Skip to main content
cve.nowby Sazabi
← All vulnerabilities
CVE-2025-21863

io_uring: prevent opcode speculation

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.259, 5.15.209, 6.1.175, 6.6.80, 6.12.17, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From d3656344fea0339fb0365c8df4d2beba4e0089cd · fixed in 87e9eef43c758da267f6332678058a79764c7eba; From d3656344fea0339fb0365c8df4d2beba4e0089cd · fixed in 18eae8420081ef8e043ad455937bfb470ef08607; From d3656344fea0339fb0365c8df4d2beba4e0089cd · fixed in d261ead565a080e3411b0dd04e6d58a52471cac8; From d3656344fea0339fb0365c8df4d2beba4e0089cd · fixed in b9826e3b26ec031e9063f64a7c735449c43955e4; From d3656344fea0339fb0365c8df4d2beba4e0089cd · fixed in 506b9b5e8c2d2a411ea8fe361333f5081c56d23a; From d3656344fea0339fb0365c8df4d2beba4e0089cd · fixed in fdbfd52bd8b85ed6783365ff54c82ab7067bd61b; From d3656344fea0339fb0365c8df4d2beba4e0089cd · fixed in 1e988c3fe1264708f4f92109203ac5b1d65de50b

  • Linux Linux

    5.6

  • KernelLinux

    From 5.6.0 · fixed in 5.10.259; From 5.11.0 · fixed in 5.15.209; From 5.16.0 · fixed in 6.1.175; From 6.2.0 · fixed in 6.6.80; From 6.7.0 · fixed in 6.12.17; From 6.13.0 · fixed in 6.13.5

References 7

git.kernel.org