| From bippy-1.1.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2023-53074: drm/amdgpu: fix ttm_bo calltrace warning in psp_hw_fini |
| |
| 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] <TASK> |
| [ 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] |
| |
| The Linux kernel CVE team has assigned CVE-2023-53074 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.1.21 with commit 7be9a2f8c5179520a7d5570e648e0c97d09e4fae |
| Fixed in 6.2.8 with commit 55a7c647ebf6e376c45d8322568dd6eb71937139 |
| Fixed in 6.3 with commit 23f4a2d29ba57bf88095f817de5809d427fcbe7e |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2023-53074 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/7be9a2f8c5179520a7d5570e648e0c97d09e4fae |
| https://git.kernel.org/stable/c/55a7c647ebf6e376c45d8322568dd6eb71937139 |
| https://git.kernel.org/stable/c/23f4a2d29ba57bf88095f817de5809d427fcbe7e |
