{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-37755", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.938Z", "datePublished": "2025-05-01T12:55:59.499Z", "dateUpdated": "2026-08-05T11:57:18.092Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:57:18.092Z" }, "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." } ], "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` → `wx_clean_rx_irq` → `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" } } } }