CVE-2024-41008
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-41008
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-41008.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-41008
- Downstream
- Related
- Published
- 2024-07-16T08:03:47Z
- Modified
- 2025-10-21T23:39:04.372019Z
- Summary
- drm/amdgpu: change vm->task_info handling
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: change vm->task_info handling
This patch changes the handling and lifecycle of vm->taskinfo object. The major changes are: - vm->taskinfo is a dynamically allocated ptr now, and its uasge is reference counted. - introducing two new helper funcs for taskinfo lifecycle management - amdgpuvmgettaskinfo: reference counts up taskinfo before returning this info - amdgpuvmputtaskinfo: reference counts down taskinfo - last put to taskinfo() frees task_info from the vm.
This patch also does logistical changes required for existing usage of vm->task_info.
V2: Do not block all the prints when task_info not found (Felix)
V3: Fixed review comments from Felix - Fix wrong indentation - No debug message for -ENOMEM - Add NULL check for taskinfo - Do not duplicate the debug messages (ti vs no ti) - Get first reference of taskinfo in vminit(), put last in vmfini()
V4: Fixed review comments from Felix - fix double reference increment in createtaskinfo - change amdgpuvmgettaskinfopasid - additional changes in amdgpugem.c while porting
- 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
-
Introducedd38ceaf99ed015f2a0b9af3499791bd3a3daae21Fixedb8f67b9ddf4f8fe6dd536590712b5912ad78f99c