Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-43379

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 19.0%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2026-43379


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