{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-68321", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-16T14:48:05.295Z", "datePublished": "2025-12-16T15:44:19.066Z", "dateUpdated": "2026-08-05T12:10:53.192Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:10:53.192Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npage_pool: always add GFP_NOWARN for ATOMIC allocations\n\nDriver authors often forget to add GFP_NOWARN for page allocation\nfrom the datapath. This is annoying to users as OOMs are a fact\nof life, and we pretty much expect network Rx to hit page allocation\nfailures during OOM. Make page pool add GFP_NOWARN for ATOMIC allocations\nby default." } ], "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 - Remote Ethernet traffic can reach RX NAPI buffer-refill paths in page-pool drivers such as bnxt and mlx4 before firewall or protocol authentication.\nAC:L - A sustained packet flood can drain recycled buffers and force atomic slow-path allocations under memory pressure; no race or attacker-independent timing condition is required.\nPR:N - The receive path processes packets before authentication and requires no capability, local account, or namespace access.\nUI:N - No victim action is required once the affected network interface is active.\nS:U - The vulnerability and its availability effects remain within the host kernel and its logging resources.\nC:N - The bug creates no out-of-bounds access, use-after-free, or attacker-accessible memory disclosure; diagnostics are not returned to the remote peer.\nI:N - Adding __GFP_NOWARN changes only diagnostic emission and does not alter memory contents, allocation results, or control flow.\nA:H - Sustained failures repeatedly invoke expensive stack and memory-state dumps, which can monopolize slow console or logging paths and exhaust log storage on constrained systems. Although globally rate-limited, the resulting persistent disruption can become severe in a reasonable network-appliance deployment." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/core/page_pool.c" ], "versions": [ { "version": "ff7d6b27f894f1469dc51ccb828b7363ccd9799f", "lessThan": "0ec2cd5c58793d0c622797cd5fbe26634b357210", "status": "affected", "versionType": "git" }, { "version": "ff7d6b27f894f1469dc51ccb828b7363ccd9799f", "lessThan": "9835a0fd59a1df5ec0740fdab6d50db68e0f10de", "status": "affected", "versionType": "git" }, { "version": "ff7d6b27f894f1469dc51ccb828b7363ccd9799f", "lessThan": "7613c06ffa89c1e2266fb532e23ef7dfdf269d73", "status": "affected", "versionType": "git" }, { "version": "ff7d6b27f894f1469dc51ccb828b7363ccd9799f", "lessThan": "3671a0775952026228ae44e096eb144bca75f8dc", "status": "affected", "versionType": "git" }, { "version": "ff7d6b27f894f1469dc51ccb828b7363ccd9799f", "lessThan": "ab48dc0e23eb714b3f233f8e8f6deed7df2051f5", "status": "affected", "versionType": "git" }, { "version": "ff7d6b27f894f1469dc51ccb828b7363ccd9799f", "lessThan": "f3b52167a0cb23b27414452fbc1278da2ee884fc", "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/core/page_pool.c" ], "versions": [ { "version": "4.18", "status": "affected" }, { "version": "0", "lessThan": "4.18", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.197", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.159", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.117", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.58", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17.8", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18", "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": "4.18", "versionEndExcluding": "5.15.197" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.1.159" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.6.117" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.12.58" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.17.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.18" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/0ec2cd5c58793d0c622797cd5fbe26634b357210" }, { "url": "https://git.kernel.org/stable/c/9835a0fd59a1df5ec0740fdab6d50db68e0f10de" }, { "url": "https://git.kernel.org/stable/c/7613c06ffa89c1e2266fb532e23ef7dfdf269d73" }, { "url": "https://git.kernel.org/stable/c/3671a0775952026228ae44e096eb144bca75f8dc" }, { "url": "https://git.kernel.org/stable/c/ab48dc0e23eb714b3f233f8e8f6deed7df2051f5" }, { "url": "https://git.kernel.org/stable/c/f3b52167a0cb23b27414452fbc1278da2ee884fc" } ], "title": "page_pool: always add GFP_NOWARN for ATOMIC allocations", "x_generator": { "engine": "bippy-1.2.0" } } } }