Security tracker / CVE-2025-39822

CVE-2025-39822

io_uring/kbuf: fix signedness in this_len calculation

References

• Debian security tracker
• cve.org

Notes

 carnil> Introduced in ae98dbf43d75 ("io_uring/kbuf: add support for incremental buffer
 carnil> consumption"). Vulnerable versions: 6.12.

Bugs

Status

Branch	Status
upstream	released (6.17-rc4) [c64eff368ac676e8540344d27a3de47e0ad90d21]
6.18-upstream-stable	N/A "Fixed before branching point"
6.17-upstream-stable	N/A "Fixed before branching point"
6.16-upstream-stable	released (6.16.5) [f4f411c068402c370c4f9a9d4950a97af97bbbb1]
6.12-upstream-stable	needed
6.6-upstream-stable	N/A "Vulnerable code not present"
6.1-upstream-stable	N/A "Vulnerable code not present"
5.10-upstream-stable	N/A "Vulnerable code not present"
sid	released (6.16.5-1)
6.12-trixie-security	needed
6.1-bookworm-security	N/A "Vulnerable code not present"
5.10-bullseye-security	N/A "Vulnerable code not present"