CVE-2022-49957

medium

Description

In the Linux kernel, the following vulnerability has been resolved: kcm: fix strp_init() order and cleanup strp_init() is called just a few lines above this csk->sk_user_data check, it also initializes strp->work etc., therefore, it is unnecessary to call strp_done() to cancel the freshly initialized work. And if sk_user_data is already used by KCM, psock->strp should not be touched, particularly strp->work state, so we need to move strp_init() after the csk->sk_user_data check. This also makes a lockdep warning reported by syzbot go away.

References

https://git.kernel.org/stable/c/f865976baa85915c7672f351b74d5974b93215f6

https://git.kernel.org/stable/c/a8a0c321319ad64a5427d6172cd9c23b4d6ca1e8

https://git.kernel.org/stable/c/8fc29ff3910f3af08a7c40a75d436b5720efe2bf

https://git.kernel.org/stable/c/55fb8c3baa8071c5d533a9ad48624e44e2a04ef5

https://git.kernel.org/stable/c/473f394953216614087f4179e55cdf0cf616a13b

https://git.kernel.org/stable/c/1b6666964ca1de93a7bf06e122bcf3616dbd33a9

https://git.kernel.org/stable/c/0946ff31d1a8778787bf6708beb20f38715267cc

Details

Source: Mitre, NVD

Published: 2025-06-18

Updated: 2025-06-18

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00024