Error in amd driver?

[Alex Deucher]

On Mon, May 6, 2024 at 6:00 AM Borislav Petkov <bp at alien8.de> wrote:
>
> + amd-gfx at lists.freedesktop.org
>
> On Sun, May 05, 2024 at 09:59:22PM +0300, Tranton Baddy wrote:
> > I have this in my dmesg since version 6.8.6, not sure when it appeared. Is amdgpu driver has bug?

Should be fixed in:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d3a9331a6591e9df64791e076f6591f440af51c3

Alex

> > [   64.253144] ==================================================================
> > [   64.253162] BUG: KFENCE: use-after-free read in amdgpu_bo_move+0x51f/0x7a0
> >
> > [   64.253183] Use-after-free read at 0x00000000671c48dd (in kfence-#111):
> > [   64.253192]  amdgpu_bo_move+0x51f/0x7a0
> > [   64.253202]  ttm_bo_handle_move_mem+0xcf/0x180
> > [   64.253211]  ttm_mem_evict_first+0x1c5/0x500
> > [   64.253218]  ttm_resource_manager_evict_all+0xa3/0x1e0
> > [   64.253228]  amdgpu_device_prepare+0x66/0x110
> > [   64.253237]  amdgpu_pmops_runtime_suspend+0xbe/0x1c0
> > [   64.253248]  pci_pm_runtime_suspend+0x74/0x200
> > [   64.253259]  vga_switcheroo_runtime_suspend+0x21/0xb0
> > [   64.253268]  __rpm_callback+0x5f/0x190
> > [   64.253277]  rpm_callback+0x7f/0x90
> > [   64.253283]  rpm_suspend+0x120/0x6a0
> > [   64.253290]  pm_runtime_work+0x9c/0xa0
> > [   64.253297]  process_one_work+0x164/0x330
> > [   64.253310]  worker_thread+0x302/0x430
> > [   64.253320]  kthread+0xe4/0x110
> > [   64.253329]  ret_from_fork+0x4c/0x60
> > [   64.253341]  ret_from_fork_asm+0x1b/0x30
> >
> > [   64.253353] kfence-#111: 0x00000000d018cf03-0x0000000034e821d1, size=96, cache=kmalloc-96
> >
> > [   64.253363] allocated by task 152 on cpu 3 at 64.248952s:
> > [   64.253418]  kmalloc_trace+0x283/0x340
> > [   64.253427]  amdgpu_vram_mgr_new+0x8f/0x3f0
> > [   64.253435]  ttm_resource_alloc+0x39/0x90
> > [   64.253444]  ttm_bo_mem_space+0xa4/0x260
> > [   64.253450]  ttm_mem_evict_first+0x18a/0x500
> > [   64.253456]  ttm_resource_manager_evict_all+0xa3/0x1e0
> > [   64.253465]  amdgpu_device_prepare+0x66/0x110
> > [   64.253472]  amdgpu_pmops_runtime_suspend+0xbe/0x1c0
> > [   64.253481]  pci_pm_runtime_suspend+0x74/0x200
> > [   64.253489]  vga_switcheroo_runtime_suspend+0x21/0xb0
> > [   64.253496]  __rpm_callback+0x5f/0x190
> > [   64.253503]  rpm_callback+0x7f/0x90
> > [   64.253509]  rpm_suspend+0x120/0x6a0
> > [   64.253516]  pm_runtime_work+0x9c/0xa0
> > [   64.253523]  process_one_work+0x164/0x330
> > [   64.253532]  worker_thread+0x302/0x430
> > [   64.253542]  kthread+0xe4/0x110
> > [   64.253550]  ret_from_fork+0x4c/0x60
> > [   64.253559]  ret_from_fork_asm+0x1b/0x30
> >
> > [   64.253570] freed by task 152 on cpu 3 at 64.253117s:
> > [   64.253582]  ttm_resource_free+0x67/0x90
> > [   64.253591]  ttm_bo_move_accel_cleanup+0x247/0x2e0
> > [   64.253598]  amdgpu_bo_move+0x1bd/0x7a0
> > [   64.253605]  ttm_bo_handle_move_mem+0xcf/0x180
> > [   64.253612]  ttm_mem_evict_first+0x1c5/0x500
> > [   64.253618]  ttm_resource_manager_evict_all+0xa3/0x1e0
> > [   64.253626]  amdgpu_device_prepare+0x66/0x110
> > [   64.253634]  amdgpu_pmops_runtime_suspend+0xbe/0x1c0
> > [   64.253642]  pci_pm_runtime_suspend+0x74/0x200
> > [   64.253650]  vga_switcheroo_runtime_suspend+0x21/0xb0
> > [   64.253658]  __rpm_callback+0x5f/0x190
> > [   64.253664]  rpm_callback+0x7f/0x90
> > [   64.253671]  rpm_suspend+0x120/0x6a0
> > [   64.253677]  pm_runtime_work+0x9c/0xa0
> > [   64.253684]  process_one_work+0x164/0x330
> > [   64.253693]  worker_thread+0x302/0x430
> > [   64.253703]  kthread+0xe4/0x110
> > [   64.253711]  ret_from_fork+0x4c/0x60
> > [   64.253723]  ret_from_fork_asm+0x1b/0x30
> >
> > [   64.253735] CPU: 3 PID: 152 Comm: kworker/3:2 Tainted: P           OE      6.8.9 #3 e7323d0d25f89e853881fc823e59523bdcc577c6
> > [   64.253756] Hardware name: Hewlett-Packard HP Pavilion Notebook /80B9, BIOS F.54 05/27/2019
> > [   64.253761] Workqueue: pm pm_runtime_work
> > [   64.253771] ==================================================================
> >
>
> --
> Regards/Gruss,
>     Boris.
>
> https://people.kernel.org/tglx/notes-about-netiquette