CVSS 5.5 · Medium EPSS 0,16%
Kerentanan Integer Overflow or Wraparound pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: x86/MCE/AMD: Use an u64 for bank_map Thee maximum number of MCA banks is 64 (MAX_NR_BANKS), see a0bc32b3cacf ("x86/mce: Increase maximum number of banks to 64"). However, the bank_map which contains a bitfield of which banks to initialize is of type unsigned int and that overflows when those bit numbers are >= 32, leading to UBSAN complaining correctly: UBSAN: shift-out-of-bounds in arch/x86/kernel/cpu/mce/amd.c:1365:38 shift exponent 32 is too large for 32-bit type 'int' Change the bank_map to a u64 and use the proper BIT_ULL() macro when modifying bits in there. [ bp: Rewrite commit message. ]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 5.10 hingga sebelum 5.10.180 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.111 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.1.28 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.2.15 |
| linux | linux kernel | Versi 6.3 hingga sebelum 6.3.2 |