CVE-2022-48830

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-48830", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.904Z", "datePublished": "2024-07-16T11:44:13.987Z", "dateUpdated": "2026-08-05T08:52:35.367Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:52:35.367Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: fix potential CAN frame reception race in isotp_rcv()\n\nWhen receiving a CAN frame the current code logic does not consider\nconcurrently receiving processes which do not show up in real world\nusage.\n\nZiyang Xuan writes:\n\nThe following syz problem is one of the scenarios. so->rx.len is\nchanged by isotp_rcv_ff() during isotp_rcv_cf(), so->rx.len equals\n0 before alloc_skb() and equals 4096 after alloc_skb(). That will\ntrigger skb_over_panic() in skb_put().\n\n=======================================================\nCPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc8-syzkaller #0\nRIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113\nCall Trace:\n <TASK>\n skb_over_panic net/core/skbuff.c:118 [inline]\n skb_put.cold+0x24/0x24 net/core/skbuff.c:1990\n isotp_rcv_cf net/can/isotp.c:570 [inline]\n isotp_rcv+0xa38/0x1e30 net/can/isotp.c:668\n deliver net/can/af_can.c:574 [inline]\n can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635\n can_receive+0x31d/0x580 net/can/af_can.c:665\n can_rcv+0x120/0x1c0 net/can/af_can.c:696\n __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465\n __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579\n\nTherefore we make sure the state changes and data structures stay\nconsistent at CAN frame reception time by adding a spin_lock in\nisotp_rcv(). This fixes the issue reported by syzkaller but does not\naffect real world operation."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:A - The bug is in isotp_rcv() on the SocketCAN receive path (can_rcv \u2192 can_receive \u2192 can_rcv_filter \u2192 deliver), reached when CAN frames matching a bound ISOTP rx_id arrive on the bus\u2014an adjacent shared-segment network like automotive/industrial CAN, analogous to Bluetooth.\nAC:L - The attacker controls both sides of the race by injecting concurrent First Frame and Consecutive Frame traffic for the same CAN ID so SMP softirq contexts run isotp_rcv_ff() and isotp_rcv_cf() in parallel, as syzkaller demonstrated; no attacker-uncontrollable condition is required.\nPR:N - Classic CAN/ISO-TP reception has no authentication; once a victim ISOTP socket is bound (normal for UDS/diagnostics), an unauthenticated bus peer can trigger the path with no host credentials or capabilities.\nUI:N - Frames are processed automatically in softirq once an ISOTP socket is bound and the CAN interface is up; no victim mount, open, or other interactive action is required.\nS:U - Corruption is confined to in-kernel ISOTP/socket heap state within the same OS security authority; there is no VM escape, IOMMU bypass, or other cross-boundary impact.\nC:H - Concurrent isotp_rcv_ff() can inflate so->rx.len past the fixed rx.buf[MAX_MSG_LENGTH+1] while isotp_rcv_cf() still writes, yielding a heap out-of-bounds access; under kernel OOB/memory-corruption guidance this supports high confidentiality impact.\nI:H - The same unlocked FF/CF race allows out-of-bounds writes into the embedded tpcon buffer and adjacent isotp_sock fields, a heap corruption primitive suitable for integrity/control-flow impact when scored conservatively.\nA:H - The documented race makes alloc_skb()/skb_put() use an inconsistent so->rx.len and triggers skb_over_panic()/BUG in softirq, which is a full kernel availability failure that an adjacent peer can repeat at will."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/can/isotp.c"], "versions": [{"version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "lessThan": "7b53d2204ce79b27a878074a77d64f40ec21dbca", "status": "affected", "versionType": "git"}, {"version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "lessThan": "f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3", "status": "affected", "versionType": "git"}, {"version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "lessThan": "5b068f33bc8acfcfd5ea7992a2dafb30d89bad30", "status": "affected", "versionType": "git"}, {"version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "lessThan": "7c759040c1dd03954f650f147ae7175476d51314", "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/can/isotp.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.101", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.24", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16.10", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17", "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": "5.10.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.15.24"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.16.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/7b53d2204ce79b27a878074a77d64f40ec21dbca"}, {"url": "https://git.kernel.org/stable/c/f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3"}, {"url": "https://git.kernel.org/stable/c/5b068f33bc8acfcfd5ea7992a2dafb30d89bad30"}, {"url": "https://git.kernel.org/stable/c/7c759040c1dd03954f650f147ae7175476d51314"}], "title": "can: isotp: fix potential CAN frame reception race in isotp_rcv()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.526Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/7b53d2204ce79b27a878074a77d64f40ec21dbca", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/5b068f33bc8acfcfd5ea7992a2dafb30d89bad30", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/7c759040c1dd03954f650f147ae7175476d51314", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48830", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:57:30.557476Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:11.140Z"}}]}}

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no attacker-uncontrollable condition is required.\nPR:N - Classic CAN/ISO-TP reception has no authentication; once a victim ISOTP socket is bound (normal for UDS/diagnostics), an unauthenticated bus peer can trigger the path with no host credentials or capabilities.\nUI:N - Frames are processed automatically in softirq once an ISOTP socket is bound and the CAN interface is up; no victim mount, open, or other interactive action is required.\nS:U - Corruption is confined to in-kernel ISOTP/socket heap state within the same OS security authority; there is no VM escape, IOMMU bypass, or other cross-boundary impact.\nC:H - Concurrent isotp_rcv_ff() can inflate so->rx.len past the fixed rx.buf[MAX_MSG_LENGTH+1] while isotp_rcv_cf() still writes, yielding a heap out-of-bounds access; under kernel OOB/memory-corruption guidance this supports high confidentiality impact.\nI:H - The same unlocked FF/CF race allows out-of-bounds writes into the embedded tpcon buffer and adjacent isotp_sock fields, a heap corruption primitive suitable for integrity/control-flow impact when scored conservatively.\nA:H - The documented race makes alloc_skb()/skb_put() use an inconsistent so->rx.len and triggers skb_over_panic()/BUG in softirq, which is a full kernel availability failure that an adjacent peer can repeat at will."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "lessThan": "7b53d2204ce79b27a878074a77d64f40ec21dbca", "versionType": "git"}, {"status": "affected", "version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "lessThan": "f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3", "versionType": "git"}, {"status": "affected", "version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "lessThan": "5b068f33bc8acfcfd5ea7992a2dafb30d89bad30", "versionType": "git"}, {"status": "affected", "version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "lessThan": "7c759040c1dd03954f650f147ae7175476d51314", "versionType": "git"}], "programFiles": ["net/can/isotp.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"status": "unaffected", "version": "0", "lessThan": "5.10", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.101", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.24", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16.10", "versionType": "semver", "lessThanOrEqual": "5.16.*"}, {"status": "unaffected", "version": "5.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/can/isotp.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/7b53d2204ce79b27a878074a77d64f40ec21dbca"}, {"url": "https://git.kernel.org/stable/c/f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3"}, {"url": "https://git.kernel.org/stable/c/5b068f33bc8acfcfd5ea7992a2dafb30d89bad30"}, {"url": "https://git.kernel.org/stable/c/7c759040c1dd03954f650f147ae7175476d51314"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: fix potential CAN frame reception race in isotp_rcv()\n\nWhen receiving a CAN frame the current code logic does not consider\nconcurrently receiving processes which do not show up in real world\nusage.\n\nZiyang Xuan writes:\n\nThe following syz problem is one of the scenarios. so->rx.len is\nchanged by isotp_rcv_ff() during isotp_rcv_cf(), so->rx.len equals\n0 before alloc_skb() and equals 4096 after alloc_skb(). That will\ntrigger skb_over_panic() in skb_put().\n\n=======================================================\nCPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc8-syzkaller #0\nRIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113\nCall Trace:\n <TASK>\n skb_over_panic net/core/skbuff.c:118 [inline]\n skb_put.cold+0x24/0x24 net/core/skbuff.c:1990\n isotp_rcv_cf net/can/isotp.c:570 [inline]\n isotp_rcv+0xa38/0x1e30 net/can/isotp.c:668\n deliver net/can/af_can.c:574 [inline]\n can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635\n can_receive+0x31d/0x580 net/can/af_can.c:665\n can_rcv+0x120/0x1c0 net/can/af_can.c:696\n __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465\n __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579\n\nTherefore we make sure the state changes and data structures stay\nconsistent at CAN frame reception time by adding a spin_lock in\nisotp_rcv(). This fixes the issue reported by syzkaller but does not\naffect real world operation."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.101", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.24", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.16.10", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.17", "versionStartIncluding": "5.10"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:52:35.367Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48830", "state": "PUBLISHED", "dateUpdated": "2026-08-05T08:52:35.367Z", "dateReserved": "2024-07-16T11:38:08.904Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-07-16T11:44:13.987Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/can/isotp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "7b53d2204ce79b27a878074a77d64f40ec21dbca", "status": "affected", "version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "versionType": "git"}, {"lessThan": "f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3", "status": "affected", "version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "versionType": "git"}, {"lessThan": "5b068f33bc8acfcfd5ea7992a2dafb30d89bad30", "status": "affected", "version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "versionType": "git"}, {"lessThan": "7c759040c1dd03954f650f147ae7175476d51314", "status": "affected", "version": "e057dd3fc20ffb3d7f150af46542a51b59b90127", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/can/isotp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"lessThan": "5.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.101", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.24", "versionType": "semver"}, {"lessThanOrEqual": "5.16.*", "status": "unaffected", "version": "5.16.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.17", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "576AFC93-F877-43B1-9500-6CF510FDE4D0", "versionEndExcluding": "5.10.101", "versionStartIncluding": "5.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "866451F0-299E-416C-B0B8-AE6B33E62CCA", "versionEndExcluding": "5.15.24", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "679523BA-1392-404B-AB85-F5A5408B1ECC", "versionEndExcluding": "5.16.10", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*", "matchCriteriaId": "7BD5F8D9-54FA-4CB0-B4F0-CB0471FDDB2D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*", "matchCriteriaId": "E6E34B23-78B4-4516-9BD8-61B33F4AC49A", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*", "matchCriteriaId": "C030FA3D-03F4-4FB9-9DBF-D08E5CAC51AA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: fix potential CAN frame reception race in isotp_rcv()\n\nWhen receiving a CAN frame the current code logic does not consider\nconcurrently receiving processes which do not show up in real world\nusage.\n\nZiyang Xuan writes:\n\nThe following syz problem is one of the scenarios. so->rx.len is\nchanged by isotp_rcv_ff() during isotp_rcv_cf(), so->rx.len equals\n0 before alloc_skb() and equals 4096 after alloc_skb(). That will\ntrigger skb_over_panic() in skb_put().\n\n=======================================================\nCPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc8-syzkaller #0\nRIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113\nCall Trace:\n <TASK>\n skb_over_panic net/core/skbuff.c:118 [inline]\n skb_put.cold+0x24/0x24 net/core/skbuff.c:1990\n isotp_rcv_cf net/can/isotp.c:570 [inline]\n isotp_rcv+0xa38/0x1e30 net/can/isotp.c:668\n deliver net/can/af_can.c:574 [inline]\n can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635\n can_receive+0x31d/0x580 net/can/af_can.c:665\n can_rcv+0x120/0x1c0 net/can/af_can.c:696\n __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465\n __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579\n\nTherefore we make sure the state changes and data structures stay\nconsistent at CAN frame reception time by adding a spin_lock in\nisotp_rcv(). This fixes the issue reported by syzkaller but does not\naffect real world operation."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: isotp: corrige una posible ejecuci\u00f3n de recepci\u00f3n de tramas CAN en isotp_rcv() Al recibir una trama CAN, la l\u00f3gica del c\u00f3digo actual no considera la recepci\u00f3n simult\u00e1nea de procesos que no aparecen en el uso en el mundo real. Ziyang Xuan escribe: El siguiente problema syz es uno de los escenarios. so-&gt;rx.len es cambiado por isotp_rcv_ff() durante isotp_rcv_cf(), so-&gt;rx.len es igual a 0 antes de alloc_skb() y es igual a 4096 despu\u00e9s de alloc_skb(). Eso activar\u00e1 skb_over_panic() en skb_put(). ==================================================== ===== CPU: 1 PID: 19 Comm: ksoftirqd/1 No contaminado 5.16.0-rc8-syzkaller #0 RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113 Seguimiento de llamadas: skb_over_panic net/core/skbuff.c:118 [en l\u00ednea] skb_put.cold+0x24/0x24 net/core/skbuff.c:1990 isotp_rcv_cf net/can/isotp.c:570 [en l\u00ednea] isotp_rcv+0xa38/0x1e30 net/ can/isotp.c:668 entregar net/can/af_can.c:574 [en l\u00ednea] can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635 can_receive+0x31d/0x580 net/can/af_can.c:665 can_rcv+ 0x120/0x1c0 net/can/af_can.c:696 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579 Por lo tanto, nos aseguramos de que los cambios de estado y las estructuras de datos mantenga la coherencia en el momento de recepci\u00f3n de la trama CAN agregando un spin_lock en isotp_rcv(). Esto soluciona el problema informado por syzkaller pero no afecta el funcionamiento en el mundo real."}], "id": "CVE-2022-48830", "lastModified": "2026-08-04T10:17:23.567", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-48830", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T16:57:30.557476Z", "version": "2.0.3"}}]}, "published": "2024-07-16T12:15:06.613", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5b068f33bc8acfcfd5ea7992a2dafb30d89bad30"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b53d2204ce79b27a878074a77d64f40ec21dbca"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7c759040c1dd03954f650f147ae7175476d51314"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5b068f33bc8acfcfd5ea7992a2dafb30d89bad30"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b53d2204ce79b27a878074a77d64f40ec21dbca"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7c759040c1dd03954f650f147ae7175476d51314"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: can: isotp: fix potential CAN frame reception race in isotp_rcv()", "id": "2298169", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2298169"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncan: isotp: fix potential CAN frame reception race in isotp_rcv()\nWhen receiving a CAN frame the current code logic does not consider\nconcurrently receiving processes which do not show up in real world\nusage.\nZiyang Xuan writes:\nThe following syz problem is one of the scenarios. so->rx.len is\nchanged by isotp_rcv_ff() during isotp_rcv_cf(), so->rx.len equals\n0 before alloc_skb() and equals 4096 after alloc_skb(). That will\ntrigger skb_over_panic() in skb_put().\n=======================================================\nCPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc8-syzkaller #0\nRIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113\nCall Trace:\n<TASK>\nskb_over_panic net/core/skbuff.c:118 [inline]\nskb_put.cold+0x24/0x24 net/core/skbuff.c:1990\nisotp_rcv_cf net/can/isotp.c:570 [inline]\nisotp_rcv+0xa38/0x1e30 net/can/isotp.c:668\ndeliver net/can/af_can.c:574 [inline]\ncan_rcv_filter+0x445/0x8d0 net/can/af_can.c:635\ncan_receive+0x31d/0x580 net/can/af_can.c:665\ncan_rcv+0x120/0x1c0 net/can/af_can.c:696\n__netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465\n__netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579\nTherefore we make sure the state changes and data structures stay\nconsistent at CAN frame reception time by adding a spin_lock in\nisotp_rcv(). This fixes the issue reported by syzkaller but does not\naffect real world operation.", "A potential CAN frame reception race flaw was found in isotp_rcv() in the Linux kernel. This vulnerability may lead to a crash."], "name": "CVE-2022-48830", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-07-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48830\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48830\nhttps://lore.kernel.org/linux-cve-announce/2024071652-CVE-2022-48830-8dbf@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T21:07:01.196855+00:00", "updated": "2025-07-13T21:07:01.196927+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}