ceph: avoid putting the realm twice when decoding snaps fails
Priority MEDIUM 43CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.00582 48th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.19.268, 5.4.226, 5.10.157 +3Red Hat: 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 4.0 and later | 4.19.268, 5.4.226, 5.10.157, 5.15.81, 6.0.10, 6.1 | Patch available | CNA |
- Linux VendorLinux Affected 4.0 and later Fixed in 4.19.268, 5.4.226, 5.10.157, 5.15.81, 6.0.10, 6.1 Patch available CNA
CPE configurations NVD · 13
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 2.6.35 to before 4.19.268; 4.20 to before 5.4.226; 5.5 to before 5.10.157; 5.11 to before 5.15.81; 5.16 to before 6.0.10 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.34:-:*:*:*:*:*:* | 2.6.34 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc2:*:*:*:*:*:* | 2.6.34 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc3:*:*:*:*:*:* | 2.6.34 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc4:*:*:*:*:*:* | 2.6.34 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc5:*:*:*:*:*:* | 2.6.34 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc6:*:*:*:*:*:* | 2.6.34 rc6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc7:*:*:*:*:*:* | 2.6.34 rc7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* | 6.1 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* | 6.1 rc2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.35 to before 4.19.268; 4.20 to before 5.4.226; 5.5 to before 5.10.157; 5.11 to before 5.15.81; 5.16 to before 6.0.10 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.34:-:*:*:*:*:*:* Versions 2.6.34 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.34:rc2:*:*:*:*:*:* Versions 2.6.34 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.34:rc3:*:*:*:*:*:* Versions 2.6.34 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.34:rc4:*:*:*:*:*:* Versions 2.6.34 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.34:rc5:*:*:*:*:*:* Versions 2.6.34 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.34:rc6:*:*:*:*:*:* Versions 2.6.34 rc6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.34:rc7:*:*:*:*:*:* Versions 2.6.34 rc7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* Versions 6.1 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* Versions 6.1 rc2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.19.268, 5.4.226, 5.10.157, 5.15.81, 6.0.10, 6.1
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
Not affected: 4 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2022-49770
- 2026-10-03 Alias added: GHSA-vc2j-428r-9px5
References
Patch 6
- https://git.kernel.org/stable/c/274e4c79a3a2a24fba7cfe0e41113f1138785c37
- https://git.kernel.org/stable/c/cb7495fe957526555782ce0723f79ce92a6db22e
- https://git.kernel.org/stable/c/044bc6d3c2c0e9090b0841e7b723875756534b45
- https://git.kernel.org/stable/c/2f6e2de3a5289004650118b61f138fe7c28e1905
- https://git.kernel.org/stable/c/fd879c83e87735ab8f00ef7755752cf0cbae24b2
- https://git.kernel.org/stable/c/51884d153f7ec85e18d607b2467820a90e0f4359
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- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
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- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2022-49770 · CVE Program
- CVE-2022-49770 · NVD
- FIRST EPSS
- GHSA-vc2j-428r-9px5 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-49770 · Red Hat security data · CC BY 4.0
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