Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: don't stash io_uring encoded data across -EAGAIN Returning -EAGAIN while leaving btrfs_uring_encoded_data in the cmd PDU leaks if the request is cancelled or the ring exits before reissue. io_uring does not free driver PDU allocations on cleanup. Write: io_queue_sqe() always issues with IO_URING_F_NONBLOCK first, so return -EAGAIN before allocating and free data on every exit. Read: free on nowait -EAGAIN too; only -EIOCBQUEUED keeps the allocation for btrfs_uring_read_finished().
References
- https://git.kernel.org/stable/c/4d9c1e0a7fb2cfb1cc924acafc194d2c15c3e83e
- https://git.kernel.org/stable/c/51562a8cb11628d3a5e105b4c347ec5473e5745f
FAQ
What is CVE-2026-98960?
CVE-2026-98960 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: btrfs: don't stash io_uring encoded data across -EAGAIN Returning -EAGAIN while leaving btrfs_uring_encoded_data in the cmd PDU le...
How severe is CVE-2026-98960?
CVSS scoring is not yet available for CVE-2026-98960. Check NVD for updates.
Is there a patch for CVE-2026-98960?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.