CVE-2026-53243

A flaw was found in the Linux kernel. An uninitialized stack variable in the rseqexituserupdate function can lead to an information leak. This occurs due to an indeterminate sequencing of expressions during the initialization of the rseqids structure, where ids.nodeid is assigned using an...

SUSE 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...