CVE-2026-98870Medium· 6.5▾ SunlitA flaw was found in the Linux kernel's ksmbd Server Message Block (SMB) server. A remote attacker could trigger this vulnerability by establishing and terminating bound SMB channels, leaving stale connection references attached to active s…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 24.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.3%
— → 8.8
none → high
Last analysed / modified upstream
0.3% → 0.5%
8.8 → 6.5
high → medium
A flaw was found in the Linux kernel's ksmbd Server Message Block (SMB) server. A remote attacker could trigger this vulnerability by establishing and terminating bound SMB channels, leaving stale connection references attached to active session lists. When the owning connection is subsequently torn down, accessing these dangling references results in a use-after-free memory write, which can lead to kernel memory corruption or a Denial of Service (DoS).
kernel: ksmbd: remove stale channels from all sessions on teardown — rated Moderate by Red Hat. Released 2026-10-23, updated 2026-10-26.
Not affected:
Refer to the advisory for fix availability.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-98112High· 7.8In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix listener task lifetime on netdev events The listener thread exits when its listening socket is shutdown
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