CVSS 5.5 · Medium EPSS 0,20%
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: net/sched: sch_fq: fix integer overflow of "credit" if sch_fq is configured with "initial quantum" having values greater than INT_MAX, the first assignment of "credit" does signed integer overflow to a very negative value. In this situation, the syzkaller script provided by Cristoph triggers the CPU soft-lockup warning even with few sockets. It's not an infinite loop, but "credit" wasn't probably meant to be minus 2Gb for each new flow. Capping "initial quantum" to INT_MAX proved to fix the issue. v2: validation of "initial quantum" is done in fq_policy, instead of open coding in fq_change() _ suggested by Jakub Kicinski
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 3.12 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 |