io_uring: fix io_req_prep_async with provided buffers
Priority LOW 34Published · 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: fix io_req_prep_async with provided buffers io_req_prep_async() can import provided buffers, commit the ring state by giving up on that before, it'll be reimported later if needed.
Why it matters now
EPSS 0.00284 21st percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.129, 6.6.78, 6.12.14 +2Red Hat: 2 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 | 5.19 and later | 6.1.129, 6.6.78, 6.12.14, 6.13.3, 6.14 | Patch available | CNA |
- Linux VendorLinux Affected 5.19 and later Fixed in 6.1.129, 6.6.78, 6.12.14, 6.13.3, 6.14 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.19 to before 6.1.129; 6.2 to before 6.6.78; 6.7 to before 6.12.14; 6.13 to before 6.13.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.19 to before 6.1.129; 6.2 to before 6.6.78; 6.7 to before 6.12.14; 6.13 to before 6.13.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.129, 6.6.78, 6.12.14, 6.13.3, 6.14
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 planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Out of support scope |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2025-40364
- 2026-10-03 Alias added: GHSA-24g7-95rm-cqcc
References
Patch 7
- https://git.kernel.org/stable/c/233b210a678bddf8b49b02a070074a52b87e6d43
- https://git.kernel.org/stable/c/a1b17713b32c75a90132ea2f92b1257f3bbc20f3
- https://git.kernel.org/stable/c/b86f1d51731e621e83305dc9564ae14c9ef752bf
- https://git.kernel.org/stable/c/a94592ec30ff67dc36c424327f1e0a9ceeeb9bd3
- https://git.kernel.org/stable/c/35ae7910c349fb3c60439992e2e0e79061e95382
- https://git.kernel.org/stable/c/f0ef94553868d07c1b14d7743a7e2553e5a831a3
- https://git.kernel.org/stable/c/d63b0e8a628e62ca85a0f7915230186bb92f8bb4
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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-2025-40364 · CVE Program
- CVE-2025-40364 · NVD
- FIRST EPSS
- GHSA-24g7-95rm-cqcc · GitHub Advisory Database · CC BY 4.0
- CVE-2025-40364 · 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