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Red Hat: CVE-2023-31436: kernel: out-of-bounds write in qfq_change_class function (Multiple Advisories)

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Red Hat: CVE-2023-31436: kernel: out-of-bounds write in qfq_change_class function (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
04/28/2023
Created
11/16/2023
Added
11/15/2023
Modified
01/28/2025

Description

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.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2023-31436
  • RHSA-2023:6901
  • RHSA-2023:7077
  • RHSA-2023:7423
  • RHSA-2023:7424
  • RHSA-2024:0378
  • RHSA-2024:0412
  • RHSA-2024:0554
  • RHSA-2024:0575
  • RHSA-2024:1323
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