CVE-2026-93268 ext4: skip extra isize expansion during mount to prevent deadlock

🗓️ 24 Sep 2026 15:52:07Reported by GoogleType

osv🔗 osv.dev👁 3 Views

Linux kernel ext4 deadlock in mount when holding jbd2 handle during isize expansion.

Source	Link
git	www.git.kernel.org/stable/c/1dd4882dbdc8bfdf2182fa388883c143fac0902a
git	www.git.kernel.org/stable/c/2fb8ff81659a57c42bb7b49e8339a2be2a318ef8
git	www.git.kernel.org/stable/c/41897f1bcf4ace5f1f28d0be784b6f4f0e929641
git	www.git.kernel.org/stable/c/7461c60b9c6a839b13ad4c3490681a0cf5aa0637
git	www.git.kernel.org/stable/c/7ace189b9ea79cf78df9c32b940ce12735f9459a
git	www.git.kernel.org/stable/c/7ba09330d9ea6e996228316719eae812d7e04983
git	www.git.kernel.org/stable/c/9c3469377b1d8caba6bec6ef3c460810bbfb02cc
git	www.git.kernel.org/stable/c/c5e6434cc55f30220b228be237bb666351f9f4dd
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93268.json
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-93268

26 Sep 2026 03:48Current

5.8Medium risk

Vulners AI Score5.8

ext4 Linux kernel deadlock circular lock dependency s_writepages_rwsem jbd2_handle