227 lines
11 KiB
JSON
227 lines
11 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-2026-98626",
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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": "2026-09-25T10:25:14.361Z",
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"datePublished": "2026-10-18T15:19:47.832Z",
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"dateUpdated": "2026-10-19T09:22:54.307Z"
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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": "2026-10-19T09:22:54.307Z"
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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: Restrict CO-RE poisoning to relocatable instructions\n\nCO-RE relocation records can name any instruction offset. When a\nrelocation cannot be resolved, bpf_core_patch_insn() currently poisons its\ntarget before checking whether that instruction is a valid relocation\ntarget. Malformed metadata can therefore replace jumps, calls, exits,\nregister-source arithmetic, or non-immediate loads instead of failing at\nthe relocation step.\n\nHandle poisoning only after the instruction has passed the same class and\noperand-form checks used for a resolved relocation. Route invalid forms\nthrough the existing diagnostic and return a hard error. Keep poisoning\nsupported instructions, including both halves of a plain ldimm64, so an\nunresolved relocation in dead code remains valid.\n\nExtend bpf_core_poison_insn() to poison both halves of ldimm64, and return\nits status directly from each validated instruction case. This avoids\nrouting the success path through a common label and leaves the helper free\nto report errors.\n\nThe shared relocation code applies this restriction to both libbpf and\nin-kernel CO-RE."
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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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"tools/lib/bpf/relo_core.c"
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],
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"versions": [
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{
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"version": "d7a252708dbc950ca2064310217e8b9f85846e2f",
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"lessThan": "a8c47e62d9aea2d47a09e06c1682c59c21b92449",
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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": "d7a252708dbc950ca2064310217e8b9f85846e2f",
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"lessThan": "d3219c229d16900cef936adad28633c98946e432",
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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": "d7a252708dbc950ca2064310217e8b9f85846e2f",
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"lessThan": "a0b79cdfcf34b53c85bac2d3cf022fc1342eeca0",
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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": "d7a252708dbc950ca2064310217e8b9f85846e2f",
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"lessThan": "f2a24101e89dd0804e717da7c1bd6af513698aa2",
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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": "d7a252708dbc950ca2064310217e8b9f85846e2f",
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"lessThan": "2d7d04357c41aa49a5ac658fcc207439f2ad6456",
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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": "d7a252708dbc950ca2064310217e8b9f85846e2f",
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"lessThan": "8e4cbcca1e0a2fc5e6c8edb68e0cf5f2587f9319",
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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": "d7a252708dbc950ca2064310217e8b9f85846e2f",
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"lessThan": "394ae398337c5f87e567f6cd63b937fc2b2f6ddc",
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"status": "affected",
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"versionType": "git"
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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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"tools/lib/bpf/relo_core.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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{
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"version": "0",
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"lessThan": "5.6",
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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": "5.15.222",
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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": "6.1.189",
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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": "5.6",
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"versionEndExcluding": "5.15.222"
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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": "5.6",
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"versionEndExcluding": "6.1.189"
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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": "5.6",
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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": "5.6",
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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": "5.6",
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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": "5.6",
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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": "5.6",
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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/a8c47e62d9aea2d47a09e06c1682c59c21b92449"
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},
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{
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"url": "https://git.kernel.org/stable/c/d3219c229d16900cef936adad28633c98946e432"
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},
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{
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"url": "https://git.kernel.org/stable/c/a0b79cdfcf34b53c85bac2d3cf022fc1342eeca0"
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},
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{
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"url": "https://git.kernel.org/stable/c/f2a24101e89dd0804e717da7c1bd6af513698aa2"
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},
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{
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"url": "https://git.kernel.org/stable/c/2d7d04357c41aa49a5ac658fcc207439f2ad6456"
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},
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{
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"url": "https://git.kernel.org/stable/c/8e4cbcca1e0a2fc5e6c8edb68e0cf5f2587f9319"
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},
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{
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"url": "https://git.kernel.org/stable/c/394ae398337c5f87e567f6cd63b937fc2b2f6ddc"
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}
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],
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"title": "bpf: Restrict CO-RE poisoning to relocatable instructions",
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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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} |