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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-68396

scsi: core: wake eh reliably when using scsi_schedule_eh

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: core: wake eh reliably when using scsi_schedule_eh Drivers which use the scsi_schedule_eh function to run the error handler currently risk the error handler thread never waking once all commands are timed out or inactive. There is no enforced memory order between setting the host into error recovery state and counting busy commands. This can result in a race with scsi_dec_host_busy where neither CPU sees both conditions of all commands inactive and the host error state to request waking the error handler. To fix this, run the scsi_schedule_eh's scsi_eh_wakeup from a new work item which will use rcu to ensure scsi_schedule_eh's call to scsi_host_busy will occur after the error state is globally visible and will be seen by any current scsi_dec_host_busy callers.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 6eb045e092efefafc6687409a6fa6d1dabf0fb69 to < 4827c824a203eea2c0aa5bfdb13d5c5038cc84daaffected
  • 6eb045e092efefafc6687409a6fa6d1dabf0fb69 to < 866efe8ae8b8b4d095501001b026e1022734be28affected
  • 6eb045e092efefafc6687409a6fa6d1dabf0fb69 to < c7a15091237205770bd9bd4d14eb1f3029d97a34affected
  • 6eb045e092efefafc6687409a6fa6d1dabf0fb69 to < 24d7abda6a2a19e113334accc10029f6a4b57257affected
  • 6eb045e092efefafc6687409a6fa6d1dabf0fb69 to < dccf3b1798b70f94e958b3d00b83010399e6fb05affected

Linux Linux

Default version status: affected

  • 5.5affected
  • 0 to < 5.5unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.101 to ≤ 6.12.*unaffected
  • 6.18.42 to ≤ 6.18.*unaffected
  • 7.1.6 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References