CVE-2026-74570
UnknownSummary
In the Linux kernel, the NTFS filesystem has a vulnerability related to unsafe size calculations during runlist reallocation. A shared helper was added to safely convert runlist element counts to byte sizes with overflow checks, used in ntfs_rl_realloc() and ntfs_rl_realloc_nofail().
Risk Assessment
The vulnerability could lead to integer overflow during memory reallocation, potentially resulting in memory corruption and possibly privilege escalation or system crash.
Recommendation
Apply the Linux kernel patch that adds safe size calculations with overflow checks. Update your system to a kernel version containing this fix.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: ntfs: harden runlist realloc size calculations Add a shared helper to safely convert runlist element counts to byte sizes using overflow checks, and use it in both ntfs_rl_realloc() and ntfs_rl_realloc_nofail().