CVE-2024-43835

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Same for virtnet_poll_cleantx(), which always assumed that\nit was in a NAPI context."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/virtio_net.c"], "versions": [{"version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "lessThan": "d3af435e8ace119e58d8e21d3d2d6a4e7c4a4baa", "status": "affected", "versionType": "git"}, {"version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "lessThan": "842a97b5e44f0c8a9fc356fe976e0e13ddcf7783", "status": "affected", "versionType": "git"}, {"version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "lessThan": "cc7340f18e45886121c131227985d64ef666012f", "status": "affected", "versionType": "git"}, {"version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "lessThan": "6b5325f2457521bbece29499970c0117a648c620", "status": "affected", "versionType": "git"}, {"version": "df133f3f96257ee29696c0ed8bd198ec801dc810", 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"5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.109", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.50", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.3", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "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": "5.0", "versionEndExcluding": "5.4.284"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.10.226"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": 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"https://git.kernel.org/stable/c/f5e9a22d19bb98a7e86034db85eb295e94187caa"}, {"url": "https://git.kernel.org/stable/c/468a729b78895893d0e580ceea49bed8ada2a2bd"}, {"url": "https://git.kernel.org/stable/c/f8321fa75102246d7415a6af441872f6637c93ab"}], "title": "virtio_net: Fix napi_skb_cache_put warning", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-43835", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:08:14.954725Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:23.316Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"url": 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Same for virtnet_poll_cleantx(), which always assumed that\nit was in a NAPI context."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.284", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.226", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.167", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.109", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.50", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.3", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11", "versionStartIncluding": "5.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:30:44.066Z"}}}, "cveMetadata": {"cveId": "CVE-2024-43835", "state": "PUBLISHED", "dateUpdated": "2026-05-11T20:30:44.066Z", "dateReserved": "2024-08-17T09:11:59.274Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-08-17T09:21:52.425Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/virtio_net.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d3af435e8ace119e58d8e21d3d2d6a4e7c4a4baa", "status": "affected", "version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "versionType": "git"}, {"lessThan": "842a97b5e44f0c8a9fc356fe976e0e13ddcf7783", "status": "affected", "version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "versionType": "git"}, {"lessThan": "cc7340f18e45886121c131227985d64ef666012f", "status": "affected", "version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "versionType": "git"}, {"lessThan": "6b5325f2457521bbece29499970c0117a648c620", "status": "affected", "version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "versionType": "git"}, {"lessThan": "f5e9a22d19bb98a7e86034db85eb295e94187caa", "status": "affected", "version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "versionType": "git"}, {"lessThan": "468a729b78895893d0e580ceea49bed8ada2a2bd", "status": "affected", "version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "versionType": "git"}, {"lessThan": "f8321fa75102246d7415a6af441872f6637c93ab", "status": "affected", "version": "df133f3f96257ee29696c0ed8bd198ec801dc810", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/virtio_net.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"lessThan": "5.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.284", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.226", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.167", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.109", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.50", "versionType": "semver"}, {"lessThanOrEqual": "6.10.*", "status": "unaffected", "version": "6.10.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "24574782-30C5-4044-BD18-A21100B2C80D", "versionEndExcluding": "6.10.3", "versionStartIncluding": "5.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_net: Fix napi_skb_cache_put warning\n\nAfter the commit bdacf3e34945 (\"net: Use nested-BH locking for\nnapi_alloc_cache.\") was merged, the following warning began to appear:\n\n\t WARNING: CPU: 5 PID: 1 at net/core/skbuff.c:1451 napi_skb_cache_put+0x82/0x4b0\n\n\t __warn+0x12f/0x340\n\t napi_skb_cache_put+0x82/0x4b0\n\t napi_skb_cache_put+0x82/0x4b0\n\t report_bug+0x165/0x370\n\t handle_bug+0x3d/0x80\n\t exc_invalid_op+0x1a/0x50\n\t asm_exc_invalid_op+0x1a/0x20\n\t __free_old_xmit+0x1c8/0x510\n\t napi_skb_cache_put+0x82/0x4b0\n\t __free_old_xmit+0x1c8/0x510\n\t __free_old_xmit+0x1c8/0x510\n\t __pfx___free_old_xmit+0x10/0x10\n\nThe issue arises because virtio is assuming it's running in NAPI context\neven when it's not, such as in the netpoll case.\n\nTo resolve this, modify virtnet_poll_tx() to only set NAPI when budget\nis available. Same for virtnet_poll_cleantx(), which always assumed that\nit was in a NAPI context."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: virtio_net: corrige la advertencia de napi_skb_cache_put Despu\u00e9s de que se fusion\u00f3 el commit bdacf3e34945 (\"net: Use bloqueo de BH anidado para napi_alloc_cache.\"), comenz\u00f3 a aparecer la siguiente advertencia: ADVERTENCIA: CPU: 5 PID: 1 en net/core/skbuff.c:1451 napi_skb_cache_put+0x82/0x4b0 __warn+0x12f/0x340 napi_skb_cache_put+0x82/0x4b0 napi_skb_cache_put+0x82/0x4b0 report_bug+0x165/0x370 x80 exc_invalid_op+0x1a/0x50 asm_exc_invalid_op+ 0x1a/0x20 __free_old_xmit+0x1c8/0x510 napi_skb_cache_put+0x82/0x4b0 __free_old_xmit+0x1c8/0x510 __free_old_xmit+0x1c8/0x510 __pfx___free_old_xmit+0x10/0x10 El problema surge porque virtio asumiendo que se est\u00e1 ejecutando en el contexto NAPI incluso cuando no lo es, como en netpoll caso. Para resolver esto, modifique virtnet_poll_tx() para configurar NAPI solo cuando haya presupuesto disponible. Lo mismo ocurre con virtnet_poll_cleantx(), que siempre asumi\u00f3 que estaba en un contexto NAPI."}], "id": "CVE-2024-43835", "lastModified": "2026-06-17T07:51:48.363", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-43835", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T16:08:14.954725Z", "version": "2.0.3"}}]}, "published": "2024-08-17T10:15:09.183", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/468a729b78895893d0e580ceea49bed8ada2a2bd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6b5325f2457521bbece29499970c0117a648c620"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/842a97b5e44f0c8a9fc356fe976e0e13ddcf7783"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cc7340f18e45886121c131227985d64ef666012f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d3af435e8ace119e58d8e21d3d2d6a4e7c4a4baa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f5e9a22d19bb98a7e86034db85eb295e94187caa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f8321fa75102246d7415a6af441872f6637c93ab"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: virtio_net: Fix napi_skb_cache_put warning", "id": "2305493", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2305493"}, "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"}, "cwe": "CWE-667", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nvirtio_net: Fix napi_skb_cache_put warning\nAfter the commit bdacf3e34945 (\"net: Use nested-BH locking for\nnapi_alloc_cache.\") was merged, the following warning began to appear:\nWARNING: CPU: 5 PID: 1 at net/core/skbuff.c:1451 napi_skb_cache_put+0x82/0x4b0\n__warn+0x12f/0x340\nnapi_skb_cache_put+0x82/0x4b0\nnapi_skb_cache_put+0x82/0x4b0\nreport_bug+0x165/0x370\nhandle_bug+0x3d/0x80\nexc_invalid_op+0x1a/0x50\nasm_exc_invalid_op+0x1a/0x20\n__free_old_xmit+0x1c8/0x510\nnapi_skb_cache_put+0x82/0x4b0\n__free_old_xmit+0x1c8/0x510\n__free_old_xmit+0x1c8/0x510\n__pfx___free_old_xmit+0x10/0x10\nThe issue arises because virtio is assuming it's running in NAPI context\neven when it's not, such as in the netpoll case.\nTo resolve this, modify virtnet_poll_tx() to only set NAPI when budget\nis available. Same for virtnet_poll_cleantx(), which always assumed that\nit was in a NAPI context."], "name": "CVE-2024-43835", "package_state": [{"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": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "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": "2024-08-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-43835\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-43835\nhttps://lore.kernel.org/linux-cve-announce/2024081728-CVE-2024-43835-5f11@gregkh/T"], "threat_severity": "Moderate"}

{}