{"id":"CVE-2023-52809","state":"PUBLISHED","title":"scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup()\n\nfc_lport_ptp_setup() did not check the return value of fc_rport_create()\nwhich can return NULL and would cause a NULL pointer dereference. Address\nthis issue by checking return value of fc_rport_create() and log error\nmessage on fc_rport_create() failed.","publishedAt":"2024-05-21T15:31:18.982Z","updatedAt":"2026-05-11T19:33:31.862Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"42e9a92fe6a9095bd68a379aaec7ad2be0337f7a","status":"affected","lessThan":"930f0aaba4820d6362de4e6ed569eaf444f1ea4e","versionType":"git"},{"version":"42e9a92fe6a9095bd68a379aaec7ad2be0337f7a","status":"affected","lessThan":"77072ec41d6ab3718c3fc639bc149b8037caedfa","versionType":"git"},{"version":"42e9a92fe6a9095bd68a379aaec7ad2be0337f7a","status":"affected","lessThan":"b549acf999824d4f751ca57965700372f2f3ad00","versionType":"git"},{"version":"42e9a92fe6a9095bd68a379aaec7ad2be0337f7a","status":"affected","lessThan":"bb83f79f90e92f46466adcfd4fd264a7ae0f0f01","versionType":"git"},{"version":"42e9a92fe6a9095bd68a379aaec7ad2be0337f7a","status":"affected","lessThan":"56d78b5495ebecbb9395101f3be177cd0a52450b","versionType":"git"},{"version":"42e9a92fe6a9095bd68a379aaec7ad2be0337f7a","status":"affected","lessThan":"442fd24d7b6b29e4a9cd9225afba4142d5f522ba","versionType":"git"},{"version":"42e9a92fe6a9095bd68a379aaec7ad2be0337f7a","status":"affected","lessThan":"f6fe7261b92b21109678747f36df9fdab1e30c34","versionType":"git"},{"version":"42e9a92fe6a9095bd68a379aaec7ad2be0337f7a","status":"affected","lessThan":"6b9ecf4e1032e645873933e5b43cbb84cac19106","versionType":"git"},{"version":"42e9a92fe6a9095bd68a379aaec7ad2be0337f7a","status":"affected","lessThan":"4df105f0ce9f6f30cda4e99f577150d23f0c9c5f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/libfc/fc_lport.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.29","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.29","versionType":"semver"},{"version":"4.14.331","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.300","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.262","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.202","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.140","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.64","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.5.13","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6.3","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/libfc/fc_lport.c"]}],"references":["https://git.kernel.org/stable/c/930f0aaba4820d6362de4e6ed569eaf444f1ea4e","https://git.kernel.org/stable/c/77072ec41d6ab3718c3fc639bc149b8037caedfa","https://git.kernel.org/stable/c/b549acf999824d4f751ca57965700372f2f3ad00","https://git.kernel.org/stable/c/bb83f79f90e92f46466adcfd4fd264a7ae0f0f01","https://git.kernel.org/stable/c/56d78b5495ebecbb9395101f3be177cd0a52450b","https://git.kernel.org/stable/c/442fd24d7b6b29e4a9cd9225afba4142d5f522ba","https://git.kernel.org/stable/c/f6fe7261b92b21109678747f36df9fdab1e30c34","https://git.kernel.org/stable/c/6b9ecf4e1032e645873933e5b43cbb84cac19106","https://git.kernel.org/stable/c/4df105f0ce9f6f30cda4e99f577150d23f0c9c5f"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/52xxx/CVE-2023-52809.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52809","state":"PUBLISHED","datePublished":"2024-05-21T15:31:18.982Z","dateUpdated":"2026-05-11T19:33:31.862Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-21T15:19:24.248Z"},"containers":{"cna":{"title":"scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup()\n\nfc_lport_ptp_setup() did not check the return value of fc_rport_create()\nwhich can return NULL and would cause a NULL pointer dereference. 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