SB2024091886 - NULL pointer dereference in Linux kernel smb server
Published: September 18, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024091886
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2024-46742)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the parse_durable_handle_context() and smb2_open() functions in fs/smb/server/smb2pdu.c, within the create_lease_buf() function in fs/smb/server/oplock.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/07f384c5be1f8633b13f0a22616e227570450bc6
- https://git.kernel.org/stable/c/3b692794b81f2ecad69a4adbba687f3836824ada
- https://git.kernel.org/stable/c/4e8771a3666c8f216eefd6bd2fd50121c6c437db
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.181
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.135
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.51