Use-after-free in Linux kernel - CVE-2024-50217

Vulnerability identifier: #VU100165

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-50217

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the btrfs_close_one_device() function in fs/btrfs/volumes.c. A local user can escalate privileges on the system.

Linux kernel
openEuler
Ubuntu
bpftool
kernel
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-headers
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
linux-image-virtual-hwe-24.04 (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-6.11.0-18-generic-64k (Ubuntu package)
linux-image-6.11.0-18-generic (Ubuntu package)
linux-image-6.11.0-1005-realtime (Ubuntu package)
linux-image-realtime (Ubuntu package)
linux-image-realtime-hwe-24.04 (Ubuntu package)
linux-image-6.11.0-1008-raspi (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-6.11.0-1009-azure (Ubuntu package)
linux-image-6.11.0-1009-azure-fde (Ubuntu package)
linux-image-6.11.0-1009-gcp (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-6.11.0-1009-aws (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-6.11.0-1010-lowlatency-64k (Ubuntu package)
linux-image-6.11.0-1010-lowlatency (Ubuntu package)
linux-image-6.11.0-1011-oracle-64k (Ubuntu package)
linux-image-6.11.0-1011-oracle (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-6.11.0-1015-oem (Ubuntu package)
linux-image-oem-24.04b (Ubuntu package)

Install update from vendor's website.

Linux kernel - addressed in versions 6.11.7, 6.12
bpftool - update to 6.6.0-57.0.0.59
kernel - update to 6.6.0-57.0.0.59
python3-perf-debuginfo - update to 6.6.0-57.0.0.59
python3-perf - update to 6.6.0-57.0.0.59
perf-debuginfo - update to 6.6.0-57.0.0.59
perf - update to 6.6.0-57.0.0.59
kernel-tools-devel - update to 6.6.0-57.0.0.59
kernel-tools-debuginfo - update to 6.6.0-57.0.0.59
kernel-tools - update to 6.6.0-57.0.0.59
kernel-source - update to 6.6.0-57.0.0.59
kernel-headers - update to 6.6.0-57.0.0.59
kernel-devel - update to 6.6.0-57.0.0.59
kernel-debugsource - update to 6.6.0-57.0.0.59
kernel-debuginfo - update to 6.6.0-57.0.0.59
bpftool-debuginfo - update to 6.6.0-57.0.0.59
linux-image-virtual-hwe-24.04 (Ubuntu package) - update to 6.11.0-18.18
linux-image-virtual (Ubuntu package) - update to 6.11.0-18.18
linux-image-oem-24.04a (Ubuntu package) - update to 6.11.0-18.18
linux-image-oem-24.04 (Ubuntu package) - update to 6.11.0-18.18
linux-image-generic (Ubuntu package) - update to 6.11.0-18.18
linux-image-generic-hwe-24.04 (Ubuntu package) - update to 6.11.0-18.18
linux-image-generic-64k (Ubuntu package) - update to 6.11.0-18.18
linux-image-generic-64k-hwe-24.04 (Ubuntu package) - update to 6.11.0-18.18
linux-image-6.11.0-18-generic-64k (Ubuntu package) - update to 6.11.0-18.18
linux-image-6.11.0-18-generic (Ubuntu package) - update to 6.11.0-18.18
linux-image-6.11.0-1005-realtime (Ubuntu package) - update to 6.11.0-1005.5
linux-image-realtime (Ubuntu package) - update to 6.11.0-1005.5
linux-image-realtime-hwe-24.04 (Ubuntu package) - update to 6.11.0-1005.5
linux-image-6.11.0-1008-raspi (Ubuntu package) - update to 6.11.0-1008.8
linux-image-raspi (Ubuntu package) - update to 6.11.0-1008.8
linux-image-6.11.0-1009-azure (Ubuntu package) - update to 6.11.0-1009.9
linux-image-6.11.0-1009-azure-fde (Ubuntu package) - update to 6.11.0-1009.9
linux-image-6.11.0-1009-gcp (Ubuntu package) - update to 6.11.0-1009.9
linux-image-gcp (Ubuntu package) - update to 6.11.0-1009.9
linux-image-azure-fde (Ubuntu package) - update to 6.11.0-1009.9
linux-image-azure (Ubuntu package) - update to 6.11.0-1009.9
linux-image-6.11.0-1009-aws (Ubuntu package) - update to 6.11.0-1009.10
linux-image-aws (Ubuntu package) - update to 6.11.0-1009.10
linux-image-lowlatency-64k (Ubuntu package) - update to 6.11.0-1010.11
linux-image-lowlatency (Ubuntu package) - update to 6.11.0-1010.11
linux-image-6.11.0-1010-lowlatency-64k (Ubuntu package) - update to 6.11.0-1010.11
linux-image-6.11.0-1010-lowlatency (Ubuntu package) - update to 6.11.0-1010.11
linux-image-6.11.0-1011-oracle-64k (Ubuntu package) - update to 6.11.0-1011.12
linux-image-6.11.0-1011-oracle (Ubuntu package) - update to 6.11.0-1011.12
linux-image-oracle (Ubuntu package) - update to 6.11.0-1011.12
linux-image-oracle-64k (Ubuntu package) - update to 6.11.0-1011.12
linux-image-6.11.0-1015-oem (Ubuntu package) - update to 6.11.0-1015.15
linux-image-oem-24.04b (Ubuntu package) - update to 6.11.0-1015.15

• https://git.kernel.org/stable/c/47a83f8df39545f3f552bb6a1b6d9c30e37621dd
• https://git.kernel.org/stable/c/aec8e6bf839101784f3ef037dcdb9432c3f32343
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.7
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12

• Use-after-free in Linux kernel btrfs
• openEuler 24.03 LTS update for kernel
• Ubuntu update for linux
• Ubuntu update for linux-aws
• Ubuntu update for linux-oem-6.11