{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47186","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-03-25T09:12:14.113Z","datePublished":"2024-04-10T18:56:26.297Z","dateUpdated":"2025-05-20T14:27:26.664Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-20T14:27:26.664Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: check for null after calling kmemdup\n\nkmemdup can return a null pointer so need to check for it, otherwise\nthe null key will be dereferenced later in tipc_crypto_key_xmit as\ncan be seen in the trace [1].\n\n\n[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/tipc/crypto.c"],"versions":[{"version":"1ef6f7c9390ff5308c940ff8d0a53533a4673ad9","lessThan":"a7d91625863d4ffed63b993b5e6dc1298b6430c9","status":"affected","versionType":"git"},{"version":"1ef6f7c9390ff5308c940ff8d0a53533a4673ad9","lessThan":"9404c4145542c23019a80ab1bb2ecf73cd057b10","status":"affected","versionType":"git"},{"version":"1ef6f7c9390ff5308c940ff8d0a53533a4673ad9","lessThan":"3e6db079751afd527bf3db32314ae938dc571916","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/tipc/crypto.c"],"versions":[{"version":"5.10","status":"affected"},{"version":"0","lessThan":"5.10","status":"unaffected","versionType":"semver"},{"version":"5.10.82","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.5","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":"5.10","versionEndExcluding":"5.10.82"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.15.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9"},{"url":"https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10"},{"url":"https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916"}],"title":"tipc: check for null after calling kmemdup","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"affected":[{"vendor":"linux","product":"linux_kernel","cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"1da177e4c3f4","status":"affected","lessThan":"a7d91625863d","versionType":"custom"},{"version":"1da177e4c3f4","status":"affected","lessThan":"9404c4145542","versionType":"custom"},{"version":"1da177e4c3f4","status":"affected","lessThan":"3e6db079751a","versionType":"custom"},{"version":"5.10.82","status":"unaffected","lessThanOrEqual":"5.11","versionType":"custom"},{"version":"5.15.5","status":"unaffected","lessThanOrEqual":"5.16","versionType":"custom"},{"version":"5.16","status":"unaffected"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-04-15T14:53:12.521984Z","id":"CVE-2021-47186","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"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":"2025-02-21T17:04:55.843Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:32:07.381Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916","tags":["x_transferred"]}]}]}}