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THREAT OPS › Threat News › [NVD] CVE-2026-80980 (CRITICAL 9.8) — In the Linux kernel, the following vulnerability has been resolved: net/smc: stop killed, freed and out_of_sync sharing a byte The three connection state flags are single-bit bitfields, so they occupy one byte of struct smc_connection and every store to one is a read-modify-wri

[NVD] CVE-2026-80980 (CRITICAL 9.8) — In the Linux kernel, the following vulnerability has been resolved: net/smc: stop killed, freed and out_of_sync sharing a byte The three connection state flags are single-bit bitfields, so they occupy one byte of struct smc_connection and every store to one is a read-modify-wri

mednvdPublished 2026-09-11

CVE-2026-80980 CVSS: 9.8 CRITICAL Published: 2026-09-11T20:19:04.407

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

net/smc: stop killed, freed and out_of_sync sharing a byte

The three connection state flags are single-bit bitfields, so they occupy one byte of struct smc_connection and every store to one is a read-modify-write of the other two:

u8 killed : 1; u8

Indicators of compromise

CVE-2026-80980cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-80980