CVE-2024-50117

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd: Guard against bad data for ATIF ACPI method If a BIOS provides bad data in response to an ATIF method call this causes a NULL pointer dereference in the caller. ``` ? show_regs (arch/x86/kernel/dumpstack.c:478 (discriminator 1)) ? __die (arch/x86/kernel/dumpstack.c:423 arch/x86/kernel/dumpstack.c:434) ? page_fault_oops (arch/x86/mm/fault.c:544 (discriminator 2) arch/x86/mm/fault.c:705 (discriminator 2)) ? do_user_addr_fault (arch/x86/mm/fault.c:440 (discriminator 1) arch/x86/mm/fault.c:1232 (discriminator 1)) ? acpi_ut_update_object_reference (drivers/acpi/acpica/utdelete.c:642) ? exc_page_fault (arch/x86/mm/fault.c:1542) ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) ? amdgpu_atif_query_backlight_caps.constprop.0 (drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:387 (discriminator 2)) amdgpu ? amdgpu_atif_query_backlight_caps.constprop.0 (drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:386 (discriminator 1)) amdgpu ``` It has been encountered on at least one system, so guard for it. (cherry picked from commit c9b7c809b89f24e9372a4e7f02d64c950b07fdee)

Reserved 2024-10-21 | Published 2024-11-05 | Updated 2024-11-19 | Assigner Linux

Product status

Default status
unaffected

d38ceaf99ed0 before 58556dcbd560
affected

d38ceaf99ed0 before 43b4fa6e0e23
affected

d38ceaf99ed0 before 234682910971
affected

d38ceaf99ed0 before 6032287747f8
affected

d38ceaf99ed0 before cd67af3c1762
affected

d38ceaf99ed0 before 975ede2a7bec
affected

d38ceaf99ed0 before 1d7175f9c57b
affected

d38ceaf99ed0 before bf58f03931fd
affected

Default status
affected

4.2
affected

Any version before 4.2
unaffected

4.19.323
unaffected

5.4.285
unaffected

5.10.229
unaffected

5.15.170
unaffected

6.1.115
unaffected

6.6.59
unaffected

6.11.6
unaffected

6.12
unaffected

References

git.kernel.org/stable/c/58556dcbd5606a5daccaee73b2130bc16b48e025

git.kernel.org/stable/c/43b4fa6e0e238c6e2662f4fb61d9f51c2785fb1d

git.kernel.org/stable/c/234682910971732cd4da96fd95946e296e486b38

git.kernel.org/stable/c/6032287747f874b52dc8b9d7490e2799736e035f

git.kernel.org/stable/c/cd67af3c1762de4c2483ae4dbdd98f9ea8fa56e3

git.kernel.org/stable/c/975ede2a7bec52b5da1428829b3439667c8a234b

git.kernel.org/stable/c/1d7175f9c57b1abf9ecfbdfd53ea760761f52ffe

git.kernel.org/stable/c/bf58f03931fdcf7b3c45cb76ac13244477a60f44

cve.org (CVE-2024-50117)

nvd.nist.gov (CVE-2024-50117)

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