ceph: fix a buffer leak in __ceph_setxattr()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: ceph: fix a buffer leak in __ceph_setxattr() The old_blob in __ceph_setxattr() can store ci->i_xattrs.prealloc_blob value during the retry. However, it is never called the ceph_buffer_put() for the old_blob object. This patch fixes the issue of the buffer leak.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 4.4.192 to before 4.5; 4.9.192 to before 4.10; 4.14.143 to before 4.15; 4.19.72 to before 4.20; 5.2.14 to before 5.3 | 4.5, 4.10, 4.15, 4.20, 5.3 | Patch available | CNA |
| Linux | Linux | 5.3 and later | 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 | Patch available | CNA |
- Linux VendorLinux Affected 4.4.192 to before 4.5; 4.9.192 to before 4.10; 4.14.143 to before 4.15; 4.19.72 to before 4.20; 5.2.14 to before 5.3 Fixed in 4.5, 4.10, 4.15, 4.20, 5.3 Patch available CNA
- Linux VendorLinux Affected 5.3 and later Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.4.192 to before 4.5; 4.9.192 to before 4.10; 4.14.143 to before 4.15; 4.19.72 to before 4.20; 5.2.14 to before 5.3; 5.3.1 to before 5.10.258; 5.11 to before 5.15.209; 5.16 to before 6.1.175; 6.2 to before 6.6.141; 6.7 to before 6.12.91; 6.13 to before 6.18.33; 6.19 to before 7.0.10 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.3:-:*:*:*:*:*:* | 5.3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.3:rc6:*:*:*:*:*:* | 5.3 rc6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.3:rc7:*:*:*:*:*:* | 5.3 rc7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.3:rc8:*:*:*:*:*:* | 5.3 rc8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | 7.1 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | 7.1 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | 7.1 rc3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.4.192 to before 4.5; 4.9.192 to before 4.10; 4.14.143 to before 4.15; 4.19.72 to before 4.20; 5.2.14 to before 5.3; 5.3.1 to before 5.10.258; 5.11 to before 5.15.209; 5.16 to before 6.1.175; 6.2 to before 6.6.141; 6.7 to before 6.12.91; 6.13 to before 6.18.33; 6.19 to before 7.0.10 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.3:-:*:*:*:*:*:* Versions 5.3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.3:rc6:*:*:*:*:*:* Versions 5.3 rc6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.3:rc7:*:*:*:*:*:* Versions 5.3 rc7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.3:rc8:*:*:*:*:*:* Versions 5.3 rc8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* Versions 7.1 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* Versions 7.1 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* Versions 7.1 rc3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.5, 4.10, 4.15, 4.20, 5.3
- Fix · CNA Linux (Linux) Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2026-52962
- 2026-10-03 Alias added: GHSA-2p2x-px9w-6j23
- 2026-11-06 CISA SSVC decision points changed
References
Patch 8
- https://git.kernel.org/stable/c/521e5aba857fd267624892c8dd6295f22ce0267e
- https://git.kernel.org/stable/c/d0cb994605c84a159c1d00d72cdc8583c321ef95
- https://git.kernel.org/stable/c/ecf94823c5c6a20790bb76ed2816822b0beb0c22
- https://git.kernel.org/stable/c/4bfdcefdaa6092a06cacd59389c7756b36e6de8c
- https://git.kernel.org/stable/c/7d3e8d2d648d5f0df29b4710246680f47695fe94
- https://git.kernel.org/stable/c/3fa13ceefbc5f36131110342743994cb3de80637
- https://git.kernel.org/stable/c/bc7abce4460e490dcb579eec770f175b150b685f
- https://git.kernel.org/stable/c/5d3cc36b4e77a27ce7b686b7c59c7072bcb3fa8e
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- 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
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- 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-2026-52962 · CVE Program
- CVE-2026-52962 · NVD
- FIRST EPSS
- GHSA-2p2x-px9w-6j23 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-52962 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences