CVE-2022-50211— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于raid10_remove_disk中未验证number值，可能导致越界读取。
影响版本矩阵 20
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | b8321b68d1445f308324517e45fb0a5c2b48e271< 75fbd370a2cec9e92f48285bd90735ed0c837f52 |
affected |
b8321b68d1445f308324517e45fb0a5c2b48e271< bcbdc26a44aba488d2f7122f2d66801bccb74733 |
affected | ||
b8321b68d1445f308324517e45fb0a5c2b48e271< 7a6ccc8fa192fd357c2d5d4c6ce67c834a179e23 |
affected | ||
b8321b68d1445f308324517e45fb0a5c2b48e271< ce839b9331c11780470f3d727b6fe3c2794a4620 |
affected | ||
b8321b68d1445f308324517e45fb0a5c2b48e271< 5fd4ffa2372a41361d2bdd27ea5730e4e673240c |
affected | ||
b8321b68d1445f308324517e45fb0a5c2b48e271< 0f4d18cbea4a6e37a05fd8ee2887439f85211110 |
affected | ||
b8321b68d1445f308324517e45fb0a5c2b48e271< bf30b9ba09b0ac2a10f04dce2b0835ec4d178aa6 |
affected | ||
b8321b68d1445f308324517e45fb0a5c2b48e271< 5f57843565131bb782388f9d993f9ee8f453dee1 |
affected | ||
| … +12 条更多 | |||
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2022-50211 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
md-raid10: fix KASAN warning
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
md-raid10: fix KASAN warning
There's a KASAN warning in raid10_remove_disk when running the lvm
test lvconvert-raid-reshape.sh. We fix this warning by verifying that the
value "number" is valid.
BUG: KASAN: slab-out-of-bounds in raid10_remove_disk+0x61/0x2a0 [raid10]
Read of size 8 at addr ffff889108f3d300 by task mdX_raid10/124682
CPU: 3 PID: 124682 Comm: mdX_raid10 Not tainted 5.19.0-rc6 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0x34/0x44
print_report.cold+0x45/0x57a
? __lock_text_start+0x18/0x18
? raid10_remove_disk+0x61/0x2a0 [raid10]
kasan_report+0xa8/0xe0
? raid10_remove_disk+0x61/0x2a0 [raid10]
raid10_remove_disk+0x61/0x2a0 [raid10]
Buffer I/O error on dev dm-76, logical block 15344, async page read
? __mutex_unlock_slowpath.constprop.0+0x1e0/0x1e0
remove_and_add_spares+0x367/0x8a0 [md_mod]
? super_written+0x1c0/0x1c0 [md_mod]
? mutex_trylock+0xac/0x120
? _raw_spin_lock+0x72/0xc0
? _raw_spin_lock_bh+0xc0/0xc0
md_check_recovery+0x848/0x960 [md_mod]
raid10d+0xcf/0x3360 [raid10]
? sched_clock_cpu+0x185/0x1a0
? rb_erase+0x4d4/0x620
? var_wake_function+0xe0/0xe0
? psi_group_change+0x411/0x500
? preempt_count_sub+0xf/0xc0
? _raw_spin_lock_irqsave+0x78/0xc0
? __lock_text_start+0x18/0x18
? raid10_sync_request+0x36c0/0x36c0 [raid10]
? preempt_count_sub+0xf/0xc0
? _raw_spin_unlock_irqrestore+0x19/0x40
? del_timer_sync+0xa9/0x100
? try_to_del_timer_sync+0xc0/0xc0
? _raw_spin_lock_irqsave+0x78/0xc0
? __lock_text_start+0x18/0x18
? _raw_spin_unlock_irq+0x11/0x24
? __list_del_entry_valid+0x68/0xa0
? finish_wait+0xa3/0x100
md_thread+0x161/0x260 [md_mod]
? unregister_md_personality+0xa0/0xa0 [md_mod]
? _raw_spin_lock_irqsave+0x78/0xc0
? prepare_to_wait_event+0x2c0/0x2c0
? unregister_md_personality+0xa0/0xa0 [md_mod]
kthread+0x148/0x180
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x1f/0x30
</TASK>
Allocated by task 124495:
kasan_save_stack+0x1e/0x40
__kasan_kmalloc+0x80/0xa0
setup_conf+0x140/0x5c0 [raid10]
raid10_run+0x4cd/0x740 [raid10]
md_run+0x6f9/0x1300 [md_mod]
raid_ctr+0x2531/0x4ac0 [dm_raid]
dm_table_add_target+0x2b0/0x620 [dm_mod]
table_load+0x1c8/0x400 [dm_mod]
ctl_ioctl+0x29e/0x560 [dm_mod]
dm_compat_ctl_ioctl+0x7/0x20 [dm_mod]
__do_compat_sys_ioctl+0xfa/0x160
do_syscall_64+0x90/0xc0
entry_SYSCALL_64_after_hwframe+0x46/0xb0
Last potentially related work creation:
kasan_save_stack+0x1e/0x40
__kasan_record_aux_stack+0x9e/0xc0
kvfree_call_rcu+0x84/0x480
timerfd_release+0x82/0x140
L __fput+0xfa/0x400
task_work_run+0x80/0xc0
exit_to_user_mode_prepare+0x155/0x160
syscall_exit_to_user_mode+0x12/0x40
do_syscall_64+0x42/0xc0
entry_SYSCALL_64_after_hwframe+0x46/0xb0
Second to last potentially related work creation:
kasan_save_stack+0x1e/0x40
__kasan_record_aux_stack+0x9e/0xc0
kvfree_call_rcu+0x84/0x480
timerfd_release+0x82/0x140
__fput+0xfa/0x400
task_work_run+0x80/0xc0
exit_to_user_mode_prepare+0x155/0x160
syscall_exit_to_user_mode+0x12/0x40
do_syscall_64+0x42/0xc0
entry_SYSCALL_64_after_hwframe+0x46/0xb0
The buggy address belongs to the object at ffff889108f3d200
which belongs to the cache kmalloc-256 of size 256
The buggy address is located 0 bytes to the right of
256-byte region [ffff889108f3d200, ffff889108f3d300)
The buggy address belongs to the physical page:
page:000000007ef2a34c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1108f3c
head:000000007ef2a34c order:2 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=2)
raw: 4000000000010200 0000000000000000 dead000000000001 ffff889100042b40
raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff889108f3d200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff889108f3d280: 00 00
---truncated---
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于raid10_remove_disk中未验证number值，可能导致越界读取。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2022-50211 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2022-50211 的情报信息
请登录查看更多情报信息。
同批安全公告 · Linux · 2025-06-18 · 共 362 条
| CVE-2025-38075 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2022-50098 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38052 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49934 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50164 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38016 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38074 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49974 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49968 | 8.0 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49944 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49950 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49939 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50028 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49935 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38082 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38080 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38079 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38060 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50101 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38062 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 362 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2022-50211
暂无评论