io_uring/af_unix: disable sending io_uring over sockets
Priority LOW 36Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: io_uring/af_unix: disable sending io_uring over sockets File reference cycles have caused lots of problems for io_uring in the past, and it still doesn't work exactly right and races with unix_stream_read_generic(). The safest fix would be to completely disallow sending io_uring files via sockets via SCM_RIGHT, so there are no possible cycles invloving registered files and thus rendering SCM accounting on the io_uring side unnecessary.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00892 59th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.4.264, 5.10.204, 5.15.143 +5Red Hat: 2 without a fix
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 | 5.4.220 to before 5.4.264; 5.10.150 to before 5.10.204; 5.15.75 to before 5.15.143; 5.19.17 to before 5.20; 6.0.3 to before 6.1 | 5.4.264, 5.10.204, 5.15.143, 5.20, 6.1 | Patch available | CNA |
| Linux | Linux | 6.1 and later | 5.4.264, 5.10.204, 5.15.143, 6.1.68, 6.6.7, 6.7 | Patch available | CNA |
- Linux VendorLinux Affected 5.4.220 to before 5.4.264; 5.10.150 to before 5.10.204; 5.15.75 to before 5.15.143; 5.19.17 to before 5.20; 6.0.3 to before 6.1 Fixed in 5.4.264, 5.10.204, 5.15.143, 5.20, 6.1 Patch available CNA
- Linux VendorLinux Affected 6.1 and later Fixed in 5.4.264, 5.10.204, 5.15.143, 6.1.68, 6.6.7, 6.7 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.4.220 to before 5.4.264; 5.10.150 to before 5.10.204; 5.15.75 to before 5.15.143; 5.19.17 to before 5.20; 6.0.3 to before 6.1.68; 6.2 to before 6.6.7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:* | 6.7 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:* | 6.7 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.7:rc3:*:*:*:*:*:* | 6.7 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:* | 6.7 rc4 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.4.220 to before 5.4.264; 5.10.150 to before 5.10.204; 5.15.75 to before 5.15.143; 5.19.17 to before 5.20; 6.0.3 to before 6.1.68; 6.2 to before 6.6.7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:* Versions 6.7 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:* Versions 6.7 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.7:rc3:*:*:*:*:*:* Versions 6.7 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:* Versions 6.7 rc4 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.264, 5.10.204, 5.15.143, 5.20, 6.1
- Fix · CNA Linux (Linux) Fixed in 5.4.264, 5.10.204, 5.15.143, 6.1.68, 6.6.7, 6.7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
Not affected: 2 products
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-52654
- 2026-10-03 Alias added: GHSA-p435-prrh-xm57
References
Patch 6
- https://git.kernel.org/stable/c/18824f592aad4124d79751bbc1500ea86ac3ff29
- https://git.kernel.org/stable/c/3fe1ea5f921bf5b71cbfdc4469fb96c05936610e
- https://git.kernel.org/stable/c/bcedd497b3b4a0be56f3adf7c7542720eced0792
- https://git.kernel.org/stable/c/f2f57f51b53be153a522300454ddb3887722fb2c
- https://git.kernel.org/stable/c/5a33d385eb36991a91e3dddb189d8679e2aac2be
- https://git.kernel.org/stable/c/705318a99a138c29a512a72c3e0043b3cd7f55f4
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-2023-52654 · CVE Program
- CVE-2023-52654 · NVD
- FIRST EPSS
- GHSA-p435-prrh-xm57 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-52654 · Red Hat security data · CC BY 4.0
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