116 lines
5.2 KiB
JSON
116 lines
5.2 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-2026-98589",
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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": "2026-09-25T10:25:14.358Z",
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"datePublished": "2026-10-18T15:19:01.769Z",
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"dateUpdated": "2026-10-19T09:22:14.803Z"
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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": "2026-10-19T09:22:14.803Z"
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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\nbpf: Reject pkt arguments in mutating subprogs\n\nThe verifier tracks changes in how PTR_TO_PACKET registers'\nbounds are modified across subprog boundaries. PTR_TO_PACKET\nregisters are actually passed as PTR_TO_MEM, which is assumed\nvalid for the entire call. This is not the case with packet memory,\nwhere a pskb_* call may invalidate its memory region.\n\nReject BPF code that passes PTR_TO_PACKET pointers to subprogs that\nmay mutate a packet. We cannot pass the pointer as a true PTR_TO_PACKET\nbecause we would also need to somehow pass the PTR_TO_PACKET_META\nor PTR_TO_PACKET_END to the subprog. Since we cannot avoid representing\nthe pointer in the subprog as PTR_TO_MEM, only permit it if the\nsubprog is guaranteed not to mutate the packet."
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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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"kernel/bpf/verifier.c"
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],
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"versions": [
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{
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"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "0b6b2bb9b90ad1e2d94d18f626258a1dbbdee0ea",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "a6c1edfbe240e4377038a0e1d233ad81fde9a21b",
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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": "0",
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"lessThan": "7.2.9",
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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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"kernel/bpf/verifier.c"
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],
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"versions": [
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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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"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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"versionEndExcluding": "7.3"
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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/0b6b2bb9b90ad1e2d94d18f626258a1dbbdee0ea"
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},
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{
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"url": "https://git.kernel.org/stable/c/a6c1edfbe240e4377038a0e1d233ad81fde9a21b"
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}
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],
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"title": "bpf: Reject pkt arguments in mutating subprogs",
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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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} |