282 lines
14 KiB
JSON
282 lines
14 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-2026-74382",
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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": "2026-08-15T05:44:03.890Z",
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"datePublished": "2026-08-15T05:58:59.106Z",
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"dateUpdated": "2026-11-06T17:05:45.139Z"
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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": "2026-08-17T05:18:20.179Z"
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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/sched: cls_bpf: prevent unbounded recursion in offload rollback\n\nQuan Sun reported [1] a stack overflow in cls_bpf_offload_cmd().\n\nReproducer on netdevsim: add a skip_sw cls_bpf filter, set the\nbpf_tc_accept debugfs knob to 0, then `tc filter replace`. The replace\ncalls tc_setup_cb_replace() which fails. cls_bpf_offload_cmd() then\nswaps prog/oldprog and recursively calls itself to roll back. But\nbpf_tc_accept=0 makes the rollback fail too, which triggers yet another\nrollback frame with the same arguments, and so on until the stack is\nexhausted.\n\nbpf_tc_accept is just a convenient knob for the reproducer. Any driver\nwhose tc_setup_cb_replace() fails twice in a row can hit the same loop,\nso this is not a netdevsim-only issue.\n\nTwo ways to fix it:\n\n 1) Have the rollback call tc_setup_cb_add() on oldprog instead of\n re-entering cls_bpf_offload_cmd().\n 2) Mark the rollback frame with a flag and skip a second-level\n rollback from inside it.\n\nGo with (2). It is the smaller change and keeps the original behaviour:\nthe rollback still goes through tc_setup_cb_replace(), so the driver\ngets one real chance to restore its state. If that attempt also fails,\nwe just return the original error instead of recursing.\n\n[1]: https://lore.kernel.org/bpf/ce5a6005-3c5e-4696-9e05-eba9461dc860@std.uestc.edu.cn/T/#u"
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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/sched/cls_bpf.c"
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],
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"versions": [
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{
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"version": "102740bd9436a3a6ba129af3a48271d794009fa5",
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"lessThan": "a018f208ab7512380bd4cf670064d48cba00a1b1",
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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": "102740bd9436a3a6ba129af3a48271d794009fa5",
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"lessThan": "33373e1f378a501bc51aa73312f74295c84e3101",
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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": "102740bd9436a3a6ba129af3a48271d794009fa5",
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"lessThan": "e2d3b7bab3748c811dc5750ce9a8d62bc7f90ed7",
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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": "102740bd9436a3a6ba129af3a48271d794009fa5",
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"lessThan": "4a76953c3ed043797e81529b9395e9ca6f4c7609",
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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": "102740bd9436a3a6ba129af3a48271d794009fa5",
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"lessThan": "1387f252a242a51bfbb6eace29c8f8db21b457da",
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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": "102740bd9436a3a6ba129af3a48271d794009fa5",
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"lessThan": "10753da2d659dd425a6e620f47f86852d604f67f",
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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": "102740bd9436a3a6ba129af3a48271d794009fa5",
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"lessThan": "3fa6fb5d771c992ebedbfa7331c6bcc6f33f89b7",
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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": "102740bd9436a3a6ba129af3a48271d794009fa5",
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"lessThan": "27db54b90bcc7c37867fe664107fa25ea6a116e4",
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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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"net/sched/cls_bpf.c"
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],
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"versions": [
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{
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"version": "4.15",
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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": "4.15",
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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": "5.10.261",
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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": "5.15.212",
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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": "6.1.178",
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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": "6.6.145",
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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": "6.12.97",
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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": "6.18.40",
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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": "7.1.5",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "4.15",
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"versionEndExcluding": "5.10.261"
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"versionEndExcluding": "6.6.145"
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{
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"versionStartIncluding": "4.15",
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"versionEndExcluding": "6.12.97"
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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/a018f208ab7512380bd4cf670064d48cba00a1b1"
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},
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{
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"url": "https://git.kernel.org/stable/c/33373e1f378a501bc51aa73312f74295c84e3101"
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},
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{
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"url": "https://git.kernel.org/stable/c/e2d3b7bab3748c811dc5750ce9a8d62bc7f90ed7"
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},
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{
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"url": "https://git.kernel.org/stable/c/4a76953c3ed043797e81529b9395e9ca6f4c7609"
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},
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{
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"url": "https://git.kernel.org/stable/c/1387f252a242a51bfbb6eace29c8f8db21b457da"
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},
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{
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"url": "https://git.kernel.org/stable/c/10753da2d659dd425a6e620f47f86852d604f67f"
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},
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{
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"url": "https://git.kernel.org/stable/c/3fa6fb5d771c992ebedbfa7331c6bcc6f33f89b7"
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},
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{
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"url": "https://git.kernel.org/stable/c/27db54b90bcc7c37867fe664107fa25ea6a116e4"
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}
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],
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"title": "net/sched: cls_bpf: prevent unbounded recursion in offload rollback",
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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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"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-2026-74382",
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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": "2026-11-06T16:56:47.875311Z"
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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": "2026-11-06T17:05:45.139Z"
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}
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}
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]
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}
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} |