{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-49659","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-02-26T02:21:30.434Z","datePublished":"2025-02-26T02:23:57.411Z","dateUpdated":"2025-05-04T08:42:45.738Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T08:42:45.738Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: m_can: m_can_{read_fifo,echo_tx_event}(): shift timestamp to full 32 bits\n\nIn commit 1be37d3b0414 (\"can: m_can: fix periph RX path: use\nrx-offload to ensure skbs are sent from softirq context\") the RX path\nfor peripheral devices was switched to RX-offload.\n\nReceived CAN frames are pushed to RX-offload together with a\ntimestamp. RX-offload is designed to handle overflows of the timestamp\ncorrectly, if 32 bit timestamps are provided.\n\nThe timestamps of m_can core are only 16 bits wide. So this patch\nshifts them to full 32 bit before passing them to RX-offload."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/can/m_can/m_can.c"],"versions":[{"version":"1be37d3b0414e3db47f6fcba6c16286bbae0cb65","lessThan":"c7333f79888497bfd75dcd02a94eaf836dd1042c","status":"affected","versionType":"git"},{"version":"1be37d3b0414e3db47f6fcba6c16286bbae0cb65","lessThan":"2a2914a5bd7f38efe55a8372178146de82e0bce9","status":"affected","versionType":"git"},{"version":"1be37d3b0414e3db47f6fcba6c16286bbae0cb65","lessThan":"4c3333693f07313f5f0145a922f14a7d3c0f4f21","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/m_can/m_can.c"],"versions":[{"version":"5.13","status":"affected"},{"version":"0","lessThan":"5.13","status":"unaffected","versionType":"semver"},{"version":"5.15.54","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.18.11","lessThanOrEqual":"5.18.*","status":"unaffected","versionType":"semver"},{"version":"5.19","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":"5.13","versionEndExcluding":"5.15.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.18.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c7333f79888497bfd75dcd02a94eaf836dd1042c"},{"url":"https://git.kernel.org/stable/c/2a2914a5bd7f38efe55a8372178146de82e0bce9"},{"url":"https://git.kernel.org/stable/c/4c3333693f07313f5f0145a922f14a7d3c0f4f21"}],"title":"can: m_can: m_can_{read_fifo,echo_tx_event}(): shift timestamp to full 32 bits","x_generator":{"engine":"bippy-1.2.0"}}}}