CVEvulnerability
CVE-2026-23423
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-03
- Last modified
- 2026-07-24
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-401
Description
In the Linux kernel, the following vulnerability has been resolved:
btrfs: free pages on error in btrfs_uring_read_extent()
In this function the 'pages' object is never freed in the hopes that it is
picked up by btrfs_uring_read_finished() whenever that executes in the
future. But that's just the happy path. Along the way previous
allocations might have gone wrong, or we might not get -EIOCBQUEUED from
btrfs_encoded_read_regular_fill_pages(). In all these cases, we go to a
cleanup section that frees all memory allocated by this function without
assuming any deferred execution, and this also needs to happen for the
'pages' allocation.
Affected configurations
• linux linux kernel (>= 6.13.1 < 6.18.17)
• linux linux kernel (>= 6.19 < 6.19.7)
• linux linux kernel 6.13
• linux linux kernel 7.0
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness