CVE-2023-53095
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53095
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53095.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-53095
- Downstream
- Related
- Published
- 2025-05-02T15:55:39Z
- Modified
- 2025-10-21T15:43:59.254972Z
- Summary
- drm/ttm: Fix a NULL pointer dereference
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/ttm: Fix a NULL pointer dereference
The LRU mechanism may look up a resource in the process of being removed from an object. The locking rules here are a bit unclear but it looks currently like res->bo assignment is protected by the LRU lock, whereas bo->resource is protected by the object lock, while clearing of bo->resource is also protected by the LRU lock. This means that if we check that bo->resource points to the LRU resource under the LRU lock we should be safe. So perform that check before deciding to swap out a bo. That avoids dereferencing a NULL bo->resource in ttmboswapout().
- 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
-
Introduced6a9b028994025f5033f10d1da30b29dfdc713384Fixed9ba1720f6c4a0f13c3f3cb5c28132ee75555d04f
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6a9b028994025f5033f10d1da30b29dfdc713384Fixed9d9b1f9f7a72d83ebf173534e76b246349f32374
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6a9b028994025f5033f10d1da30b29dfdc713384Fixed9a9a8fe26751334b7739193a94eba741073b8a55
Affected versions
v5.*
v5.17
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1
v6.1.10
v6.1.11
v6.1.12
v6.1.13
v6.1.14
v6.1.15
v6.1.16
v6.1.17
v6.1.18
v6.1.19
v6.1.2
v6.1.20
v6.1.3
v6.1.4
v6.1.5
v6.1.6
v6.1.7
v6.1.8
v6.1.9
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.2.1
v6.2.2
v6.2.3
v6.2.4
v6.2.5
v6.2.6
v6.2.7
Database specific
vanir_signatures
[
{
"digest": {
"function_hash": "140084496422162175422505187381239009412",
"length": 628.0
},
"target": {
"file": "drivers/gpu/drm/ttm/ttm_device.c",
"function": "ttm_device_swapout"
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9d9b1f9f7a72d83ebf173534e76b246349f32374",
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2023-53095-103fa7c4"
},
{
"digest": {
"function_hash": "140084496422162175422505187381239009412",
"length": 628.0
},
"target": {
"file": "drivers/gpu/drm/ttm/ttm_device.c",
"function": "ttm_device_swapout"
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9a9a8fe26751334b7739193a94eba741073b8a55",
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2023-53095-40d2ca9e"
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"40577106796010479298761670804754430436",
"161237019893515947389530738644575445860",
"70159554559263439239529504643495287254",
"246276920374544185915809691918711962049"
]
},
"target": {
"file": "drivers/gpu/drm/ttm/ttm_device.c"
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9a9a8fe26751334b7739193a94eba741073b8a55",
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2023-53095-8fbb536a"
},
{
"digest": {
"function_hash": "140084496422162175422505187381239009412",
"length": 628.0
},
"target": {
"file": "drivers/gpu/drm/ttm/ttm_device.c",
"function": "ttm_device_swapout"
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9ba1720f6c4a0f13c3f3cb5c28132ee75555d04f",
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2023-53095-97c10d6d"
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"40577106796010479298761670804754430436",
"161237019893515947389530738644575445860",
"70159554559263439239529504643495287254",
"246276920374544185915809691918711962049"
]
},
"target": {
"file": "drivers/gpu/drm/ttm/ttm_device.c"
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9ba1720f6c4a0f13c3f3cb5c28132ee75555d04f",
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2023-53095-a0875313"
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"40577106796010479298761670804754430436",
"161237019893515947389530738644575445860",
"70159554559263439239529504643495287254",
"246276920374544185915809691918711962049"
]
},
"target": {
"file": "drivers/gpu/drm/ttm/ttm_device.c"
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9d9b1f9f7a72d83ebf173534e76b246349f32374",
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2023-53095-d2f07b6f"
}
]