187 lines
10 KiB
JSON
187 lines
10 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-2026-23451",
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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": "2026-01-13T15:37:46.020Z",
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"datePublished": "2026-04-03T15:15:33.776Z",
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"dateUpdated": "2026-10-30T12:24:07.666Z"
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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": "2026-10-30T12:24:07.666Z"
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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\nbonding: prevent potential infinite loop in bond_header_parse()\n\nbond_header_parse() can loop if a stack of two bonding devices is setup,\nbecause skb->dev always points to the hierarchy top.\n\nAdd new \"const struct net_device *dev\" parameter to\n(struct header_ops)->parse() method to make sure the recursion\nis bounded, and that the final leaf parse method is called."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:N - In a reasonable affected deployment, a remote peer can send a packet, including GRE traffic, that arrives through a stacked bonding hierarchy and triggers AF_PACKET/NFLOG/NFQUEUE hardware-address parsing on the top bond. The vulnerable code is reached from network packet receive processing, not from a physical or purely local-only interface.\nAC:L - Once the stacked bond and packet metadata consumer exist, a single matching received packet deterministically enters `dev_parse_header()` and recurses indefinitely. There is no race, timing window, heap shaping, or attacker-uncontrolled probabilistic condition needed to trigger the denial of service.\nPR:N - The network-triggered path does not require the remote attacker to authenticate or hold local privileges; they only need to send traffic to the affected interface/tunnel. Although local namespace users can also create a reproducer with CAP_NET_ADMIN/CAP_NET_RAW in their namespace, the highest reasonable scenario requires no attacker privileges.\nUI:N - No victim action is required at exploit time when the affected bond stack and packet logging/capture path are already active. The packet alone triggers the vulnerable parse path.\nS:U - The impact remains within the kernel/networking security authority of the vulnerable system. There is no VM escape, sandbox boundary crossing, or separate security scope affected.\nC:N - The bug is an unbounded recursive call caused by using the top-level `skb->dev`; it does not create an information disclosure or controlled read primitive.\nI:N - The vulnerable path does not corrupt attacker-selected data or provide a write/control-flow primitive; the final lower-device parser is never reached. The observed consequence is recursion leading to denial of service.\nA:H - The infinite recursion can hang kernel packet processing and lead to stack overflow/lockdep exhaustion or kernel crash. This is a high availability impact."
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}
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]
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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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"drivers/firewire/net.c",
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"drivers/net/bonding/bond_main.c",
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"include/linux/etherdevice.h",
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"include/linux/if_ether.h",
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"include/linux/netdevice.h",
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"net/ethernet/eth.c",
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"net/ipv4/ip_gre.c",
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"net/mac802154/iface.c",
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"net/phonet/af_phonet.c"
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],
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"versions": [
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{
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"version": "5d0fb9806ab6cf2c3cfba0e1b8c701da65e25af8",
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"lessThan": "9532d0d0ad1d726c06f807e8f0f1ec93cbabb452",
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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": "9baf26a91565b7bb2b1d9f99aaf884a2b28c2f6d",
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"lessThan": "946bb6cacf0ccada7bc80f1cfa07c1ed79511c1c",
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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": "6ac890f1d60ac3707ee8dae15a67d9a833e49956",
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"lessThan": "4172a7901cf43fe1cc63ef7a2ef33735ff7b7d13",
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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": "95597d11dc8bddb2b9a051c9232000bfbb5e43ba",
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"lessThan": "9b49c854f14f5e2d493e562a1e28d2e57fe37371",
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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": "950803f7254721c1c15858fbbfae3deaaeeecb11",
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"lessThan": "b7405dcf7385445e10821777143f18c3ce20fa04",
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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": "b1f22a658a7b20bcb7d34d40cb2ef3e52847e2fb",
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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": "6.1.191",
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"lessThan": "6.2",
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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": "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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"drivers/firewire/net.c",
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"drivers/net/bonding/bond_main.c",
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"include/linux/etherdevice.h",
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"include/linux/if_ether.h",
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"include/linux/netdevice.h",
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"net/ethernet/eth.c",
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"net/ipv4/ip_gre.c",
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"net/mac802154/iface.c",
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"net/phonet/af_phonet.c"
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],
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"versions": [
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{
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"version": "6.18.19",
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"lessThan": "6.18.20",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.19.9",
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"lessThan": "6.19.10",
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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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"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": "6.18.19",
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"versionEndExcluding": "6.18.20"
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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": "6.19.9",
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"versionEndExcluding": "6.19.10"
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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": "6.1.191"
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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/9532d0d0ad1d726c06f807e8f0f1ec93cbabb452"
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},
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{
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"url": "https://git.kernel.org/stable/c/946bb6cacf0ccada7bc80f1cfa07c1ed79511c1c"
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},
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{
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"url": "https://git.kernel.org/stable/c/4172a7901cf43fe1cc63ef7a2ef33735ff7b7d13"
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},
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{
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"url": "https://git.kernel.org/stable/c/9b49c854f14f5e2d493e562a1e28d2e57fe37371"
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},
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{
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"url": "https://git.kernel.org/stable/c/b7405dcf7385445e10821777143f18c3ce20fa04"
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}
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],
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"title": "bonding: prevent potential infinite loop in bond_header_parse()",
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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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} |