CVE-2024-42294— 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block组件在处理sd_remove和sd_release时存在死锁问题。
影响版本矩阵 8
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | eec1be4c30df73238b936fa9f3653773a6f8b15c< 5a5625a83eac91fdff1d5f0202ecfc45a31983c9 |
affected |
eec1be4c30df73238b936fa9f3653773a6f8b15c< f5418f48a93b69ed9e6a2281eee06b412f14a544 |
affected | ||
eec1be4c30df73238b936fa9f3653773a6f8b15c< 7e04da2dc7013af50ed3a2beb698d5168d1e594b |
affected | ||
6.5 |
affected | ||
< 6.5 |
unaffected | ||
6.6.44≤ 6.6.* |
unaffected | ||
6.10.3≤ 6.10.* |
unaffected | ||
6.11≤ * |
unaffected |
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一、 漏洞 CVE-2024-42294 基础信息
漏洞信息
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Vulnerability Title
block: fix deadlock between sd_remove & sd_release
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
block: fix deadlock between sd_remove & sd_release
Our test report the following hung task:
[ 2538.459400] INFO: task "kworker/0:0":7 blocked for more than 188 seconds.
[ 2538.459427] Call trace:
[ 2538.459430] __switch_to+0x174/0x338
[ 2538.459436] __schedule+0x628/0x9c4
[ 2538.459442] schedule+0x7c/0xe8
[ 2538.459447] schedule_preempt_disabled+0x24/0x40
[ 2538.459453] __mutex_lock+0x3ec/0xf04
[ 2538.459456] __mutex_lock_slowpath+0x14/0x24
[ 2538.459459] mutex_lock+0x30/0xd8
[ 2538.459462] del_gendisk+0xdc/0x350
[ 2538.459466] sd_remove+0x30/0x60
[ 2538.459470] device_release_driver_internal+0x1c4/0x2c4
[ 2538.459474] device_release_driver+0x18/0x28
[ 2538.459478] bus_remove_device+0x15c/0x174
[ 2538.459483] device_del+0x1d0/0x358
[ 2538.459488] __scsi_remove_device+0xa8/0x198
[ 2538.459493] scsi_forget_host+0x50/0x70
[ 2538.459497] scsi_remove_host+0x80/0x180
[ 2538.459502] usb_stor_disconnect+0x68/0xf4
[ 2538.459506] usb_unbind_interface+0xd4/0x280
[ 2538.459510] device_release_driver_internal+0x1c4/0x2c4
[ 2538.459514] device_release_driver+0x18/0x28
[ 2538.459518] bus_remove_device+0x15c/0x174
[ 2538.459523] device_del+0x1d0/0x358
[ 2538.459528] usb_disable_device+0x84/0x194
[ 2538.459532] usb_disconnect+0xec/0x300
[ 2538.459537] hub_event+0xb80/0x1870
[ 2538.459541] process_scheduled_works+0x248/0x4dc
[ 2538.459545] worker_thread+0x244/0x334
[ 2538.459549] kthread+0x114/0x1bc
[ 2538.461001] INFO: task "fsck.":15415 blocked for more than 188 seconds.
[ 2538.461014] Call trace:
[ 2538.461016] __switch_to+0x174/0x338
[ 2538.461021] __schedule+0x628/0x9c4
[ 2538.461025] schedule+0x7c/0xe8
[ 2538.461030] blk_queue_enter+0xc4/0x160
[ 2538.461034] blk_mq_alloc_request+0x120/0x1d4
[ 2538.461037] scsi_execute_cmd+0x7c/0x23c
[ 2538.461040] ioctl_internal_command+0x5c/0x164
[ 2538.461046] scsi_set_medium_removal+0x5c/0xb0
[ 2538.461051] sd_release+0x50/0x94
[ 2538.461054] blkdev_put+0x190/0x28c
[ 2538.461058] blkdev_release+0x28/0x40
[ 2538.461063] __fput+0xf8/0x2a8
[ 2538.461066] __fput_sync+0x28/0x5c
[ 2538.461070] __arm64_sys_close+0x84/0xe8
[ 2538.461073] invoke_syscall+0x58/0x114
[ 2538.461078] el0_svc_common+0xac/0xe0
[ 2538.461082] do_el0_svc+0x1c/0x28
[ 2538.461087] el0_svc+0x38/0x68
[ 2538.461090] el0t_64_sync_handler+0x68/0xbc
[ 2538.461093] el0t_64_sync+0x1a8/0x1ac
T1: T2:
sd_remove
del_gendisk
__blk_mark_disk_dead
blk_freeze_queue_start
++q->mq_freeze_depth
bdev_release
mutex_lock(&disk->open_mutex)
sd_release
scsi_execute_cmd
blk_queue_enter
wait_event(!q->mq_freeze_depth)
mutex_lock(&disk->open_mutex)
SCSI does not set GD_OWNS_QUEUE, so QUEUE_FLAG_DYING is not set in
this scenario. This is a classic ABBA deadlock. To fix the deadlock,
make sure we don't try to acquire disk->open_mutex after freezing
the queue.
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block组件在处理sd_remove和sd_release时存在死锁问题。
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-2024-42294 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-42294 其他参考 (3)
同批安全公告 · Linux · 2024-08-17 · 共 109 条
| CVE-2024-42285 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-42284 | 9.1 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-43847 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-43848 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42287 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42318 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-43832 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42288 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-43845 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-43830 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42293 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42296 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42301 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42311 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42313 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42306 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42304 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42314 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42299 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-42297 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 109 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-42294
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