Linux
CVE-2026-99250: In the Linux kernel, the following vulnerability has been resolved: printk: Postpone kthread startup There have been various bug reports related to SMP system
CVE-2026-99250 Nov 3, 2026 Source: Vendor
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 e
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-99250
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