{"id":"CVE-2023-54123","state":"PUBLISHED","title":"md/raid10: fix memleak for 'conf->bio_split'","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix memleak for 'conf->bio_split'\n\nIn the error path of raid10_run(), 'conf' need be freed, however,\n'conf->bio_split' is missed and memory will be leaked.\n\nSince there are 3 places to free 'conf', factor out a helper to fix the\nproblem.","publishedAt":"2025-12-24T13:06:42.588Z","updatedAt":"2026-05-11T19:55:55.488Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"133008af833b4f2e021d2c294c29c70364a3f0ba","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"b6460f68c1cc95a80d089af402be501619f228e4","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"6361b0592b46c465ac926c1f3105d66c30d9658b","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"7f673fa34c0e3f95ee951a1bbf61791164871d2e","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"b21019a220d9cac08819bb6c63000de9ee61eb9e","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"5cba3e26c073b535e4e3b825ea481fb29c53943b","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"e2fec8d95353a48634b085011626ba3ec8ab8b1c","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"c9ac2acde53f5385de185bccf6aaa91cf9ac1541","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid10.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.12","versionType":"semver"},{"version":"4.19.283","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.243","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.180","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.111","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.28","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.15","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3.2","status":"unaffected","lessThanOrEqual":"6.3.*","versionType":"semver"},{"version":"6.4","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid10.c"]}],"references":["https://git.kernel.org/stable/c/133008af833b4f2e021d2c294c29c70364a3f0ba","https://git.kernel.org/stable/c/b6460f68c1cc95a80d089af402be501619f228e4","https://git.kernel.org/stable/c/6361b0592b46c465ac926c1f3105d66c30d9658b","https://git.kernel.org/stable/c/7f673fa34c0e3f95ee951a1bbf61791164871d2e","https://git.kernel.org/stable/c/b21019a220d9cac08819bb6c63000de9ee61eb9e","https://git.kernel.org/stable/c/5cba3e26c073b535e4e3b825ea481fb29c53943b","https://git.kernel.org/stable/c/e2fec8d95353a48634b085011626ba3ec8ab8b1c","https://git.kernel.org/stable/c/c9ac2acde53f5385de185bccf6aaa91cf9ac1541"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:42.242Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/54xxx/CVE-2023-54123.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-54123","state":"PUBLISHED","datePublished":"2025-12-24T13:06:42.588Z","dateUpdated":"2026-05-11T19:55:55.488Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-24T13:02:52.521Z"},"containers":{"cna":{"title":"md/raid10: fix memleak for 'conf->bio_split'","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix memleak for 'conf->bio_split'\n\nIn the error path of raid10_run(), 'conf' need be freed, however,\n'conf->bio_split' is missed and memory will be leaked.\n\nSince there are 3 places to free 'conf', factor out a helper to fix the\nproblem."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"133008af833b4f2e021d2c294c29c70364a3f0ba","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"b6460f68c1cc95a80d089af402be501619f228e4","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"6361b0592b46c465ac926c1f3105d66c30d9658b","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"7f673fa34c0e3f95ee951a1bbf61791164871d2e","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"b21019a220d9cac08819bb6c63000de9ee61eb9e","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"5cba3e26c073b535e4e3b825ea481fb29c53943b","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"e2fec8d95353a48634b085011626ba3ec8ab8b1c","versionType":"git"},{"version":"fc9977dd069e4f82fcacb262652117c488647319","status":"affected","lessThan":"c9ac2acde53f5385de185bccf6aaa91cf9ac1541","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid10.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.12","versionType":"semver"},{"version":"4.19.283","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.243","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.180","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.111","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.28","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.15","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3.2","status":"unaffected","lessThanOrEqual":"6.3.*","versionType":"semver"},{"version":"6.4","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid10.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/133008af833b4f2e021d2c294c29c70364a3f0ba"},{"url":"https://git.kernel.org/stable/c/b6460f68c1cc95a80d089af402be501619f228e4"},{"url":"https://git.kernel.org/stable/c/6361b0592b46c465ac926c1f3105d66c30d9658b"},{"url":"https://git.kernel.org/stable/c/7f673fa34c0e3f95ee951a1bbf61791164871d2e"},{"url":"https://git.kernel.org/stable/c/b21019a220d9cac08819bb6c63000de9ee61eb9e"},{"url":"https://git.kernel.org/stable/c/5cba3e26c073b535e4e3b825ea481fb29c53943b"},{"url":"https://git.kernel.org/stable/c/e2fec8d95353a48634b085011626ba3ec8ab8b1c"},{"url":"https://git.kernel.org/stable/c/c9ac2acde53f5385de185bccf6aaa91cf9ac1541"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:55:55.488Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"4.19.283"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.4.243"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.10.180"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.15.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.1.28"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.2.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.3.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.4"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}