CVE-2024-26797
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-26797
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26797.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-26797
- Downstream
- Published
- 2024-04-04T08:20:26Z
- Modified
- 2025-10-15T08:23:54.916884Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- drm/amd/display: Prevent potential buffer overflow in map_hw_resources
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Prevent potential buffer overflow in maphwresources
Adds a check in the maphwresources function to prevent a potential buffer overflow. The function was accessing arrays using an index that could potentially be greater than the size of the arrays, leading to a buffer overflow.
Adds a check to ensure that the index is within the bounds of the arrays. If the index is out of bounds, an error message is printed and break it will continue execution with just ignoring extra data early to prevent the buffer overflow.
Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/dml2wrapper.c:79 maphwresources() error: buffer overflow 'dml2->v20.scratch.dmltodcpipemapping.dispcfgtostreamid' 6 <= 7 drivers/gpu/drm/amd/amdgpu/../display/dc/dml2/dml2wrapper.c:81 maphwresources() error: buffer overflow 'dml2->v20.scratch.dmltodcpipemapping.dispcfgtoplaneid' 6 <= 7
- 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
-
Introduced7966f319c66d9468623c6a6a017ecbc0dd79be75Fixed50a6302cf881f67f1410461a68fe9eabd00ff31d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced7966f319c66d9468623c6a6a017ecbc0dd79be75Fixed0f8ca019544a252d1afb468ce840c6dcbac73af4
Affected versions
v6.*
Database specific
{
"vanir_signatures": [
{
"id": "CVE-2024-26797-99af1896",
"signature_type": "Function",
"target": {
"file": "drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c",
"function": "map_hw_resources"
},
"deprecated": false,
"digest": {
"length": 1265.0,
"function_hash": "330541912608213846013534812524136582766"
},
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@50a6302cf881f67f1410461a68fe9eabd00ff31d"
},
{
"id": "CVE-2024-26797-9bec6e14",
"signature_type": "Line",
"target": {
"file": "drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c"
},
"deprecated": false,
"digest": {
"line_hashes": [
"312048367246531523277169068400342514935",
"37896577273909636136988044963606220635",
"186020294037269306280411900856462895955",
"204721727797005630825535252687892459747"
],
"threshold": 0.9
},
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@50a6302cf881f67f1410461a68fe9eabd00ff31d"
},
{
"id": "CVE-2024-26797-d422944b",
"signature_type": "Line",
"target": {
"file": "drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c"
},
"deprecated": false,
"digest": {
"line_hashes": [
"312048367246531523277169068400342514935",
"37896577273909636136988044963606220635",
"186020294037269306280411900856462895955",
"204721727797005630825535252687892459747"
],
"threshold": 0.9
},
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0f8ca019544a252d1afb468ce840c6dcbac73af4"
},
{
"id": "CVE-2024-26797-d5b4040f",
"signature_type": "Function",
"target": {
"file": "drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c",
"function": "map_hw_resources"
},
"deprecated": false,
"digest": {
"length": 1265.0,
"function_hash": "330541912608213846013534812524136582766"
},
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0f8ca019544a252d1afb468ce840c6dcbac73af4"
}
]
}