drm/amd/display: Add null check for head_pipe in dcn32_acquire_idle_pipe_for_head_pipe_in_layer
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null check for head_pipe in dcn32_acquire_idle_pipe_for_head_pipe_in_layer This commit addresses a potential null pointer dereference issue in the `dcn32_acquire_idle_pipe_for_head_pipe_in_layer` function. The issue could occur when `head_pipe` is null. The fix adds a check to ensure `head_pipe` is not null before asserting it. If `head_pipe` is null, the function returns NULL to prevent a potential null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn32/dcn32_resource.c:2690 dcn32_acquire_idle_pipe_for_head_pipe_in_layer() error: we previously assumed 'head_pipe' could be null (see line 2681)
CVE-2024-49918
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-49918
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
"lessThan": "180280f3c4621d699d903773bb84bf7f0bc6a891",
"versionType": "git"
},
{
"status": "affected",
"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
"lessThan": "4f47292f488fa7041284dca1f1244116c18721f1",
"versionType": "git"
},
{
"status": "affected",
"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
"lessThan": "96d4c2ee18d732a248d053aae8c4a27cb1d68d1c",
"versionType": "git"
},
{
"status": "affected",
"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
"lessThan": "ac2140449184a26eac99585b7f69814bd3ba8f2d",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.10.14",
"versionType": "semver",
"lessThanOrEqual": "6.10.*"
},
{
"status": "unaffected",
"version": "6.11.3",
"versionType": "semver",
"lessThanOrEqual": "6.11.*"
},
{
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-49918
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #45909 · Revision 1
- Added to Heist Feed
- Publisher date