{"id":"CVE-2023-54279","state":"PUBLISHED","title":"MIPS: fw: Allow firmware to pass a empty env","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nMIPS: fw: Allow firmware to pass a empty env\n\nfw_getenv will use env entry to determine style of env,\nhowever it is legal for firmware to just pass a empty list.\n\nCheck if first entry exist before running strchr to avoid\nnull pointer dereference.","publishedAt":"2025-12-30T12:16:07.018Z","updatedAt":"2026-05-11T19:58:54.080Z","severity":null,"assigner":"Linux","products":["Linux 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fw: Allow firmware to pass a empty env","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nMIPS: fw: Allow firmware to pass a empty env\n\nfw_getenv will use env entry to determine style of env,\nhowever it is legal for firmware to just pass a empty list.\n\nCheck if first entry exist before running strchr to avoid\nnull pointer dereference."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"14aecdd419217e041fb5dd2749d11f58503bdf62","status":"affected","lessThan":"f334b31625683418aaa2a335470eec950a95a254","versionType":"git"},{"version":"14aecdd419217e041fb5dd2749d11f58503bdf62","status":"affected","lessThan":"830181ddced5a05a711dc9da8043203b1f33a77e","versionType":"git"},{"version":"14aecdd419217e041fb5dd2749d11f58503bdf62","status":"affected","lessThan":"0f91290774c798199ba4b8df93de5c3156b5163d","versionType":"git"},{"version":"14aecdd419217e041fb5dd2749d11f58503bdf62","status":"affected","lessThan":"47e61cadc7a5f3dffd42d2d6fda81be163f1ab82","versionType":"git"},{"version":"14aecdd419217e041fb5dd2749d11f58503bdf62","status":"affected","lessThan":"3ef93b7bd9e042db240843f24a80e14da38c6830","versionType":"git"},{"version":"14aecdd419217e041fb5dd2749d11f58503bdf62","status":"affected","lessThan":"a6b54af407873227caef6262e992f5422cdcb6ae","versionType":"git"},{"version":"14aecdd419217e041fb5dd2749d11f58503bdf62","status":"affected","lessThan":"ad79828f133e98585ab2236cad04a55eb7141bbe","versionType":"git"},{"version":"14aecdd419217e041fb5dd2749d11f58503bdf62","status":"affected","lessThan":"aeed787bbbbe1b842beec9a065a36c915226f704","versionType":"git"},{"version":"14aecdd419217e041fb5dd2749d11f58503bdf62","status":"affected","lessThan":"ee1809ed7bc456a72dc8410b475b73021a3a68d5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/mips/fw/lib/cmdline.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.10","versionType":"semver"},{"version":"4.14.315","status":"unaffected","lessThanOrEqual":"4.14.*","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":["arch/mips/fw/lib/cmdline.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f334b31625683418aaa2a335470eec950a95a254"},{"url":"https://git.kernel.org/stable/c/830181ddced5a05a711dc9da8043203b1f33a77e"},{"url":"https://git.kernel.org/stable/c/0f91290774c798199ba4b8df93de5c3156b5163d"},{"url":"https://git.kernel.org/stable/c/47e61cadc7a5f3dffd42d2d6fda81be163f1ab82"},{"url":"https://git.kernel.org/stable/c/3ef93b7bd9e042db240843f24a80e14da38c6830"},{"url":"https://git.kernel.org/stable/c/a6b54af407873227caef6262e992f5422cdcb6ae"},{"url":"https://git.kernel.org/stable/c/ad79828f133e98585ab2236cad04a55eb7141bbe"},{"url":"https://git.kernel.org/stable/c/aeed787bbbbe1b842beec9a065a36c915226f704"},{"url":"https://git.kernel.org/stable/c/ee1809ed7bc456a72dc8410b475b73021a3a68d5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:58:54.080Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"4.14.315"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"4.19.283"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.4.243"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.10.180"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.15.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.1.28"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.2.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.3.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.4"}]}]}],"x_generator":{"engine":"bippy-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