SB2024060566 - NULL pointer dereference in Linux kernel riscv net
Published: June 5, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024060566
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-2021-47486)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the bpf_int_jit_compile() function in arch/riscv/net/bpf_jit_core.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/cac6b043cea3e120f4fccec16f7381747cbfdc0d
- https://git.kernel.org/stable/c/e1b80a5ebe5431caeb20f88c32d4a024777a2d41
- https://git.kernel.org/stable/c/27de809a3d83a6199664479ebb19712533d6fd9b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.77
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15