CVE-2022-49770: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.6% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid putting the realm twice when decoding snaps fails When decoding the snaps fails it maybe leaving the 'first_realm' and 'realm' pointing to the same snaprealm memory. And then it'll put it twice and could cause random use-after-free, BUG_ON, etc issues.

Affected products

• Linux Linux Kernel: from 2.6.35, before 4.19.268 (fixed in 4.19.268); from 4.20, before 5.4.226 (fixed in 5.4.226); from 5.5, before 5.10.157 (fixed in 5.10.157); from 5.11, before 5.15.81 (fixed in 5.15.81); from 5.16, before 6.0.10 (fixed in 6.0.10); version 2.6.34 only; …

Published 2025-05-01. Last modified 2026-08-15.