{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-49066", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T01:49:39.244Z", "datePublished": "2025-02-26T01:54:34.395Z", "dateUpdated": "2026-05-11T18:52:22.189Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:52:22.189Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nveth: Ensure eth header is in skb's linear part\n\nAfter feeding a decapsulated packet to a veth device with act_mirred,\nskb_headlen() may be 0. But veth_xmit() calls __dev_forward_skb(),\nwhich expects at least ETH_HLEN byte of linear data (as\n__dev_forward_skb2() calls eth_type_trans(), which pulls ETH_HLEN bytes\nunconditionally).\n\nUse pskb_may_pull() to ensure veth_xmit() respects this constraint.\n\nkernel BUG at include/linux/skbuff.h:2328!\nRIP: 0010:eth_type_trans+0xcf/0x140\nCall Trace:\n <IRQ>\n __dev_forward_skb2+0xe3/0x160\n veth_xmit+0x6e/0x250 [veth]\n dev_hard_start_xmit+0xc7/0x200\n __dev_queue_xmit+0x47f/0x520\n ? skb_ensure_writable+0x85/0xa0\n ? skb_mpls_pop+0x98/0x1c0\n tcf_mirred_act+0x442/0x47e [act_mirred]\n tcf_action_exec+0x86/0x140\n fl_classify+0x1d8/0x1e0 [cls_flower]\n ? dma_pte_clear_level+0x129/0x1a0\n ? dma_pte_clear_level+0x129/0x1a0\n ? prb_fill_curr_block+0x2f/0xc0\n ? skb_copy_bits+0x11a/0x220\n __tcf_classify+0x58/0x110\n tcf_classify_ingress+0x6b/0x140\n __netif_receive_skb_core.constprop.0+0x47d/0xfd0\n ? __iommu_dma_unmap_swiotlb+0x44/0x90\n __netif_receive_skb_one_core+0x3d/0xa0\n netif_receive_skb+0x116/0x170\n be_process_rx+0x22f/0x330 [be2net]\n be_poll+0x13c/0x370 [be2net]\n __napi_poll+0x2a/0x170\n net_rx_action+0x22f/0x2f0\n __do_softirq+0xca/0x2a8\n __irq_exit_rcu+0xc1/0xe0\n common_interrupt+0x83/0xa0"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/veth.c"], "versions": [{"version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568", "lessThan": "3de2a02b60a4ef0ab76263216f08c7d095fc7c42", "status": "affected", "versionType": "git"}, {"version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568", "lessThan": "d417a859221f127e8edf09c14b76ab50f825e171", "status": "affected", "versionType": "git"}, {"version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568", "lessThan": "1ef0088e43af1de4e3b365218c4d3179d9a37eec", "status": "affected", "versionType": "git"}, {"version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568", "lessThan": "2fd90b86dff413fbf8128780c04ea9c6849c16e2", "status": "affected", "versionType": "git"}, {"version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568", "lessThan": "d67c900f1947d64ba8a64f693504bcaab8d9000c", "status": "affected", "versionType": "git"}, {"version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568", "lessThan": "93940fc4cb81840dc0fa202de48cccb949a0261d", "status": "affected", "versionType": "git"}, {"version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568", "lessThan": "46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27", "status": "affected", "versionType": "git"}, {"version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568", "lessThan": "726e2c5929de841fdcef4e2bf995680688ae1b87", "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/veth.c"], "versions": [{"version": "2.6.24", "status": "affected"}, {"version": "0", "lessThan": "2.6.24", "status": "unaffected", "versionType": "semver"}, {"version": "4.9.311", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.276", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.239", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.190", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.112", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.35", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.4", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18", "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": "2.6.24", "versionEndExcluding": "4.9.311"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "4.14.276"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "4.19.239"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.4.190"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.10.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.15.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.17.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3de2a02b60a4ef0ab76263216f08c7d095fc7c42"}, {"url": "https://git.kernel.org/stable/c/d417a859221f127e8edf09c14b76ab50f825e171"}, {"url": "https://git.kernel.org/stable/c/1ef0088e43af1de4e3b365218c4d3179d9a37eec"}, {"url": "https://git.kernel.org/stable/c/2fd90b86dff413fbf8128780c04ea9c6849c16e2"}, {"url": "https://git.kernel.org/stable/c/d67c900f1947d64ba8a64f693504bcaab8d9000c"}, {"url": "https://git.kernel.org/stable/c/93940fc4cb81840dc0fa202de48cccb949a0261d"}, {"url": "https://git.kernel.org/stable/c/46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27"}, {"url": "https://git.kernel.org/stable/c/726e2c5929de841fdcef4e2bf995680688ae1b87"}], "title": "veth: Ensure eth header is in skb's linear part", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "03755CB2-5811-4C2A-9848-10A1F5F86F9C", "versionEndExcluding": "4.9.311", "versionStartIncluding": "2.6.24", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6D9B028C-6313-47F9-94B7-5F8122345E49", "versionEndExcluding": "4.14.276", "versionStartIncluding": "4.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "712D9B45-4B53-4563-94B5-F758AFBBFB0D", "versionEndExcluding": "4.19.239", "versionStartIncluding": "4.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E0ADBA6D-47D8-4518-8D10-9B9196DE680B", "versionEndExcluding": "5.4.190", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0460A5D2-3024-497A-B799-23E025B91972", "versionEndExcluding": "5.10.112", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "05ABCC3F-88A9-47F9-9D40-8665747B2E43", "versionEndExcluding": "5.15.35", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E22C86CB-06CD-4D16-AB2A-F21EE8199262", "versionEndExcluding": "5.17.4", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*", "matchCriteriaId": "6AD94161-84BB-42E6-9882-4FC0C42E9FC1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*", "matchCriteriaId": "7AB06DDF-3C2B-416D-B448-E990D8FF67A9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nveth: Ensure eth header is in skb's linear part\n\nAfter feeding a decapsulated packet to a veth device with act_mirred,\nskb_headlen() may be 0. But veth_xmit() calls __dev_forward_skb(),\nwhich expects at least ETH_HLEN byte of linear data (as\n__dev_forward_skb2() calls eth_type_trans(), which pulls ETH_HLEN bytes\nunconditionally).\n\nUse pskb_may_pull() to ensure veth_xmit() respects this constraint.\n\nkernel BUG at include/linux/skbuff.h:2328!\nRIP: 0010:eth_type_trans+0xcf/0x140\nCall Trace:\n <IRQ>\n __dev_forward_skb2+0xe3/0x160\n veth_xmit+0x6e/0x250 [veth]\n dev_hard_start_xmit+0xc7/0x200\n __dev_queue_xmit+0x47f/0x520\n ? skb_ensure_writable+0x85/0xa0\n ? skb_mpls_pop+0x98/0x1c0\n tcf_mirred_act+0x442/0x47e [act_mirred]\n tcf_action_exec+0x86/0x140\n fl_classify+0x1d8/0x1e0 [cls_flower]\n ? dma_pte_clear_level+0x129/0x1a0\n ? dma_pte_clear_level+0x129/0x1a0\n ? prb_fill_curr_block+0x2f/0xc0\n ? skb_copy_bits+0x11a/0x220\n __tcf_classify+0x58/0x110\n tcf_classify_ingress+0x6b/0x140\n __netif_receive_skb_core.constprop.0+0x47d/0xfd0\n ? __iommu_dma_unmap_swiotlb+0x44/0x90\n __netif_receive_skb_one_core+0x3d/0xa0\n netif_receive_skb+0x116/0x170\n be_process_rx+0x22f/0x330 [be2net]\n be_poll+0x13c/0x370 [be2net]\n __napi_poll+0x2a/0x170\n net_rx_action+0x22f/0x2f0\n __do_softirq+0xca/0x2a8\n __irq_exit_rcu+0xc1/0xe0\n common_interrupt+0x83/0xa0"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: veth: Asegurarse de que el encabezado eth est\u00e9 en la parte lineal de skb Despu\u00e9s de alimentar un paquete desencapsulado a un dispositivo veth con act_mirred, skb_headlen() puede ser 0. Pero veth_xmit() llama a __dev_forward_skb(), que espera al menos ETH_HLEN bytes de datos lineales (como __dev_forward_skb2() llama a eth_type_trans(), que extrae ETH_HLEN bytes incondicionalmente). Utilice pskb_may_pull() para asegurarse de que veth_xmit() respete esta restricci\u00f3n. \u00a1ERROR del kernel en include/linux/skbuff.h:2328! RIP: 0010:eth_type_trans+0xcf/0x140 Rastreo de llamadas: __dev_forward_skb2+0xe3/0x160 veth_xmit+0x6e/0x250 [veth] dev_hard_start_xmit+0xc7/0x200 __dev_queue_xmit+0x47f/0x520 ? skb_ensure_writable+0x85/0xa0 ? skb_mpls_pop+0x98/0x1c0 tcf_mirred_act+0x442/0x47e [act_mirred] tcf_action_exec+0x86/0x140 fl_classify+0x1d8/0x1e0 [cls_flower] ? skb_copy_bits+0x11a/0x220 __tcf_classify+0x58/0x110 tcf_classify_ingress+0x6b/0x140 __netif_receive_skb_core.constprop.0+0x47d/0xfd0 ? __iommu_dma_unmap_swiotlb+0x44/0x90 __netif_receive_skb_one_core+0x3d/0xa0 netif_receive_skb+0x116/0x170 be_process_rx+0x22f/0x330 [be2net] be_poll+0x13c/0x370 [be2net] __napi_poll+0x2a/0x170 net_rx_action+0x22f/0x2f0 __do_softirq+0xca/0x2a8 __irq_exit_rcu+0xc1/0xe0 common_interrupt+0x83/0xa0"}], "id": "CVE-2022-49066", "lastModified": "2025-10-14T19:01:51.153", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-26T07:00:43.820", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ef0088e43af1de4e3b365218c4d3179d9a37eec"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2fd90b86dff413fbf8128780c04ea9c6849c16e2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3de2a02b60a4ef0ab76263216f08c7d095fc7c42"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/726e2c5929de841fdcef4e2bf995680688ae1b87"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/93940fc4cb81840dc0fa202de48cccb949a0261d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d417a859221f127e8edf09c14b76ab50f825e171"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d67c900f1947d64ba8a64f693504bcaab8d9000c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2022:7683", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-425.3.1.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2022-11-08T00:00:00Z"}, {"advisory": "RHSA-2022:8267", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-162.6.1.el9_1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2022-11-15T00:00:00Z"}, {"advisory": "RHSA-2022:8267", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-162.6.1.el9_1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2022-11-15T00:00:00Z"}], "bugzilla": {"description": "kernel: veth: Ensure eth header is in skb's linear part", "id": "2348115", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348115"}, "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": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nveth: Ensure eth header is in skb's linear part\nAfter feeding a decapsulated packet to a veth device with act_mirred,\nskb_headlen() may be 0. But veth_xmit() calls __dev_forward_skb(),\nwhich expects at least ETH_HLEN byte of linear data (as\n__dev_forward_skb2() calls eth_type_trans(), which pulls ETH_HLEN bytes\nunconditionally).\nUse pskb_may_pull() to ensure veth_xmit() respects this constraint.\nkernel BUG at include/linux/skbuff.h:2328!\nRIP: 0010:eth_type_trans+0xcf/0x140\nCall Trace:\n<IRQ>\n__dev_forward_skb2+0xe3/0x160\nveth_xmit+0x6e/0x250 [veth]\ndev_hard_start_xmit+0xc7/0x200\n__dev_queue_xmit+0x47f/0x520\n? skb_ensure_writable+0x85/0xa0\n? skb_mpls_pop+0x98/0x1c0\ntcf_mirred_act+0x442/0x47e [act_mirred]\ntcf_action_exec+0x86/0x140\nfl_classify+0x1d8/0x1e0 [cls_flower]\n? dma_pte_clear_level+0x129/0x1a0\n? dma_pte_clear_level+0x129/0x1a0\n? prb_fill_curr_block+0x2f/0xc0\n? skb_copy_bits+0x11a/0x220\n__tcf_classify+0x58/0x110\ntcf_classify_ingress+0x6b/0x140\n__netif_receive_skb_core.constprop.0+0x47d/0xfd0\n? __iommu_dma_unmap_swiotlb+0x44/0x90\n__netif_receive_skb_one_core+0x3d/0xa0\nnetif_receive_skb+0x116/0x170\nbe_process_rx+0x22f/0x330 [be2net]\nbe_poll+0x13c/0x370 [be2net]\n__napi_poll+0x2a/0x170\nnet_rx_action+0x22f/0x2f0\n__do_softirq+0xca/0x2a8\n__irq_exit_rcu+0xc1/0xe0\ncommon_interrupt+0x83/0xa0"], "name": "CVE-2022-49066", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "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-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49066\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49066\nhttps://lore.kernel.org/linux-cve-announce/2025022654-CVE-2022-49066-bc68@gregkh/T"], "threat_severity": "Moderate"}

{}