CVE-2024-53107: 
Linux Kernel vulnerability analysis and mitigation

CVE-2024-53107 is a vulnerability in the Linux kernel's fs/proc/task_mmu component, discovered in December 2024. The issue involves an integer overflow vulnerability in the pagemap_scan_get_args() function, where the 'arg->vec_len' variable, which comes from user input, could lead to integer wrapping during multiplication with sizeof(struct page_region) (NVD).

The vulnerability is classified as an Integer Overflow or Wraparound (CWE-190) with a CVSS v3.1 base score of 5.5 (Medium). The issue occurs in the pagemap_scan_get_args() function where the multiplication of 'arg->vec_len' (a u64 variable) with sizeof(struct page_region) could result in integer wrapping. Additionally, since size_add/mul() functions work with unsigned long, there's a specific concern for 32-bit systems where 'arg->vec_len' needs to fit within an unsigned long range (NVD).

The vulnerability affects Linux kernel versions from 6.7 up to (excluding) 6.11.10, and various 6.12 release candidates. If exploited, this integer overflow could potentially lead to high availability impact, though there are no reported confidentiality or integrity impacts (NVD).

The vulnerability has been patched by implementing size_mul() to prevent integer wrapping and adding a check to ensure that 'arg->vec_len' fits within an unsigned long on 32-bit systems. The fix has been applied in kernel version 6.11.10 and later releases (Kernel Patch).