CVE-2026-46005: xfs: fix a resource leak in xfs_alloc_buftarg()
In the Linux kernel, the following vulnerability has been resolved:
xfs: fix a resource leak in xfsallocbuftarg()
In the error path, call fsputdax() to drop the DAX device reference.
Affected Software
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 6.6.141.1-1
Event History
Frequently Asked Questions
What access does an attacker need, and what is the expected impact?
Exploitation requires local access and low-level privileges; no user interaction is required. The reported impact is availability only, with no stated confidentiality or integrity impact.
Which products are identified as affected?
The issue affects the Linux kernel and Microsoft azl3 kernel 6.6.139.1-1. The provided data does not identify whether all default kernel or XFS configurations are affected.
What does the remediation address?
The fix changes the xfs_alloc_buftarg() error path to call fs_put_dax() and release a DAX device reference. The provided data does not include a workaround for systems that cannot yet apply the fix.