SB2024062175 - NULL pointer dereference in Linux kernel block null_blk driver
Published: June 21, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062175
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-2024-36478)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the nullb_update_nr_hw_queues(), nullb_device_power_store(), null_add_dev() and null_create_dev() functions in drivers/block/null_blk/main.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/5d0495473ee4c1d041b5a917f10446a22c047f47
- https://git.kernel.org/stable/c/a2db328b0839312c169eb42746ec46fc1ab53ed2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.119
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.55