Vulnerability in Linux

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: btrfs: abort transaction on failure to update inode for hole punching and reflinking If we fail to update the inode we error out without aborting the transaction, which can result in a persistent inconsistency if after the failure the transaction is committed, as we have dropped file extent items from a range and either punched a hole or insert a new file extent item for that range (for reflinks). So add the missing transaction abort.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund5 Oct 2026WID-SEC-2026-3743

  Linux Kernel: Multiple vulnerabilities Translated from German

  Risk mediumCVE-2026-98221CVE-2026-98181CVE-2026-98248+204 more CVEs

[ References ]References

• git.kernel.org/stable/c/2605eb9ba3bbd4c9f455cfe6b85bd28a1da7067d
• git.kernel.org/stable/c/36c68dc909845c049e0286d229bc502947239452
• git.kernel.org/stable/c/834a3b5c5f1ec0df48c1a6208f9989f4ffdaa0b6
• git.kernel.org/stable/c/9588850bfa75c78ce73c2f6f72544d19d2e9beb6
• git.kernel.org/stable/c/97fcd34aa9fd73cefe3120ac9a82ca9d7763922f