{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-46934","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-25T13:45:52.720Z","datePublished":"2024-02-27T09:44:01.411Z","dateUpdated":"2025-05-04T07:00:38.333Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:00:38.333Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: validate user data in compat ioctl\n\nWrong user data may cause warning in i2c_transfer(), ex: zero msgs.\nUserspace should not be able to trigger warnings, so this patch adds\nvalidation checks for user data in compact ioctl to prevent reported\nwarnings"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/i2c/i2c-dev.c"],"versions":[{"version":"7d5cb45655f2e9e37ef75d18f50c0072ef14a38b","lessThan":"407c8708fb1bf2d4afc5337ef50635cf540c364b","status":"affected","versionType":"git"},{"version":"7d5cb45655f2e9e37ef75d18f50c0072ef14a38b","lessThan":"9e4a3f47eff476097e0c7faac04d1831fc70237d","status":"affected","versionType":"git"},{"version":"7d5cb45655f2e9e37ef75d18f50c0072ef14a38b","lessThan":"8d31cbab4c295d7010ebb729e9d02d0e9cece18f","status":"affected","versionType":"git"},{"version":"7d5cb45655f2e9e37ef75d18f50c0072ef14a38b","lessThan":"f68599581067e8a5a8901ba9eb270b4519690e26","status":"affected","versionType":"git"},{"version":"7d5cb45655f2e9e37ef75d18f50c0072ef14a38b","lessThan":"bb436283e25aaf1533ce061605d23a9564447bdf","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/i2c/i2c-dev.c"],"versions":[{"version":"4.15","status":"affected"},{"version":"0","lessThan":"4.15","status":"unaffected","versionType":"semver"},{"version":"4.19.224","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.170","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.90","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.13","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.16","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":"4.15","versionEndExcluding":"4.19.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.4.170"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.10.90"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.15.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/407c8708fb1bf2d4afc5337ef50635cf540c364b"},{"url":"https://git.kernel.org/stable/c/9e4a3f47eff476097e0c7faac04d1831fc70237d"},{"url":"https://git.kernel.org/stable/c/8d31cbab4c295d7010ebb729e9d02d0e9cece18f"},{"url":"https://git.kernel.org/stable/c/f68599581067e8a5a8901ba9eb270b4519690e26"},{"url":"https://git.kernel.org/stable/c/bb436283e25aaf1533ce061605d23a9564447bdf"}],"title":"i2c: validate user data in compat ioctl","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-46934","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-03-05T16:18:35.081460Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-07-05T17:21:06.191Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:17:42.874Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/407c8708fb1bf2d4afc5337ef50635cf540c364b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9e4a3f47eff476097e0c7faac04d1831fc70237d","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/8d31cbab4c295d7010ebb729e9d02d0e9cece18f","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/f68599581067e8a5a8901ba9eb270b4519690e26","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/bb436283e25aaf1533ce061605d23a9564447bdf","tags":["x_transferred"]}]}]}}