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PUBLISHED

CVE-2021-47410

drm/amdkfd: fix svm_migrate_fini warning

Reserved:2024-05-21
Published:2024-05-21
Updated:2024-06-11

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix svm_migrate_fini warning Device manager releases device-specific resources when a driver disconnects from a device, devm_memunmap_pages and devm_release_mem_region calls in svm_migrate_fini are redundant. It causes below warning trace after patch "drm/amdgpu: Split amdgpu_device_fini into early and late", so remove function svm_migrate_fini. BUG: https://gitlab.freedesktop.org/drm/amd/-/issues/1718 WARNING: CPU: 1 PID: 3646 at drivers/base/devres.c:795 devm_release_action+0x51/0x60 Call Trace: ? memunmap_pages+0x360/0x360 svm_migrate_fini+0x2d/0x60 [amdgpu] kgd2kfd_device_exit+0x23/0xa0 [amdgpu] amdgpu_amdkfd_device_fini_sw+0x1d/0x30 [amdgpu] amdgpu_device_fini_sw+0x45/0x290 [amdgpu] amdgpu_driver_release_kms+0x12/0x30 [amdgpu] drm_dev_release+0x20/0x40 [drm] release_nodes+0x196/0x1e0 device_release_driver_internal+0x104/0x1d0 driver_detach+0x47/0x90 bus_remove_driver+0x7a/0xd0 pci_unregister_driver+0x3d/0x90 amdgpu_exit+0x11/0x20 [amdgpu]

Product status

Default status
unaffected

1da177e4c3f4 before ac7d732b24f4
affected

1da177e4c3f4 before 197ae17722e9
affected

Default status
affected

5.14.11
unaffected

5.15
unaffected

References

https://git.kernel.org/stable/c/ac7d732b24f4061f8a732ada49b054ab38c63e15

https://git.kernel.org/stable/c/197ae17722e989942b36e33e044787877f158574

cve.org CVE-2021-47410

nvd.nist.gov CVE-2021-47410

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