Out-of-Bounds Write Vulnerability in qfq_change_class Function

Out-of-Bounds Write Vulnerability in qfq_change_class Function

CVE-2023-31436 · HIGH Severity

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.

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