In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.
packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
www.openwall.com/lists/oss-security/2023/05/15/5
bugzilla.redhat.com/show_bug.cgi?id=2196105
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1592a89942e9678f7d9c8030efa777c0d57edab
github.com/torvalds/linux/commit/c1592a89942e9678f7d9c8030efa777c0d57edab
lists.debian.org/debian-lts-announce/2023/06/msg00008.html
lists.debian.org/debian-lts-announce/2023/07/msg00030.html
news.ycombinator.com/item?id=35879660
security.netapp.com/advisory/ntap-20230616-0002/
www.debian.org/security/2023/dsa-5402
www.openwall.com/lists/oss-security/2023/05/08/4