CVE-2023-31436

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.

References

https://www.spinics.net/lists/stable-commits/msg294885.html

https://www.debian.org/security/2023/dsa-5402

https://security.netapp.com/advisory/ntap-20230609-0001/

https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html

https://github.com/torvalds/linux/commit/3037933448f60f9acb705997eae62013ecb81e0d

https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.13

http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html

http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html

http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3