CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.8. It affects Linux.
CVE
CVE-2026-43379
Severity
CRITICAL
CVSS
9.8
EPSS
0.44%
Linux
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close() opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is being accessed after rcu_read_unlock() has been called. This creates a race condition where the memory could be freed by a concurrent writer between the unlock and the subsequent pointer dereferences (opinfo->is_lease, etc.), leading to a use-after-free.
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