CVE-2024-53107

Summary

In the Linux kernel, the following vulnerability has been resolved:

fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()

The "arg->vec_len" variable is a u64 that comes from the user at the start of the function. The "arg->vec_len * sizeof(struct page_region))" multiplication can lead to integer wrapping. Use size_mul() to avoid that.

Also the size_add/mul() functions work on unsigned long so for 32bit systems we need to ensure that "arg->vec_len" fits in an unsigned long.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux52526ca7fdb905a768a93f8faa418e9b988fc34b < adee03f8903c58a6a559f21388a430211fac8ce9affected
LinuxLinux52526ca7fdb905a768a93f8faa418e9b988fc34b < 669b0cb81e4e4e78cff77a5b367c7f70c0c6c05eaffected
LinuxLinux6.7affected
LinuxLinux0 < 6.7unaffected
LinuxLinux6.11.10 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References