CVE-2026-99250
2026-11-03
12h17 +00:00
12h17 +00:00
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Deskripsi CVE
In the Linux kernel, the following vulnerability has been resolved:
printk: Postpone kthread startup
There have been various bug reports related to SMP systems hanging
on boot. The reports vary but seem to have some overlap with regard
to missed IPI's during SMP setup. The reports also show that
reverting NBCON console usage allows the bugs to disappear.
The NBCON kthreads for console printing are started very early
during boot using early_initcall(). Since these kthreads are
asynchronously enabling/disabling interrupts during early boot, they
may be interfering with early SMP setup on some hardware platforms.
Starting the console printing kthreads later has shown to avoid the
hanging on systems that could previously reproduce the issue.
Postpone kthread starting until after all arch initcalls have
completed.
