CVE-2022-50560— 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，该漏洞源于未调用component_master_del函数，可能导致释放后重用。
可能的 ATT&CK 技术 1 AI
T1211 · Exploitation for Stealth影响版本矩阵 12
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | a41e82e6c4575b6c0a48bcc25a3feae4b2910934< 8a427a22839daacd36531a62c83d5c9cd6f20657 |
affected |
a41e82e6c4575b6c0a48bcc25a3feae4b2910934< 587c7da877219e6185217bf64418e62e114dab1e |
affected | ||
a41e82e6c4575b6c0a48bcc25a3feae4b2910934< f11aa996fc01888f870be0e79ba71526888c0d8a |
affected | ||
a41e82e6c4575b6c0a48bcc25a3feae4b2910934< 6ef20de2fe0ee1decedbfabb17782897ca27bfe5 |
affected | ||
a41e82e6c4575b6c0a48bcc25a3feae4b2910934< 8616f2a0589a80e08434212324250eb22f6a66ce |
affected | ||
4.12 |
affected | ||
< 4.12 |
unaffected | ||
5.10.150≤ 5.10.* |
unaffected | ||
| … +4 条更多 | |||
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一、 漏洞 CVE-2022-50560 基础信息
漏洞信息
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Vulnerability Title
drm/meson: explicitly remove aggregate driver at module unload time
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
drm/meson: explicitly remove aggregate driver at module unload time
Because component_master_del wasn't being called when unloading the
meson_drm module, the aggregate device would linger forever in the global
aggregate_devices list. That means when unloading and reloading the
meson_dw_hdmi module, component_add would call into
try_to_bring_up_aggregate_device and find the unbound meson_drm aggregate
device.
This would in turn dereference some of the aggregate_device's struct
entries which point to memory automatically freed by the devres API when
unbinding the aggregate device from meson_drv_unbind, and trigger an
use-after-free bug:
[ +0.000014] =============================================================
[ +0.000007] BUG: KASAN: use-after-free in find_components+0x468/0x500
[ +0.000017] Read of size 8 at addr ffff000006731688 by task modprobe/2536
[ +0.000018] CPU: 4 PID: 2536 Comm: modprobe Tainted: G C O 5.19.0-rc6-lrmbkasan+ #1
[ +0.000010] Hardware name: Hardkernel ODROID-N2Plus (DT)
[ +0.000008] Call trace:
[ +0.000005] dump_backtrace+0x1ec/0x280
[ +0.000011] show_stack+0x24/0x80
[ +0.000007] dump_stack_lvl+0x98/0xd4
[ +0.000010] print_address_description.constprop.0+0x80/0x520
[ +0.000011] print_report+0x128/0x260
[ +0.000007] kasan_report+0xb8/0xfc
[ +0.000007] __asan_report_load8_noabort+0x3c/0x50
[ +0.000009] find_components+0x468/0x500
[ +0.000008] try_to_bring_up_aggregate_device+0x64/0x390
[ +0.000009] __component_add+0x1dc/0x49c
[ +0.000009] component_add+0x20/0x30
[ +0.000008] meson_dw_hdmi_probe+0x28/0x34 [meson_dw_hdmi]
[ +0.000013] platform_probe+0xd0/0x220
[ +0.000008] really_probe+0x3ac/0xa80
[ +0.000008] __driver_probe_device+0x1f8/0x400
[ +0.000008] driver_probe_device+0x68/0x1b0
[ +0.000008] __driver_attach+0x20c/0x480
[ +0.000009] bus_for_each_dev+0x114/0x1b0
[ +0.000007] driver_attach+0x48/0x64
[ +0.000009] bus_add_driver+0x390/0x564
[ +0.000007] driver_register+0x1a8/0x3e4
[ +0.000009] __platform_driver_register+0x6c/0x94
[ +0.000007] meson_dw_hdmi_platform_driver_init+0x30/0x1000 [meson_dw_hdmi]
[ +0.000014] do_one_initcall+0xc4/0x2b0
[ +0.000008] do_init_module+0x154/0x570
[ +0.000010] load_module+0x1a78/0x1ea4
[ +0.000008] __do_sys_init_module+0x184/0x1cc
[ +0.000008] __arm64_sys_init_module+0x78/0xb0
[ +0.000008] invoke_syscall+0x74/0x260
[ +0.000008] el0_svc_common.constprop.0+0xcc/0x260
[ +0.000009] do_el0_svc+0x50/0x70
[ +0.000008] el0_svc+0x68/0x1a0
[ +0.000009] el0t_64_sync_handler+0x11c/0x150
[ +0.000009] el0t_64_sync+0x18c/0x190
[ +0.000014] Allocated by task 902:
[ +0.000007] kasan_save_stack+0x2c/0x5c
[ +0.000009] __kasan_kmalloc+0x90/0xd0
[ +0.000007] __kmalloc_node+0x240/0x580
[ +0.000010] memcg_alloc_slab_cgroups+0xa4/0x1ac
[ +0.000010] memcg_slab_post_alloc_hook+0xbc/0x4c0
[ +0.000008] kmem_cache_alloc_node+0x1d0/0x490
[ +0.000009] __alloc_skb+0x1d4/0x310
[ +0.000010] alloc_skb_with_frags+0x8c/0x620
[ +0.000008] sock_alloc_send_pskb+0x5ac/0x6d0
[ +0.000010] unix_dgram_sendmsg+0x2e0/0x12f0
[ +0.000010] sock_sendmsg+0xcc/0x110
[ +0.000007] sock_write_iter+0x1d0/0x304
[ +0.000008] new_sync_write+0x364/0x460
[ +0.000007] vfs_write+0x420/0x5ac
[ +0.000008] ksys_write+0x19c/0x1f0
[ +0.000008] __arm64_sys_write+0x78/0xb0
[ +0.000007] invoke_syscall+0x74/0x260
[ +0.000008] el0_svc_common.constprop.0+0x1a8/0x260
[ +0.000009] do_el0_svc+0x50/0x70
[ +0.000007] el0_svc+0x68/0x1a0
[ +0.000008] el0t_64_sync_handler+0x11c/0x150
[ +0.000008] el0t_64_sync+0x18c/0x190
[ +0.000013] Freed by task 2509:
[ +0.000008] kasan_save_stack+0x2c/0x5c
[ +0.000007] kasan_set_track+0x2c/0x40
[ +0.000008] kasan_set_free_info+0x28/0x50
[ +0.000008] ____kasan_slab_free+0x128/0x1d4
[ +0.000008] __kasan_slab_free+0x18/0x24
[ +0.000007] slab_free_freelist_hook+0x108/0x230
[ +0.000010]
---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，该漏洞源于未调用component_master_del函数，可能导致释放后重用。
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-2022-50560 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2022-50560 补丁与修复 (5)
同批安全公告 · Linux · 2025-10-22 · 共 67 条
| CVE-2023-53711 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53705 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53698 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53692 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53718 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50569 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50570 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50567 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53695 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53707 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50581 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53729 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53713 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53726 | 7.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53704 | Linux kernel 安全漏洞 | |
| CVE-2023-53706 | Linux kernel 安全漏洞 | |
| CVE-2023-53714 | Linux kernel 安全漏洞 | |
| CVE-2023-53708 | Linux kernel 安全漏洞 | |
| CVE-2023-53712 | Linux kernel 安全漏洞 | |
| CVE-2023-53719 | Linux kernel 安全漏洞 |
显示前 20 条，共 67 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2022-50560
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