CVE-2022-50381 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer DereferenceCWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 97.89%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 18

Description

In the Linux kernel, the following vulnerability has been resolved: md: fix a crash in mempool_free There's a crash in mempool_free when running the lvm test shell/lvchange-rebuild-raid.sh. The reason for the crash is this: * super_written calls atomic_dec_and_test(&mddev->pending_writes) and wake_up(&mddev->sb_wait). Then it calls rdev_dec_pending(rdev, mddev) and bio_put(bio). * so, the process that waited on sb_wait and that is woken up is racing with bio_put(bio). * if the process wins th…

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 Packages4 packages

▶NVDlinux/linux_kernel4.10 — 4.14.303+7
▶Debianlinux/linux_kernel< 5.10.178-1+3
▶CVEListV5linux/linuxf8b58edf3acf0dcc186b8330939000ecf709368a — 732cd66ec19a17f2b9183d7d5b7bdb9c39b0776e+9
▶debiandebian/linux< linux 6.1.4-1 (bookworm)

Patches

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

🔴Vulnerability Details

2
GHSA
GHSA-qr3p-w2mh-mg9q: In the Linux kernel, the following vulnerability has been resolved: md: fix a crash in mempool_free There's a crash in mempool_free when running the↗2025-09-18
▶
OSV
CVE-2022-50381: In the Linux kernel, the following vulnerability has been resolved: md: fix a crash in mempool_free There's a crash in mempool_free when running the l↗2025-09-18
▶

📋Vendor Advisories

2
Red Hat
kernel: md: fix a crash in mempool_free↗2025-09-18
▶
Debian
CVE-2022-50381: linux - In the Linux kernel, the following vulnerability has been resolved: md: fix a c...↗2022
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CVE-2022-50381 — NULL Pointer Dereference in Linux | cvebase