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CVE-2026-23193 is a use-after-free vulnerability in the Linux kernel SCSI target iSCSI subsystem's iscsit_dec_session_usage_count() function. The function invoked complete() while holding sess->session_usage_lock. A thread awakened by the completion, including one executing the session-release path, could immediately deallocate the iscsit_session object. The original thread could then execute spin_unlock_bh() or otherwise access the freed session structure, resulting in a slab use-after-free. The fix releases session_usage_lock before invoking complete(), ensuring that all accesses to the session object finish before a waiting thread can free it.
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A Linux kernel use-after-free vulnerability in the scsi target iSCSI code, specifically in iscsit_dec_session_usage_count().
A Linux kernel use-after-free vulnerability in the scsi target iSCSI code, specifically iscsit_dec_session_usage_count().
A Linux kernel iSCSI target use-after-free vulnerability in iscsit_dec_session_usage_count().
A Linux kernel use-after-free vulnerability in the SCSI target iSCSI component, specifically in iscsit_dec_session_usage_count().
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Cross-references every affected SKU, including bundled OEM variants.
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