263 lines
17 KiB
JSON
263 lines
17 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-2025-21729",
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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": "2024-12-29T08:45:45.755Z",
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"datePublished": "2025-02-27T02:07:34.711Z",
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"dateUpdated": "2026-10-30T12:20:47.867Z"
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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": "2026-10-30T12:20:47.867Z"
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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: rtw89: fix race between cancel_hw_scan and hw_scan completion\n\nThe rtwdev->scanning flag isn't protected by mutex originally, so\ncancel_hw_scan can pass the condition, but suddenly hw_scan completion\nunset the flag and calls ieee80211_scan_completed() that will free\nlocal->hw_scan_req. Then, cancel_hw_scan raises null-ptr-deref and\nuse-after-free. Fix it by moving the check condition to where\nprotected by mutex.\n\n KASAN: null-ptr-deref in range [0x0000000000000088-0x000000000000008f]\n CPU: 2 PID: 6922 Comm: kworker/2:2 Tainted: G OE\n Hardware name: LENOVO 2356AD1/2356AD1, BIOS G7ETB6WW (2.76 ) 09/10/2019\n Workqueue: events cfg80211_conn_work [cfg80211]\n RIP: 0010:rtw89_fw_h2c_scan_offload_be+0xc33/0x13c3 [rtw89_core]\n Code: 00 45 89 6c 24 1c 0f 85 23 01 00 00 48 8b 85 20 ff ff ff 48 8d\n RSP: 0018:ffff88811fd9f068 EFLAGS: 00010206\n RAX: dffffc0000000000 RBX: ffff88811fd9f258 RCX: 0000000000000001\n RDX: 0000000000000011 RSI: 0000000000000001 RDI: 0000000000000089\n RBP: ffff88811fd9f170 R08: 0000000000000000 R09: 0000000000000000\n R10: ffff88811fd9f108 R11: 0000000000000000 R12: ffff88810e47f960\n R13: 0000000000000000 R14: 000000000000ffff R15: 0000000000000000\n FS: 0000000000000000(0000) GS:ffff8881d6f00000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007531dfca55b0 CR3: 00000001be296004 CR4: 00000000001706e0\n Call Trace:\n <TASK>\n ? show_regs+0x61/0x73\n ? __die_body+0x20/0x73\n ? die_addr+0x4f/0x7b\n ? exc_general_protection+0x191/0x1db\n ? asm_exc_general_protection+0x27/0x30\n ? rtw89_fw_h2c_scan_offload_be+0xc33/0x13c3 [rtw89_core]\n ? rtw89_fw_h2c_scan_offload_be+0x458/0x13c3 [rtw89_core]\n ? __pfx_rtw89_fw_h2c_scan_offload_be+0x10/0x10 [rtw89_core]\n ? do_raw_spin_lock+0x75/0xdb\n ? __pfx_do_raw_spin_lock+0x10/0x10\n rtw89_hw_scan_offload+0xb5e/0xbf7 [rtw89_core]\n ? _raw_spin_unlock+0xe/0x24\n ? __mutex_lock.constprop.0+0x40c/0x471\n ? __pfx_rtw89_hw_scan_offload+0x10/0x10 [rtw89_core]\n ? __mutex_lock_slowpath+0x13/0x1f\n ? mutex_lock+0xa2/0xdc\n ? __pfx_mutex_lock+0x10/0x10\n rtw89_hw_scan_abort+0x58/0xb7 [rtw89_core]\n rtw89_ops_cancel_hw_scan+0x120/0x13b [rtw89_core]\n ieee80211_scan_cancel+0x468/0x4d0 [mac80211]\n ieee80211_prep_connection+0x858/0x899 [mac80211]\n ieee80211_mgd_auth+0xbea/0xdde [mac80211]\n ? __pfx_ieee80211_mgd_auth+0x10/0x10 [mac80211]\n ? cfg80211_find_elem+0x15/0x29 [cfg80211]\n ? is_bss+0x1b7/0x1d7 [cfg80211]\n ieee80211_auth+0x18/0x27 [mac80211]\n cfg80211_mlme_auth+0x3bb/0x3e7 [cfg80211]\n cfg80211_conn_do_work+0x410/0xb81 [cfg80211]\n ? __pfx_cfg80211_conn_do_work+0x10/0x10 [cfg80211]\n ? __kasan_check_read+0x11/0x1f\n ? psi_group_change+0x8bc/0x944\n ? __kasan_check_write+0x14/0x22\n ? mutex_lock+0x8e/0xdc\n ? __pfx_mutex_lock+0x10/0x10\n ? __pfx___radix_tree_lookup+0x10/0x10\n cfg80211_conn_work+0x245/0x34d [cfg80211]\n ? __pfx_cfg80211_conn_work+0x10/0x10 [cfg80211]\n ? update_cfs_rq_load_avg+0x3bc/0x3d7\n ? sched_clock_noinstr+0x9/0x1a\n ? sched_clock+0x10/0x24\n ? sched_clock_cpu+0x7e/0x42e\n ? newidle_balance+0x796/0x937\n ? __pfx_sched_clock_cpu+0x10/0x10\n ? __pfx_newidle_balance+0x10/0x10\n ? __kasan_check_read+0x11/0x1f\n ? psi_group_change+0x8bc/0x944\n ? _raw_spin_unlock+0xe/0x24\n ? raw_spin_rq_unlock+0x47/0x54\n ? raw_spin_rq_unlock_irq+0x9/0x1f\n ? finish_task_switch.isra.0+0x347/0x586\n ? __schedule+0x27bf/0x2892\n ? mutex_unlock+0x80/0xd0\n ? do_raw_spin_lock+0x75/0xdb\n ? __pfx___schedule+0x10/0x10\n process_scheduled_works+0x58c/0x821\n worker_thread+0x4c7/0x586\n ? __kasan_check_read+0x11/0x1f\n kthread+0x285/0x294\n ? __pfx_worker_thread+0x10/0x10\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x29/0x6f\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1b/0x30\n </TASK>"
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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 vulnerable path is `ieee80211_ops::cancel_hw_scan`, reached only through local wireless-stack operations (nl80211 TRIGGER_SCAN plus a connect/auth that triggers `ieee80211_scan_cancel`); no attacker-supplied frame is parsed on this path. An adjacent attacker can only indirectly nudge the local supplicant into scan/reconnect cycles, so delivery is local.\nAC:L - The attacker drives both sides of the race — it starts the hardware scan and issues the connect that invokes cancel_hw_scan — and the window is wide because the cancel thread blocks on `rtwdev->mutex` for the entire duration of the firmware-driven completion work. The sequence can be repeated indefinitely until the race is won.\nPR:L - Only the ability to request scans and connections is needed; on typical desktop and mobile deployments an ordinary logged-in user can drive both through NetworkManager/wpa_supplicant (polkit/Settings), and the underlying nl80211 gate is the namespaced `GENL_UNS_ADMIN_PERM` capability rather than real root.\nUI:N - No victim action is needed — the attacker issues the scan and connect requests itself, and the crash trace shows the trigger arriving from the automatic `cfg80211_conn_work` SME reconnect path.\nS:U - The corruption and the crash are confined to the kernel's own memory and the rtw89 driver state; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `rtwvif->scan_req`/`scan_ies` dangle into the kfree'd, heap-sprayable `local->hw_scan_req`, and the driver dereferences pointers read out of it (`req->channels[idx]`, `req->ies`), giving an attacker-groomable read primitive that can disclose kernel memory.\nI:H - The use-after-free on `local->hw_scan_req` lets an attacker reclaim the freed allocation and control the fields the driver uses to build firmware H2C commands and channel lists, which is exploitable for memory corruption and control-flow influence.\nA:H - The documented outcome is a kernel oops (`null-ptr-deref` on `req->no_cck`) inside a workqueue while `rtwdev->mutex` and the wiphy mutex are held, killing the worker with locks held and leaving the wireless device — and potentially the system — hung."
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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/net/wireless/realtek/rtw89/mac80211.c"
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],
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"versions": [
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{
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"version": "895907779752606f6a4795abfc008509f8e38314",
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"lessThan": "02d78fb7fa1f4f4d6ecc6034e81c6db38385ce96",
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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": "895907779752606f6a4795abfc008509f8e38314",
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"lessThan": "7368f88b2e62d043cd64fe7bdd5c3c2a2f9795b0",
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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": "895907779752606f6a4795abfc008509f8e38314",
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"lessThan": "2403cb3c235d5e339b580cc3a825493769fadca8",
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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": "895907779752606f6a4795abfc008509f8e38314",
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"lessThan": "5afcd6fcd1e1c1fd6bcc9a360c121d10eddade67",
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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": "895907779752606f6a4795abfc008509f8e38314",
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"lessThan": "ba4bb0402c60e945c4c396c51f0acac3c3e3ea5c",
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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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"drivers/net/wireless/realtek/rtw89/mac80211.c"
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],
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"versions": [
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{
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"version": "5.18",
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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": "5.18",
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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": "6.1.191",
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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": "6.12.13",
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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": "6.13.2",
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"lessThanOrEqual": "6.13.*",
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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": "6.14",
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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": "5.18",
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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": "5.18",
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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": "5.18",
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"versionEndExcluding": "6.12.13"
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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": "5.18",
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"versionEndExcluding": "6.13.2"
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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": "5.18",
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"versionEndExcluding": "6.14"
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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/02d78fb7fa1f4f4d6ecc6034e81c6db38385ce96"
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},
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{
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"url": "https://git.kernel.org/stable/c/7368f88b2e62d043cd64fe7bdd5c3c2a2f9795b0"
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},
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{
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"url": "https://git.kernel.org/stable/c/2403cb3c235d5e339b580cc3a825493769fadca8"
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},
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{
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"url": "https://git.kernel.org/stable/c/5afcd6fcd1e1c1fd6bcc9a360c121d10eddade67"
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},
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{
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"url": "https://git.kernel.org/stable/c/ba4bb0402c60e945c4c396c51f0acac3c3e3ea5c"
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}
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],
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"title": "wifi: rtw89: fix race between cancel_hw_scan and hw_scan completion",
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.8,
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
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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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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "HIGH"
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}
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},
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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-2025-21729",
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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": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2025-02-27T18:14:34.158732Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-416",
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"description": "CWE-416 Use After Free"
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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": "2025-02-27T18:22:29.958Z"
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}
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}
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]
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}
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} |