469 lines
21 KiB
JSON
469 lines
21 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-2026-23154",
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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": "2026-01-13T15:37:45.977Z",
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"datePublished": "2026-02-14T16:01:21.758Z",
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"dateUpdated": "2026-11-10T12:41:53.766Z"
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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": "2026-05-11T22:01:15.543Z"
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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\nnet: fix segmentation of forwarding fraglist GRO\n\nThis patch enhances GSO segment handling by properly checking\nthe SKB_GSO_DODGY flag for frag_list GSO packets, addressing\nlow throughput issues observed when a station accesses IPv4\nservers via hotspots with an IPv6-only upstream interface.\n\nSpecifically, it fixes a bug in GSO segmentation when forwarding\nGRO packets containing a frag_list. The function skb_segment_list\ncannot correctly process GRO skbs that have been converted by XLAT,\nsince XLAT only translates the header of the head skb. Consequently,\nskbs in the frag_list may remain untranslated, resulting in protocol\ninconsistencies and reduced throughput.\n\nTo address this, the patch explicitly sets the SKB_GSO_DODGY flag\nfor GSO packets in XLAT's IPv4/IPv6 protocol translation helpers\n(bpf_skb_proto_4_to_6 and bpf_skb_proto_6_to_4). This marks GSO\npackets as potentially modified after protocol translation. As a\nresult, GSO segmentation will avoid using skb_segment_list and\ninstead falls back to skb_segment for packets with the SKB_GSO_DODGY\nflag. This ensures that only safe and fully translated frag_list\npackets are processed by skb_segment_list, resolving protocol\ninconsistencies and improving throughput when forwarding GRO packets\nconverted by XLAT."
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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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"net/core/filter.c",
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"net/ipv4/tcp_offload.c",
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"net/ipv4/udp_offload.c",
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"net/ipv6/tcpv6_offload.c"
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],
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{
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"programFiles": [
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"net/core/filter.c",
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"net/ipv4/tcp_offload.c",
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"net/ipv4/udp_offload.c",
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"net/ipv6/tcpv6_offload.c"
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],
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"versions": [
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{
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"version": "5.6",
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"status": "affected"
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},
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"version": "0",
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"status": "unaffected",
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},
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"version": "6.1.167",
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"lessThanOrEqual": "6.1.*",
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{
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},
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{
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"version": "6.12.69",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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},
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{
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"version": "6.18.9",
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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": "6.19",
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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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"operator": "OR",
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"vulnerable": true,
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"versionStartIncluding": "5.6",
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"references": [
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"url": "https://git.kernel.org/stable/c/2cbef9ea5a0ac51863ede35c45f26931a85d3888"
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{
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}
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],
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"title": "net: fix segmentation of forwarding fraglist GRO",
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-23154",
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"role": "CISA Coordinator",
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"options": [
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{
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},
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{
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"description": "CWE-20 Improper Input Validation"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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{
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"vendor": "Siemens",
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