280 lines
13 KiB
JSON
280 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-98568",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-09-25T10:25:14.357Z",
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"datePublished": "2026-10-18T15:18:34.562Z",
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"dateUpdated": "2026-10-30T12:38:26.027Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-30T12:38:26.027Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: use one headroom snapshot for neighbour replies\n\nvxlan_na_create() samples LL_RESERVED_SPACE() to size the reply skb and then\nsamples it again to reserve headroom. A concurrent vxlan_changelink() can\nupdate needed_headroom between the two reads, creating a TOCTOU race. The\nsecond value can exceed the allocation and make the Ethernet header write out\nof bounds.\n\nThe race is reproducible on the unpatched kernel. It occurred when\nvxlan_na_create() generated a neighbour reply while vxlan_changelink() changed\nthe link headroom. KASAN caught a four-byte write two bytes beyond a 704-byte\nskbuff_small_head allocation.\n\nSnapshot the headroom once and use that value for both allocation and\nreservation."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/vxlan/vxlan_core.c"
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],
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"versions": [
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{
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"version": "4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa",
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"lessThan": "e3e24f4c434c56952412f875b834aa9daaa4fb15",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa",
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"lessThan": "9ed5a548b42d46e6968a46b67ca8a8e49b12a5a1",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa",
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"lessThan": "fcaf456092dc86fd5b0b523ac27ec0d114066931",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa",
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"lessThan": "45a67662bf8ce3aa5643accf98d328dfbb47eaf6",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa",
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"lessThan": "315d42ca39f69846662961c25dcf2bb07c350d14",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa",
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"lessThan": "a3c5eb6e382dd426a5e7eb08608897ed57167ff7",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa",
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"lessThan": "ff022fd9d0f0282c575e11778b96bd1b637503eb",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa",
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"lessThan": "481506a756dcd828ef42391cb08f38d8d96d38fc",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "d8be18c52dbc94989f6d74637b731af39cd3d902",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3927dace523706cc00f808520eaf2125dd7c07b5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3.12.18",
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"lessThan": "3.13",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "3.13.10",
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"lessThan": "3.14",
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"status": "affected",
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"versionType": "semver"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/vxlan/vxlan_core.c"
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],
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"versions": [
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{
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"version": "3.14",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.14",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.273",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.224",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.191",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.158",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.112",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.55",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.9",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.14",
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"versionEndExcluding": "5.10.273"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.14",
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"versionEndExcluding": "5.15.224"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.14",
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"versionEndExcluding": "6.1.191"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.14",
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"versionEndExcluding": "6.6.158"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.14",
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"versionEndExcluding": "6.12.112"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.14",
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"versionEndExcluding": "6.18.55"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.14",
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"versionEndExcluding": "7.2.9"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.14",
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"versionEndExcluding": "7.3"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.12.18"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.13.10"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/e3e24f4c434c56952412f875b834aa9daaa4fb15"
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},
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{
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"url": "https://git.kernel.org/stable/c/9ed5a548b42d46e6968a46b67ca8a8e49b12a5a1"
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},
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{
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"url": "https://git.kernel.org/stable/c/fcaf456092dc86fd5b0b523ac27ec0d114066931"
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},
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{
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"url": "https://git.kernel.org/stable/c/45a67662bf8ce3aa5643accf98d328dfbb47eaf6"
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},
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{
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"url": "https://git.kernel.org/stable/c/315d42ca39f69846662961c25dcf2bb07c350d14"
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},
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{
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"url": "https://git.kernel.org/stable/c/a3c5eb6e382dd426a5e7eb08608897ed57167ff7"
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},
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{
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"url": "https://git.kernel.org/stable/c/ff022fd9d0f0282c575e11778b96bd1b637503eb"
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},
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{
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"url": "https://git.kernel.org/stable/c/481506a756dcd828ef42391cb08f38d8d96d38fc"
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}
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],
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"title": "vxlan: use one headroom snapshot for neighbour replies",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |