CVE-2025-21863

Summary

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

io_uring: prevent opcode speculation

sqe->opcode is used for different tables, make sure we santitise it against speculations.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd3656344fea0339fb0365c8df4d2beba4e0089cd < 87e9eef43c758da267f6332678058a79764c7ebaaffected
LinuxLinuxd3656344fea0339fb0365c8df4d2beba4e0089cd < 18eae8420081ef8e043ad455937bfb470ef08607affected
LinuxLinuxd3656344fea0339fb0365c8df4d2beba4e0089cd < d261ead565a080e3411b0dd04e6d58a52471cac8affected
LinuxLinuxd3656344fea0339fb0365c8df4d2beba4e0089cd < b9826e3b26ec031e9063f64a7c735449c43955e4affected
LinuxLinuxd3656344fea0339fb0365c8df4d2beba4e0089cd < 506b9b5e8c2d2a411ea8fe361333f5081c56d23aaffected
LinuxLinuxd3656344fea0339fb0365c8df4d2beba4e0089cd < fdbfd52bd8b85ed6783365ff54c82ab7067bd61baffected
LinuxLinuxd3656344fea0339fb0365c8df4d2beba4e0089cd < 1e988c3fe1264708f4f92109203ac5b1d65de50baffected
LinuxLinux5.6affected
LinuxLinux0 < 5.6unaffected
LinuxLinux5.10.259 <= 5.10.*unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.80 <= 6.6.*unaffected
LinuxLinux6.12.17 <= 6.12.*unaffected
LinuxLinux6.13.5 <= 6.13.*unaffected
LinuxLinux6.14 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References