CVE-2022-49770
Medium
Elevated severity or exploit probability.
CVSS base
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.6%
45.4th percentile
CISA KEV
Not listed
Weakness / dates
CWE-416
Published 2025-05-01 · modified 2026-08-15
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2025-05-01 — Published (NVD)
- 2026-08-15 — Last modified (NVD)
Description
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
References
- https://git.kernel.org/stable/c/044bc6d3c2c0e9090b0841e7b723875756534b45
- https://git.kernel.org/stable/c/274e4c79a3a2a24fba7cfe0e41113f1138785c37
- https://git.kernel.org/stable/c/2f6e2de3a5289004650118b61f138fe7c28e1905
- https://git.kernel.org/stable/c/51884d153f7ec85e18d607b2467820a90e0f4359
- https://git.kernel.org/stable/c/cb7495fe957526555782ce0723f79ce92a6db22e
- https://git.kernel.org/stable/c/fd879c83e87735ab8f00ef7755752cf0cbae24b2