AZL-102710
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-102710.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-102710
- Upstream
- Published
- 2026-09-17T17:18:01Z
- Modified
- 2026-09-18T14:15:38Z
- Summary
- CVE-2026-93073 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
dax: read holder_ops once in dax_holder_notify_failure()
dax_holder_notify_failure() reads dax_dev->holder_ops twice without READ_ONCE() -- once for the NULL check and once for the indirect notify_failure() call. A concurrent fs_put_dax() can clear holder_ops between the two reads, so the check can observe a non-NULL pointer while the call dereferences NULL. (kill_dax() also clears holder_ops, but only after synchronize_srcu(), so it cannot race a reader that is inside dax_read_lock(); fs_put_dax() does no such synchronization.)
Fetch holder_ops once into a local with READ_ONCE() so the NULL check and the indirect call observe the same value.
- References