Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: check if target buffer list is still legacy on recycle There-s a gap between when the buffer was grabbed and when it potentially gets recycled, where if the list is empty, someone could-ve upgraded it to a ring provided type. This can happen if the request is forced via io-wq. The legacy recycling is missing checking if the buffer_list still exists, and if it-s of the correct type. Add those checks.
CVSS 7.8EPSS 0.13%Risk 0.79
View source- Published
- 2026-05-08 15:16:47
- Affected versions
- unknown
- Type
- Core software
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Operating systems
- Linux