| Name | CVE-2019-19813 |
| Description | In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in __mutex_lock in kernel/locking/mutex.c. This is related to mutex_can_spin_on_owner in kernel/locking/mutex.c, __btrfs_qgroup_free_meta in fs/btrfs/qgroup.c, and btrfs_insert_delayed_items in fs/btrfs/delayed-inode.c. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2385-1, DLA-2586-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | buster | 4.19.249-2 | fixed |
| buster (security) | 4.19.289-2 | fixed | |
| bullseye | 5.10.197-1 | fixed | |
| bullseye (security) | 5.10.191-1 | fixed | |
| bookworm | 6.1.55-1 | fixed | |
| bookworm (security) | 6.1.52-1 | fixed | |
| trixie | 6.5.10-1 | fixed | |
| sid | 6.5.13-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | stretch | 4.9.258-1 | DLA-2586-1 | ||
| linux | source | buster | 4.19.146-1 | |||
| linux | source | (unstable) | 5.2.6-1 | |||
| linux-4.19 | source | stretch | 4.19.146-1~deb9u1 | DLA-2385-1 |
https://git.kernel.org/linus/6bf9e4bd6a277840d3fe8c5d5d530a1fbd3db592