🛡️ CVE-2022-49376 — kernel

🟡 CVSS 5.5 — Medium ✅ No Known Exploit NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

scsi: sd: Fix potential NULL pointer dereference

In the Linux kernel, the following vulnerability has been resolved:

scsi: sd: Fix potential NULL pointer dereference

If sd_probe() sees an early error before sdkp->device is initialized,

sd_zbc_release_disk() is called. This causes a NULL pointer dereference

when sd_is_zoned() is called inside that function. Avoid this by removing

the call to sd_zbc_release_disk() in sd_probe() error path.

This change is safe and does not result in zone information memory leakage

because the zone information for a zoned disk is allocated only when

sd_revalidate_disk() is called, at which point sdkp->disk_dev is fully set,

resulting in sd_disk_release() being called when needed to cleanup a disk

zone information using sd_zbc_release_disk().

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

CVE-2022-49376 is recorded against 2 packages.

  • kernel (from 5.18.0 up to 5.18.4)
  • linux-kernel (from 5.18 up to 5.18.4)

Timeline and source

Published on 26 February 2025 and last revised on 15 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2022-49376 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-02-26
Updated 2026-08-12
Modified 2026-07-15

Affected Packages

Software From version Fixed in
kernel 5.18.0 5.18.4
linux-kernel 5.18 5.18.4

Similar Threats

Vulnerability Monitoring

Track new vulnerabilities in kernel

CVE-2022-49376 is rated CVSS 5.5 Medium. BotEraser monitors your WordPress installation and notifies you when software you use appears in our vulnerability database.

Set Up Free Alerts →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.