Orta CVSS 5.5
CVE-2023-53624: Linux Kernel: tamsayı taşması
Açıklama (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
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS
- %0,21 (yüzdelik 11)
- CWE
- CWE-190
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 3.12 | — | 5.10.180 |
| linux-linux-kernel | 5.11 | — | 5.15.111 |
| linux-linux-kernel | 5.16 | — | 6.1.28 |
| linux-linux-kernel | 6.2 | — | 6.2.15 |
| linux-linux-kernel | 6.3 | — | 6.3.2 |