CVE-2026-23423

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> btrfs: free pages on error in btrfs_uring_read_extent()<br /> <br /> In this function the &amp;#39;pages&amp;#39; object is never freed in the hopes that it is<br /> picked up by btrfs_uring_read_finished() whenever that executes in the<br /> future. But that&amp;#39;s just the happy path. Along the way previous<br /> allocations might have gone wrong, or we might not get -EIOCBQUEUED from<br /> btrfs_encoded_read_regular_fill_pages(). In all these cases, we go to a<br /> cleanup section that frees all memory allocated by this function without<br /> assuming any deferred execution, and this also needs to happen for the<br /> &amp;#39;pages&amp;#39; allocation.