SB2024062196 - NULL pointer dereference in Linux kernel bpf

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Main Vulnerability Database SB2024062196

SB2024062196 - NULL pointer dereference in Linux kernel bpf

Published: June 21, 2024 Updated: May 13, 2025

Security Bulletin ID SB2024062196
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2024-38566)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the real_bind() function in tools/testing/selftests/bpf/progs/lsm_cgroup.c, within the BPF_PROG() function in tools/testing/selftests/bpf/progs/local_storage.c, within the SEC() function in tools/testing/selftests/bpf/progs/bench_local_storage_create.c, within the mark_btf_ld_reg(), check_map_kptr_access(), is_trusted_reg(), bpf_map_direct_read(), BTF_TYPE_SAFE_TRUSTED(), type_is_trusted() and check_ptr_to_btf_access() functions in kernel/bpf/verifier.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References