SB20250619236 - NULL pointer dereference in Linux kernel arm64 kernel
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB20250619236
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-2022-50206)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the LIST_HEAD(), emulation_proc_handler() and register_insn_emulation_sysctl() functions in arch/arm64/kernel/armv8_deprecated.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/04549063d5701976034d8c2bfda3d3a8cbf0409f
- https://git.kernel.org/stable/c/07022e07017ee5540f5559b0aeb916e8383c1e1a
- https://git.kernel.org/stable/c/353b4673d01c512303c45cf2346f630cda73b5c9
- https://git.kernel.org/stable/c/6a2fd114678d7fc1b5a0f8865ae98f1c17787455
- https://git.kernel.org/stable/c/9d5fec6ba2e4117d196a8259ab54615ffe562460
- https://git.kernel.org/stable/c/af483947d472eccb79e42059276c4deed76f99a6
- https://git.kernel.org/stable/c/b51881b1da57fe9877125dfdd0aac5172958fcfd
- https://git.kernel.org/stable/c/cc69ef95988b9ef2fc730ec452a7441efb90ef5e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.61