Bug 2559634 (CVE-2026-98962) - CVE-2026-98962 kernel: btrfs: free iov when btrfs_uring_read_extent() fails
Summary: CVE-2026-98962 kernel: btrfs: free iov when btrfs_uring_read_extent() fails
Keywords:
Status: NEW
Alias: CVE-2026-98962
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-23 12:47 UTC by OSIDB Bzimport
Modified: 2026-10-27 17:57 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-10-23 12:47:52 UTC 
In the Linux kernel, the following vulnerability has been resolved:

btrfs: free iov when btrfs_uring_read_extent() fails

After btrfs_uring_read_extent(), the caller always jumped to out_acct.
That skips kfree(data->iov), which is only correct for -EIOCBQUEUED
where the deferred path owns the iov. On failure, fall through to
out_free instead.
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