CVE-2023-53074 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/amdgpu: fix ttm_bo calltrace warning in psp_hw_fini

The call trace occurs when the amdgpu is removed after the mode1 reset. During mode1 reset from suspend to resume there is no need to reinitialize the ta firmware buffer which caused the bo pin_count increase redundantly.

[ 489.885525] Call Trace: [ 489.885525] [ 489.885526] amdttm_bo_put+0x34/0x50 [amdttm] [ 489.885529] amdgpu_bo_free_kernel+0xe8/0x130 [amdgpu] [ 489.885620] psp_free_shared_bufs+0xb7/0x150 [amdgpu] [ 489.885720] psp_hw_fini+0xce/0x170 [amdgpu] [ 489.885815] amdgpu_device_fini_hw+0x2ff/0x413 [amdgpu] [ 489.885960] ? blocking_notifier_chain_unregister+0x56/0xb0 [ 489.885962] amdgpu_driver_unload_kms+0x51/0x60 [amdgpu] [ 489.886049] amdgpu_pci_remove+0x5a/0x140 [amdgpu] [ 489.886132] ? __pm_runtime_resume+0x60/0x90 [ 489.886134] pci_device_remove+0x3e/0xb0 [ 489.886135] __device_release_driver+0x1ab/0x2a0 [ 489.886137] driver_detach+0xf3/0x140 [ 489.886138] bus_remove_driver+0x6c/0xf0 [ 489.886140] driver_unregister+0x31/0x60 [ 489.886141] pci_unregister_driver+0x40/0x90 [ 489.886142] amdgpu_exit+0x15/0x451 [amdgpu]

Reference

https://git.kernel.org/stable/c/23f4a2d29ba57bf88095f817de5809d427fcbe7e https://git.kernel.org/stable/c/55a7c647ebf6e376c45d8322568dd6eb71937139 https://git.kernel.org/stable/c/7be9a2f8c5179520a7d5570e648e0c97d09e4fae