kernel is vulnerable to privilege escalation. An integer overflow in fs/seq_file.c
due to improper restrictions of the seq buffer allocations results in an out-of-bounds write, and escalation to root by an unprivileged user.
packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html
packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html
packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html
packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html
www.openwall.com/lists/oss-security/2021/07/22/7
www.openwall.com/lists/oss-security/2021/08/25/10
www.openwall.com/lists/oss-security/2021/09/17/2
www.openwall.com/lists/oss-security/2021/09/17/4
www.openwall.com/lists/oss-security/2021/09/21/1
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
git.launchpad.net/ubuntu-cve-tracker/tree/active/CVE-2021-33909
github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b
lists.debian.org/debian-lts-announce/2021/07/msg00014.html
lists.debian.org/debian-lts-announce/2021/07/msg00015.html
lists.debian.org/debian-lts-announce/2021/07/msg00016.html
lists.fedoraproject.org/archives/list/[email protected]/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/
psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015
security.netapp.com/advisory/ntap-20210819-0004/
www.debian.org/security/2021/dsa-4941
www.openwall.com/lists/oss-security/2021/07/20/1
www.oracle.com/security-alerts/cpujan2022.html