CVE-2024-50117: linux NULL Pointer Dereference
Vulnerability summary
CVE-2024-50117 is a high (CVSS 7.3) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 63 · Related 60Timeline
- 05-11-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
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)
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.3HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
16%
Versus all other CVEs
30-day change
0.00 pp
From 0.25% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu134 products
- linux< 4.4.0-266.300 | < 4.15.0-235.247 | < 5.4.0-208.228 | < 5.15.0-133.144 | < 6.8.0-56.58
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.4.0-1141.147 | < 4.4.0-1179.194 | < 4.15.0-1178.191 | < 5.4.0-1140.150 | < 5.15.0-1078.85 | < 6.8.0-1025.27
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < 58556dcbd5606a5daccaee73b2130bc16b48e025 | ≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < 43b4fa6e0e238c6e2662f4fb61d9f51c2785fb1d | ≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < 234682910971732cd4da96fd95946e296e486b38 | ≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < 6032287747f874b52dc8b9d7490e2799736e035f | ≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < cd67af3c1762de4c2483ae4dbdd98f9ea8fa56e3 | ≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < 975ede2a7bec52b5da1428829b3439667c8a234b | ≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < 1d7175f9c57b1abf9ecfbdfd53ea760761f52ffe | ≥ d38ceaf99ed015f2a0b9af3499791bd3a3daae21, < bf58f03931fdcf7b3c45cb76ac13244477a60f44 | 4.2
- linux_kernel≥ 4.2, < 4.19.323 | ≥ 4.20, < 5.4.285 | ≥ 5.5, < 5.10.229 | ≥ 5.11, < 5.15.170 | ≥ 5.16, < 6.1.115 | ≥ 6.2, < 6.6.59 | ≥ 6.7, < 6.11.6 | 6.12:rc1 | 6.12:rc2 | 6.12:rc3 | 6.12:rc4
Debian1 product
- linux< 6.1.115-1 | < 6.11.6-1
3 vendors · 137 products