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CVE-2022-50265

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: kcm: annotate data-races around kcm->rx_wait kcm->rx_psock can be read locklessly in kcm_rfree().

Published Sep 15, 2025EPSS 0.16%

Overview

CVE-2022-50265 is a medium-severity vulnerability. It was published on September 15, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

kcm: annotate data-races around kcm->rx_wait

kcm->rx_psock can be read locklessly in kcm_rfree().

Annotate the read and writes accordingly.

syzbot reported:

BUG: KCSAN: data-race in kcm_rcv_strparser / kcm_rfree

write to 0xffff88810784e3d0 of 1 bytes by task 1823 on cpu 1:

reserve_rx_kcm net/kcm/kcmsock.c:283 [inline]

kcm_rcv_strparser+0x250/0x3a0 net/kcm/kcmsock.c:363

__strp_recv+0x64c/0xd20 net/strparser/strparser.c:301

strp_recv+0x6d/0x80 net/strparser/strparser.c:335

tcp_read_sock+0x13e/0x5a0 net/ipv4/tcp.c:1703

strp_read_sock net/strparser/strparser.c:358 [inline]

do_strp_work net/strparser/strparser.c:406 [inline]

strp_work+0xe8/0x180 net/strparser/strparser.c:415

process_one_work+0x3d3/0x720 kernel/workqueue.c:2289

worker_thread+0x618/0xa70 kernel/workqueue.c:2436

kthread+0x1a9/0x1e0 kernel/kthread.c:376

ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

read to 0xffff88810784e3d0 of 1 bytes by task 178

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/0c745b5141a45a076f1cb9772a399f7ebcb0948aRefgit.kernel.org/stable/c/2733fb2ad5bfbe6538f2f93a21f2504e3dba9d6aRefgit.kernel.org/stable/c/62086d1c4602e4f2ec07b975165afc2ed0ff1be9Refgit.kernel.org/stable/c/663682cd3192dd4f3547b7890a4391c72441001dRefgit.kernel.org/stable/c/9ae47f11493509cde707af8ecc7eee04c8b8e635Refgit.kernel.org/stable/c/dbc3a0b917c4f75292b1c0819c188e40fd3c8924Refgit.kernel.org/stable/c/e2a28807b1ceaa309164b92c38d73d12feea33dfRefgit.kernel.org/stable/c/f1f7122bb2ef056afc6f91ce4c35ab6df1207c8d

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50265?

CVE-2022-50265 is a medium-severity vulnerability. It was published on September 15, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50265?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-50265?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-50265?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50265 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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