CVE-2025-38193

Katalog CVE

CVSS 5.5 · Medium EPSS 0,21%

Kerentanan Integer Overflow or Wraparound pada linux kernel, debian linux. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: net_sched: sch_sfq: reject invalid perturb period Gerrard Tai reported that SFQ perturb_period has no range check yet, and this can be used to trigger a race condition fixed in a separate patch. We want to make sure ctl->perturb_period * HZ will not overflow and is positive. tc qd add dev lo root sfq perturb -10 # negative value : error Error: sch_sfq: invalid perturb period. tc qd add dev lo root sfq perturb 1000000000 # too big : error Error: sch_sfq: invalid perturb period. tc qd add dev lo root sfq perturb 2000000 # acceptable value tc -s -d qd sh dev lo qdisc sfq 8005: root refcnt 2 limit 127p quantum 64Kb depth 127 flows 128 divisor 1024 perturb 2000000sec Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0

Rincian

Terbit di NVD

4 Juli 2025

Terakhir diubah

30 Juli 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

0,21% peluang dieksploitasi; lebih tinggi dari 9,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0357da9149eac621f39e235a135ebf155f01f7c3 patch
• https://git.kernel.org/stable/c/2254d038dab9c194fe6a4b1ce31034f42e91a6e5 patch
• https://git.kernel.org/stable/c/590b2d7d0beadba2aa576708a05a05f0aae39295 patch
• https://git.kernel.org/stable/c/7ca52541c05c832d32b112274f81a985101f9ba8 patch
• https://git.kernel.org/stable/c/956b5aebb349449b38d920d444ca1392d43719d1 patch
• https://git.kernel.org/stable/c/b11a50544af691b787384089b68f740ae20a441b patch
• https://git.kernel.org/stable/c/e0936ff56be4e08ad5b60ec26971eae0c40af305 patch
• https://git.kernel.org/stable/c/f9b97d466e6026ccbdda30bb5b71965b67ccbc82 patch
• https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html advisory pihak ketiga