CVE-2024-46742

smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()

Description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open() null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) and parse_lease_state() return NULL. Fix this by check if 'lease_ctx_info' is NULL. Additionally, remove the redundant parentheses in parse_durable_handle_context().

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/878f32878351104448b86ef5b85d1f8ed6f599fb
https://git.kernel.org/stable/c/ec28c35029b7930f31117f9284874b63bea4f31b
https://git.kernel.org/stable/c/07f384c5be1f8633b13f0a22616e227570450bc6 patch
https://git.kernel.org/stable/c/3b692794b81f2ecad69a4adbba687f3836824ada patch
https://git.kernel.org/stable/c/4e8771a3666c8f216eefd6bd2fd50121c6c437db patch

Frequently Asked Questions

What is the severity of CVE-2024-46742?
CVE-2024-46742 has been scored as a medium severity vulnerability.
How to fix CVE-2024-46742?
To fix CVE-2024-46742, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-46742 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-46742 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-46742?
CVE-2024-46742 affects Linux Linux, Linux Linux.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.