CVE-2022-49768: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: 9p: trans_fd/p9_conn_cancel: drop client lock earlier syzbot reported a double-lock here and we no longer need this lock after requests have been moved off to local list: just drop the lock earlier.

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CVSS v3.1 Score

5.5

MEDIUM

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

Weakness Type (CWE)

CWE-667 CWE-667

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.9.127 — 4.9.334
linux	linux_kernel	4.14.70 — 4.14.300
linux	linux_kernel	4.18.8 — 4.19.267
linux	linux_kernel	4.20 — 5.4.225
linux	linux_kernel	5.5 — 5.10.156
linux	linux_kernel	5.11 — 5.15.80
linux	linux_kernel	5.16 — 6.0.10

References

Advisories & Patches

https://git.kernel.org/stable/c/52f1c45dde9136f964d63a77d19826c8a74e2c7f https://git.kernel.org/stable/c/612c977f5d481f551d03d83d0aef588845c1300c https://git.kernel.org/stable/c/82825dbf393f7c7979d462f9609a15bde8092b3f https://git.kernel.org/stable/c/96760723aae1b45f733f702abb4333137143909f https://git.kernel.org/stable/c/a4f1a01b2e81378fce9ca528d4d8a049e4b58fcd https://git.kernel.org/stable/c/e3031280fe4eaf61a09e60823331f81f321be8e1 https://git.kernel.org/stable/c/f14858bc77c567e089965962877ee726ffad0556 https://git.kernel.org/stable/c/fec1406f5e7ab20b71f6d231792b0040e3300aaf

Frequently Asked Questions

What is CVE-2022-49768? +

In the Linux kernel, the following vulnerability has been resolved: 9p: trans_fd/p9_conn_cancel: drop client lock earlier syzbot reported a double-lock here and we no longer need this lock after requests have been moved off to local list: just drop the lock earlier. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49768? +

CVE-2022-49768 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2022-49768? +

CVE-2022-49768 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-49768? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2022-49768