ksmbd: fix possible refcount leak in smb2_open()
Priority LOW 24Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix possible refcount leak in smb2_open() Reference count of acls will leak when memory allocation fails. Fix this by adding the missing posix_acl_release().
Why it matters now
EPSS 0.00201 10th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.15.105, 6.1.22, 6.2.9 +1
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 | 5.15 and later | 5.15.105, 6.1.22, 6.2.9, 6.3 | Patch available | CNA |
- Linux VendorLinux Affected 5.15 and later Fixed in 5.15.105, 6.1.22, 6.2.9, 6.3 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.15 to before 5.15.105; 5.16 to before 6.1.22; 6.2 to before 6.2.9 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:* | 6.3 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:* | 6.3 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:* | 6.3 rc3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15 to before 5.15.105; 5.16 to before 6.1.22; 6.2 to before 6.2.9 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:* Versions 6.3 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:* Versions 6.3 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:* Versions 6.3 rc3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.105, 6.1.22, 6.2.9, 6.3
Vendor assessments
Red Hat
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-53061
- 2026-10-03 Alias added: GHSA-chpc-57m9-7j2g
References
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-2023-53061 · CVE Program
- CVE-2023-53061 · NVD
- FIRST EPSS
- GHSA-chpc-57m9-7j2g · GitHub Advisory Database · CC BY 4.0
- CVE-2023-53061 · 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