{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-68302", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-16T14:48:05.293Z", "datePublished": "2025-12-16T15:06:20.420Z", "dateUpdated": "2026-08-05T12:10:43.401Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:10:43.401Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sxgbe: fix potential NULL dereference in sxgbe_rx()\n\nCurrently, when skb is null, the driver prints an error and then\ndereferences skb on the next line.\n\nTo fix this, let's add a 'break' after the error message to switch\nto sxgbe_rx_refill(), which is similar to the approach taken by the\nother drivers in this particular case, e.g. calxeda with xgmac_rx().\n\nFound during a code review." } ], "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 - Unauthenticated network traffic is processed by the SXGBE hardware receive ring before any protocol authentication, and routed packets can reach the affected NIC without requiring local or adjacent access.\nAC:L - A sustained packet flood can drive GFP_ATOMIC RX-buffer allocation failures and advance the receive cursor to the resulting dirty descriptor; the attacker controls and can repeatedly generate the required traffic.\nPR:N - The vulnerable receive path runs before authentication or privilege checks, so the remote sender requires no account, capability, or other privileges on the target.\nUI:N - Exploitation requires only delivery of network traffic to an active SXGBE interface and does not depend on any user action.\nS:U - The NULL dereference affects the same host kernel and does not cross a virtualization, IOMMU, or other distinct security boundary.\nC:N - The defect dereferences a NULL skb pointer and provides no attacker-controlled out-of-bounds read, use-after-free, or information-disclosure primitive.\nI:N - The defect is a pure NULL-pointer dereference with no attacker-controlled memory corruption, arbitrary write, or data-modification primitive.\nA:H - The NULL dereference occurs in the kernel NAPI receive path and can cause an oops or kernel panic, producing complete loss of availability." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c" ], "versions": [ { "version": "1edb9ca69e8a7988900fc0283e10550b5592164d", "lessThan": "ac171c3c755499c9f87fe30b920602255f8b5648", "status": "affected", "versionType": "git" }, { "version": "1edb9ca69e8a7988900fc0283e10550b5592164d", "lessThan": "18ef3ad1bb57dcf1a9ee61736039aedccf670b21", "status": "affected", "versionType": "git" }, { "version": "1edb9ca69e8a7988900fc0283e10550b5592164d", "lessThan": "46e5332126596a2ca791140feab18ce1fc1a3c86", "status": "affected", "versionType": "git" }, { "version": "1edb9ca69e8a7988900fc0283e10550b5592164d", "lessThan": "7fd789d6ea4915034eb6bcb72f6883c8151083e5", "status": "affected", "versionType": "git" }, { "version": "1edb9ca69e8a7988900fc0283e10550b5592164d", "lessThan": "45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc", "status": "affected", "versionType": "git" }, { "version": "1edb9ca69e8a7988900fc0283e10550b5592164d", "lessThan": "88f46c0be77bfe45830ac33102c75be7c34ac3f3", "status": "affected", "versionType": "git" }, { "version": "1edb9ca69e8a7988900fc0283e10550b5592164d", "lessThan": "f5bce28f6b9125502abec4a67d68eabcd24b3b17", "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/samsung/sxgbe/sxgbe_main.c" ], "versions": [ { "version": "3.15", "status": "affected" }, { "version": "0", "lessThan": "3.15", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.247", "lessThanOrEqual": "5.10.*", "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": "6.6.119", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.61", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17.11", "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": "3.15", "versionEndExcluding": "5.10.247" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "5.15.197" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.1.159" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.6.119" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.12.61" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.17.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.18" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/ac171c3c755499c9f87fe30b920602255f8b5648" }, { "url": "https://git.kernel.org/stable/c/18ef3ad1bb57dcf1a9ee61736039aedccf670b21" }, { "url": "https://git.kernel.org/stable/c/46e5332126596a2ca791140feab18ce1fc1a3c86" }, { "url": "https://git.kernel.org/stable/c/7fd789d6ea4915034eb6bcb72f6883c8151083e5" }, { "url": "https://git.kernel.org/stable/c/45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc" }, { "url": "https://git.kernel.org/stable/c/88f46c0be77bfe45830ac33102c75be7c34ac3f3" }, { "url": "https://git.kernel.org/stable/c/f5bce28f6b9125502abec4a67d68eabcd24b3b17" } ], "title": "net: sxgbe: fix potential NULL dereference in sxgbe_rx()", "x_generator": { "engine": "bippy-1.2.0" } } } }