CVE-2024-50146— 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，该漏洞源于在mlx5e_netdev_change_profile函数中，在配置文件回滚失败时调用cleanup。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service影响版本矩阵 10
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 3ef14e463f6ed0218710f56b97e1a7d0448784d2< db84cb4c8c565e6d4de84b23c2818b63991adfdd |
affected |
3ef14e463f6ed0218710f56b97e1a7d0448784d2< d6fe973c8873c998734a050f366b28facc03d32a |
affected | ||
3ef14e463f6ed0218710f56b97e1a7d0448784d2< 3955b77494c3c7d14873b1db67e7e00c46a714db |
affected | ||
3ef14e463f6ed0218710f56b97e1a7d0448784d2< 4dbc1d1a9f39c3711ad2a40addca04d07d9ab5d0 |
affected | ||
5.12 |
affected | ||
< 5.12 |
unaffected | ||
6.1.123≤ 6.1.* |
unaffected | ||
6.6.80≤ 6.6.* |
unaffected | ||
| … +2 条更多 | |||
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一、 漏洞 CVE-2024-50146 基础信息
漏洞信息
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Vulnerability Title
net/mlx5e: Don't call cleanup on profile rollback failure
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Don't call cleanup on profile rollback failure
When profile rollback fails in mlx5e_netdev_change_profile, the netdev
profile var is left set to NULL. Avoid a crash when unloading the driver
by not calling profile->cleanup in such a case.
This was encountered while testing, with the original trigger that
the wq rescuer thread creation got interrupted (presumably due to
Ctrl+C-ing modprobe), which gets converted to ENOMEM (-12) by
mlx5e_priv_init, the profile rollback also fails for the same reason
(signal still active) so the profile is left as NULL, leading to a crash
later in _mlx5e_remove.
[ 732.473932] mlx5_core 0000:08:00.1: E-Switch: Unload vfs: mode(OFFLOADS), nvfs(2), necvfs(0), active vports(2)
[ 734.525513] workqueue: Failed to create a rescuer kthread for wq "mlx5e": -EINTR
[ 734.557372] mlx5_core 0000:08:00.1: mlx5e_netdev_init_profile:6235:(pid 6086): mlx5e_priv_init failed, err=-12
[ 734.559187] mlx5_core 0000:08:00.1 eth3: mlx5e_netdev_change_profile: new profile init failed, -12
[ 734.560153] workqueue: Failed to create a rescuer kthread for wq "mlx5e": -EINTR
[ 734.589378] mlx5_core 0000:08:00.1: mlx5e_netdev_init_profile:6235:(pid 6086): mlx5e_priv_init failed, err=-12
[ 734.591136] mlx5_core 0000:08:00.1 eth3: mlx5e_netdev_change_profile: failed to rollback to orig profile, -12
[ 745.537492] BUG: kernel NULL pointer dereference, address: 0000000000000008
[ 745.538222] #PF: supervisor read access in kernel mode
<snipped>
[ 745.551290] Call Trace:
[ 745.551590] <TASK>
[ 745.551866] ? __die+0x20/0x60
[ 745.552218] ? page_fault_oops+0x150/0x400
[ 745.555307] ? exc_page_fault+0x79/0x240
[ 745.555729] ? asm_exc_page_fault+0x22/0x30
[ 745.556166] ? mlx5e_remove+0x6b/0xb0 [mlx5_core]
[ 745.556698] auxiliary_bus_remove+0x18/0x30
[ 745.557134] device_release_driver_internal+0x1df/0x240
[ 745.557654] bus_remove_device+0xd7/0x140
[ 745.558075] device_del+0x15b/0x3c0
[ 745.558456] mlx5_rescan_drivers_locked.part.0+0xb1/0x2f0 [mlx5_core]
[ 745.559112] mlx5_unregister_device+0x34/0x50 [mlx5_core]
[ 745.559686] mlx5_uninit_one+0x46/0xf0 [mlx5_core]
[ 745.560203] remove_one+0x4e/0xd0 [mlx5_core]
[ 745.560694] pci_device_remove+0x39/0xa0
[ 745.561112] device_release_driver_internal+0x1df/0x240
[ 745.561631] driver_detach+0x47/0x90
[ 745.562022] bus_remove_driver+0x84/0x100
[ 745.562444] pci_unregister_driver+0x3b/0x90
[ 745.562890] mlx5_cleanup+0xc/0x1b [mlx5_core]
[ 745.563415] __x64_sys_delete_module+0x14d/0x2f0
[ 745.563886] ? kmem_cache_free+0x1b0/0x460
[ 745.564313] ? lockdep_hardirqs_on_prepare+0xe2/0x190
[ 745.564825] do_syscall_64+0x6d/0x140
[ 745.565223] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 745.565725] RIP: 0033:0x7f1579b1288b
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，该漏洞源于在mlx5e_netdev_change_profile函数中，在配置文件回滚失败时调用cleanup。
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-2024-50146 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-50146 补丁与修复 (4)
同批安全公告 · Linux · 2024-11-07 · 共 34 条
| CVE-2024-50162 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-50154 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-50152 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-50139 | 7.9 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50151 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50161 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50164 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50158 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50165 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50150 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50149 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50143 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50141 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50145 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50170 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50159 | 7.0 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-50156 | Linux kernel 安全漏洞 | |
| CVE-2024-50168 | Linux kernel 安全漏洞 | |
| CVE-2024-50167 | Linux kernel 安全漏洞 | |
| CVE-2024-50169 | Linux kernel 安全漏洞 |
显示前 20 条，共 34 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-50146
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