CVE-2026-80986High· 7.0▾ TwilightA flaw was found in the Linux kernel's SMC-Rv2 network component. A remote attacker could exploit this vulnerability by sending a specially crafted message during an SMC-Rv2 link addition. This can lead to a slab-out-of-bounds write, poten…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38.5 · likelihood 0.1 · 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%
— → 4.1
none → medium
0.2% → 0.6%
— → 4.1
none → medium
— → 9.8
none → critical
Last analysed / modified upstream
9.8 → 4.1
critical → medium
9.8 → 4.1
critical → medium
4.1 → 7
medium → high
A flaw was found in the Linux kernel's SMC-Rv2 network component. A remote attacker could exploit this vulnerability by sending a specially crafted message during an SMC-Rv2 link addition. This can lead to a slab-out-of-bounds write, potentially causing a system crash and resulting in a denial of service.
kernel: net/smc: bound the peer rkey counts in SMC-Rv2 LLC messages — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-14.
Affected:
No fix planned:
Not affected:
Affected
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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