{"api_version":"1","generated_at":"2026-04-19T01:13:28+00:00","cve":"CVE-2026-23434","urls":{"html":"https://cve.report/CVE-2026-23434","api":"https://cve.report/api/cve/CVE-2026-23434.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23434","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23434"},"summary":{"title":"mtd: rawnand: serialize lock/unlock against other NAND operations","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: rawnand: serialize lock/unlock against other NAND operations\n\nnand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area\nwithout holding the NAND device lock. On controllers that implement\nSET_FEATURES via multiple low-level PIO commands, these can race with\nconcurrent UBI/UBIFS background erase/write operations that hold the\ndevice lock, resulting in cmd_pending conflicts on the NAND controller.\n\nAdd nand_get_device()/nand_release_device() around the lock/unlock\noperations to serialize them against all other NAND controller access.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-03 16:16:24","updated_at":"2026-04-18 09:16:26"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f25446e2c28939753d3b62d34dfda49952b2557d","name":"https://git.kernel.org/stable/c/f25446e2c28939753d3b62d34dfda49952b2557d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/28ea836cc44cb8b89c1c174707ead0c1133c60e9","name":"https://git.kernel.org/stable/c/28ea836cc44cb8b89c1c174707ead0c1133c60e9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2","name":"https://git.kernel.org/stable/c/f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fe4a73c3dd48308149d57a10c2761e1d36ced7ba","name":"https://git.kernel.org/stable/c/fe4a73c3dd48308149d57a10c2761e1d36ced7ba","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5fd5c078af23cb353507aa522e09d557d7eaef04","name":"https://git.kernel.org/stable/c/5fd5c078af23cb353507aa522e09d557d7eaef04","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bab2bc6e850a697a23b9e5f0e21bb8c187615e95","name":"https://git.kernel.org/stable/c/bab2bc6e850a697a23b9e5f0e21bb8c187615e95","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a80291e577b44593a724d6cd64c14337c78f194d","name":"https://git.kernel.org/stable/c/a80291e577b44593a724d6cd64c14337c78f194d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ce5229e78078e437704157eb542f43a6f83b429b","name":"https://git.kernel.org/stable/c/ce5229e78078e437704157eb542f43a6f83b429b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-23434","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23434","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 28ea836cc44cb8b89c1c174707ead0c1133c60e9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 fe4a73c3dd48308149d57a10c2761e1d36ced7ba git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 ce5229e78078e437704157eb542f43a6f83b429b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 92270086b7e5ada7ab381c06cc3da2e95ed17088 a80291e577b44593a724d6cd64c14337c78f194d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.203 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.167 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.130 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.78 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.20 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.10 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"23434","cve":"CVE-2026-23434","epss":"0.000320000","percentile":"0.090980000","score_date":"2026-04-18","updated_at":"2026-04-19 00:10:43"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/mtd/nand/raw/nand_base.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"28ea836cc44cb8b89c1c174707ead0c1133c60e9","status":"affected","version":"92270086b7e5ada7ab381c06cc3da2e95ed17088","versionType":"git"},{"lessThan":"fe4a73c3dd48308149d57a10c2761e1d36ced7ba","status":"affected","version":"92270086b7e5ada7ab381c06cc3da2e95ed17088","versionType":"git"},{"lessThan":"ce5229e78078e437704157eb542f43a6f83b429b","status":"affected","version":"92270086b7e5ada7ab381c06cc3da2e95ed17088","versionType":"git"},{"lessThan":"a80291e577b44593a724d6cd64c14337c78f194d","status":"affected","version":"92270086b7e5ada7ab381c06cc3da2e95ed17088","versionType":"git"},{"lessThan":"f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2","status":"affected","version":"92270086b7e5ada7ab381c06cc3da2e95ed17088","versionType":"git"},{"lessThan":"5fd5c078af23cb353507aa522e09d557d7eaef04","status":"affected","version":"92270086b7e5ada7ab381c06cc3da2e95ed17088","versionType":"git"},{"lessThan":"f25446e2c28939753d3b62d34dfda49952b2557d","status":"affected","version":"92270086b7e5ada7ab381c06cc3da2e95ed17088","versionType":"git"},{"lessThan":"bab2bc6e850a697a23b9e5f0e21bb8c187615e95","status":"affected","version":"92270086b7e5ada7ab381c06cc3da2e95ed17088","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/mtd/nand/raw/nand_base.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.253","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.203","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.167","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.130","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.78","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.20","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.10","versionStartIncluding":"5.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"5.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: rawnand: serialize lock/unlock against other NAND operations\n\nnand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area\nwithout holding the NAND device lock. On controllers that implement\nSET_FEATURES via multiple low-level PIO commands, these can race with\nconcurrent UBI/UBIFS background erase/write operations that hold the\ndevice lock, resulting in cmd_pending conflicts on the NAND controller.\n\nAdd nand_get_device()/nand_release_device() around the lock/unlock\noperations to serialize them against all other NAND controller access."}],"providerMetadata":{"dateUpdated":"2026-04-18T08:58:52.810Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/28ea836cc44cb8b89c1c174707ead0c1133c60e9"},{"url":"https://git.kernel.org/stable/c/fe4a73c3dd48308149d57a10c2761e1d36ced7ba"},{"url":"https://git.kernel.org/stable/c/ce5229e78078e437704157eb542f43a6f83b429b"},{"url":"https://git.kernel.org/stable/c/a80291e577b44593a724d6cd64c14337c78f194d"},{"url":"https://git.kernel.org/stable/c/f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2"},{"url":"https://git.kernel.org/stable/c/5fd5c078af23cb353507aa522e09d557d7eaef04"},{"url":"https://git.kernel.org/stable/c/f25446e2c28939753d3b62d34dfda49952b2557d"},{"url":"https://git.kernel.org/stable/c/bab2bc6e850a697a23b9e5f0e21bb8c187615e95"}],"title":"mtd: rawnand: serialize lock/unlock against other NAND operations","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-23434","datePublished":"2026-04-03T15:15:19.450Z","dateReserved":"2026-01-13T15:37:46.016Z","dateUpdated":"2026-04-18T08:58:52.810Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-03 16:16:24","lastModifiedDate":"2026-04-18 09:16:26","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"23434","Ordinal":"1","Title":"mtd: rawnand: serialize lock/unlock against other NAND operation","CVE":"CVE-2026-23434","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23434","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: rawnand: serialize lock/unlock against other NAND operations\n\nnand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area\nwithout holding the NAND device lock. On controllers that implement\nSET_FEATURES via multiple low-level PIO commands, these can race with\nconcurrent UBI/UBIFS background erase/write operations that hold the\ndevice lock, resulting in cmd_pending conflicts on the NAND controller.\n\nAdd nand_get_device()/nand_release_device() around the lock/unlock\noperations to serialize them against all other NAND controller access.","Type":"Description","Title":"mtd: rawnand: serialize lock/unlock against other NAND operation"}]}}}