CVE-2026-68245 (GCVE-0-2026-68245)
Vulnerability from cvelistv5
Published
2026-08-10 12:01
Modified
2026-10-21 12:43
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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)
References
Impacted products
Vendor Product Version
Linux Linux Version: b8f67b9ddf4f8fe6dd536590712b5912ad78f99c
Version: b8f67b9ddf4f8fe6dd536590712b5912ad78f99c
Version: b8f67b9ddf4f8fe6dd536590712b5912ad78f99c
Version: b8f67b9ddf4f8fe6dd536590712b5912ad78f99c
Version: 251840f22eff35c25de531a3fcb523df94c128c0
Version: 6.6.160   ≤
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