{"id":"CVE-2022-48977","state":"PUBLISHED","title":"can: af_can: fix NULL pointer dereference in can_rcv_filter","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: af_can: fix NULL pointer dereference in can_rcv_filter\n\nAnalogue to commit 8aa59e355949 (\"can: af_can: fix NULL pointer\ndereference in can_rx_register()\") we need to check for a missing\ninitialization of ml_priv in the receive path of CAN frames.\n\nSince commit 4e096a18867a (\"net: introduce CAN specific pointer in the\nstruct net_device\") the check for dev->type to be ARPHRD_CAN is not\nsufficient anymore since bonding or tun netdevices claim to be CAN\ndevices but do not initialize ml_priv accordingly.","publishedAt":"2024-10-21T20:05:56.389Z","updatedAt":"2026-05-23T15:21:15.559Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4ac1feff6ea6495cbfd336f4438a6c6d140544a6","status":"affected","lessThan":"3982652957e8d79ac32efcb725450580650a8644","versionType":"git"},{"version":"1a5751d58b14195f763b8c1d9ef33fb8a93e95e7","status":"affected","lessThan":"c42221efb1159d6a3c89e96685ee38acdce86b6f","versionType":"git"},{"version":"4e096a18867a5a989b510f6999d9c6b6622e8f7b","status":"affected","lessThan":"c142cba37de29f740a3852f01f59876af8ae462a","versionType":"git"},{"version":"4e096a18867a5a989b510f6999d9c6b6622e8f7b","status":"affected","lessThan":"fcc63f2f7ee3038d53216edd0d8291e57c752557","versionType":"git"},{"version":"4e096a18867a5a989b510f6999d9c6b6622e8f7b","status":"affected","lessThan":"0acc442309a0a1b01bcdaa135e56e6398a49439c","versionType":"git"},{"version":"96340078d50a54f6a1252c62596bc44321c8bff9","status":"affected","versionType":"git"},{"version":"5.4.110","status":"affected","lessThan":"5.4.227","versionType":"semver"},{"version":"5.10.28","status":"affected","lessThan":"5.10.159","versionType":"semver"},{"version":"5.11.12","status":"affected","lessThan":"5.12","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/can/af_can.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.12","versionType":"semver"},{"version":"5.4.227","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.159","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.83","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.13","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/can/af_can.c"]}],"references":["https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644","https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f","https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a","https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557","https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/48xxx/CVE-2022-48977.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-48977","state":"PUBLISHED","datePublished":"2024-10-21T20:05:56.389Z","dateUpdated":"2026-05-23T15:21:15.559Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-08-22T01:27:53.632Z"},"containers":{"cna":{"title":"can: af_can: fix NULL pointer dereference in can_rcv_filter","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: af_can: fix NULL pointer dereference in can_rcv_filter\n\nAnalogue to commit 8aa59e355949 (\"can: af_can: fix NULL pointer\ndereference in can_rx_register()\") we need to check for a missing\ninitialization of ml_priv in the receive path of CAN frames.\n\nSince commit 4e096a18867a (\"net: introduce CAN specific pointer in the\nstruct net_device\") the check for dev->type to be ARPHRD_CAN is not\nsufficient anymore since bonding or tun netdevices claim to be CAN\ndevices but do not initialize ml_priv accordingly."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4ac1feff6ea6495cbfd336f4438a6c6d140544a6","status":"affected","lessThan":"3982652957e8d79ac32efcb725450580650a8644","versionType":"git"},{"version":"1a5751d58b14195f763b8c1d9ef33fb8a93e95e7","status":"affected","lessThan":"c42221efb1159d6a3c89e96685ee38acdce86b6f","versionType":"git"},{"version":"4e096a18867a5a989b510f6999d9c6b6622e8f7b","status":"affected","lessThan":"c142cba37de29f740a3852f01f59876af8ae462a","versionType":"git"},{"version":"4e096a18867a5a989b510f6999d9c6b6622e8f7b","status":"affected","lessThan":"fcc63f2f7ee3038d53216edd0d8291e57c752557","versionType":"git"},{"version":"4e096a18867a5a989b510f6999d9c6b6622e8f7b","status":"affected","lessThan":"0acc442309a0a1b01bcdaa135e56e6398a49439c","versionType":"git"},{"version":"96340078d50a54f6a1252c62596bc44321c8bff9","status":"affected","versionType":"git"},{"version":"5.4.110","status":"affected","lessThan":"5.4.227","versionType":"semver"},{"version":"5.10.28","status":"affected","lessThan":"5.10.159","versionType":"semver"},{"version":"5.11.12","status":"affected","lessThan":"5.12","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/can/af_can.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.12","versionType":"semver"},{"version":"5.4.227","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.159","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.83","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.13","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/can/af_can.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644"},{"url":"https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f"},{"url":"https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a"},{"url":"https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557"},{"url":"https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:21:15.559Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.110","versionEndExcluding":"5.4.227"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.28","versionEndExcluding":"5.10.159"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"5.15.83"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11.12"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2022-48977","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-10-22T13:18:20.904853Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-10-22T13:18:44.387Z"}}]}}}