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CVE-2026-80547

s390/vfio_ccw: Implement a crw lock

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.15.218, 6.1.185, 6.6.154, 6.12.105, 6.18.46, 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: s390/vfio_ccw: Implement a crw lock Unlike the channel_program struct, which covers synchronous I/O submissions and asynchronous interrupts, the CRW region relies exclusively on asynchronous events coming from hardware. Implement a lock to manage the list of those payloads, to ensure they are read cohesively.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated

Affected versions

  • Linux Linux

    From 3f02cb2fd9d2d9e8762102886e3e4b51285797ee · fixed in 3c94d4179bcc19e01b28db634c07a58b28116209; From 3f02cb2fd9d2d9e8762102886e3e4b51285797ee · fixed in 0edd222730a9d7ec98368aaf1d40ee2d8d862e61; From 3f02cb2fd9d2d9e8762102886e3e4b51285797ee · fixed in a3d60ae24183eee352c8e87a0ff94c97cd87f156; From 3f02cb2fd9d2d9e8762102886e3e4b51285797ee · fixed in 49fa26b0df009dc1f420980bd71780e70615b83b; From 3f02cb2fd9d2d9e8762102886e3e4b51285797ee · fixed in 7902be374cbfc11c3435e1e87bf22195bf06a558; From 3f02cb2fd9d2d9e8762102886e3e4b51285797ee · fixed in c76c4ee72bfc3824f4f491f18ed0323bf2e2daf9; From 3f02cb2fd9d2d9e8762102886e3e4b51285797ee · fixed in 16b0798024c0e9117e395829ddbbe70981c79d9c

  • Linux Linux

    5.8

  • KernelLinux

    From 5.8.0 · fixed in 5.15.218; From 5.16.0 · fixed in 6.1.185; From 6.2.0 · fixed in 6.6.154; From 6.7.0 · fixed in 6.12.105; From 6.13.0 · fixed in 6.18.46; From 6.19.0 · fixed in 7.1.10

References 7

git.kernel.org