Ubuntu: (CVE-2022-48740): linux-intel-iotg-5.15 vulnerability

Ubuntu: (CVE-2022-48740): linux-intel-iotg-5.15 vulnerability

Severity

7

CVSS

(AV:L/AC:L/Au:S/C:C/I:C/A:C)

Published

06/20/2024

Created

11/21/2024

Added

11/19/2024

Modified

01/28/2025

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]

Solution(s)

• ubuntu-upgrade-linux-intel-iotg-5-15

References

• https://attackerkb.com/topics/cve-2022-48740
• CVE - 2022-48740
• https://git.kernel.org/linus/186edf7e368c40d06cf727a1ad14698ea67b74ad
• https://git.kernel.org/stable/c/186edf7e368c40d06cf727a1ad14698ea67b74ad
• https://git.kernel.org/stable/c/70caa32e6d81f45f0702070c0e4dfe945e92fbd7
• https://git.kernel.org/stable/c/7ed9cbf7ac0d4ed86b356e1b944304ae9ee450d4
• https://git.kernel.org/stable/c/f446089a268c8fc6908488e991d28a9b936293db
• https://www.cve.org/CVERecord?id=CVE-2022-48740

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