AZL-66872
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-66872.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-66872
- Upstream
- Published
- 2025-09-04T16:15:40Z
- Modified
- 2026-04-01T05:21:04Z
- Summary
- CVE-2025-38711 affecting package kernel for versions less than 6.6.104.2-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
smb/server: avoid deadlock when linking with ReplaceIfExists
If smb2_create_link() is called with ReplaceIfExists set and the name does exist then a deadlock will happen.
ksmbd_vfs_kern_path_locked() will return with success and the parent directory will be locked. ksmbd_vfs_remove_file() will then remove the file. ksmbd_vfs_link() will then be called while the parent is still locked. It will try to lock the same parent and will deadlock.
This patch moves the ksmbd_vfs_kern_path_unlock() call to before ksmbd_vfs_link() and then simplifies the code, removing the file_present flag variable.
- References