CVE-2024-40981 — Improper Locking in Linux

CWE-667 — Improper LockingCWE-833 — Deadlock56 documents7 sources
Severity
5.5MEDIUMNVD
OSV7.8OSV5.3
EPSS
0.0%
top 99.92%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
LinuxLinux KernelDebian Linux+1 more
Timeline
PublishedJul 12
Latest updateAug 14

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: bypass empty buckets in batadv_purge_orig_ref() Many syzbot reports are pointing to soft lockups in batadv_purge_orig_ref() [1] Root cause is unknown, but we can avoid spending too much time there and perhaps get more interesting reports. [1] watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621] Modules linked in: irq event stamp: 6182794 hardirqs last enabled at (6182793): [] __local_bh_enable_ip…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages6 packages

▶NVDlinux/linux_kernel4.20 — 5.4.279+6
▶Debianlinux/linux_kernel< 5.10.221-1+3
▶Ubuntulinux/linux_kernel< 5.4.0-195.215+4
▶CVEListV5linux/linuxfb778ea173fcd58b8fc3d75c674f07fab187b55f — 79636f636126775436a11ee9cf00a9253a33ac11+8
▶debiandebian/linux< linux 6.1.99-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

27
OSV
linux-lts-xenial vulnerabilities↗2025-03-13
▶
OSV
linux-azure, linux-azure-4.15 vulnerabilities↗2025-03-13
▶
OSV
linux-aws, linux-aws-hwe, linux-gcp, linux-gcp-4.15, linux-kvm, linux-oracle vulnerabilities↗2025-03-11
▶
OSV
linux-kvm vulnerabilities↗2025-03-11
▶
OSV
linux, linux-hwe vulnerabilities↗2025-03-11
▶

📋Vendor Advisories

28
CISA ICS
Siemens Third-Party Components in SINEC OS↗2025-08-14
▶
Ubuntu
Linux kernel vulnerabilities↗2025-03-13
▶
Ubuntu
Linux kernel vulnerabilities↗2025-03-13
▶
Ubuntu
Linux kernel vulnerabilities↗2025-03-11
▶
Ubuntu
Linux kernel vulnerabilities↗2025-03-11
▶