CVE-2026-23110

Race condition vulnerabilities were found in the Linux kernel's SCSI error handler wake-up logic. Memory ordering issues in scsi_dec_host_busy() and ordering problems in scsi_eh_inc_host_failed() can cause the SCSI error handler to never wake up when command completions race against each other. This leaves I/O stuck indefinitely as the error recovery state cannot advance.

These race conditions affect SCSI host error recovery under concurrent command completion scenarios. When triggered, SCSI I/O becomes permanently stuck waiting for error handler intervention that never comes. The issue requires specific timing of command completions on multi-CPU systems and manifests as hung I/O operations that never complete.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.