CVE-2025-39963
- Source
- https://cve.org/CVERecord?id=CVE-2025-39963
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39963.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-39963
- Downstream
- Related
- Published
- 2025-10-09T12:13:23Z
- Modified
- 2026-08-12T03:51:41Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- io_uring: fix incorrect io_kiocb reference in io_link_skb
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix incorrect io_kiocb reference in io_link_skb
In io_link_skb function, there is a bug where prev_notif is incorrectly assigned using 'nd' instead of 'prev_nd'. This causes the context validation check to compare the current notification with itself instead of comparing it with the previous notification.
Fix by using the correct prev_nd parameter when obtaining prev_notif.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39963.json" }- References
-
- https://git.kernel.org/stable/c/2c139a47eff8de24e3350dadb4c9d5e3426db826
- https://git.kernel.org/stable/c/50a98ce1ea694f1ff8e87bc2f8f84096d1736f6a
- https://git.kernel.org/stable/c/a89c34babc2e5834aa0905278f26f4dbe4b26b76
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39963.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-39963
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git