CVE catalog

CVE-2025-39884

linux: CVE-2025-39884

Severity: Medium · CVSS 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published: Sep 22, 2025, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.11% · Oct 27, 2026

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix subvolume deletion lockup caused by inodes xarray race There is a race condition between inode eviction and inode caching that can cause a live struct btrfs_inode to be missing from the root->inodes xarray. Specifically, there is a window during evict() between the inode being unhashed and deleted from the xarray. If btrfs_iget() is called for the same inode in that window, it will be recreated and inserted into the xarray, but then eviction will delete the new entry, leaving nothing in the xarray: Thread 1 Thread 2 --------------------------------------------------------------- evict() remove_inode_hash() btrfs_iget_path() btrfs_iget_locked() btrfs_read_locked_inode() btrfs_add_inode_to_root() destroy_inode() btrfs_destroy_inode() btrfs_del_inode_from_root() __xa_erase In turn, this can cause issues for subvolume deletion. Specifically, if an inode is in this lost state, and all other inodes are evicted, then btrfs_del_inode_from_root() will call btrfs_add_dead_root() prematurely. If the lost inode has a delayed_node attached to it, then when btrfs_clean_one_deleted_snapshot() calls btrfs_kill_all_delayed_nodes(), it will loop forever because the delayed_nodes xarray will never become empty (unless memory pressure forces the inode out). We saw this manifest as soft lockups in production. Fix it by only deleting the xarray entry if it matches the given inode (using __xa_cmpxchg()).

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	linux	sid	`7.2.13-1`	fixed
Debian	linux	forky	`7.2.12-1`	fixed
Debian	linux	trixie	`6.12.107-1`	fixed
Debian	linux	trixie-security	`6.12.113-1`	fixed
Debian	linux	bookworm	`6.1.176-1`	not affected
Debian	linux	bookworm-security	`6.1.190-1`	not affected
Cpe	linux_kernel	Not reported	Not reported	unknown

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	linux	source	sid	`6.16.8-1`	not yet assigned	Not reported	Not reported
Debian	linux	source	forky	`6.16.8-1`	not yet assigned	Not reported	Not reported
Debian	linux	source	trixie	`6.12.48-1`	not yet assigned	Not reported	Not reported
Debian	linux	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[bpftool]Not affected
Source package: [linux]
Details (6)
- 7.1.0+6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 7.1.0+6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 7.5.0+6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 7.5.0+6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 7.1.0+6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 7.1.0+6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[hyperv-daemons]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[intel-sdsi]Not affected
Source package: [linux]
Details (1)
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
[libcpupower1]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[libcpupower-dev]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-bpf-dev]Not affected
Source package: [linux]
Details (2)
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
[linux-compiler-gcc-12-x86]Not affected
Source package: [linux]
Details (2)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-config-6.1]Not affected
Source package: [linux]
Details (4)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-cpupower]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-doc]Not affected
Source package: [linux]
Details (32)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.43-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.43-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.57-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.57-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.63-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.63-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.69-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.69-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.73-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.73-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.74-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.74-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.85-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.85-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.86-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.86-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.88-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.88-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.94-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.94-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-doc-6.1]Not affected
Source package: [linux]
Details (6)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-arm64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-cloud-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-cloud-arm64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-common]Not affected
Source package: [linux]
Details (2)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-common-rt]Not affected
Source package: [linux]
Details (2)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-rt-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-rt-arm64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-50-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm

Next results

Observed: Oct 27, 2026, 11:40:16 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]