Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix reference count leak in smb_check_perm_dacl() The issue happens in a specific path in smb_check_perm_dacl(). When "id" and "uid" have the same value, the function simply jumps out of the loop without decrementing the reference count of the object "posix_acls", which is increased by get_acl() earlier. This may result in memory leaks. Fix it by decreasing the reference count of "posix_acls" before jumping to label "check_access_bits".
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 777cad1604d68ed4379ec899d1f7d2f6a29f01f0 before cf824b95c12a1abacadbc2d069931963221a3414; affected 777cad1604d68ed4379ec899d1f7d2f6a29f01f0 before 248d71b440aef829f5cc5f6545ca113ef5062900; affected 777cad1604d68ed4379ec899d1f7d2f6a29f01f0 before 9758a6653c27867d810de02b4e5697163dda9883; affected 777cad1604d68ed4379ec899d1f7d2f6a29f01f0 before d21a580dafc69aa04f46e6099616146a536b0724 |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.47 through 5.15.*; unaffected 5.17.15 through 5.17.*; unaffected 5.18.4 through 5.18.*; unaffected 5.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/cf824b95c12a1abacadbc2d069931963221a3414
- https://git.kernel.org/stable/c/248d71b440aef829f5cc5f6545ca113ef5062900
- https://git.kernel.org/stable/c/9758a6653c27867d810de02b4e5697163dda9883
- https://git.kernel.org/stable/c/d21a580dafc69aa04f46e6099616146a536b0724
ADP enrichment
No English description supplied.
No references supplied.