201 lines
10 KiB
JSON
201 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-2026-23246",
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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": "2026-01-13T15:37:45.989Z",
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"datePublished": "2026-03-18T10:05:08.312Z",
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"dateUpdated": "2026-08-05T12:20:55.228Z"
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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": "2026-08-05T12:20:55.228Z"
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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\nwifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration\n\nlink_id is taken from the ML Reconfiguration element (control & 0x000f),\nso it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS\n(15) elements, so index 15 is out-of-bounds. Skip subelements with\nlink_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds\nwrite."
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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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 8.8,
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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:A - The vulnerability is triggered by processing crafted WiFi beacon frames received over the air. The attacker must be within WiFi range of the victim device (adjacent network).\nAC:L - The attacker can reliably trigger this by broadcasting crafted beacon frames with a spoofed BSSID containing a malicious ML Reconfiguration element. No special conditions beyond WiFi proximity are needed once the victim is associated.\nPR:N - No privileges or authentication are required. WiFi beacon frames are unencrypted management frames that any device in range can inject by spoofing the associated AP's BSSID.\nUI:N - No user interaction is required. The victim device automatically processes beacon frames from its associated AP while connected to a WiFi network.\nS:U - The vulnerability affects the kernel itself; exploitation stays within the same security authority (kernel context). There is no crossing of a virtualization or sandbox boundary.\nC:H - This is a stack-based out-of-bounds write where the attacker controls the written value. Stack corruption can be leveraged to read arbitrary memory through carefully crafted exploitation techniques.\nI:H - The stack-based buffer overflow allows the attacker to write a controlled 2-byte value past the array bounds on the stack, potentially corrupting return addresses or other stack data, which can lead to arbitrary code execution in kernel context.\nA:H - The stack corruption will at minimum cause a kernel crash/oops, resulting in a denial of service. Stack buffer overflows reliably crash the kernel when they corrupt critical stack data."
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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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"net/mac80211/mlme.c"
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],
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"versions": [
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{
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"version": "8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c",
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"lessThan": "650981e718e68005ca2760a6358134b8a98ebea4",
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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": "8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c",
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"lessThan": "bfde158d5d1322c0c2df398a8d1ccce04943be2e",
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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": "8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c",
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"lessThan": "f35ceec54d48e227fa46f8f97fd100a77b8eab15",
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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": "8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c",
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"lessThan": "d58d71c2167601762351962b9604808d3be94400",
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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": "8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c",
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"lessThan": "162d331d833dc73a3e905a24c44dd33732af1fc5",
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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/mac80211/mlme.c"
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],
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"versions": [
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{
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"version": "6.5",
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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": "6.5",
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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": "6.6.130",
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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": "6.12.77",
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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": "6.18.17",
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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": "6.19.7",
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"lessThanOrEqual": "6.19.*",
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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",
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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": "6.5",
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"versionEndExcluding": "6.6.130"
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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": "6.5",
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"versionEndExcluding": "6.12.77"
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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": "6.5",
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"versionEndExcluding": "6.18.17"
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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": "6.5",
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"versionEndExcluding": "6.19.7"
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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": "6.5",
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"versionEndExcluding": "7.0"
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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/650981e718e68005ca2760a6358134b8a98ebea4"
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},
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{
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"url": "https://git.kernel.org/stable/c/bfde158d5d1322c0c2df398a8d1ccce04943be2e"
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},
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{
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"url": "https://git.kernel.org/stable/c/f35ceec54d48e227fa46f8f97fd100a77b8eab15"
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},
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{
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"url": "https://git.kernel.org/stable/c/d58d71c2167601762351962b9604808d3be94400"
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},
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{
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"url": "https://git.kernel.org/stable/c/162d331d833dc73a3e905a24c44dd33732af1fc5"
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}
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],
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"title": "wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration",
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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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} |