222 lines
13 KiB
JSON
222 lines
13 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-2026-90343",
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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": "2026-09-11T19:38:34.804Z",
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"datePublished": "2026-09-17T16:08:53.670Z",
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"dateUpdated": "2026-10-30T12:35:16.376Z"
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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": "2026-10-30T12:35:16.376Z"
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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: cfg80211: stop PMSR before P2P and NAN teardown\n\nPMSR request teardown must abort active measurements while the\nwireless_dev is still present in the driver. cfg80211_leave_locked() and\ncfg80211_stop_pd() already do this before invoking the driver's stop\ncallback, but cfg80211_stop_p2p_device() and cfg80211_stop_nan() do not.\n\nThose helpers are also called directly by nl80211, rfkill shutdown, and\nwireless_dev unregister paths. If one of these paths stops a P2P device\nor NAN interface with a pending request, it removes the mac80211\nsubinterface from the driver first. Subsequent request cleanup cannot\nreach the lower driver's abort callback, but cfg80211 frees the request\nregardless. Driver state can then retain a stale request and use it when\nit later reports a result.\n\nCall cfg80211_pmsr_wdev_down() before stopping the P2P device or NAN\ninterface. This keeps lower-driver request state and cfg80211 request\nownership in sync for all of the helpers' callers."
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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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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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:L - The UAF is created when nl80211_stop_p2p_device() or nl80211_stop_nan() (also cfg80211_shutdown_all_interfaces() and _cfg80211_unregister_wdev()) call cfg80211_stop_p2p_device()/cfg80211_stop_nan() with a pending cfg80211_pmsr_request still on wdev->pmsr_list; those paths are local generic-netlink/rfkill/unregister, not parsing of a received 802.11/FTM frame.\nAC:L - The attacker issues NL80211_CMD_PEER_MEASUREMENT_START (iwlwifi stores mvm->ftm_initiator.req; hwsim stores data->pmsr_request), then NL80211_CMD_STOP_P2P_DEVICE so drv_remove_interface() clears IEEE80211_SDATA_IN_DRIVER, then closes the socket so nl80211_netlink_notify()->cfg80211_release_pmsr() kfree()s the request while drv_abort_pmsr() returns without calling the driver.\nPR:L - NL80211_CMD_NEW_INTERFACE, NL80211_CMD_START_P2P_DEVICE, NL80211_CMD_PEER_MEASUREMENT_START and NL80211_CMD_STOP_P2P_DEVICE are GENL_UNS_ADMIN_PERM, checked as netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN); an unprivileged user obtains that via unshare -Urn. (STOP_NAN is GENL_ADMIN_PERM, but the P2P path is sufficient.)\nUI:N - The attacker creates/starts the P2P_DEVICE wdev, starts the PMSR request, stops it via NL80211_CMD_STOP_P2P_DEVICE, and closes their own nl80211 socket; no other user must associate, mount, or confirm anything.\nS:U - The dangling cfg80211_pmsr_request is used in-process by iwl_mvm_ftm_range_resp()/iwl_mvm_ftm_restart() and cfg80211_pmsr_report() in the same kernel; this does not cross a VM, IOMMU, or sandbox boundary.\nC:H - After kfree(req) in cfg80211_pmsr_process_abort(), iwl_mvm_ftm_range_resp() and iwl_mvm_ftm_restart() still load mvm->ftm_initiator.req->cookie, n_peers and peers[].addr and pass the object to cfg80211_pmsr_report(); that heap UAF is an arbitrary read primitive.\nI:H - The same stale ftm_initiator.req / hwsim pmsr_request is later passed to cfg80211_pmsr_complete() (list_del on the freed object) and used as live driver state, giving a heap write/control-flow hijack primitive from the UAF.\nA:H - iwl_mvm_ftm_range_resp() dereferences the freed cfg80211_pmsr_request when firmware later delivers a TOF range response (or iwl_mvm_ftm_restart() on FW restart), which oopses the kernel even without a full exploit."
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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/wireless/core.c"
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],
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"versions": [
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{
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"version": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2",
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"lessThan": "af158188ef7b4e89d0a3c04680a98d90b3822ec5",
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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": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2",
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"lessThan": "9374943fc5a45915e4ea8b597b6a17d3b571bcbf",
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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": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2",
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"lessThan": "dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4",
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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": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2",
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"lessThan": "7a22cbc6c6bdd3c3811b4ce13875685c520f94de",
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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": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2",
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"lessThan": "db3439ad11ac5e52decdefe784c98b21c3757848",
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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": "9bb7e0f24e7e7d00daa1219b14539e2e602649b2",
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"lessThan": "6c5fc504d0d6934132637aa3db4b9b58148eaa78",
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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/wireless/core.c"
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],
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"versions": [
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{
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"version": "5.0",
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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": "5.0",
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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": "6.1.191",
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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": "6.6.160",
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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": "6.12.114",
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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": "6.18.52",
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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": "7.2.6",
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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": "5.0",
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"versionEndExcluding": "6.1.191"
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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": "5.0",
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"versionEndExcluding": "6.6.160"
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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": "5.0",
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"versionEndExcluding": "6.12.114"
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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": "5.0",
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"versionEndExcluding": "6.18.52"
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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": "5.0",
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"versionEndExcluding": "7.2.6"
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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": "5.0",
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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/af158188ef7b4e89d0a3c04680a98d90b3822ec5"
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},
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{
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"url": "https://git.kernel.org/stable/c/9374943fc5a45915e4ea8b597b6a17d3b571bcbf"
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},
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{
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"url": "https://git.kernel.org/stable/c/dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4"
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},
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{
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"url": "https://git.kernel.org/stable/c/7a22cbc6c6bdd3c3811b4ce13875685c520f94de"
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},
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{
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"url": "https://git.kernel.org/stable/c/db3439ad11ac5e52decdefe784c98b21c3757848"
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},
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{
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"url": "https://git.kernel.org/stable/c/6c5fc504d0d6934132637aa3db4b9b58148eaa78"
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}
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],
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"title": "wifi: cfg80211: stop PMSR before P2P and NAN teardown",
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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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} |