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THREAT OPS › Threat News › [NVD] CVE-2026-80926 (CRITICAL 9.8) — In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in oplock break notification smb2_oplock_break_noti() reads opinfo->conn without any lock and dereferences it after two allocations which may sleep. When the durable handle owning the

[NVD] CVE-2026-80926 (CRITICAL 9.8) — In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in oplock break notification smb2_oplock_break_noti() reads opinfo->conn without any lock and dereferences it after two allocations which may sleep. When the durable handle owning the

mednvdPublished 2026-09-11

CVE-2026-80926 CVSS: 9.8 CRITICAL Published: 2026-09-11T20:18:56.257

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix use-after-free in oplock break notification

smb2_oplock_break_noti() reads opinfo->conn without any lock and dereferences it after two allocations which may sleep. When the durable handle owning the oplock is disconnected, session_fd_check() clears

Indicators of compromise

CVE-2026-80926cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-80926