CVE-2024-49988: ksmbd: add refcnt to ksmbd_conn struct
First published: Mon Oct 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ksmbd: add refcnt to ksmbd_conn struct When sending an oplock break request, opinfo->conn is used, But freed ->conn can be used on multichannel. This patch add a reference count to the ksmbd_conn struct so that it can be freed when it is no longer used.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.6.55 | |
| Linux Kernel | >=6.7<6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 |
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Reference Links
- https://git.kernel.org/stable/c/18f06bacc197d4ac9b518ad1c69999bc3d83e7aa
- https://git.kernel.org/stable/c/9fd3cde4628bcd3549ab95061f2bab74d2ed4f3b
- https://git.kernel.org/stable/c/e9dac92f4482a382e8c0fe1bc243da5fc3526b0c
- https://git.kernel.org/stable/c/ee426bfb9d09b29987369b897fe9b6485ac2be27
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49988
- https://nvd.nist.gov/vuln/detail/CVE-2024-49988
- https://launchpad.net/bugs/cve/CVE-2024-49988
- https://security-tracker.debian.org/tracker/CVE-2024-49988
- https://ubuntu.com/security/CVE-2024-49988
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