{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-46994","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-27T18:42:55.949Z","datePublished":"2024-02-28T08:13:19.115Z","dateUpdated":"2025-05-04T07:01:55.985Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:01:55.985Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: mcp251x: fix resume from sleep before interface was brought up\n\nSince 8ce8c0abcba3 the driver queues work via priv->restart_work when\nresuming after suspend, even when the interface was not previously\nenabled. This causes a null dereference error as the workqueue is only\nallocated and initialized in mcp251x_open().\n\nTo fix this we move the workqueue init to mcp251x_can_probe() as there\nis no reason to do it later and repeat it whenever mcp251x_open() is\ncalled.\n\n[mkl: fix error handling in mcp251x_stop()]"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/can/spi/mcp251x.c"],"versions":[{"version":"8ce8c0abcba314e1fe954a1840f6568bf5aef2ef","lessThan":"eecb4df8ec9f896b19ee05bfa632ac6c1dcd8f21","status":"affected","versionType":"git"},{"version":"8ce8c0abcba314e1fe954a1840f6568bf5aef2ef","lessThan":"6f8f1c27b577de15f69fefce3c502bb6300d825c","status":"affected","versionType":"git"},{"version":"8ce8c0abcba314e1fe954a1840f6568bf5aef2ef","lessThan":"e1e10a390fd9479209c4d834d916ca5e6d5d396b","status":"affected","versionType":"git"},{"version":"8ce8c0abcba314e1fe954a1840f6568bf5aef2ef","lessThan":"03c427147b2d3e503af258711af4fc792b89b0af","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/can/spi/mcp251x.c"],"versions":[{"version":"5.5","status":"affected"},{"version":"0","lessThan":"5.5","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":"5.5","versionEndExcluding":"5.10.38"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.11.22"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.12.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/eecb4df8ec9f896b19ee05bfa632ac6c1dcd8f21"},{"url":"https://git.kernel.org/stable/c/6f8f1c27b577de15f69fefce3c502bb6300d825c"},{"url":"https://git.kernel.org/stable/c/e1e10a390fd9479209c4d834d916ca5e6d5d396b"},{"url":"https://git.kernel.org/stable/c/03c427147b2d3e503af258711af4fc792b89b0af"}],"title":"can: mcp251x: fix resume from sleep before interface was brought up","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:24:38.558Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/eecb4df8ec9f896b19ee05bfa632ac6c1dcd8f21","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/6f8f1c27b577de15f69fefce3c502bb6300d825c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/e1e10a390fd9479209c4d834d916ca5e6d5d396b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/03c427147b2d3e503af258711af4fc792b89b0af","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-46994","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T16:00:58.367712Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-11T17:33:38.479Z"}}]}}