CVE-2024-49943
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-49943
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-49943.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-49943
- Downstream
- Related
- Published
- 2024-10-21T18:02:01Z
- Modified
- 2025-10-15T00:55:01.032520Z
- Summary
- drm/xe/guc_submit: add missing locking in wedged_fini
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/xe/gucsubmit: add missing locking in wedgedfini
Any non-wedged queue can have a zero refcount here and can be running concurrently with an async queue destroy, therefore dereferencing the queue ptr to check wedge status after the lookup can trigger UAF if queue is not wedged. Fix this by keeping the submission_state lock held around the check to postpone the free and make the check safe, before dropping again around the put() to avoid the deadlock.
(cherry picked from commit d28af0b6b9580b9f90c265a7da0315b0ad20bbfd)
- 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
-
Introduced8ed9aaae39f39130b7a3eb2726be05d7f64b344cFixedd88f9bab7e62dd0dbe983fa70cf040042a60cc84
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8ed9aaae39f39130b7a3eb2726be05d7f64b344cFixed790533e44bfc7af929842fccd9674c9f424d4627
Affected versions
v6.*
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.11.1
v6.11.2
v6.12-rc1
v6.9
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7
Database specific
vanir_signatures
[
{
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d88f9bab7e62dd0dbe983fa70cf040042a60cc84",
"signature_version": "v1",
"target": {
"function": "guc_submit_wedged_fini",
"file": "drivers/gpu/drm/xe/xe_guc_submit.c"
},
"digest": {
"function_hash": "180120439383690888317607355514386816448",
"length": 217.0
},
"id": "CVE-2024-49943-20151b00"
},
{
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@790533e44bfc7af929842fccd9674c9f424d4627",
"signature_version": "v1",
"target": {
"file": "drivers/gpu/drm/xe/xe_guc_submit.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"133213004026673496883429124832754483812",
"149913796174034761148503942871981184777",
"271373568832299202234585476756354287349",
"81874319737968083632003207008281048227",
"9080089171815551908142761249300225531",
"104735100421625057990549434432988095814"
]
},
"id": "CVE-2024-49943-59147b91"
},
{
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@790533e44bfc7af929842fccd9674c9f424d4627",
"signature_version": "v1",
"target": {
"function": "guc_submit_wedged_fini",
"file": "drivers/gpu/drm/xe/xe_guc_submit.c"
},
"digest": {
"function_hash": "180120439383690888317607355514386816448",
"length": 217.0
},
"id": "CVE-2024-49943-9a2a87bd"
},
{
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d88f9bab7e62dd0dbe983fa70cf040042a60cc84",
"signature_version": "v1",
"target": {
"file": "drivers/gpu/drm/xe/xe_guc_submit.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"133213004026673496883429124832754483812",
"149913796174034761148503942871981184777",
"271373568832299202234585476756354287349",
"81874319737968083632003207008281048227",
"9080089171815551908142761249300225531",
"104735100421625057990549434432988095814"
]
},
"id": "CVE-2024-49943-e6292972"
}
]