CVE-2024-46742
Vulnerability Summary
Timeline
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().
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Trends
Current EPSS score: 0.01%• Percentile: 2%
Techniques & Countermeasures
- CWE-476•NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Systems
- linux•linux
≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 878f32878351104448b86ef5b85d1f8ed6f599fb | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < ec28c35029b7930f31117f9284874b63bea4f31b | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 07f384c5be1f8633b13f0a22616e227570450bc6 | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 3b692794b81f2ecad69a4adbba687f3836824ada | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 4e8771a3666c8f216eefd6bd2fd50121c6c437db | 5.15
- linux•linux_kernel
< 6.6.51 | ≥ 6.7, < 6.10.10 | 6.11:rc1 | 6.11:rc2 | 6.11:rc3 | 6.11:rc4
References (6)
- https://git.kernel.org/stable/c/878f32878351104448b86ef5b85d1f8ed6f599fb
- https://git.kernel.org/stable/c/ec28c35029b7930f31117f9284874b63bea4f31b
- https://git.kernel.org/stable/c/07f384c5be1f8633b13f0a22616e227570450bc6
- https://git.kernel.org/stable/c/3b692794b81f2ecad69a4adbba687f3836824ada
- https://git.kernel.org/stable/c/4e8771a3666c8f216eefd6bd2fd50121c6c437db
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html