{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-46998","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-27T18:42:55.950Z","datePublished":"2024-02-28T08:13:21.651Z","dateUpdated":"2025-05-04T07:02:00.757Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:02:00.757Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nethernet:enic: Fix a use after free bug in enic_hard_start_xmit\n\nIn enic_hard_start_xmit, it calls enic_queue_wq_skb(). Inside\nenic_queue_wq_skb, if some error happens, the skb will be freed\nby dev_kfree_skb(skb). But the freed skb is still used in\nskb_tx_timestamp(skb).\n\nMy patch makes enic_queue_wq_skb() return error and goto spin_unlock()\nincase of error. The solution is provided by Govind.\nSee https://lkml.org/lkml/2021/4/30/961."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cisco/enic/enic_main.c"],"versions":[{"version":"fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3","lessThan":"25a87b1f566b5eb2af2857a928f0e2310d900976","status":"affected","versionType":"git"},{"version":"fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3","lessThan":"f7f6f07774091a6ddd98500b85386c3c6afb30d3","status":"affected","versionType":"git"},{"version":"fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3","lessThan":"7afdd6aba95c8a526038e7abe283eeac3e4320f1","status":"affected","versionType":"git"},{"version":"fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3","lessThan":"6892396ebf04ea2c021d80e10f4075e014cd7cc3","status":"affected","versionType":"git"},{"version":"fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3","lessThan":"d90529392aaf498dafa95d212295d64b2cea4e24","status":"affected","versionType":"git"},{"version":"fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3","lessThan":"643001b47adc844ae33510c4bb93c236667008a3","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/cisco/enic/enic_main.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/25a87b1f566b5eb2af2857a928f0e2310d900976"},{"url":"https://git.kernel.org/stable/c/f7f6f07774091a6ddd98500b85386c3c6afb30d3"},{"url":"https://git.kernel.org/stable/c/7afdd6aba95c8a526038e7abe283eeac3e4320f1"},{"url":"https://git.kernel.org/stable/c/6892396ebf04ea2c021d80e10f4075e014cd7cc3"},{"url":"https://git.kernel.org/stable/c/d90529392aaf498dafa95d212295d64b2cea4e24"},{"url":"https://git.kernel.org/stable/c/643001b47adc844ae33510c4bb93c236667008a3"}],"title":"ethernet:enic: Fix a use after free bug in enic_hard_start_xmit","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:24:38.462Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/25a87b1f566b5eb2af2857a928f0e2310d900976","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/f7f6f07774091a6ddd98500b85386c3c6afb30d3","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/7afdd6aba95c8a526038e7abe283eeac3e4320f1","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/6892396ebf04ea2c021d80e10f4075e014cd7cc3","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d90529392aaf498dafa95d212295d64b2cea4e24","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/643001b47adc844ae33510c4bb93c236667008a3","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-46998","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T16:00:51.946004Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-11T17:33:36.196Z"}}]}}