{"id":"CVE-2026-23376","state":"PUBLISHED","title":"nvmet-fcloop: Check remoteport port_state before calling done callback","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-fcloop: Check remoteport port_state before calling done callback\n\nIn nvme_fc_handle_ls_rqst_work, the lsrsp->done callback is only set when\nremoteport->port_state is FC_OBJSTATE_ONLINE.  Otherwise, the\nnvme_fc_xmt_ls_rsp's LLDD call to lport->ops->xmt_ls_rsp is expected to\nfail and the nvme-fc transport layer itself will directly call\nnvme_fc_xmt_ls_rsp_free instead of relying on LLDD's done callback to free\nthe lsrsp resources.\n\nUpdate the fcloop_t2h_xmt_ls_rsp routine to check remoteport->port_state.\nIf online, then lsrsp->done callback will free the lsrsp.  Else, return\n-ENODEV to signal the nvme-fc transport to handle freeing lsrsp.","publishedAt":"2026-03-25T10:27:56.458Z","updatedAt":"2026-05-23T16:04:39.819Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"10c165af35d225eb033f4edc7fcc699a8d2d533d","status":"affected","lessThan":"f30b95159a53e72529a9ca1667f11cd1970240a7","versionType":"git"},{"version":"10c165af35d225eb033f4edc7fcc699a8d2d533d","status":"affected","lessThan":"31d3817bcd9e192b30abe3cf4b68f69d48864dd2","versionType":"git"},{"version":"10c165af35d225eb033f4edc7fcc699a8d2d533d","status":"affected","lessThan":"dd677d0598387ea623820ab2bd0e029c377445a3","versionType":"git"},{"version":"2cf857075bcc8e83c4aa5fe7d8f1efd6af51e04e","status":"affected","versionType":"git"},{"version":"6.17.3","status":"affected","lessThan":"6.18","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/target/fcloop.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.18","versionType":"semver"},{"version":"6.18.17","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.7","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/target/fcloop.c"]}],"references":["https://git.kernel.org/stable/c/f30b95159a53e72529a9ca1667f11cd1970240a7","https://git.kernel.org/stable/c/31d3817bcd9e192b30abe3cf4b68f69d48864dd2","https://git.kernel.org/stable/c/dd677d0598387ea623820ab2bd0e029c377445a3"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23376.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23376","state":"PUBLISHED","datePublished":"2026-03-25T10:27:56.458Z","dateUpdated":"2026-05-23T16:04:39.819Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:46.003Z"},"containers":{"cna":{"title":"nvmet-fcloop: Check remoteport port_state before calling done callback","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-fcloop: Check remoteport port_state before calling done callback\n\nIn nvme_fc_handle_ls_rqst_work, the lsrsp->done callback is only set when\nremoteport->port_state is FC_OBJSTATE_ONLINE.  Otherwise, the\nnvme_fc_xmt_ls_rsp's LLDD call to lport->ops->xmt_ls_rsp is expected to\nfail and the nvme-fc transport layer itself will directly call\nnvme_fc_xmt_ls_rsp_free instead of relying on LLDD's done callback to free\nthe lsrsp resources.\n\nUpdate the fcloop_t2h_xmt_ls_rsp routine to check remoteport->port_state.\nIf online, then lsrsp->done callback will free the lsrsp.  Else, return\n-ENODEV to signal the nvme-fc transport to handle freeing lsrsp."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"10c165af35d225eb033f4edc7fcc699a8d2d533d","status":"affected","lessThan":"f30b95159a53e72529a9ca1667f11cd1970240a7","versionType":"git"},{"version":"10c165af35d225eb033f4edc7fcc699a8d2d533d","status":"affected","lessThan":"31d3817bcd9e192b30abe3cf4b68f69d48864dd2","versionType":"git"},{"version":"10c165af35d225eb033f4edc7fcc699a8d2d533d","status":"affected","lessThan":"dd677d0598387ea623820ab2bd0e029c377445a3","versionType":"git"},{"version":"2cf857075bcc8e83c4aa5fe7d8f1efd6af51e04e","status":"affected","versionType":"git"},{"version":"6.17.3","status":"affected","lessThan":"6.18","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/target/fcloop.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.18","versionType":"semver"},{"version":"6.18.17","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.7","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/target/fcloop.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f30b95159a53e72529a9ca1667f11cd1970240a7"},{"url":"https://git.kernel.org/stable/c/31d3817bcd9e192b30abe3cf4b68f69d48864dd2"},{"url":"https://git.kernel.org/stable/c/dd677d0598387ea623820ab2bd0e029c377445a3"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T16:04:39.819Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"6.18.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"6.19.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}