Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid() The vm pointer returned from amdgpu_vm_get_vm_from_pasid() is only valid while the lock is still being held. Once xa_unlock_irqrestore is called and returned, the pointer is no longer under lock and is subject to modification. Since, the caller still dereferences vm->task_info in amdgpu_vm_get_task_info_vm() after the lock is removed, this causes a use after unlock problem. Remove the lifetime issue present in amdgpu_vm_get_task_info_pasid() through removing the amdgpu_vm_get_vm_from_pasid() function from amdgpu_vm.c and making the relevant code inline to hold the lock while it is still in use. (cherry picked from commit 9d01579f3f868b333acc901815972685989092c7)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b8f67b9ddf4f8fe6dd536590712b5912ad78f99c before fe16a7e5336ae888751984e30c451fbf7cfa5df7; affected b8f67b9ddf4f8fe6dd536590712b5912ad78f99c before 1173190412fb9d12e7efce76734118d9712ff970; affected b8f67b9ddf4f8fe6dd536590712b5912ad78f99c before 5d5fb9124a2bba96a7807086d8fe0f7ce810d546; affected b8f67b9ddf4f8fe6dd536590712b5912ad78f99c before 04cc4aa3617b0ed67e859f91f09de5d896a46f3a; affected 251840f22eff35c25de531a3fcb523df94c128c0; affected 6.6.160 before 6.7 |
| Linux / Linux | affected 6.9; unaffected 0 before 6.9; unaffected 6.12.101 through 6.12.*; unaffected 6.18.42 through 6.18.*; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/fe16a7e5336ae888751984e30c451fbf7cfa5df7
- https://git.kernel.org/stable/c/1173190412fb9d12e7efce76734118d9712ff970
- https://git.kernel.org/stable/c/5d5fb9124a2bba96a7807086d8fe0f7ce810d546
- https://git.kernel.org/stable/c/04cc4aa3617b0ed67e859f91f09de5d896a46f3a
ADP enrichment
No English description supplied.
No references supplied.