310 lines
15 KiB
JSON
310 lines
15 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-2026-46196",
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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": "2026-05-13T15:03:33.104Z",
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"datePublished": "2026-05-28T09:36:49.293Z",
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"dateUpdated": "2026-11-06T16:13:44.487Z"
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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": "2026-06-19T11:59:59.175Z"
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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\ntracepoint: balance regfunc() on func_add() failure in tracepoint_add_func()\n\nWhen a tracepoint goes through the 0 -> 1 transition, tracepoint_add_func()\ninvokes the subsystem's ext->regfunc() before attempting to install the\nnew probe via func_add(). If func_add() then fails (for example, when\nallocate_probes() cannot allocate a new probe array under memory pressure\nand returns -ENOMEM), the function returns the error without calling the\nmatching ext->unregfunc(), leaving the side effects of regfunc() behind\nwith no installed probe to justify them.\n\nFor syscall tracepoints this is particularly unpleasant: syscall_regfunc()\nbumps sys_tracepoint_refcount and sets SYSCALL_TRACEPOINT on every task.\nAfter a leaked failure, the refcount is stuck at a non-zero value with no\nconsumer, and every task continues paying the syscall trace entry/exit\noverhead until reboot. Other subsystems providing regfunc()/unregfunc()\npairs exhibit similarly scoped persistent state.\n\nMirror the existing 1 -> 0 cleanup and call ext->unregfunc() in the\nfunc_add() error path, gated on the same condition used there so the\nunwind is symmetric with the registration."
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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/tracepoint.c"
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],
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"versions": [
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{
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"version": "8cf868affdc459beee1a941df0cfaba1673740e3",
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"lessThan": "5787052e5f69beb649f3d6a80a8aa37d9e683e4e",
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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": "8cf868affdc459beee1a941df0cfaba1673740e3",
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"lessThan": "4f1756d043e56ea2e9a6c858fb290a0cf6fc2251",
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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": "8cf868affdc459beee1a941df0cfaba1673740e3",
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"lessThan": "36ff362235307af95152d510b53c2d9b8773a342",
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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": "8cf868affdc459beee1a941df0cfaba1673740e3",
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"lessThan": "247ed8a969f981bfba3112fd4bb441eaa6cef59c",
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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": "8cf868affdc459beee1a941df0cfaba1673740e3",
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"lessThan": "7bcadb3c2bc1cf60690e931aadd35fb7bd646a49",
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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": "8cf868affdc459beee1a941df0cfaba1673740e3",
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"lessThan": "2c5b8eeea006eb694c81631cd5713d494b80be90",
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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": "8cf868affdc459beee1a941df0cfaba1673740e3",
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"lessThan": "342829e042ac00f3d68d442ea92873fb6683f494",
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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": "8cf868affdc459beee1a941df0cfaba1673740e3",
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"lessThan": "fad217e16fded7f3c09f8637b0f6a224d58b5f2e",
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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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"kernel/tracepoint.c"
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],
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"versions": [
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{
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"version": "4.10",
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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": "4.10",
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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": "5.10.259",
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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": "5.15.210",
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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": "6.1.176",
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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": "6.6.140",
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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": "6.12.88",
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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": "6.18.30",
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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": "7.0.7",
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"lessThanOrEqual": "7.0.*",
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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": "7.1",
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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": "4.10",
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"versionEndExcluding": "5.10.259"
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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": "4.10",
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"versionEndExcluding": "5.15.210"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.10",
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"versionEndExcluding": "6.1.176"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.10",
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"versionEndExcluding": "6.6.140"
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.10",
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"versionEndExcluding": "6.12.88"
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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": "4.10",
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"versionEndExcluding": "6.18.30"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.10",
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"versionEndExcluding": "7.0.7"
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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": "4.10",
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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/5787052e5f69beb649f3d6a80a8aa37d9e683e4e"
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},
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{
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"url": "https://git.kernel.org/stable/c/4f1756d043e56ea2e9a6c858fb290a0cf6fc2251"
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},
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{
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"url": "https://git.kernel.org/stable/c/36ff362235307af95152d510b53c2d9b8773a342"
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},
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{
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"url": "https://git.kernel.org/stable/c/247ed8a969f981bfba3112fd4bb441eaa6cef59c"
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},
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{
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"url": "https://git.kernel.org/stable/c/7bcadb3c2bc1cf60690e931aadd35fb7bd646a49"
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},
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{
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"url": "https://git.kernel.org/stable/c/2c5b8eeea006eb694c81631cd5713d494b80be90"
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},
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{
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"url": "https://git.kernel.org/stable/c/342829e042ac00f3d68d442ea92873fb6683f494"
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},
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{
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"url": "https://git.kernel.org/stable/c/fad217e16fded7f3c09f8637b0f6a224d58b5f2e"
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}
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],
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"title": "tracepoint: balance regfunc() on func_add() failure in tracepoint_add_func()",
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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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"adp": [
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{
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"x_adpType": "supplier",
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"providerMetadata": {
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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"shortName": "siemens-SADP",
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"dateUpdated": "2026-10-15T01:21:17.317Z"
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},
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"affected": [
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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}
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],
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"references": [
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{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
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}
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]
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},
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-46196",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-06T16:11:54.855002Z"
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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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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-06T16:13:44.487Z"
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}
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}
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]
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}
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} |