CVE-2022-49770 Details
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.
A vulnerability in the Linux kernel's Ceph file system component has been addressed. The issue arose during the decoding of snapshots, where a failure could result in the 'first_realm' and 'realm' variables pointing to the same snapshot realm memory. This overlap could cause the realm to be processed twice, potentially leading to random use-after-free errors, triggering a BUG_ON condition, and other related problems.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/044bc6d3c2c0e9090b0841e7b723875756534b45 | kernel.org | Patch |
| https://git.kernel.org/stable/c/274e4c79a3a2a24fba7cfe0e41113f1138785c37 | kernel.org | Patch |
| https://git.kernel.org/stable/c/2f6e2de3a5289004650118b61f138fe7c28e1905 | kernel.org | Patch |
| https://git.kernel.org/stable/c/51884d153f7ec85e18d607b2467820a90e0f4359 | kernel.org | Patch |
| https://git.kernel.org/stable/c/cb7495fe957526555782ce0723f79ce92a6db22e | kernel.org | Patch |
| https://git.kernel.org/stable/c/fd879c83e87735ab8f00ef7755752cf0cbae24b2 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.35, < 4.19.268 >= 4.20, < 5.4.226 >= 5.5, < 5.10.157 >= 5.11, < 5.15.81 >= 5.16, < 6.0.10 2.6.34 - 2.6.34 rc2 2.6.34 rc3 2.6.34 rc4 2.6.34 rc5 2.6.34 rc6 2.6.34 rc7 6.1 rc1 6.1 rc2 6.1 rc3 6.1 rc4 6.1 rc5 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 15, 2026 | CVE Modified | kernel.org |
| Aug 4, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Nov 6, 2025 | Initial Analysis | [email protected] |
| May 1, 2025 | New CVE Received | kernel.org |