{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47384","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T14:58:30.812Z","datePublished":"2024-05-21T15:03:44.955Z","dateUpdated":"2025-06-19T12:56:03.919Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-06-19T12:56:03.919Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (w83793) Fix NULL pointer dereference by removing unnecessary structure field\n\nIf driver read tmp value sufficient for\n(tmp & 0x08) && (!(tmp & 0x80)) && ((tmp & 0x7) == ((tmp >> 4) & 0x7))\nfrom device then Null pointer dereference occurs.\n(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)\nAlso lm75[] does not serve a purpose anymore after switching to\ndevm_i2c_new_dummy_device() in w83791d_detect_subclients().\n\nThe patch fixes possible NULL pointer dereference by removing lm75[].\n\nFound by Linux Driver Verification project (linuxtesting.org).\n\n[groeck: Dropped unnecessary continuation lines, fixed multi-line alignments]"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/w83793.c"],"versions":[{"version":"cf48d17623281c2b3185030ed23f148bd47e15de","lessThan":"6cb01fe630eaffc5a2c3f7364436caddba286623","status":"affected","versionType":"git"},{"version":"cf48d17623281c2b3185030ed23f148bd47e15de","lessThan":"7c4fd5de39f273626a2b0f3a446d2cc85cd47616","status":"affected","versionType":"git"},{"version":"cf48d17623281c2b3185030ed23f148bd47e15de","lessThan":"746011193f44f97f8784edcf8327c587946745fc","status":"affected","versionType":"git"},{"version":"cf48d17623281c2b3185030ed23f148bd47e15de","lessThan":"dd4d747ef05addab887dc8ff0d6ab9860bbcd783","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/hwmon/w83793.c"],"versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","status":"unaffected","versionType":"semver"},{"version":"5.4.151","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.71","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.14.10","lessThanOrEqual":"5.14.*","status":"unaffected","versionType":"semver"},{"version":"5.15","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":"5.4","versionEndExcluding":"5.4.151"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.10.71"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.14.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.15"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/6cb01fe630eaffc5a2c3f7364436caddba286623"},{"url":"https://git.kernel.org/stable/c/7c4fd5de39f273626a2b0f3a446d2cc85cd47616"},{"url":"https://git.kernel.org/stable/c/746011193f44f97f8784edcf8327c587946745fc"},{"url":"https://git.kernel.org/stable/c/dd4d747ef05addab887dc8ff0d6ab9860bbcd783"}],"title":"hwmon: (w83793) Fix NULL pointer dereference by removing unnecessary structure field","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","description":"CWE-noinfo Not enough information"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-05-21T18:21:42.087450Z","id":"CVE-2021-47384","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-11-06T18:44:47.091Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:39:59.383Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/6cb01fe630eaffc5a2c3f7364436caddba286623","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/7c4fd5de39f273626a2b0f3a446d2cc85cd47616","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/746011193f44f97f8784edcf8327c587946745fc","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/dd4d747ef05addab887dc8ff0d6ab9860bbcd783","tags":["x_transferred"]}]}]}}