{"api_version":"1","generated_at":"2026-06-03T09:09:12+00:00","cve":"CVE-2026-45978","urls":{"html":"https://cve.report/CVE-2026-45978","api":"https://cve.report/api/cve/CVE-2026-45978.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45978","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45978"},"summary":{"title":"staging: greybus: lights: avoid NULL deref","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: greybus: lights: avoid NULL deref\n\ngb_lights_light_config() stores channel_count before allocating the\nchannels array. If kcalloc() fails, gb_lights_release() iterates the\nnon-zero count and dereferences light->channels, which is NULL.\n\nAllocate channels first and only then publish channels_count so the\ncleanup path can't walk a NULL pointer.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:14","updated_at":"2026-05-27 14:48:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a118724d7641b832fa14323e2733e28ae4834552","name":"https://git.kernel.org/stable/c/a118724d7641b832fa14323e2733e28ae4834552","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/efcffd9a6ad8d190651498d5eda53bfc7cf683a7","name":"https://git.kernel.org/stable/c/efcffd9a6ad8d190651498d5eda53bfc7cf683a7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/01b91cb3e748032fd96bbe0043812b426a52f091","name":"https://git.kernel.org/stable/c/01b91cb3e748032fd96bbe0043812b426a52f091","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/da46264a7016034a5bbbad034c012ef218b7d0af","name":"https://git.kernel.org/stable/c/da46264a7016034a5bbbad034c012ef218b7d0af","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ba5022162da63059bae36c4fd84d7031f582c71f","name":"https://git.kernel.org/stable/c/ba5022162da63059bae36c4fd84d7031f582c71f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/06162d85f830582da6e9e5fcf9c9504d6da9ae0b","name":"https://git.kernel.org/stable/c/06162d85f830582da6e9e5fcf9c9504d6da9ae0b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699","name":"https://git.kernel.org/stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/65f2c608096d766540953d9b170d216aa3b5eb95","name":"https://git.kernel.org/stable/c/65f2c608096d766540953d9b170d216aa3b5eb95","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45978","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45978","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 a118724d7641b832fa14323e2733e28ae4834552 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 3cbe694d235d96f628ec7dc6ae4d8bdddb768699 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 ba5022162da63059bae36c4fd84d7031f582c71f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 65f2c608096d766540953d9b170d216aa3b5eb95 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 01b91cb3e748032fd96bbe0043812b426a52f091 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 06162d85f830582da6e9e5fcf9c9504d6da9ae0b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 da46264a7016034a5bbbad034c012ef218b7d0af git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 efcffd9a6ad8d190651498d5eda53bfc7cf683a7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.9","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.252 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.202 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.165 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.128 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.75 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.14 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.4 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":"45978","cve":"CVE-2026-45978","epss":"0.000240000","percentile":"0.073320000","score_date":"2026-06-01","updated_at":"2026-06-02 00:05:21"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/staging/greybus/light.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a118724d7641b832fa14323e2733e28ae4834552","status":"affected","version":"2870b52bae4c81823ffcb3ed2b0626fb39d64f48","versionType":"git"},{"lessThan":"3cbe694d235d96f628ec7dc6ae4d8bdddb768699","status":"affected","version":"2870b52bae4c81823ffcb3ed2b0626fb39d64f48","versionType":"git"},{"lessThan":"ba5022162da63059bae36c4fd84d7031f582c71f","status":"affected","version":"2870b52bae4c81823ffcb3ed2b0626fb39d64f48","versionType":"git"},{"lessThan":"65f2c608096d766540953d9b170d216aa3b5eb95","status":"affected","version":"2870b52bae4c81823ffcb3ed2b0626fb39d64f48","versionType":"git"},{"lessThan":"01b91cb3e748032fd96bbe0043812b426a52f091","status":"affected","version":"2870b52bae4c81823ffcb3ed2b0626fb39d64f48","versionType":"git"},{"lessThan":"06162d85f830582da6e9e5fcf9c9504d6da9ae0b","status":"affected","version":"2870b52bae4c81823ffcb3ed2b0626fb39d64f48","versionType":"git"},{"lessThan":"da46264a7016034a5bbbad034c012ef218b7d0af","status":"affected","version":"2870b52bae4c81823ffcb3ed2b0626fb39d64f48","versionType":"git"},{"lessThan":"efcffd9a6ad8d190651498d5eda53bfc7cf683a7","status":"affected","version":"2870b52bae4c81823ffcb3ed2b0626fb39d64f48","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/staging/greybus/light.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.9"},{"lessThan":"4.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.252","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.202","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.165","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.4","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":"5.10.252","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.202","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.165","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.128","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.75","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.14","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.4","versionStartIncluding":"4.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"4.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: greybus: lights: avoid NULL deref\n\ngb_lights_light_config() stores channel_count before allocating the\nchannels array. If kcalloc() fails, gb_lights_release() iterates the\nnon-zero count and dereferences light->channels, which is NULL.\n\nAllocate channels first and only then publish channels_count so the\ncleanup path can't walk a NULL pointer."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:18:36.753Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a118724d7641b832fa14323e2733e28ae4834552"},{"url":"https://git.kernel.org/stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699"},{"url":"https://git.kernel.org/stable/c/ba5022162da63059bae36c4fd84d7031f582c71f"},{"url":"https://git.kernel.org/stable/c/65f2c608096d766540953d9b170d216aa3b5eb95"},{"url":"https://git.kernel.org/stable/c/01b91cb3e748032fd96bbe0043812b426a52f091"},{"url":"https://git.kernel.org/stable/c/06162d85f830582da6e9e5fcf9c9504d6da9ae0b"},{"url":"https://git.kernel.org/stable/c/da46264a7016034a5bbbad034c012ef218b7d0af"},{"url":"https://git.kernel.org/stable/c/efcffd9a6ad8d190651498d5eda53bfc7cf683a7"}],"title":"staging: greybus: lights: avoid NULL deref","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-45978","datePublished":"2026-05-27T12:18:36.753Z","dateReserved":"2026-05-13T15:03:33.090Z","dateUpdated":"2026-05-27T12:18:36.753Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:14","lastModifiedDate":"2026-05-27 14:48:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45978","Ordinal":"1","Title":"staging: greybus: lights: avoid NULL deref","CVE":"CVE-2026-45978","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45978","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: greybus: lights: avoid NULL deref\n\ngb_lights_light_config() stores channel_count before allocating the\nchannels array. If kcalloc() fails, gb_lights_release() iterates the\nnon-zero count and dereferences light->channels, which is NULL.\n\nAllocate channels first and only then publish channels_count so the\ncleanup path can't walk a NULL pointer.","Type":"Description","Title":"staging: greybus: lights: avoid NULL deref"}]}}}