The vulnerability of the rseq_exit_user_update() function in the include/linux/rseq_entry.h module of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the rseqexituserupdate function in the include/linux/rseqentry.h module of the Linux kernel is related to access to an uninitialized pointer. Exploiting this vulnerability could allow an attacker to cause a system failure...

CVE-2026-53243

In the Linux kernel, the following vulnerability has been resolved: rseq: Fix using an uninitialized stack variable in rseqexituserupdate There is an bug in which an uninitialized stack variable is used in rseqexituserupdate as reported by syzbot: BUG: KMSAN: kernel-infoleak in rseqsetidsgetcsadd...

CVE-2026-53243: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: rseq: Fix using an uninitialized stack variable in rseqexituserupdate There is an bug in which an uninitialized stack variable is used in rseqexituserupdate as reported by syzbot: BUG: KMSAN: kernel-infoleak in rseqsetidsgetcsadd...