Linux
CVE-2026-99103: In the Linux kernel, the following vulnerability has been resolved: workqueue: Fix unbound pool lifetime for pending pwqs KASAN reports a use-after-free of an
CVE-2026-99103 Oct 28, 2026 Source: Vendor
In the Linux kernel, the following vulnerability has been resolved:
workqueue: Fix unbound pool lifetime for pending pwqs
KASAN reports a use-after-free of an unbound worker_pool in
node_activate_pending_pwq():
BUG: KASAN: slab-use-after-free in _raw_spin_trylock+0x6d/0x120
Read of size 4 at addr ffff8880089ce000 by task kworker/u22:0/318
CPU: 1 UID: 0 PID: 318 Comm: kworker/u22:0 Not tainted 7.2.0 #1 PREEMPT(lazy)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-99103
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