In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate BOOT sectors_per_clusters When the NTFS BOOT sectors_per_clusters field is > 0x80, it represents a shift value. Make sure that the shift value is not too large before using it (NTFS max cluster size is 2MB). Return -EVINVAL if it too large. This prevents negative shift values and shift values that are larger than the field size. Prevents this UBSAN error: UBSAN: shift-out-of-bounds in ../fs/ntfs3/super.c:673:16 shift exponent -192 is negative
| Product | Vendor | Version |
|---|---|---|
| Linux | Linux | firmware Ver.1.16.1 and earlier |
| Linux | Linux | n/a |
| Linux | Linux | 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation) |
| Linux | Linux | 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1 |