, clear false positive PARENT_WATCHED
flags lazily in __fsnotify_parent() for each accessed child.

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

CVE-2024-47660

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

fsnotify: clear PARENT_WATCHED flags lazily

In some setups directories can have many (usually negative) dentries.
Hence __fsnotify_update_child_dentry_flags() function can take a
significant amount of time. Since the bulk of this function happens
under inode->i_lock this causes a significant contention on the lock
when we remove the watch from the directory as the
__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()
races with __fsnotify_update_child_dentry_flags() calls from
__fsnotify_parent() happening on children. This can lead upto softlockup
reports reported by users.

Fix the problem by calling fsnotify_update_children_dentry_flags() to
set PARENT_WATCHED flags only when parent starts watching children.

When parent stops watching children, clear false positive PARENT_WATCHED
flags lazily in __fsnotify_parent() for each accessed child.

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

@ 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:fsnotify: clear PARENT_WATCHED flags lazilyIn some setups directories can have many (usually negative) dentries.Hence __fsnotify_update_child_dentry_flags() function can take asignificant amount of time. Since the bulk of this function happensunder inode->i_lock this causes a significant contention on the lockwhen we remove the watch from the directory as the__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()races with __fsnotify_update_child_dentry_flags() calls from__fsnotify_parent() happening on children. This can lead upto softlockupreports reported by users.Fix the problem by calling fsnotify_update_children_dentry_flags() toset PARENT_WATCHED flags only when parent starts watching children.When parent stops watching children, clear false positive PARENT_WATCHEDflags lazily in __fsnotify_parent() for each accessed child.
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,master: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-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

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.

openeuler-ci-bot 修改了描述 3个月前

CVE-2024-47660

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

fsnotify: clear PARENT_WATCHED flags lazily

In some setups directories can have many (usually negative) dentries.
Hence __fsnotify_update_child_dentry_flags() function can take a
significant amount of time. Since the bulk of this function happens
under inode->i_lock this causes a significant contention on the lock
when we remove the watch from the directory as the
__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()
races with __fsnotify_update_child_dentry_flags() calls from
__fsnotify_parent() happening on children. This can lead upto softlockup
reports reported by users.

Fix the problem by calling fsnotify_update_children_dentry_flags() to
set PARENT_WATCHED flags only when parent starts watching children.

When parent stops watching children, clear false positive PARENT_WATCHED
flags lazily in __fsnotify_parent() for each accessed child.

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

@ 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:fsnotify: clear PARENT_WATCHED flags lazilyIn some setups directories can have many (usually negative) dentries.Hence __fsnotify_update_child_dentry_flags() function can take asignificant amount of time. Since the bulk of this function happensunder inode->i_lock this causes a significant contention on the lockwhen we remove the watch from the directory as the__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()races with __fsnotify_update_child_dentry_flags() calls from__fsnotify_parent() happening on children. This can lead upto softlockupreports reported by users.Fix the problem by calling fsnotify_update_children_dentry_flags() toset PARENT_WATCHED flags only when parent starts watching children.When parent stops watching children, clear false positive PARENT_WATCHEDflags lazily in __fsnotify_parent() for each accessed child.
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,master: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-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

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, 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:fsnotify: clear PARENT_WATCHED flags lazilyIn some setups directories can have many (usually negative) dentries.Hence __fsnotify_update_child_dentry_flags() function can take asignificant amount of time. Since the bulk of this function happensunder inode->i_lock this causes a significant contention on the lockwhen we remove the watch from the directory as the__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()races with __fsnotify_update_child_dentry_flags() calls from__fsnotify_parent() happening on children. This can lead upto softlockupreports reported by users.Fix the problem by calling fsnotify_update_children_dentry_flags() toset PARENT_WATCHED flags only when parent starts watching children.When parent stops watching children, clear false positive PARENT_WATCHEDflags lazily in __fsnotify_parent() for each accessed child.
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,master: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-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

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-2024-47660

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

fsnotify: clear PARENT_WATCHED flags lazily

In some setups directories can have many (usually negative) dentries.
Hence __fsnotify_update_child_dentry_flags() function can take a
significant amount of time. Since the bulk of this function happens
under inode->i_lock this causes a significant contention on the lock
when we remove the watch from the directory as the
__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()
races with __fsnotify_update_child_dentry_flags() calls from
__fsnotify_parent() happening on children. This can lead upto softlockup
reports reported by users.

Fix the problem by calling fsnotify_update_children_dentry_flags() to
set PARENT_WATCHED flags only when parent starts watching children.

When parent stops watching children, clear false positive PARENT_WATCHED
flags lazily in __fsnotify_parent() for each accessed child.

openEuler评分:(评分和向量)
2.5
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

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

openeuler-ci-bot 修改了描述 3个月前

@ 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:fsnotify: clear PARENT_WATCHED flags lazilyIn some setups directories can have many (usually negative) dentries.Hence __fsnotify_update_child_dentry_flags() function can take asignificant amount of time. Since the bulk of this function happensunder inode->i_lock this causes a significant contention on the lockwhen we remove the watch from the directory as the__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()races with __fsnotify_update_child_dentry_flags() calls from__fsnotify_parent() happening on children. This can lead upto softlockupreports reported by users.Fix the problem by calling fsnotify_update_children_dentry_flags() toset PARENT_WATCHED flags only when parent starts watching children.When parent stops watching children, clear false positive PARENT_WATCHEDflags lazily in __fsnotify_parent() for each accessed child.
已分析 2.openEulerScore 2.5
已分析 3.openEulerVector AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
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,master: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-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

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-2024-47660

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

fsnotify: clear PARENT_WATCHED flags lazily

In some setups directories can have many (usually negative) dentries.
Hence __fsnotify_update_child_dentry_flags() function can take a
significant amount of time. Since the bulk of this function happens
under inode->i_lock this causes a significant contention on the lock
when we remove the watch from the directory as the
__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()
races with __fsnotify_update_child_dentry_flags() calls from
__fsnotify_parent() happening on children. This can lead upto softlockup
reports reported by users.

Fix the problem by calling fsnotify_update_children_dentry_flags() to
set PARENT_WATCHED flags only when parent starts watching children.

When parent stops watching children, clear false positive PARENT_WATCHED
flags lazily in __fsnotify_parent() for each accessed child.

openEuler评分:(评分和向量)
2.5
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

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

@ 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:fsnotify: clear PARENT_WATCHED flags lazilyIn some setups directories can have many (usually negative) dentries.Hence __fsnotify_update_child_dentry_flags() function can take asignificant amount of time. Since the bulk of this function happensunder inode->i_lock this causes a significant contention on the lockwhen we remove the watch from the directory as the__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()races with __fsnotify_update_child_dentry_flags() calls from__fsnotify_parent() happening on children. This can lead upto softlockupreports reported by users.Fix the problem by calling fsnotify_update_children_dentry_flags() toset PARENT_WATCHED flags only when parent starts watching children.When parent stops watching children, clear false positive PARENT_WATCHEDflags lazily in __fsnotify_parent() for each accessed child.
已分析 2.openEulerScore 2.5
已分析 3.openEulerVector AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
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,master: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-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

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.

openeuler-ci-bot 修改了描述 3个月前
openeuler-ci-bot 计划开始日期设置为2024-10-14 3个月前
openeuler-ci-bot 计划截止日期设置为2024-11-13 3个月前
openeuler-ci-bot 优先级设置为次要 3个月前

CVE-2024-47660

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

fsnotify: clear PARENT_WATCHED flags lazily

In some setups directories can have many (usually negative) dentries.
Hence __fsnotify_update_child_dentry_flags() function can take a
significant amount of time. Since the bulk of this function happens
under inode->i_lock this causes a significant contention on the lock
when we remove the watch from the directory as the
__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()
races with __fsnotify_update_child_dentry_flags() calls from
__fsnotify_parent() happening on children. This can lead upto softlockup
reports reported by users.

Fix the problem by calling fsnotify_update_children_dentry_flags() to
set PARENT_WATCHED flags only when parent starts watching children.

When parent stops watching children, clear false positive PARENT_WATCHED
flags lazily in __fsnotify_parent() for each accessed child.

openEuler评分:(评分和向量)
4.7
CVSS:3.1/AV:L/AC:H/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

@ 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:fsnotify: clear PARENT_WATCHED flags lazilyIn some setups directories can have many (usually negative) dentries.Hence __fsnotify_update_child_dentry_flags() function can take asignificant amount of time. Since the bulk of this function happensunder inode->i_lock this causes a significant contention on the lockwhen we remove the watch from the directory as the__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()races with __fsnotify_update_child_dentry_flags() calls from__fsnotify_parent() happening on children. This can lead upto softlockupreports reported by users.Fix the problem by calling fsnotify_update_children_dentry_flags() toset PARENT_WATCHED flags only when parent starts watching children.When parent stops watching children, clear false positive PARENT_WATCHEDflags lazily in __fsnotify_parent() for each accessed child.
已分析 2.openEulerScore 4.7
已分析 3.openEulerVector AV:L/AC:H/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,master: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-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

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.

openeuler-ci-bot 修改了描述 3个月前
openeuler-ci-bot 修改了描述 2个月前
ci-robot 通过合并 Pull Request !12911: fsnotify: fix CVE-2024-47660任务状态待办的 修改为已完成 2个月前
openeuler-ci-bot 移除了
 
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openeuler-ci-bot 移除了
 
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openeuler-ci-bot 添加了
 
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sig/Kernel
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2个月前

CVE-2024-47660

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

fsnotify: clear PARENT_WATCHED flags lazily

In some setups directories can have many (usually negative) dentries.
Hence __fsnotify_update_child_dentry_flags() function can take a
significant amount of time. Since the bulk of this function happens
under inode->i_lock this causes a significant contention on the lock
when we remove the watch from the directory as the
__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()
races with __fsnotify_update_child_dentry_flags() calls from
__fsnotify_parent() happening on children. This can lead upto softlockup
reports reported by users.

Fix the problem by calling fsnotify_update_children_dentry_flags() to
set PARENT_WATCHED flags only when parent starts watching children.

When parent stops watching children, clear false positive PARENT_WATCHED
flags lazily in __fsnotify_parent() for each accessed child.

openEuler评分:(评分和向量)
4.7
CVSS:3.1/AV:L/AC:H/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

CVE-2024-47660

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

fsnotify: clear PARENT_WATCHED flags lazily

In some setups directories can have many (usually negative) dentries.
Hence __fsnotify_update_child_dentry_flags() function can take a
significant amount of time. Since the bulk of this function happens
under inode->i_lock this causes a significant contention on the lock
when we remove the watch from the directory as the
__fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask()
races with __fsnotify_update_child_dentry_flags() calls from
__fsnotify_parent() happening on children. This can lead upto softlockup
reports reported by users.

Fix the problem by calling fsnotify_update_children_dentry_flags() to
set PARENT_WATCHED flags only when parent starts watching children.

When parent stops watching children, clear false positive PARENT_WATCHED
flags lazily in __fsnotify_parent() for each accessed child.

openEuler评分:(评分和向量)
4.7
CVSS:3.1/AV:L/AC:H/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

openeuler-ci-bot 修改了描述 2个月前

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