ghsa-x67r-7mr9-vwm2
Vulnerability from github
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->task_info object. The major changes are: - vm->task_info is a dynamically allocated ptr now, and its uasge is reference counted. - introducing two new helper funcs for task_info lifecycle management - amdgpu_vm_get_task_info: reference counts up task_info before returning this info - amdgpu_vm_put_task_info: reference counts down task_info - last put to task_info() 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 task_info - Do not duplicate the debug messages (ti vs no ti) - Get first reference of task_info in vm_init(), put last in vm_fini()
V4: Fixed review comments from Felix - fix double reference increment in create_task_info - change amdgpu_vm_get_task_info_pasid - additional changes in amdgpu_gem.c while porting
{
"affected": [],
"aliases": [
"CVE-2024-41008"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-16T08:15:02Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: change vm-\u003etask_info handling\n\nThis patch changes the handling and lifecycle of vm-\u003etask_info object.\nThe major changes are:\n- vm-\u003etask_info is a dynamically allocated ptr now, and its uasge is\n reference counted.\n- introducing two new helper funcs for task_info lifecycle management\n - amdgpu_vm_get_task_info: reference counts up task_info before\n returning this info\n - amdgpu_vm_put_task_info: reference counts down task_info\n- last put to task_info() frees task_info from the vm.\n\nThis patch also does logistical changes required for existing usage\nof vm-\u003etask_info.\n\nV2: Do not block all the prints when task_info not found (Felix)\n\nV3: Fixed review comments from Felix\n - Fix wrong indentation\n - No debug message for -ENOMEM\n - Add NULL check for task_info\n - Do not duplicate the debug messages (ti vs no ti)\n - Get first reference of task_info in vm_init(), put last\n in vm_fini()\n\nV4: Fixed review comments from Felix\n - fix double reference increment in create_task_info\n - change amdgpu_vm_get_task_info_pasid\n - additional changes in amdgpu_gem.c while porting",
"id": "GHSA-x67r-7mr9-vwm2",
"modified": "2024-07-16T09:30:38Z",
"published": "2024-07-16T09:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41008"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b8f67b9ddf4f8fe6dd536590712b5912ad78f99c"
}
],
"schema_version": "1.4.0",
"severity": []
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.