Vulnerability Description
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".
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15, < 5.15.47 |
References
- https://git.kernel.org/stable/c/248d71b440aef829f5cc5f6545ca113ef5062900Patch
- https://git.kernel.org/stable/c/9758a6653c27867d810de02b4e5697163dda9883Patch
- https://git.kernel.org/stable/c/cf824b95c12a1abacadbc2d069931963221a3414Patch
- https://git.kernel.org/stable/c/d21a580dafc69aa04f46e6099616146a536b0724Patch
FAQ
What is CVE-2022-49366?
CVE-2022-49366 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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" ...
How severe is CVE-2022-49366?
CVE-2022-49366 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49366?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.