CVE-2022-48740

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]

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/186edf7e368c40d06cf727a1ad14698ea67b74ad	Patch
https://git.kernel.org/stable/c/70caa32e6d81f45f0702070c0e4dfe945e92fbd7	Patch
https://git.kernel.org/stable/c/7ed9cbf7ac0d4ed86b356e1b944304ae9ee450d4	Patch
https://git.kernel.org/stable/c/f446089a268c8fc6908488e991d28a9b936293db	Patch
https://git.kernel.org/stable/c/186edf7e368c40d06cf727a1ad14698ea67b74ad	Patch
https://git.kernel.org/stable/c/70caa32e6d81f45f0702070c0e4dfe945e92fbd7	Patch
https://git.kernel.org/stable/c/7ed9cbf7ac0d4ed86b356e1b944304ae9ee450d4	Patch
https://git.kernel.org/stable/c/f446089a268c8fc6908488e991d28a9b936293db	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.17:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.17:rc2::::::

History

27 May 2025, 18:31

Type	Values Removed	Values Added
CPE		cpe:2.3:o:linux:linux_kernel:5.17:rc2:::::: cpe:2.3:o:linux:linux_kernel:5.17:rc1::::::

Information

Published : 2024-06-20 12:15

Updated : 2025-05-27 18:31

NVD link : CVE-2022-48740

Mitre link : CVE-2022-48740

CVE.ORG link : CVE-2022-48740

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-415

Double Free

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