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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-98960

btrfs: don't stash io_uring encoded data across -EAGAIN

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Status
Published
Published
Updated
Assigning organization
Linux

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().

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 34310c442e175f286b4c06ab5caa4e0b267ea31c to < 4d9c1e0a7fb2cfb1cc924acafc194d2c15c3e83eaffected
  • 34310c442e175f286b4c06ab5caa4e0b267ea31c to < 51562a8cb11628d3a5e105b4c347ec5473e5745faffected

Linux Linux

Default version status: affected

  • 6.13affected
  • 0 to < 6.13unaffected
  • 7.2.11 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References