Bug 2401539 (CVE-2023-53545) - CVE-2023-53545 kernel: drm/amdgpu: unmap and remove csa_va properly
Summary: CVE-2023-53545 kernel: drm/amdgpu: unmap and remove csa_va properly
Keywords:
Status: NEW
Alias: CVE-2023-53545
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-04 16:06 UTC by OSIDB Bzimport
Modified: 2025-10-06 13:08 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2025-10-04 16:06:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: unmap and remove csa_va properly

Root PD BO should be reserved before unmap and remove
a bo_va from VM otherwise lockdep will complain.

v2: check fpriv->csa_va is not NULL instead of amdgpu_mcbp (christian)

[14616.936827] WARNING: CPU: 6 PID: 1711 at drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1762 amdgpu_vm_bo_del+0x399/0x3f0 [amdgpu]
[14616.937096] Call Trace:
[14616.937097]  <TASK>
[14616.937102]  amdgpu_driver_postclose_kms+0x249/0x2f0 [amdgpu]
[14616.937187]  drm_file_free+0x1d6/0x300 [drm]
[14616.937207]  drm_close_helper.isra.0+0x62/0x70 [drm]
[14616.937220]  drm_release+0x5e/0x100 [drm]
[14616.937234]  __fput+0x9f/0x280
[14616.937239]  ____fput+0xe/0x20
[14616.937241]  task_work_run+0x61/0x90
[14616.937246]  exit_to_user_mode_prepare+0x215/0x220
[14616.937251]  syscall_exit_to_user_mode+0x2a/0x60
[14616.937254]  do_syscall_64+0x48/0x90
[14616.937257]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
Comment 1 Alexander B 2025-10-06 13:05:45 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100445-CVE-2023-53545-8d50@gregkh/T
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