VDB
DEBIAN-CVE-2025-21836
DEBIAN-CVE-2025-21836
PUBLISHED
CVSS 5.5 MEDIUM
In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: reallocate buf lists on upgrade IORING_REGISTER_PBUF_RING can reuse an old struct io_buffer_list if it was created for legacy selected buffer and has been emptied. It violates the requirement that most of the field should stay stable after publish. Always reallocate it instead.
Risk Scores
CVSS v3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | linux | 0, 0 |
| Debian:12 | linux | 0, 6.1.106-1, 6.1.106-2 |
| Debian:13 | linux | 0, 0 |
Timeline
- Mar 7, 2025 CVE Published
- Apr 28, 2026 CVE Updated