CVE-2026-80984Medium· 5.5▾ SunlitA flaw was found in the `net/smc` component of the Linux kernel. When a link group terminates while a socket is waiting in `smc_close_stream_wait()`, a NULL pointer dereference can occur during the SMC-D teardown path. This can lead to a s…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
— → 4.7
none → medium
— → 4.7
none → medium
Last analysed / modified upstream
— → 5.5
none → medium
A flaw was found in the net/smc component of the Linux kernel. When a link group terminates while a socket is waiting in smc_close_stream_wait(), a NULL pointer dereference can occur during the SMC-D teardown path. This can lead to a system crash, resulting in a Denial of Service (DoS).
kernel: net/smc: do not dereference an unset send buffer on the SMC-D teardown path — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-14.
Affected:
No fix planned:
Not affected:
Fix deferred
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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