CVE-2026-64326: block: skip sync_blockdev() on surprise removal in bdev_mark_dead()
Published Jul 25, 2026
·Updated
block: skip syncblockdev() on surprise removal in bdevmarkdead()
Affected Software
2 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.144.1-1<6.6.145.2-1
6.6.145.2-1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.145.2-1
Event History
Jul 25, 2026
CVE Published
via MITRE·08:49 AM
Data Sourced
via MITRE·08:49 AM
Description
Data Sourced
via NVD·10:17 AM
Description
Jul 26, 2026
Data Sourced
via Microsoft·08:06 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:06 AM
Affected Software
Updated
via Microsoft·08:06 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-64326?
CVE-2026-64326 has a medium severity rating of 5.5.
2
How do I fix CVE-2026-64326?
To fix CVE-2026-64326, update to the latest version of the Linux kernel that includes the patch.
3
What systems are affected by CVE-2026-64326?
CVE-2026-64326 affects the Linux kernel and Microsoft azl3 kernel version 6.6.144.1-1.
4
What does CVE-2026-64326 involve?
CVE-2026-64326 involves skipping the sync_blockdev() operation on surprise removal in the bdev_mark_dead() function.
5
When was CVE-2026-64326 published?
CVE-2026-64326 was published on July 25, 2026.