{"id":"CVE-2023-53603","title":"scsi: qla2xxx: Avoid fcport pointer dereference","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Avoid fcport pointer dereference\n\nKlocwork reported warning of NULL pointer may be dereferenced.  The routine\nexits when sa_ctl is NULL and fcport is all…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 7b2fbfa4b2cd3a24c1760b85d842e928070d4744 < 4406fe8a96a946c7ea5724ee59625755a1d9c59d","Linux >= e0fb8ce2bb9e52c846e54ad2c58b5b7beb13eb09 < 477bc74ad1add644b606bff6ba1284943c42818a","Linux >= e0fb8ce2bb9e52c846e54ad2c58b5b7beb13eb09 < 7bbeff613ec0560fb2f6f8b405288f3f043adf64","Linux >= e0fb8ce2bb9e52c846e54ad2c58b5b7beb13eb09 < 6b504d06976fe4a61cc05dedc68b84fadb397f77","Linux 47b583ad1f7e459689eb1bdd222279a6986ccd69","Linux d2deafaef0330a863b5e046c1154b605588d19f7","Linux >= 5.15.61 < 5.15.121","Linux >= 5.18.18 < 5.19","Linux >= 5.19.2 < 5.20","Linux 6.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:25:10.871680Z"},"published":"2025-10-04","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:31:16.878Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53603","references":[{"url":"https://git.kernel.org/stable/c/4406fe8a96a946c7ea5724ee59625755a1d9c59d"},{"url":"https://git.kernel.org/stable/c/477bc74ad1add644b606bff6ba1284943c42818a"},{"url":"https://git.kernel.org/stable/c/7bbeff613ec0560fb2f6f8b405288f3f043adf64"},{"url":"https://git.kernel.org/stable/c/6b504d06976fe4a61cc05dedc68b84fadb397f77"}],"tags":["cve.org"],"epss":0.00148,"epssPercentile":0.0403,"ingestedAt":"2026-11-05T22:38:31.816Z","slug":"CVE-2023-53603","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Avoid fcport pointer dereference\n\nKlocwork reported warning of NULL pointer may be dereferenced.  The routine\nexits when sa_ctl is NULL and fcport is allocated after the exit call thus\ncausing NULL fcport pointer to dereference at the time of exit.\n\nTo avoid fcport pointer dereference, exit the routine when sa_ctl is NULL.\n\n## Affected\n\n- `Linux >= 7b2fbfa4b2cd3a24c1760b85d842e928070d4744 < 4406fe8a96a946c7ea5724ee59625755a1d9c59d`\n- `Linux >= e0fb8ce2bb9e52c846e54ad2c58b5b7beb13eb09 < 477bc74ad1add644b606bff6ba1284943c42818a`\n- `Linux >= e0fb8ce2bb9e52c846e54ad2c58b5b7beb13eb09 < 7bbeff613ec0560fb2f6f8b405288f3f043adf64`\n- `Linux >= e0fb8ce2bb9e52c846e54ad2c58b5b7beb13eb09 < 6b504d06976fe4a61cc05dedc68b84fadb397f77`\n- `Linux 47b583ad1f7e459689eb1bdd222279a6986ccd69`\n- `Linux d2deafaef0330a863b5e046c1154b605588d19f7`\n- `Linux >= 5.15.61 < 5.15.121`\n- `Linux >= 5.18.18 < 5.19`\n- `Linux >= 5.19.2 < 5.20`\n- `Linux 6.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}