CVE-2021-46935

一、漏洞信息
漏洞编号：CVE-2021-46935
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
CVSS V3.0分值：
BaseScore：5.5 Medium
Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:binder: fix async_free_space accounting for empty parcelsIn 4.13, commit 74310e06be4d ( android: binder: Move buffer out of area shared with user space )fixed a kernel structure visibility issue. As part of that patch,sizeof(void *) was used as the buffer size for 0-length data payloads sothe driver could detect abusive clients sending 0-length asynchronoustransactions to a server by enforcing limits on async_free_size.Unfortunately, on the free side, the accounting of async_free_spacedid not add the sizeof(void *) back. The result was that up to 8-bytes ofasync_free_space were leaked on every async transaction of 8-bytes orless. These small transactions are uncommon, so this accounting issuehas gone undetected for several years.The fix is to use buffer_size (the allocated buffer size) instead of size (the logical buffer size) when updating the async_free_spaceduring the free operation. These are the same except for thiscorner case of asynchronous transactions with payloads < 8 bytes.
漏洞公开时间：2024-02-27 18:15:07
漏洞创建时间：2024-02-27 19:07:22
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2021-46935

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/103b16a8c51f96d5fe063022869ea906c256e5da
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/17691bada6b2f1d5f1c0f6d28cd9d0727023b0ff
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1cb8444f3114f0bb2f6e3bcadcf09aa4a28425d4
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2d2df539d05205fd83c404d5f2dff48d36f9b495
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7c7064402609aeb6fb11be1b4ec10673ff17b593
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cfd0d84ba28c18b531648c9d4a35ecca89ad9901
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-46935	https://bugzilla.suse.com/show_bug.cgi?id=1220438
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2021-46935	https://bugzilla.suse.com/show_bug.cgi?id=1220438
suse_bugzilla	https://git.kernel.org/stable/c/103b16a8c51f96d5fe063022869ea906c256e5da	https://bugzilla.suse.com/show_bug.cgi?id=1220438
suse_bugzilla	https://git.kernel.org/stable/c/17691bada6b2f1d5f1c0f6d28cd9d0727023b0ff	https://bugzilla.suse.com/show_bug.cgi?id=1220438
suse_bugzilla	https://git.kernel.org/stable/c/1cb8444f3114f0bb2f6e3bcadcf09aa4a28425d4	https://bugzilla.suse.com/show_bug.cgi?id=1220438
suse_bugzilla	https://git.kernel.org/stable/c/2d2df539d05205fd83c404d5f2dff48d36f9b495	https://bugzilla.suse.com/show_bug.cgi?id=1220438
suse_bugzilla	https://git.kernel.org/stable/c/7c7064402609aeb6fb11be1b4ec10673ff17b593	https://bugzilla.suse.com/show_bug.cgi?id=1220438
suse_bugzilla	https://git.kernel.org/stable/c/cfd0d84ba28c18b531648c9d4a35ecca89ad9901	https://bugzilla.suse.com/show_bug.cgi?id=1220438
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024022751-CVE-2021-46935-f8f4@gregkh/T/#u	https://bugzilla.redhat.com/show_bug.cgi?id=2266436
ubuntu	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46935	https://ubuntu.com/security/CVE-2021-46935
ubuntu	https://git.kernel.org/linus/cfd0d84ba28c18b531648c9d4a35ecca89ad9901 (5.16-rc8)	https://ubuntu.com/security/CVE-2021-46935
ubuntu	https://git.kernel.org/stable/c/2d2df539d05205fd83c404d5f2dff48d36f9b495	https://ubuntu.com/security/CVE-2021-46935
ubuntu	https://git.kernel.org/stable/c/7c7064402609aeb6fb11be1b4ec10673ff17b593	https://ubuntu.com/security/CVE-2021-46935
ubuntu	https://git.kernel.org/stable/c/103b16a8c51f96d5fe063022869ea906c256e5da	https://ubuntu.com/security/CVE-2021-46935
ubuntu	https://git.kernel.org/stable/c/1cb8444f3114f0bb2f6e3bcadcf09aa4a28425d4	https://ubuntu.com/security/CVE-2021-46935
ubuntu	https://git.kernel.org/stable/c/17691bada6b2f1d5f1c0f6d28cd9d0727023b0ff	https://ubuntu.com/security/CVE-2021-46935
ubuntu	https://git.kernel.org/stable/c/cfd0d84ba28c18b531648c9d4a35ecca89ad9901	https://ubuntu.com/security/CVE-2021-46935
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2021-46935	https://ubuntu.com/security/CVE-2021-46935
ubuntu	https://launchpad.net/bugs/cve/CVE-2021-46935	https://ubuntu.com/security/CVE-2021-46935
ubuntu	https://security-tracker.debian.org/tracker/CVE-2021-46935	https://ubuntu.com/security/CVE-2021-46935
cve_search		https://git.kernel.org/stable/c/2d2df539d05205fd83c404d5f2dff48d36f9b495
cve_search		https://git.kernel.org/stable/c/7c7064402609aeb6fb11be1b4ec10673ff17b593
cve_search		https://git.kernel.org/stable/c/103b16a8c51f96d5fe063022869ea906c256e5da
cve_search		https://git.kernel.org/stable/c/1cb8444f3114f0bb2f6e3bcadcf09aa4a28425d4
cve_search		https://git.kernel.org/stable/c/17691bada6b2f1d5f1c0f6d28cd9d0727023b0ff
cve_search		https://git.kernel.org/stable/c/cfd0d84ba28c18b531648c9d4a35ecca89ad9901
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/103b16a8c51f96d5fe063022869ea906c256e5da
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/17691bada6b2f1d5f1c0f6d28cd9d0727023b0ff
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1cb8444f3114f0bb2f6e3bcadcf09aa4a28425d4
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2d2df539d05205fd83c404d5f2dff48d36f9b495
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7c7064402609aeb6fb11be1b4ec10673ff17b593
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cfd0d84ba28c18b531648c9d4a35ecca89ad9901

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	修复补丁	问题引入补丁	来源
	https://git.kernel.org/stable/c/103b16a8c51f96d5fe063022869ea906c256e5da		nvd
	https://git.kernel.org/stable/c/17691bada6b2f1d5f1c0f6d28cd9d0727023b0ff		nvd
	https://git.kernel.org/stable/c/1cb8444f3114f0bb2f6e3bcadcf09aa4a28425d4		nvd
	https://git.kernel.org/stable/c/2d2df539d05205fd83c404d5f2dff48d36f9b495		nvd
	https://git.kernel.org/stable/c/7c7064402609aeb6fb11be1b4ec10673ff17b593		nvd
	https://git.kernel.org/stable/c/cfd0d84ba28c18b531648c9d4a35ecca89ad9901		nvd
linux	https://git.kernel.org/linus/cfd0d84ba28c18b531648c9d4a35ecca89ad9901	https://git.kernel.org/linus/74310e06be4d74dcf67cd108366710dee5c576d5	ubuntu
linux-hwe	https://git.kernel.org/linus/cfd0d84ba28c18b531648c9d4a35ecca89ad9901	https://git.kernel.org/linus/74310e06be4d74dcf67cd108366710dee5c576d5	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:binder: fix async_free_space accounting for empty parcelsIn 4.13, commit 74310e06be4d ( android: binder: Move buffer out of area shared with user space )fixed a kernel structure visibility issue. As part of that patch,sizeof(void *) was used as the buffer size for 0-length data payloads sothe driver could detect abusive clients sending 0-length asynchronoustransactions to a server by enforcing limits on async_free_size.Unfortunately, on the free side, the accounting of async_free_spacedid not add the sizeof(void *) back. The result was that up to 8-bytes ofasync_free_space were leaked on every async transaction of 8-bytes orless. These small transactions are uncommon, so this accounting issuehas gone undetected for several years.The fix is to use buffer_size (the allocated buffer size) instead of size (the logical buffer size) when updating the async_free_spaceduring the free operation. These are the same except for thiscorner case of asynchronous transactions with payloads < 8 bytes.
openEuler评分：
4.4
Vector：CVSS：2.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
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(4.19.90):受影响
3.openEuler-22.03-LTS(5.10.0):不受影响
4.openEuler-22.03-LTS-SP1(5.10.0):不受影响
5.openEuler-22.03-LTS-SP2(5.10.0):不受影响
6.openEuler-22.03-LTS-SP3(5.10.0):不受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next(5.10.0):不受影响
9.openEuler-24.03-LTS:不受影响
10.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(4.19.90):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(5.10.0):否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next(5.10.0):否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1393

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 ,@成坚 (CHENG Jian) ,@jiaoff ,@AlexGuo ,@hanjun-guo ,@woqidaideshi ,@Jackie Liu ,@Zhang Yi ,@colyli ,@ThunderTown ,@htforge ,@Chiqijun ,@冷嘲啊 ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@Kefeng ,@SuperSix173 ,@WangShaoBo ,@Zheng Zucheng
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):

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):

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-2021-46935	None	None	https://git.kernel.org/stable/c/7c7064402609aeb6fb11be1b4ec10673ff17b593 https://git.kernel.org/stable/c/cfd0d84ba28c18b531648c9d4a35ecca89ad9901 https://git.kernel.org/stable/c/17691bada6b2f1d5f1c0f6d28cd9d0727023b0ff https://git.kernel.org/stable/c/2d2df539d05205fd83c404d5f2dff48d36f9b495 https://git.kernel.org/stable/c/103b16a8c51f96d5fe063022869ea906c256e5da https://git.kernel.org/stable/c/1cb8444f3114f0bb2f6e3bcadcf09aa4a28425d4
https://ubuntu.com/security/CVE-2021-46935	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2021-46935	None	None	https://git.kernel.org/stable/c/7c7064402609aeb6fb11be1b4ec10673ff17b593 https://git.kernel.org/stable/c/cfd0d84ba28c18b531648c9d4a35ecca89ad9901 https://git.kernel.org/stable/c/17691bada6b2f1d5f1c0f6d28cd9d0727023b0ff https://git.kernel.org/stable/c/2d2df539d05205fd83c404d5f2dff48d36f9b495 https://git.kernel.org/stable/c/103b16a8c51f96d5fe063022869ea906c256e5da https://git.kernel.org/stable/c/1cb8444f3114f0bb2f6e3bcadcf09aa4a28425d4
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-46935
https://security-tracker.debian.org/tracker/CVE-2021-46935

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 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.

@zhangchangzhong 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 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.

@hongrongxuan 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 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.

CVE-2021-46935

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

binder: fix async_free_space accounting for empty parcels

In 4.13, commit 74310e06be4d ("android: binder: Move buffer out of area shared with user space")
fixed a kernel structure visibility issue. As part of that patch,
sizeof(void *) was used as the buffer size for 0-length data payloads so
the driver could detect abusive clients sending 0-length asynchronous
transactions to a server by enforcing limits on async_free_size.

Unfortunately, on the "free" side, the accounting of async_free_space
did not add the sizeof(void *) back. The result was that up to 8-bytes of
async_free_space were leaked on every async transaction of 8-bytes or
less. These small transactions are uncommon, so this accounting issue
has gone undetected for several years.

The fix is to use "buffer_size" (the allocated buffer size) instead of
"size" (the logical buffer size) when updating the async_free_space
during the free operation. These are the same except for this
corner case of asynchronous transactions with payloads < 8 bytes.

openEuler评分:(评分和向量)
4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

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: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.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:受影响
9.openEuler-24.03-LTS: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

@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: #I947U7:CVE-2021-46935
受影响分支: openEuler-22.03-LTS-SP3/openEuler-22.03-LTS/openEuler-22.03-LTS-Next/openEuler-22.03-LTS-SP1/openEuler-22.03-LTS-SP2
具体操作参考: https://gitee.com/help/articles/4142

CVE-2021-46935

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

binder: fix async_free_space accounting for empty parcels

In 4.13, commit 74310e06be4d ("android: binder: Move buffer out of area shared with user space")
fixed a kernel structure visibility issue. As part of that patch,
sizeof(void *) was used as the buffer size for 0-length data payloads so
the driver could detect abusive clients sending 0-length asynchronous
transactions to a server by enforcing limits on async_free_size.

Unfortunately, on the "free" side, the accounting of async_free_space
did not add the sizeof(void *) back. The result was that up to 8-bytes of
async_free_space were leaked on every async transaction of 8-bytes or
less. These small transactions are uncommon, so this accounting issue
has gone undetected for several years.

The fix is to use "buffer_size" (the allocated buffer size) instead of
"size" (the logical buffer size) when updating the async_free_space
during the free operation. These are the same except for this
corner case of asynchronous transactions with payloads < 8 bytes.

openEuler评分:(评分和向量)
4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

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.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:不受影响
9.openEuler-24.03-LTS:不受影响
10.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

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

@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: #I947U7:CVE-2021-46935
受影响分支: openEuler-22.03-LTS/openEuler-22.03-LTS-SP1/openEuler-22.03-LTS-SP2/openEuler-22.03-LTS-SP3
具体操作参考: https://gitee.com/help/articles/4142

CVE-2021-46935

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

binder: fix async_free_space accounting for empty parcels

In 4.13, commit 74310e06be4d ("android: binder: Move buffer out of area shared with user space")
fixed a kernel structure visibility issue. As part of that patch,
sizeof(void *) was used as the buffer size for 0-length data payloads so
the driver could detect abusive clients sending 0-length asynchronous
transactions to a server by enforcing limits on async_free_size.

Unfortunately, on the "free" side, the accounting of async_free_space
did not add the sizeof(void *) back. The result was that up to 8-bytes of
async_free_space were leaked on every async transaction of 8-bytes or
less. These small transactions are uncommon, so this accounting issue
has gone undetected for several years.

The fix is to use "buffer_size" (the allocated buffer size) instead of
"size" (the logical buffer size) when updating the async_free_space
during the free operation. These are the same except for this
corner case of asynchronous transactions with payloads < 8 bytes.

openEuler评分:(评分和向量)
4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

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:不受影响
4.openEuler-22.03-LTS-SP1:不受影响
5.openEuler-22.03-LTS-SP2:不受影响
6.openEuler-22.03-LTS-SP3:不受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:不受影响
9.openEuler-24.03-LTS:不受影响
10.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

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

src-openEuler / kernel

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内容风险标识

CVE-2021-46935

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