{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-42152","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-07-29T15:50:41.193Z","datePublished":"2024-07-30T07:46:44.795Z","dateUpdated":"2026-05-11T20:27:58.252Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T20:27:58.252Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: fix a possible leak when destroy a ctrl during qp establishment\n\nIn nvmet_sq_destroy we capture sq->ctrl early and if it is non-NULL we\nknow that a ctrl was allocated (in the admin connect request handler)\nand we need to release pending AERs, clear ctrl->sqs and sq->ctrl\n(for nvme-loop primarily), and drop the final reference on the ctrl.\n\nHowever, a small window is possible where nvmet_sq_destroy starts (as\na result of the client giving up and disconnecting) concurrently with\nthe nvme admin connect cmd (which may be in an early stage). But *before*\nkill_and_confirm of sq->ref (i.e. the admin connect managed to get an sq\nlive reference). In this case, sq->ctrl was allocated however after it was\ncaptured in a local variable in nvmet_sq_destroy.\nThis prevented the final reference drop on the ctrl.\n\nSolve this by re-capturing the sq->ctrl after all inflight request has\ncompleted, where for sure sq->ctrl reference is final, and move forward\nbased on that.\n\nThis issue was observed in an environment with many hosts connecting\nmultiple ctrls simoutanuosly, creating a delay in allocating a ctrl\nleading up to this race window."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/target/core.c"],"versions":[{"version":"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a","lessThan":"2f3c22b1d3d7e86712253244797a651998c141fa","status":"affected","versionType":"git"},{"version":"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a","lessThan":"b4fed1443a6571d49c6ffe7d97af3bbe5ee6dff5","status":"affected","versionType":"git"},{"version":"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a","lessThan":"940a71f08ef153ef807f751310b0648d1fa5d0da","status":"affected","versionType":"git"},{"version":"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a","lessThan":"5502c1f1d0d7472706cc1f201aecf1c935d302d1","status":"affected","versionType":"git"},{"version":"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a","lessThan":"818004f2a380420c19872171be716174d4985e33","status":"affected","versionType":"git"},{"version":"0f5be6a4ff7b3f8bf3db15f904e3e76797a43d9a","lessThan":"c758b77d4a0a0ed3a1292b3fd7a2aeccd1a169a4","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/target/core.c"],"versions":[{"version":"5.6","status":"affected"},{"version":"0","lessThan":"5.6","status":"unaffected","versionType":"semver"},{"version":"5.10.222","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.163","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.98","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.39","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.9.9","lessThanOrEqual":"6.9.*","status":"unaffected","versionType":"semver"},{"version":"6.10","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.10.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.15.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.1.98"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.6.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.9.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.10"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2f3c22b1d3d7e86712253244797a651998c141fa"},{"url":"https://git.kernel.org/stable/c/b4fed1443a6571d49c6ffe7d97af3bbe5ee6dff5"},{"url":"https://git.kernel.org/stable/c/940a71f08ef153ef807f751310b0648d1fa5d0da"},{"url":"https://git.kernel.org/stable/c/5502c1f1d0d7472706cc1f201aecf1c935d302d1"},{"url":"https://git.kernel.org/stable/c/818004f2a380420c19872171be716174d4985e33"},{"url":"https://git.kernel.org/stable/c/c758b77d4a0a0ed3a1292b3fd7a2aeccd1a169a4"}],"title":"nvmet: fix a possible leak when destroy a ctrl during qp establishment","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/2f3c22b1d3d7e86712253244797a651998c141fa","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/b4fed1443a6571d49c6ffe7d97af3bbe5ee6dff5","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/940a71f08ef153ef807f751310b0648d1fa5d0da","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/5502c1f1d0d7472706cc1f201aecf1c935d302d1","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/818004f2a380420c19872171be716174d4985e33","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/c758b77d4a0a0ed3a1292b3fd7a2aeccd1a169a4","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T22:02:15.586Z"}},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-42152","role":"CISA 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