CVE-2024-42294
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-42294
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-42294.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-42294
- Downstream
- Related
- Published
- 2024-08-17T09:09:02Z
- Modified
- 2025-10-17T09:58:52.174009Z
- Summary
- block: fix deadlock between sd_remove & sd_release
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
block: fix deadlock between sdremove & sdrelease
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] _switchto+0x174/0x338 [ 2538.459436] _schedule+0x628/0x9c4 [ 2538.459442] schedule+0x7c/0xe8 [ 2538.459447] schedulepreemptdisabled+0x24/0x40 [ 2538.459453] _mutexlock+0x3ec/0xf04 [ 2538.459456] _mutexlockslowpath+0x14/0x24 [ 2538.459459] mutexlock+0x30/0xd8 [ 2538.459462] delgendisk+0xdc/0x350 [ 2538.459466] sdremove+0x30/0x60 [ 2538.459470] devicereleasedriverinternal+0x1c4/0x2c4 [ 2538.459474] devicereleasedriver+0x18/0x28 [ 2538.459478] busremovedevice+0x15c/0x174 [ 2538.459483] devicedel+0x1d0/0x358 [ 2538.459488] _scsiremovedevice+0xa8/0x198 [ 2538.459493] scsiforgethost+0x50/0x70 [ 2538.459497] scsiremovehost+0x80/0x180 [ 2538.459502] usbstordisconnect+0x68/0xf4 [ 2538.459506] usbunbindinterface+0xd4/0x280 [ 2538.459510] devicereleasedriverinternal+0x1c4/0x2c4 [ 2538.459514] devicereleasedriver+0x18/0x28 [ 2538.459518] busremovedevice+0x15c/0x174 [ 2538.459523] devicedel+0x1d0/0x358 [ 2538.459528] usbdisabledevice+0x84/0x194 [ 2538.459532] usbdisconnect+0xec/0x300 [ 2538.459537] hubevent+0xb80/0x1870 [ 2538.459541] processscheduledworks+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] _switchto+0x174/0x338 [ 2538.461021] _schedule+0x628/0x9c4 [ 2538.461025] schedule+0x7c/0xe8 [ 2538.461030] blkqueueenter+0xc4/0x160 [ 2538.461034] blkmqallocrequest+0x120/0x1d4 [ 2538.461037] scsiexecutecmd+0x7c/0x23c [ 2538.461040] ioctlinternalcommand+0x5c/0x164 [ 2538.461046] scsisetmediumremoval+0x5c/0xb0 [ 2538.461051] sdrelease+0x50/0x94 [ 2538.461054] blkdevput+0x190/0x28c [ 2538.461058] blkdevrelease+0x28/0x40 [ 2538.461063] _fput+0xf8/0x2a8 [ 2538.461066] _fputsync+0x28/0x5c [ 2538.461070] _arm64sysclose+0x84/0xe8 [ 2538.461073] invokesyscall+0x58/0x114 [ 2538.461078] el0svccommon+0xac/0xe0 [ 2538.461082] doel0svc+0x1c/0x28 [ 2538.461087] el0svc+0x38/0x68 [ 2538.461090] el0t64synchandler+0x68/0xbc [ 2538.461093] el0t64_sync+0x1a8/0x1ac
T1: T2: sdremove delgendisk _blkmarkdiskdead blkfreezequeuestart ++q->mqfreezedepth bdevrelease mutexlock(&disk->openmutex) sdrelease scsiexecutecmd blkqueueenter waitevent(!q->mqfreezedepth) mutexlock(&disk->openmutex)
SCSI does not set GDOWNSQUEUE, so QUEUEFLAGDYING 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.
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedeec1be4c30df73238b936fa9f3653773a6f8b15cFixed5a5625a83eac91fdff1d5f0202ecfc45a31983c9
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedeec1be4c30df73238b936fa9f3653773a6f8b15cFixedf5418f48a93b69ed9e6a2281eee06b412f14a544
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedeec1be4c30df73238b936fa9f3653773a6f8b15cFixed7e04da2dc7013af50ed3a2beb698d5168d1e594b
Affected versions
v6.*
Database specific
vanir_signatures
[
{
"digest": {
"length": 1553.0,
"function_hash": "179152039670503541075347096297988574511"
},
"target": {
"function": "del_gendisk",
"file": "block/genhd.c"
},
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@f5418f48a93b69ed9e6a2281eee06b412f14a544",
"signature_version": "v1",
"id": "CVE-2024-42294-5bf065c8"
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"33904293804401956078909965663963225146",
"179697840625988024541262443056999597047",
"75947079409513100616355414360388603939",
"318462332850116439126470006301224628272",
"137220048366583712204055753909097613375"
]
},
"target": {
"file": "block/genhd.c"
},
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@f5418f48a93b69ed9e6a2281eee06b412f14a544",
"signature_version": "v1",
"id": "CVE-2024-42294-82422855"
},
{
"digest": {
"length": 1553.0,
"function_hash": "179152039670503541075347096297988574511"
},
"target": {
"function": "del_gendisk",
"file": "block/genhd.c"
},
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7e04da2dc7013af50ed3a2beb698d5168d1e594b",
"signature_version": "v1",
"id": "CVE-2024-42294-83031275"
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"33904293804401956078909965663963225146",
"179697840625988024541262443056999597047",
"75947079409513100616355414360388603939",
"318462332850116439126470006301224628272",
"137220048366583712204055753909097613375"
]
},
"target": {
"file": "block/genhd.c"
},
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7e04da2dc7013af50ed3a2beb698d5168d1e594b",
"signature_version": "v1",
"id": "CVE-2024-42294-8a8e4f83"
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"33904293804401956078909965663963225146",
"179697840625988024541262443056999597047",
"75947079409513100616355414360388603939",
"318462332850116439126470006301224628272",
"137220048366583712204055753909097613375"
]
},
"target": {
"file": "block/genhd.c"
},
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5a5625a83eac91fdff1d5f0202ecfc45a31983c9",
"signature_version": "v1",
"id": "CVE-2024-42294-a98035fa"
},
{
"digest": {
"length": 1565.0,
"function_hash": "12556440847168062269369598933028079740"
},
"target": {
"function": "del_gendisk",
"file": "block/genhd.c"
},
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5a5625a83eac91fdff1d5f0202ecfc45a31983c9",
"signature_version": "v1",
"id": "CVE-2024-42294-d906c3e2"
}
]