CVE-2024-43855 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer DereferenceCWE-833 — Deadlock26 documents7 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 96.88%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
12
LinuxLinux KernelDebian Linux+9 more
Timeline
PublishedAug 17
Latest updateDec 12

Description

In the Linux kernel, the following vulnerability has been resolved: md: fix deadlock between mddev_suspend and flush bio Deadlock occurs when mddev is being suspended while some flush bio is in progress. It is a complex issue. T1. the first flush is at the ending stage, it clears 'mddev->flush_bio' and tries to submit data, but is blocked because mddev is suspended by T4. T2. the second flush sets 'mddev->flush_bio', and attempts to queue md_submit_flush_data(), which is already running (T1) …

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 Packages14 packages

▶NVDlinux/linux_kernel6.2 — 6.6.44+2
▶Debianlinux/linux_kernel< 6.1.106-1+2
▶Ubuntulinux/linux_kernel< 6.8.0-48.48

Patches

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

🔴Vulnerability Details

12
OSV
linux-gkeop vulnerabilities↗2024-12-12
▶
OSV
linux-lowlatency, linux-lowlatency-hwe-6.8 vulnerabilities↗2024-11-19
▶
OSV
linux-gke vulnerabilities↗2024-11-15
▶
OSV
linux-raspi vulnerabilities↗2024-11-14
▶
OSV
linux-oem-6.8 vulnerabilities↗2024-11-13
▶

📋Vendor Advisories

13
Ubuntu
Linux kernel (GKE) vulnerabilities↗2024-12-12
▶
Ubuntu
Linux kernel (Low Latency) vulnerabilities↗2024-11-19
▶
Ubuntu
Linux kernel vulnerabilities↗2024-11-15
▶
Ubuntu
Linux kernel vulnerabilities↗2024-11-14
▶
Ubuntu
Linux kernel vulnerabilities↗2024-11-13
▶
CVE-2024-43855 — NULL Pointer Dereference in Linux | cvebase