CVE-2024-26875

一、漏洞信息
漏洞编号：CVE-2024-26875
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 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:media: pvrusb2: fix uaf in pvr2_context_set_notify[Syzbot reported]BUG: KASAN: slab-use-after-free in pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35Read of size 4 at addr ffff888113aeb0d8 by task kworker/1:1/26CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.8.0-rc1-syzkaller-00046-gf1a27f081c1f #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024Workqueue: usb_hub_wq hub_eventCall Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc4/0x620 mm/kasan/report.c:488 kasan_report+0xda/0x110 mm/kasan/report.c:601 pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35 pvr2_context_notify drivers/media/usb/pvrusb2/pvrusb2-context.c:95 [inline] pvr2_context_disconnect+0x94/0xb0 drivers/media/usb/pvrusb2/pvrusb2-context.c:272Freed by task 906:kasan_save_stack+0x33/0x50 mm/kasan/common.c:47kasan_save_track+0x14/0x30 mm/kasan/common.c:68kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640poison_slab_object mm/kasan/common.c:241 [inline]__kasan_slab_free+0x106/0x1b0 mm/kasan/common.c:257kasan_slab_free include/linux/kasan.h:184 [inline]slab_free_hook mm/slub.c:2121 [inline]slab_free mm/slub.c:4299 [inline]kfree+0x105/0x340 mm/slub.c:4409pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline]pvr2_context_thread_func+0x69d/0x960 drivers/media/usb/pvrusb2/pvrusb2-context.c:158[Analyze]Task A set disconnect_flag = !0, which resulted in Task B s condition being metand releasing mp, leading to this issue.[Fix]Place the disconnect_flag assignment operation after all code in pvr2_context_disconnect()to avoid this issue.
漏洞公开时间：2024-04-17 19:15:09
漏洞创建时间：2024-04-17 20:36:13
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2024-26875

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/0a0b79ea55de8514e1750884e5fec77f9fdd01ee
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-26875	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2024-26875	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://git.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01ee	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-26875.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1223118
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2275701	https://bugzilla.suse.com/show_bug.cgi?id=1223118
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024041739-CVE-2024-26875-8394@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2275701
ubuntu	https://www.cve.org/CVERecord?id=CVE-2024-26875	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://git.kernel.org/linus/0a0b79ea55de8514e1750884e5fec77f9fdd01ee (6.9-rc1)	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://git.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01ee	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2024-26875	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://launchpad.net/bugs/cve/CVE-2024-26875	https://ubuntu.com/security/CVE-2024-26875
ubuntu	https://security-tracker.debian.org/tracker/CVE-2024-26875	https://ubuntu.com/security/CVE-2024-26875
debian		https://security-tracker.debian.org/tracker/CVE-2024-26875

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/0a0b79ea55de8514e1750884e5fec77f9fdd01ee	https://git.kernel.org/linus/e5be15c63804e05b5a94197524023702a259e308	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:media: pvrusb2: fix uaf in pvr2_context_set_notify[Syzbot reported]BUG: KASAN: slab-use-after-free in pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35Read of size 4 at addr ffff888113aeb0d8 by task kworker/1:1/26CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.8.0-rc1-syzkaller-00046-gf1a27f081c1f #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024Workqueue: usb_hub_wq hub_eventCall Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc4/0x620 mm/kasan/report.c:488 kasan_report+0xda/0x110 mm/kasan/report.c:601 pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35 pvr2_context_notify drivers/media/usb/pvrusb2/pvrusb2-context.c:95 [inline] pvr2_context_disconnect+0x94/0xb0 drivers/media/usb/pvrusb2/pvrusb2-context.c:272Freed by task 906:kasan_save_stack+0x33/0x50 mm/kasan/common.c:47kasan_save_track+0x14/0x30 mm/kasan/common.c:68kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640poison_slab_object mm/kasan/common.c:241 [inline]__kasan_slab_free+0x106/0x1b0 mm/kasan/common.c:257kasan_slab_free include/linux/kasan.h:184 [inline]slab_free_hook mm/slub.c:2121 [inline]slab_free mm/slub.c:4299 [inline]kfree+0x105/0x340 mm/slub.c:4409pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline]pvr2_context_thread_func+0x69d/0x960 drivers/media/usb/pvrusb2/pvrusb2-context.c:158[Analyze]Task A set disconnect_flag = !0, which resulted in Task B s condition being metand releasing mp, leading to this issue.[Fix]Place the disconnect_flag assignment operation after all code in pvr2_context_disconnect()to avoid this issue.
openEuler评分：
6.4
Vector：CVSS：2.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/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(4.19.90):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(5.10.0):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-2024-1622

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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-2024-26875	None	None	https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592 https://git.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01ee https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7 https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16 https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475 https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a
https://ubuntu.com/security/CVE-2024-26875	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2024-26875	None	None	https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592 https://git.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01ee https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7 https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16 https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475 https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-26875
https://security-tracker.debian.org/tracker/CVE-2024-26875

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.

@openeuler-sync-bot 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.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@仉鹏请确认分支: 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.

@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,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.

@chenyi 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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CVE-2024-26875

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

media: pvrusb2: fix uaf in pvr2_context_set_notify

[Syzbot reported]
BUG: KASAN: slab-use-after-free in pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35
Read of size 4 at addr ffff888113aeb0d8 by task kworker/1:1/26

CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.8.0-rc1-syzkaller-00046-gf1a27f081c1f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: usb_hub_wq hub_event
Call Trace:

__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:488
kasan_report+0xda/0x110 mm/kasan/report.c:601
pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35
pvr2_context_notify drivers/media/usb/pvrusb2/pvrusb2-context.c:95 [inline]
pvr2_context_disconnect+0x94/0xb0 drivers/media/usb/pvrusb2/pvrusb2-context.c:272

Freed by task 906:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640
poison_slab_object mm/kasan/common.c:241 [inline]
__kasan_slab_free+0x106/0x1b0 mm/kasan/common.c:257
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2121 [inline]
slab_free mm/slub.c:4299 [inline]
kfree+0x105/0x340 mm/slub.c:4409
pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline]
pvr2_context_thread_func+0x69d/0x960 drivers/media/usb/pvrusb2/pvrusb2-context.c:158

[Analyze]
Task A set disconnect_flag = !0, which resulted in Task B's condition being met
and releasing mp, leading to this issue.

[Fix]
Place the disconnect_flag assignment operation after all code in pvr2_context_disconnect()
to avoid this issue.

openEuler评分:(评分和向量)
6.4
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/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.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

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

@ 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:media: pvrusb2: fix uaf in pvr2_context_set_notify[Syzbot reported]BUG: KASAN: slab-use-after-free in pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35Read of size 4 at addr ffff888113aeb0d8 by task kworker/1:1/26CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.8.0-rc1-syzkaller-00046-gf1a27f081c1f #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024Workqueue: usb_hub_wq hub_eventCall Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc4/0x620 mm/kasan/report.c:488 kasan_report+0xda/0x110 mm/kasan/report.c:601 pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35 pvr2_context_notify drivers/media/usb/pvrusb2/pvrusb2-context.c:95 [inline] pvr2_context_disconnect+0x94/0xb0 drivers/media/usb/pvrusb2/pvrusb2-context.c:272Freed by task 906:kasan_save_stack+0x33/0x50 mm/kasan/common.c:47kasan_save_track+0x14/0x30 mm/kasan/common.c:68kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640poison_slab_object mm/kasan/common.c:241 [inline]__kasan_slab_free+0x106/0x1b0 mm/kasan/common.c:257kasan_slab_free include/linux/kasan.h:184 [inline]slab_free_hook mm/slub.c:2121 [inline]slab_free mm/slub.c:4299 [inline]kfree+0x105/0x340 mm/slub.c:4409pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline]pvr2_context_thread_func+0x69d/0x960 drivers/media/usb/pvrusb2/pvrusb2-context.c:158[Analyze]Task A set disconnect_flag = !0, which resulted in Task B's condition being metand releasing mp, leading to this issue.[Fix]Place the disconnect_flag assignment operation after all code in pvr2_context_disconnect()to avoid this issue.
已分析	2.openEulerScore	6.4
已分析	3.openEulerVector	AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/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,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

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.

src-openEuler / kernel

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CVE-2024-26875

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