CVE-2021-47307

MediumCVSS 5.5/10Last modified Aug 4, 2026

Description

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

cifs: prevent NULL deref in cifs_compose_mount_options()

The optional @ref parameter might contain an NULL node_name, so prevent dereferencing it in cifs_compose_mount_options().

Addresses-Coverity: 1476408 ("Explicit null dereferenced")

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= 2c55608f28444c3f33b10312881384c470ceed56, < f7d1fa65e74263d11f90ddd33b4d4cd905a93759; >= 2c55608f28444c3f33b10312881384c470ceed56, < e58c162789becede894d3e94c0ce6695a2ef5796; >= 2c55608f28444c3f33b10312881384c470ceed56, < ae3d181f4e912f51af7776ea165f199b16fc165d; >= 2c55608f28444c3f33b10312881384c470ceed56, < 03313d1c3a2f086bb60920607ab79ac8f8578306
LinuxLinux2.6.28

References

Timeline

Published
May 21, 2024
Last modified
Aug 4, 2026
NVD status
Modified

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CVE-2021-47307: Medium severity, CVSS 5.5 | Vulnix