CVE-2023-52707

一、漏洞信息
 漏洞编号：[CVE-2023-52707](https://nvd.nist.gov/vuln/detail/CVE-2023-52707)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/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：0.0 None
  Vector：CVSS：3.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:sched/psi: Fix use-after-free in ep_remove_wait_queue()If a non-root cgroup gets removed when there is a thread that registeredtrigger and is polling on a pressure file within the cgroup, the pollingwaitqueue gets freed in the following path: do_rmdir   cgroup_rmdir     kernfs_drain_open_files       cgroup_file_release         cgroup_pressure_release           psi_trigger_destroyHowever, the polling thread still has a reference to the pressure file andwill access the freed waitqueue when the file is closed or upon exit: fput   ep_eventpoll_release     ep_free       ep_remove_wait_queue         remove_wait_queueThis results in use-after-free as pasted below.The fundamental problem here is that cgroup_file_release() (andconsequently waitqueue s lifetime) is not tied to the file s real lifetime.Using wake_up_pollfree() here might be less than ideal, but it is in linewith the comment at commit 42288cb44c4b ( wait: add wake_up_pollfree() )since the waitqueue s lifetime is not tied to file s one and can beconsidered as another special case. While this would be fixable by somehowmaking cgroup_file_release() be tied to the fput(), it would requiresizable refactoring at cgroups or higher layer which might be morejustifiable if we identify more cases like this.  BUG: KASAN: use-after-free in _raw_spin_lock_irqsave+0x60/0xc0  Write of size 4 at addr ffff88810e625328 by task a.out/4404	CPU: 19 PID: 4404 Comm: a.out Not tainted 6.2.0-rc6 #38	Hardware name: Amazon EC2 c5a.8xlarge/, BIOS 1.0 10/16/2017	Call Trace:	<TASK>	dump_stack_lvl+0x73/0xa0	print_report+0x16c/0x4e0	kasan_report+0xc3/0xf0	kasan_check_range+0x2d2/0x310	_raw_spin_lock_irqsave+0x60/0xc0	remove_wait_queue+0x1a/0xa0	ep_free+0x12c/0x170	ep_eventpoll_release+0x26/0x30	__fput+0x202/0x400	task_work_run+0x11d/0x170	do_exit+0x495/0x1130	do_group_exit+0x100/0x100	get_signal+0xd67/0xde0	arch_do_signal_or_restart+0x2a/0x2b0	exit_to_user_mode_prepare+0x94/0x100	syscall_exit_to_user_mode+0x20/0x40	do_syscall_64+0x52/0x90	entry_SYSCALL_64_after_hwframe+0x63/0xcd	</TASK> Allocated by task 4404:	kasan_set_track+0x3d/0x60	__kasan_kmalloc+0x85/0x90	psi_trigger_create+0x113/0x3e0	pressure_write+0x146/0x2e0	cgroup_file_write+0x11c/0x250	kernfs_fop_write_iter+0x186/0x220	vfs_write+0x3d8/0x5c0	ksys_write+0x90/0x110	do_syscall_64+0x43/0x90	entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 4407:	kasan_set_track+0x3d/0x60	kasan_save_free_info+0x27/0x40	____kasan_slab_free+0x11d/0x170	slab_free_freelist_hook+0x87/0x150	__kmem_cache_free+0xcb/0x180	psi_trigger_destroy+0x2e8/0x310	cgroup_file_release+0x4f/0xb0	kernfs_drain_open_files+0x165/0x1f0	kernfs_drain+0x162/0x1a0	__kernfs_remove+0x1fb/0x310	kernfs_remove_by_name_ns+0x95/0xe0	cgroup_addrm_files+0x67f/0x700	cgroup_destroy_locked+0x283/0x3c0	cgroup_rmdir+0x29/0x100	kernfs_iop_rmdir+0xd1/0x140	vfs_rmdir+0xfe/0x240	do_rmdir+0x13d/0x280	__x64_sys_rmdir+0x2c/0x30	do_syscall_64+0x43/0x90	entry_SYSCALL_64_after_hwframe+0x63/0xcd
 漏洞公开时间：2024-05-22 00:15:12
 漏洞创建时间：2024-05-21 19:05:49
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2023-52707
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/7caeb5457bd01ccba0df1d6f4872f20d28e50b38 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/c2dbe32d5db5c4ead121cf86dabd5ab691fb47fe |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/c6879a4dcefe92d870ab68cabaa9caeda4f2af5a |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/cca2b3feb70170ef6f0fbc4b4d91eea235a2b73a |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/ec9c7aa08819f976b2492fa63c41b5712d2924b5 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52707 | https://bugzilla.suse.com/show_bug.cgi?id=1225109 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2023/CVE-2023-52707.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1225109 |
| suse_bugzilla | https://git.kernel.org/stable/c/7caeb5457bd01ccba0df1d6f4872f20d28e50b38 | https://bugzilla.suse.com/show_bug.cgi?id=1225109 |
| suse_bugzilla | https://git.kernel.org/stable/c/ec9c7aa08819f976b2492fa63c41b5712d2924b5 | https://bugzilla.suse.com/show_bug.cgi?id=1225109 |
| suse_bugzilla | https://git.kernel.org/stable/c/cca2b3feb70170ef6f0fbc4b4d91eea235a2b73a | https://bugzilla.suse.com/show_bug.cgi?id=1225109 |
| suse_bugzilla | https://git.kernel.org/stable/c/c6879a4dcefe92d870ab68cabaa9caeda4f2af5a | https://bugzilla.suse.com/show_bug.cgi?id=1225109 |
| suse_bugzilla | https://git.kernel.org/stable/c/c2dbe32d5db5c4ead121cf86dabd5ab691fb47fe | https://bugzilla.suse.com/show_bug.cgi?id=1225109 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2023-52707 | https://bugzilla.suse.com/show_bug.cgi?id=1225109 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2282615 | https://bugzilla.suse.com/show_bug.cgi?id=1225109 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024052158-CVE-2023-52707-e048@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2282615 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:4823 | https://bugzilla.redhat.com/show_bug.cgi?id=2282615 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:4831 | https://bugzilla.redhat.com/show_bug.cgi?id=2282615 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:5102 | https://bugzilla.redhat.com/show_bug.cgi?id=2282615 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:5101 | https://bugzilla.redhat.com/show_bug.cgi?id=2282615 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2023-52707 | https://ubuntu.com/security/CVE-2023-52707 |
| ubuntu | https://git.kernel.org/linus/c2dbe32d5db5c4ead121cf86dabd5ab691fb47fe (6.2) | https://ubuntu.com/security/CVE-2023-52707 |
| ubuntu | https://git.kernel.org/stable/c/7caeb5457bd01ccba0df1d6f4872f20d28e50b38 | https://ubuntu.com/security/CVE-2023-52707 |
| ubuntu | https://git.kernel.org/stable/c/ec9c7aa08819f976b2492fa63c41b5712d2924b5 | https://ubuntu.com/security/CVE-2023-52707 |
| ubuntu | https://git.kernel.org/stable/c/cca2b3feb70170ef6f0fbc4b4d91eea235a2b73a | https://ubuntu.com/security/CVE-2023-52707 |
| ubuntu | https://git.kernel.org/stable/c/c6879a4dcefe92d870ab68cabaa9caeda4f2af5a | https://ubuntu.com/security/CVE-2023-52707 |
| ubuntu | https://git.kernel.org/stable/c/c2dbe32d5db5c4ead121cf86dabd5ab691fb47fe | https://ubuntu.com/security/CVE-2023-52707 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2023-52707 | https://ubuntu.com/security/CVE-2023-52707 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2023-52707 | https://ubuntu.com/security/CVE-2023-52707 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2023-52707 | https://ubuntu.com/security/CVE-2023-52707 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2023-52707 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2023-52707 |

</details>

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：
  <details>
<summary>详情(点击展开)</summary>

| 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/c2dbe32d5db5c4ead121cf86dabd5ab691fb47fe | https://git.kernel.org/linus/0e94682b73bfa6c44c98af7a26771c9c08c055d5 | ubuntu |

</details>

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:sched/psi: Fix use-after-free in ep_remove_wait_queue()If a non-root cgroup gets removed when there is a thread that registeredtrigger and is polling on a pressure file within the cgroup, the pollingwaitqueue gets freed in the following path: do_rmdir   cgroup_rmdir     kernfs_drain_open_files       cgroup_file_release         cgroup_pressure_release           psi_trigger_destroyHowever, the polling thread still has a reference to the pressure file andwill access the freed waitqueue when the file is closed or upon exit: fput   ep_eventpoll_release     ep_free       ep_remove_wait_queue         remove_wait_queueThis results in use-after-free as pasted below.The fundamental problem here is that cgroup_file_release() (andconsequently waitqueue s lifetime) is not tied to the file s real lifetime.Using wake_up_pollfree() here might be less than ideal, but it is in linewith the comment at commit 42288cb44c4b ( wait: add wake_up_pollfree() )since the waitqueue s lifetime is not tied to file s one and can beconsidered as another special case. While this would be fixable by somehowmaking cgroup_file_release() be tied to the fput(), it would requiresizable refactoring at cgroups or higher layer which might be morejustifiable if we identify more cases like this.  BUG: KASAN: use-after-free in _raw_spin_lock_irqsave+0x60/0xc0  Write of size 4 at addr ffff88810e625328 by task a.out/4404CPU: 19 PID: 4404 Comm: a.out Not tainted 6.2.0-rc6 #38Hardware name: Amazon EC2 c5a.8xlarge/, BIOS 1.0 10/16/2017Call Trace:<TASK>dump_stack_lvl+0x73/0xa0print_report+0x16c/0x4e0kasan_report+0xc3/0xf0kasan_check_range+0x2d2/0x310_raw_spin_lock_irqsave+0x60/0xc0remove_wait_queue+0x1a/0xa0ep_free+0x12c/0x170ep_eventpoll_release+0x26/0x30__fput+0x202/0x400task_work_run+0x11d/0x170do_exit+0x495/0x1130do_group_exit+0x100/0x100get_signal+0xd67/0xde0arch_do_signal_or_restart+0x2a/0x2b0exit_to_user_mode_prepare+0x94/0x100syscall_exit_to_user_mode+0x20/0x40do_syscall_64+0x52/0x90entry_SYSCALL_64_after_hwframe+0x63/0xcd</TASK> Allocated by task 4404:kasan_set_track+0x3d/0x60__kasan_kmalloc+0x85/0x90psi_trigger_create+0x113/0x3e0pressure_write+0x146/0x2e0cgroup_file_write+0x11c/0x250kernfs_fop_write_iter+0x186/0x220vfs_write+0x3d8/0x5c0ksys_write+0x90/0x110do_syscall_64+0x43/0x90entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 4407:kasan_set_track+0x3d/0x60kasan_save_free_info+0x27/0x40____kasan_slab_free+0x11d/0x170slab_free_freelist_hook+0x87/0x150__kmem_cache_free+0xcb/0x180psi_trigger_destroy+0x2e8/0x310cgroup_file_release+0x4f/0xb0kernfs_drain_open_files+0x165/0x1f0kernfs_drain+0x162/0x1a0__kernfs_remove+0x1fb/0x310kernfs_remove_by_name_ns+0x95/0xe0cgroup_addrm_files+0x67f/0x700cgroup_destroy_locked+0x283/0x3c0cgroup_rmdir+0x29/0x100kernfs_iop_rmdir+0xd1/0x140vfs_rmdir+0xfe/0x240do_rmdir+0x13d/0x280__x64_sys_rmdir+0x2c/0x30do_syscall_64+0x43/0x90entry_SYSCALL_64_after_hwframe+0x63/0xcd 
 openEuler评分：
  7.8
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/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-22.03-LTS-SP1(5.10.0):受影响
2.openEuler-20.03-LTS-SP4(4.19.90):不受影响
3.openEuler-22.03-LTS-SP3(5.10.0):不受影响
4.openEuler-22.03-LTS-SP4(5.10.0):不受影响
5.master(6.6.0):不受影响
6.openEuler-24.03-LTS(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

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2257

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