NULL pointer dereference in Linux kernel - CVE-2024-26662

Vulnerability identifier: #VU90611

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-26662

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the dcn21_set_backlight_level() function in drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hwseq.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Ubuntu
linux-image-6.5.0-44-generic (Ubuntu package)
linux-image-6.5.0-44-generic-64k (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-lowlatency-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-6.5.0-44-lowlatency-64k (Ubuntu package)
linux-image-6.5.0-44-lowlatency (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-starfive (Ubuntu package)
linux-image-6.5.0-1017-starfive (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-6.5.0-1020-raspi (Ubuntu package)
linux-image-6.5.0-1023-aws (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-6.5.0-1023-nvidia-64k (Ubuntu package)
linux-image-6.5.0-1023-nvidia (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-nvidia-64k-6.5 (Ubuntu package)
linux-image-nvidia-6.5 (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-6.5.0-1024-azure-fde (Ubuntu package)
linux-image-6.5.0-1024-azure (Ubuntu package)
linux-image-6.5.0-1024-gcp (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-6.5.0-1026-oracle-64k (Ubuntu package)
linux-image-6.5.0-1026-oracle (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-6.5.0-1027-oem (Ubuntu package)
linux-image-oem-22.04 (Ubuntu package)
linux-image-oem-22.04a (Ubuntu package)
linux-image-oem-22.04b (Ubuntu package)
linux-image-oem-22.04c (Ubuntu package)
linux-image-oem-22.04d (Ubuntu package)
IBM Qradar SIEM
IBM Security Guardium

Install update from vendor's website.

Linux kernel - addressed in versions 6.6.17, 6.7.5, 6.8
linux-image-6.5.0-44-generic (Ubuntu package) - addressed in versions 6.5.0-44.44, 6.5.0-44.44~22.04.1
linux-image-6.5.0-44-generic-64k (Ubuntu package) - addressed in versions 6.5.0-44.44, 6.5.0-44.44~22.04.1
linux-image-generic (Ubuntu package) - update to 6.5.0.44.44
linux-image-generic-64k (Ubuntu package) - update to 6.5.0.44.44
linux-image-generic-lpae (Ubuntu package) - update to 6.5.0.44.44
linux-image-kvm (Ubuntu package) - update to 6.5.0.44.44
linux-image-virtual-hwe-22.04 (Ubuntu package) - addressed in versions 6.5.0.44.44, 6.5.0.44.44~22.04.1
linux-image-virtual (Ubuntu package) - update to 6.5.0.44.44
linux-image-lowlatency-hwe-22.04 (Ubuntu package) - update to 6.5.0.44.44.1~22.04.1
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package) - update to 6.5.0.44.44.1~22.04.1
linux-image-6.5.0-44-lowlatency-64k (Ubuntu package) - update to 6.5.0-44.44.1~22.04.1
linux-image-6.5.0-44-lowlatency (Ubuntu package) - update to 6.5.0-44.44.1~22.04.1
linux-image-generic-hwe-22.04 (Ubuntu package) - update to 6.5.0.44.44~22.04.1
linux-image-generic-64k-hwe-22.04 (Ubuntu package) - update to 6.5.0.44.44~22.04.1
linux-image-starfive (Ubuntu package) - update to 6.5.0.1017.18~22.04.1
linux-image-6.5.0-1017-starfive (Ubuntu package) - update to 6.5.0-1017.18~22.04.1
linux-image-raspi-nolpae (Ubuntu package) - update to 6.5.0.1020.21
linux-image-raspi (Ubuntu package) - update to 6.5.0.1020.21
linux-image-6.5.0-1020-raspi (Ubuntu package) - update to 6.5.0-1020.23
linux-image-6.5.0-1023-aws (Ubuntu package) - update to 6.5.0-1023.23~22.04.1
linux-image-aws (Ubuntu package) - update to 6.5.0.1023.23~22.04.1
linux-image-6.5.0-1023-nvidia-64k (Ubuntu package) - update to 6.5.0-1023.24
linux-image-6.5.0-1023-nvidia (Ubuntu package) - update to 6.5.0-1023.24
linux-image-nvidia-hwe-22.04 (Ubuntu package) - update to 6.5.0.1023.31
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package) - update to 6.5.0.1023.31
linux-image-nvidia-64k-6.5 (Ubuntu package) - update to 6.5.0.1023.31
linux-image-nvidia-6.5 (Ubuntu package) - update to 6.5.0.1023.31
linux-image-azure (Ubuntu package) - update to 6.5.0.1024.25~22.04.1
linux-image-azure-fde (Ubuntu package) - update to 6.5.0.1024.25~22.04.1
linux-image-6.5.0-1024-azure-fde (Ubuntu package) - update to 6.5.0-1024.25~22.04.1
linux-image-6.5.0-1024-azure (Ubuntu package) - update to 6.5.0-1024.25~22.04.1
linux-image-6.5.0-1024-gcp (Ubuntu package) - addressed in versions 6.5.0-1024.26, 6.5.0-1024.26~22.04.1
linux-image-gcp (Ubuntu package) - addressed in versions 6.5.0.1024.26, 6.5.0.1024.26~22.04.1
linux-image-6.5.0-1026-oracle-64k (Ubuntu package) - update to 6.5.0-1026.26~22.04.1
linux-image-6.5.0-1026-oracle (Ubuntu package) - update to 6.5.0-1026.26~22.04.1
linux-image-oracle (Ubuntu package) - update to 6.5.0.1026.26~22.04.1
linux-image-oracle-64k (Ubuntu package) - update to 6.5.0.1026.26~22.04.1
linux-image-6.5.0-1027-oem (Ubuntu package) - update to 6.5.0-1027.28
linux-image-oem-22.04 (Ubuntu package) - update to 6.5.0.1027.29
linux-image-oem-22.04a (Ubuntu package) - update to 6.5.0.1027.29
linux-image-oem-22.04b (Ubuntu package) - update to 6.5.0.1027.29
linux-image-oem-22.04c (Ubuntu package) - update to 6.5.0.1027.29
linux-image-oem-22.04d (Ubuntu package) - update to 6.5.0.1027.29
IBM Qradar SIEM - update to 7.5.0 Update Pack 10 IF01
IBM Security Guardium - update to 12.0p30

• https://git.kernel.org/stable/c/2e150ccea13129eb048679114808eb9770443e4d
• https://git.kernel.org/stable/c/0c863cab0e9173f8b6c7bc328bee3b8625f131b5
• https://git.kernel.org/stable/c/e96fddb32931d007db12b1fce9b5e8e4c080401b
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.17
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.5
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8

• NULL pointer dereference in Linux kernel dc dcn21 driver
• Ubuntu update for linux
• Ubuntu update for linux-azure-6.5
• Ubuntu update for linux-hwe-6.5
• Ubuntu update for linux-aws-6.5
• Ubuntu update for linux-oem-6.5
• Multiple vulnerabilities in IBM QRadar SIEM
• Multiple vulnerabilities in IBM Security Guardium