CVE-2026-43338 · cross-distro fix matrix

CVE-2026-43338: In the Linux kernel, the following vulnerability has been resolved: btrfs: reserve enough transaction items for qgroup ioctls Currently our qgroup ioctls don't reserve any space, they just do a transaction join, which does not reserve any space, neither for the quota tree updates nor for the delay

Affects 1 Linux release across 1 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2026-43338 has a known fix. Run the listed command on that distro to remediate.

Debian trixie

Source: Debian Security Tracker

linux→ fixed in6.12.85-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y linux
```

Are YOU affected by CVE-2026-43338?

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