SB2024071380 - Improper locking in Linux kernel include asm
Published: July 13, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024071380
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) Improper locking (CVE-ID: CVE-2024-40918)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the PTR_PAGE_ALIGN_DOWN(), __flush_cache_page(), flush_icache_pages(), pte_needs_flush(), flush_dcache_folio(), purge_kernel_dcache_page_asm(), copy_user_highpage(), __flush_tlb_range(), flush_cache_range(), flush_anon_page() and invalidate_kernel_vmap_range() functions in arch/parisc/kernel/cache.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/5bf196f1936bf93df31112fbdfb78c03537c07b0
- https://git.kernel.org/stable/c/d66f2607d89f760cdffed88b22f309c895a2af20
- https://git.kernel.org/stable/c/72d95924ee35c8cd16ef52f912483ee938a34d49
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.35