{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-46991","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-27T18:42:55.949Z","datePublished":"2024-02-28T08:13:17.195Z","dateUpdated":"2025-05-04T07:01:52.574Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:01:52.574Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: Fix use-after-free in i40e_client_subtask()\n\nCurrently the call to i40e_client_del_instance frees the object\npf->cinst, however pf->cinst->lan_info is being accessed after\nthe free. Fix this by adding the missing return.\n\nAddresses-Coverity: (\"Read from pointer after free\")"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/i40e/i40e_client.c"],"versions":[{"version":"7b0b1a6d0ac983ce1928432285d0222d4fb7c38b","lessThan":"c1322eaeb8af0d8985b5cc5fa759140fa0e57b84","status":"affected","versionType":"git"},{"version":"7b0b1a6d0ac983ce1928432285d0222d4fb7c38b","lessThan":"d718c15a2bf9ae082d5ae4d177fb19ef23cb4132","status":"affected","versionType":"git"},{"version":"7b0b1a6d0ac983ce1928432285d0222d4fb7c38b","lessThan":"829a713450b8fb127cbabfc1244c1d8179ec5107","status":"affected","versionType":"git"},{"version":"7b0b1a6d0ac983ce1928432285d0222d4fb7c38b","lessThan":"4ebc10aa7cd17fd9857dedac69600465c9dd16d1","status":"affected","versionType":"git"},{"version":"7b0b1a6d0ac983ce1928432285d0222d4fb7c38b","lessThan":"1fd5d262e7442192ac7611ff1597a36c5b044323","status":"affected","versionType":"git"},{"version":"7b0b1a6d0ac983ce1928432285d0222d4fb7c38b","lessThan":"38318f23a7ef86a8b1862e5e8078c4de121960c3","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/net/ethernet/intel/i40e/i40e_client.c"],"versions":[{"version":"4.16","status":"affected"},{"version":"0","lessThan":"4.16","status":"unaffected","versionType":"semver"},{"version":"4.19.191","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.120","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.38","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.11.22","lessThanOrEqual":"5.11.*","status":"unaffected","versionType":"semver"},{"version":"5.12.5","lessThanOrEqual":"5.12.*","status":"unaffected","versionType":"semver"},{"version":"5.13","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":"4.16","versionEndExcluding":"4.19.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.4.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.10.38"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.11.22"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.12.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c1322eaeb8af0d8985b5cc5fa759140fa0e57b84"},{"url":"https://git.kernel.org/stable/c/d718c15a2bf9ae082d5ae4d177fb19ef23cb4132"},{"url":"https://git.kernel.org/stable/c/829a713450b8fb127cbabfc1244c1d8179ec5107"},{"url":"https://git.kernel.org/stable/c/4ebc10aa7cd17fd9857dedac69600465c9dd16d1"},{"url":"https://git.kernel.org/stable/c/1fd5d262e7442192ac7611ff1597a36c5b044323"},{"url":"https://git.kernel.org/stable/c/38318f23a7ef86a8b1862e5e8078c4de121960c3"}],"title":"i40e: Fix use-after-free in i40e_client_subtask()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-46991","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-02-28T20:37:08.164275Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:13:14.823Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:24:38.447Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/c1322eaeb8af0d8985b5cc5fa759140fa0e57b84","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d718c15a2bf9ae082d5ae4d177fb19ef23cb4132","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/829a713450b8fb127cbabfc1244c1d8179ec5107","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/4ebc10aa7cd17fd9857dedac69600465c9dd16d1","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/1fd5d262e7442192ac7611ff1597a36c5b044323","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/38318f23a7ef86a8b1862e5e8078c4de121960c3","tags":["x_transferred"]}]}]}}