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CVE-2022-48740

HIGH

7.8

Description

In the Linux kernel, the following vulnerability has been resolved: selinux: fix double free of cond_list on error paths On error path from cond_read_list() and duplicate_policydb_cond_list() the cond_list_destroy() gets called a second time in caller functions, resulting in NULL pointer deref. Fix this by resetting the cond_list_len to 0 in cond_list_destroy(), making subsequent calls a noop. Also consistently reset the cond_list pointer to NULL after freeing. [PM: fix line lengths in the description]

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

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

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published6/20/2024

Last Modified5/27/2025

Sourcenvd

Honeypot Sightings0

Affected Products

linux:linux_kernel

Weaknesses (CWE)

CWE-415

References

https://git.kernel.org/stable/c/186edf7e368c40d06cf727a1ad14698ea67b74ad(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/70caa32e6d81f45f0702070c0e4dfe945e92fbd7(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/7ed9cbf7ac0d4ed86b356e1b944304ae9ee450d4(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/f446089a268c8fc6908488e991d28a9b936293db(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/186edf7e368c40d06cf727a1ad14698ea67b74ad(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/stable/c/70caa32e6d81f45f0702070c0e4dfe945e92fbd7(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/stable/c/7ed9cbf7ac0d4ed86b356e1b944304ae9ee450d4(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/stable/c/f446089a268c8fc6908488e991d28a9b936293db(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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