{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49863", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-01T14:05:17.236Z", "datePublished": "2025-05-01T14:10:16.403Z", "dateUpdated": "2026-05-23T15:23:04.788Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:23:04.788Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: af_can: fix NULL pointer dereference in can_rx_register()\n\nIt causes NULL pointer dereference when testing as following:\n(a) use syscall(__NR_socket, 0x10ul, 3ul, 0) to create netlink socket.\n(b) use syscall(__NR_sendmsg, ...) to create bond link device and vxcan\n link device, and bind vxcan device to bond device (can also use\n ifenslave command to bind vxcan device to bond device).\n(c) use syscall(__NR_socket, 0x1dul, 3ul, 1) to create CAN socket.\n(d) use syscall(__NR_bind, ...) to bind the bond device to CAN socket.\n\nThe bond device invokes the can-raw protocol registration interface to\nreceive CAN packets. However, ml_priv is not allocated to the dev,\ndev_rcv_lists is assigned to NULL in can_rx_register(). In this case,\nit will occur the NULL pointer dereference issue.\n\nThe following is the stack information:\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nPGD 122a4067 P4D 122a4067 PUD 1223c067 PMD 0\nOops: 0000 [#1] PREEMPT SMP\nRIP: 0010:can_rx_register+0x12d/0x1e0\nCall Trace:\n\nraw_enable_filters+0x8d/0x120\nraw_enable_allfilters+0x3b/0x130\nraw_bind+0x118/0x4f0\n__sys_bind+0x163/0x1a0\n__x64_sys_bind+0x1e/0x30\ndo_syscall_64+0x35/0x80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/can/af_can.c" ], "versions": [ { "version": "4ac1feff6ea6495cbfd336f4438a6c6d140544a6", "lessThan": "afab4655750fcb3fca359bc7d7214e3d634cdf9c", "status": "affected", "versionType": "git" }, { "version": "1a5751d58b14195f763b8c1d9ef33fb8a93e95e7", "lessThan": "d68fa77ee3d03bad6fe84e89759ddf7005f9e9c6", "status": "affected", "versionType": "git" }, { "version": "4e096a18867a5a989b510f6999d9c6b6622e8f7b", "lessThan": "261178a1c2623077d62e374a75c195e6c99a6f05", "status": "affected", "versionType": "git" }, { "version": "4e096a18867a5a989b510f6999d9c6b6622e8f7b", "lessThan": "a8055677b054bc2bb78beb1080fdc2dc5158c2fe", "status": "affected", "versionType": "git" }, { "version": "4e096a18867a5a989b510f6999d9c6b6622e8f7b", "lessThan": "8aa59e355949442c408408c2d836e561794c40a1", "status": "affected", "versionType": "git" }, { "version": "96340078d50a54f6a1252c62596bc44321c8bff9", "status": "affected", "versionType": "git" }, { "version": "5.4.110", "lessThan": "5.4.225", "status": "affected", "versionType": "semver" }, { "version": "5.10.28", "lessThan": "5.10.155", "status": "affected", "versionType": "semver" }, { "version": "5.11.12", "lessThan": "5.12", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/can/af_can.c" ], "versions": [ { "version": "5.12", "status": "affected" }, { "version": "0", "lessThan": "5.12", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.225", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.155", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.79", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.9", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1", "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": "5.4.110", "versionEndExcluding": "5.4.225" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.28", "versionEndExcluding": "5.10.155" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "5.15.79" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.0.9" }, { "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" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/afab4655750fcb3fca359bc7d7214e3d634cdf9c" }, { "url": "https://git.kernel.org/stable/c/d68fa77ee3d03bad6fe84e89759ddf7005f9e9c6" }, { "url": "https://git.kernel.org/stable/c/261178a1c2623077d62e374a75c195e6c99a6f05" }, { "url": "https://git.kernel.org/stable/c/a8055677b054bc2bb78beb1080fdc2dc5158c2fe" }, { "url": "https://git.kernel.org/stable/c/8aa59e355949442c408408c2d836e561794c40a1" } ], "title": "can: af_can: fix NULL pointer dereference in can_rx_register()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-476", "lang": "en", "description": "CWE-476 NULL Pointer Dereference" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2025-10-01T16:11:25.503445Z", "id": "CVE-2022-49863", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "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": "2025-10-01T16:11:28.153Z" } } ] } }