CVE-2025-37755

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There was a WARN_ON(!page)\nbut it would still proceed to use the NULL pointer and then crash.\n\nThis is similar to commit 001ba0902046\n(\"net: fec: handle page_pool_dev_alloc_pages error\").\n\nThis is found by our static analysis tool KNighter."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - The vulnerable RX-buffer refill runs in the NIC's NAPI poll path (`wx_poll` \u2192 `wx_clean_rx_irq` \u2192 `wx_alloc_rx_buffers`), driven entirely by packets received from the wire on internet-facing ngbe/txgbe interfaces. A remote attacker reaches the code by sending traffic, with no local access required.\nAC:L - The trigger is a page-pool allocation failure, which a remote attacker can reliably induce by flooding the interface to force continuous ring refill and drive memory demand; the analogous fec bug was reproduced this way via ordinary network activity under memory pressure. No unpredictable memory layout or victim-state precondition is involved.\nPR:N - The receive path processes packets before any authentication or authorization; the attacker needs no account, credentials, or capabilities on the target. Any host able to send frames to the NIC can drive the path.\nUI:N - Buffer refill happens automatically in softirq context whenever packets are received. No administrator or user action is needed on the victim system.\nS:U - The NULL dereference occurs in kernel context and its impact is confined to the same kernel security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:N - The fault is a read from a fixed NULL-page offset that immediately oopses; no attacker-controlled memory is read and no kernel data is returned to the attacker. There is no information-disclosure primitive.\nI:N - The bug is a NULL pointer dereference, not an out-of-bounds or use-after-free write; execution aborts at the faulting read before any bogus descriptor address can be programmed. No memory modification or control-flow hijack primitive is available.\nA:H - The dereference oopses in softirq/NAPI context, panicking the machine under panic_on_oops and otherwise killing the RX path and leaving the network stack unusable. This is a complete availability loss triggerable remotely without credentials."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/wangxun/libwx/wx_lib.c"], "versions": [{"version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "lessThan": "c17ef974bfcf1a50818168b47c4606b425a957c4", "status": "affected", "versionType": "git"}, {"version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "lessThan": "ad81d666e114ebf989fc9994d4c93d451dc60056", "status": "affected", "versionType": "git"}, {"version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "lessThan": "1dd13c60348f515acd8c6f25a561b9c4e3b04fea", "status": "affected", "versionType": "git"}, {"version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "lessThan": "90bec7cef8805f9a23145e070dff28a02bb584eb", "status": "affected", "versionType": "git"}, {"version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "lessThan": "7f1ff1b38a7c8b872382b796023419d87d78c47e", "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/ethernet/wangxun/libwx/wx_lib.c"], "versions": [{"version": "6.3", "status": "affected"}, {"version": "0", "lessThan": "6.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.88", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.24", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.12", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.3", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15", "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": "6.3", "versionEndExcluding": "6.6.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.12.24"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.13.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.14.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c17ef974bfcf1a50818168b47c4606b425a957c4"}, {"url": "https://git.kernel.org/stable/c/ad81d666e114ebf989fc9994d4c93d451dc60056"}, {"url": "https://git.kernel.org/stable/c/1dd13c60348f515acd8c6f25a561b9c4e3b04fea"}, {"url": "https://git.kernel.org/stable/c/90bec7cef8805f9a23145e070dff28a02bb584eb"}, {"url": "https://git.kernel.org/stable/c/7f1ff1b38a7c8b872382b796023419d87d78c47e"}], "title": "net: libwx: handle page_pool_dev_alloc_pages error", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/wangxun/libwx/wx_lib.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c17ef974bfcf1a50818168b47c4606b425a957c4", "status": "affected", "version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "versionType": "git"}, {"lessThan": "ad81d666e114ebf989fc9994d4c93d451dc60056", "status": "affected", "version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "versionType": "git"}, {"lessThan": "1dd13c60348f515acd8c6f25a561b9c4e3b04fea", "status": "affected", "version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "versionType": "git"}, {"lessThan": "90bec7cef8805f9a23145e070dff28a02bb584eb", "status": "affected", "version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "versionType": "git"}, {"lessThan": "7f1ff1b38a7c8b872382b796023419d87d78c47e", "status": "affected", "version": "3c47e8ae113a68da47987750d9896e325d0aeedd", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/wangxun/libwx/wx_lib.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.3"}, {"lessThan": "6.3", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.88", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.24", "versionType": "semver"}, {"lessThanOrEqual": "6.13.*", "status": "unaffected", "version": "6.13.12", "versionType": "semver"}, {"lessThanOrEqual": "6.14.*", "status": "unaffected", "version": "6.14.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E490AC3E-4FCB-404E-B82F-0DE1390D06A2", "versionEndExcluding": "6.6.88", "versionStartIncluding": "6.3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1D35A8A8-F3EC-45E6-AD37-1F154B27529D", "versionEndExcluding": "6.12.24", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4A475784-BF3B-4514-81EE-49C8522FB24A", "versionEndExcluding": "6.13.12", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "483E2E15-2135-4EC6-AB64-16282C5EF704", "versionEndExcluding": "6.14.3", "versionStartIncluding": "6.14", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*", "matchCriteriaId": "8D465631-2980-487A-8E65-40AE2B9F8ED1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: libwx: handle page_pool_dev_alloc_pages error\n\npage_pool_dev_alloc_pages could return NULL. There was a WARN_ON(!page)\nbut it would still proceed to use the NULL pointer and then crash.\n\nThis is similar to commit 001ba0902046\n(\"net: fec: handle page_pool_dev_alloc_pages error\").\n\nThis is found by our static analysis tool KNighter."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: libwx: error en el controlador page_pool_dev_alloc_pages. page_pool_dev_alloc_pages podr\u00eda devolver NULL. Se ejecut\u00f3 un WARN_ON(!page), pero segu\u00eda usando el puntero NULL y se bloqueaba. Esto es similar a la confirmaci\u00f3n 001ba0902046 (\"net: fec: error en el controlador page_pool_dev_alloc_pages\"). Esta vulnerabilidad fue detectada por nuestra herramienta de an\u00e1lisis est\u00e1tico Knighter."}], "id": "CVE-2025-37755", "lastModified": "2026-08-04T11:22:42.957", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"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": "2025-05-01T13:15:54.267", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1dd13c60348f515acd8c6f25a561b9c4e3b04fea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7f1ff1b38a7c8b872382b796023419d87d78c47e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/90bec7cef8805f9a23145e070dff28a02bb584eb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ad81d666e114ebf989fc9994d4c93d451dc60056"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c17ef974bfcf1a50818168b47c4606b425a957c4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: libwx: handle page_pool_dev_alloc_pages error", "id": "2363276", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363276"}, "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:\nnet: libwx: handle page_pool_dev_alloc_pages error\npage_pool_dev_alloc_pages could return NULL. There was a WARN_ON(!page)\nbut it would still proceed to use the NULL pointer and then crash.\nThis is similar to commit 001ba0902046\n(\"net: fec: handle page_pool_dev_alloc_pages error\").\nThis is found by our static analysis tool KNighter."], "name": "CVE-2025-37755", "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": "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-37755\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-37755\nhttps://lore.kernel.org/linux-cve-announce/2025050138-CVE-2025-37755-00b5@gregkh/T"], "threat_severity": "Moderate"}

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