UBUNTU-CVE-2026-23423

In the Linux kernel, the following vulnerability has been resolved: btrfs: free pages on error in btrfsuringreadextent In this function the 'pages' object is never freed in the hopes that it is picked up by btrfsuringreadfinished whenever that executes in the future. But that's just the happy pat...

CVE-2023-53618 btrfs: reject invalid reloc tree root keys with stack dump

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject invalid reloc tree root keys with stack dump BUG Syzbot reported a crash that an ASSERT got triggered inside preparetomerge. That ASSERT makes sure the reloc tree is properly pointed back by its subvolume tree. CAUS...

Linux Distros Unpatched Vulnerability : CVE-2022-49996

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: btrfs: fix possible memory leak in btrfsgetdevargsfrompath In btrfsgetdevargsfrompath,...

CVE-2025-21942 btrfs: zoned: fix extent range end unlock in cow_file_range()

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: fix extent range end unlock in cowfilerange Running generic/751 on the for-next branch often results in a hang like below. They are both stack by locking an extent. This suggests someone forget to unlock an extent...

CVE-2022-49469 btrfs: fix anon_dev leak in create_subvol()

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix anondev leak in createsubvol When btrfsqgroupinherit, btrfsalloctreeblock, or btrfsinsertroot fail in createsubvol, we return without freeing anondev. Reorganize the error handling in createsubvol to fix this...

CVE-2022-49079 btrfs: zoned: traverse devices under chunk_mutex in btrfs_can_activate_zone

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: traverse devices under chunkmutex in btrfscanactivatezone btrfscanactivatezone can be called with the devicelistmutex already held, which will lead to a deadlock: insertdevextents // Takes devicelistmutex -...

CVE-2024-56759

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free when COWing tree bock and tracing is enabled When a COWing a tree block, at btrfscowblock, and we have the tracepoint tracebtrfscowblock enabled and preemption is also enabled CONFIGPREEMPT=y, we can...