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CVE-2023-53213 (GCVE-0-2023-53213)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:21 – Updated: 2026-08-05 09:13
VLAI
Title
wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies() Fix a slab-out-of-bounds read that occurs in kmemdup() called from brcmf_get_assoc_ies(). The bug could occur when assoc_info->req_len, data from a URB provided by a USB device, is bigger than the size of buffer which is defined as WL_EXTRA_BUF_MAX. Add the size check for req_len/resp_len of assoc_info. Found by a modified version of syzkaller. [ 46.592467][ T7] ================================================================== [ 46.594687][ T7] BUG: KASAN: slab-out-of-bounds in kmemdup+0x3e/0x50 [ 46.596572][ T7] Read of size 3014656 at addr ffff888019442000 by task kworker/0:1/7 [ 46.598575][ T7] [ 46.599157][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G O 5.14.0+ #145 [ 46.601333][ T7] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014 [ 46.604360][ T7] Workqueue: events brcmf_fweh_event_worker [ 46.605943][ T7] Call Trace: [ 46.606584][ T7] dump_stack_lvl+0x8e/0xd1 [ 46.607446][ T7] print_address_description.constprop.0.cold+0x93/0x334 [ 46.608610][ T7] ? kmemdup+0x3e/0x50 [ 46.609341][ T7] kasan_report.cold+0x79/0xd5 [ 46.610151][ T7] ? kmemdup+0x3e/0x50 [ 46.610796][ T7] kasan_check_range+0x14e/0x1b0 [ 46.611691][ T7] memcpy+0x20/0x60 [ 46.612323][ T7] kmemdup+0x3e/0x50 [ 46.612987][ T7] brcmf_get_assoc_ies+0x967/0xf60 [ 46.613904][ T7] ? brcmf_notify_vif_event+0x3d0/0x3d0 [ 46.614831][ T7] ? lock_chain_count+0x20/0x20 [ 46.615683][ T7] ? mark_lock.part.0+0xfc/0x2770 [ 46.616552][ T7] ? lock_chain_count+0x20/0x20 [ 46.617409][ T7] ? mark_lock.part.0+0xfc/0x2770 [ 46.618244][ T7] ? lock_chain_count+0x20/0x20 [ 46.619024][ T7] brcmf_bss_connect_done.constprop.0+0x241/0x2e0 [ 46.620019][ T7] ? brcmf_parse_configure_security.isra.0+0x2a0/0x2a0 [ 46.620818][ T7] ? __lock_acquire+0x181f/0x5790 [ 46.621462][ T7] brcmf_notify_connect_status+0x448/0x1950 [ 46.622134][ T7] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 46.622736][ T7] ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0 [ 46.623390][ T7] ? find_held_lock+0x2d/0x110 [ 46.623962][ T7] ? brcmf_fweh_event_worker+0x19f/0xc60 [ 46.624603][ T7] ? mark_held_locks+0x9f/0xe0 [ 46.625145][ T7] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0 [ 46.625871][ T7] ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0 [ 46.626545][ T7] brcmf_fweh_call_event_handler.isra.0+0x90/0x100 [ 46.627338][ T7] brcmf_fweh_event_worker+0x557/0xc60 [ 46.627962][ T7] ? brcmf_fweh_call_event_handler.isra.0+0x100/0x100 [ 46.628736][ T7] ? rcu_read_lock_sched_held+0xa1/0xd0 [ 46.629396][ T7] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 46.629970][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 46.630649][ T7] process_one_work+0x92b/0x1460 [ 46.631205][ T7] ? pwq_dec_nr_in_flight+0x330/0x330 [ 46.631821][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 46.632347][ T7] worker_thread+0x95/0xe00 [ 46.632832][ T7] ? __kthread_parkme+0x115/0x1e0 [ 46.633393][ T7] ? process_one_work+0x1460/0x1460 [ 46.633957][ T7] kthread+0x3a1/0x480 [ 46.634369][ T7] ? set_kthread_struct+0x120/0x120 [ 46.634933][ T7] ret_from_fork+0x1f/0x30 [ 46.635431][ T7] [ 46.635687][ T7] Allocated by task 7: [ 46.636151][ T7] kasan_save_stack+0x1b/0x40 [ 46.636628][ T7] __kasan_kmalloc+0x7c/0x90 [ 46.637108][ T7] kmem_cache_alloc_trace+0x19e/0x330 [ 46.637696][ T7] brcmf_cfg80211_attach+0x4a0/0x4040 [ 46.638275][ T7] brcmf_attach+0x389/0xd40 [ 46.638739][ T7] brcmf_usb_probe+0x12de/0x1690 [ 46.639279][ T7] usb_probe_interface+0x2aa/0x760 [ 46.639820][ T7] really_probe+0x205/0xb70 [ 46.640342][ T7] __driver_probe_device+0 ---truncated---
Severity
8.1 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 17:48 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: cf2b448852abd47cee21007b8313fbf962bf3c9a , < ac5305e5d227b9af3aae25fa83380d3ff0225b73 (git)
Affected: cf2b448852abd47cee21007b8313fbf962bf3c9a , < 39f9bd880abac6068bedb24a4e16e7bd26bf92da (git)
Affected: cf2b448852abd47cee21007b8313fbf962bf3c9a , < 425eea395f1f5ae349fb55f7fe51d833a5324bfe (git)
Affected: cf2b448852abd47cee21007b8313fbf962bf3c9a , < 549825602e3e6449927ca1ea1a08fd89868439df (git)
Affected: cf2b448852abd47cee21007b8313fbf962bf3c9a , < 936a23293bbb3332bdf4cdb9c1496e80cb0bc2c8 (git)
Affected: cf2b448852abd47cee21007b8313fbf962bf3c9a , < e29661611e6e71027159a3140e818ef3b99f32dd (git)
Affected: cf2b448852abd47cee21007b8313fbf962bf3c9a , < 228186629ea970cc78b7d7d5f593f2d32fddf9f6 (git)
Affected: cf2b448852abd47cee21007b8313fbf962bf3c9a , < 21bee3e649d87f78fe8aef6ae02edd3d6f310fd0 (git)
Affected: cf2b448852abd47cee21007b8313fbf962bf3c9a , < 0da40e018fd034d87c9460123fa7f897b69fdee7 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.37
Unaffected: 0 , < 2.6.37 (semver)
Unaffected: 4.14.315 , ≤ 4.14.* (semver)
Unaffected: 4.19.283 , ≤ 4.19.* (semver)
Unaffected: 5.4.243 , ≤ 5.4.* (semver)
Unaffected: 5.10.180 , ≤ 5.10.* (semver)
Unaffected: 5.15.110 , ≤ 5.15.* (semver)
Unaffected: 6.1.27 , ≤ 6.1.* (semver)
Unaffected: 6.2.14 , ≤ 6.2.* (semver)
Unaffected: 6.3.1 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()\n\nFix a slab-out-of-bounds read that occurs in kmemdup() called from\nbrcmf_get_assoc_ies().\nThe bug could occur when assoc_info-\u003ereq_len, data from a URB provided\nby a USB device, is bigger than the size of buffer which is defined as\nWL_EXTRA_BUF_MAX.\n\nAdd the size check for req_len/resp_len of assoc_info.\n\nFound by a modified version of syzkaller.\n\n[   46.592467][    T7] ==================================================================\n[   46.594687][    T7] BUG: KASAN: slab-out-of-bounds in kmemdup+0x3e/0x50\n[   46.596572][    T7] Read of size 3014656 at addr ffff888019442000 by task kworker/0:1/7\n[   46.598575][    T7]\n[   46.599157][    T7] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G           O      5.14.0+ #145\n[   46.601333][    T7] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014\n[   46.604360][    T7] Workqueue: events brcmf_fweh_event_worker\n[   46.605943][    T7] Call Trace:\n[   46.606584][    T7]  dump_stack_lvl+0x8e/0xd1\n[   46.607446][    T7]  print_address_description.constprop.0.cold+0x93/0x334\n[   46.608610][    T7]  ? kmemdup+0x3e/0x50\n[   46.609341][    T7]  kasan_report.cold+0x79/0xd5\n[   46.610151][    T7]  ? kmemdup+0x3e/0x50\n[   46.610796][    T7]  kasan_check_range+0x14e/0x1b0\n[   46.611691][    T7]  memcpy+0x20/0x60\n[   46.612323][    T7]  kmemdup+0x3e/0x50\n[   46.612987][    T7]  brcmf_get_assoc_ies+0x967/0xf60\n[   46.613904][    T7]  ? brcmf_notify_vif_event+0x3d0/0x3d0\n[   46.614831][    T7]  ? lock_chain_count+0x20/0x20\n[   46.615683][    T7]  ? mark_lock.part.0+0xfc/0x2770\n[   46.616552][    T7]  ? lock_chain_count+0x20/0x20\n[   46.617409][    T7]  ? mark_lock.part.0+0xfc/0x2770\n[   46.618244][    T7]  ? lock_chain_count+0x20/0x20\n[   46.619024][    T7]  brcmf_bss_connect_done.constprop.0+0x241/0x2e0\n[   46.620019][    T7]  ? brcmf_parse_configure_security.isra.0+0x2a0/0x2a0\n[   46.620818][    T7]  ? __lock_acquire+0x181f/0x5790\n[   46.621462][    T7]  brcmf_notify_connect_status+0x448/0x1950\n[   46.622134][    T7]  ? rcu_read_lock_bh_held+0xb0/0xb0\n[   46.622736][    T7]  ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0\n[   46.623390][    T7]  ? find_held_lock+0x2d/0x110\n[   46.623962][    T7]  ? brcmf_fweh_event_worker+0x19f/0xc60\n[   46.624603][    T7]  ? mark_held_locks+0x9f/0xe0\n[   46.625145][    T7]  ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0\n[   46.625871][    T7]  ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0\n[   46.626545][    T7]  brcmf_fweh_call_event_handler.isra.0+0x90/0x100\n[   46.627338][    T7]  brcmf_fweh_event_worker+0x557/0xc60\n[   46.627962][    T7]  ? brcmf_fweh_call_event_handler.isra.0+0x100/0x100\n[   46.628736][    T7]  ? rcu_read_lock_sched_held+0xa1/0xd0\n[   46.629396][    T7]  ? rcu_read_lock_bh_held+0xb0/0xb0\n[   46.629970][    T7]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n[   46.630649][    T7]  process_one_work+0x92b/0x1460\n[   46.631205][    T7]  ? pwq_dec_nr_in_flight+0x330/0x330\n[   46.631821][    T7]  ? rwlock_bug.part.0+0x90/0x90\n[   46.632347][    T7]  worker_thread+0x95/0xe00\n[   46.632832][    T7]  ? __kthread_parkme+0x115/0x1e0\n[   46.633393][    T7]  ? process_one_work+0x1460/0x1460\n[   46.633957][    T7]  kthread+0x3a1/0x480\n[   46.634369][    T7]  ? set_kthread_struct+0x120/0x120\n[   46.634933][    T7]  ret_from_fork+0x1f/0x30\n[   46.635431][    T7]\n[   46.635687][    T7] Allocated by task 7:\n[   46.636151][    T7]  kasan_save_stack+0x1b/0x40\n[   46.636628][    T7]  __kasan_kmalloc+0x7c/0x90\n[   46.637108][    T7]  kmem_cache_alloc_trace+0x19e/0x330\n[   46.637696][    T7]  brcmf_cfg80211_attach+0x4a0/0x4040\n[   46.638275][    T7]  brcmf_attach+0x389/0xd40\n[   46.638739][    T7]  brcmf_usb_probe+0x12de/0x1690\n[   46.639279][    T7]  usb_probe_interface+0x2aa/0x760\n[   46.639820][    T7]  really_probe+0x205/0xb70\n[   46.640342][    T7]  __driver_probe_device+0\n---truncated---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
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          "scenarios": [
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              "value": "AV:A - brcmf_get_assoc_ies() runs on association/roam completion and trusts assoc_info req_len/resp_len from the fullmac firmware path driven by a wireless peer association; a malicious AP (or WiFi-NIC firmware compromise, treated as an over-the-air class) within radio range can induce oversized lengths, matching Adjacent scoring for unvalidated WiFi firmware-event bugs.\nAC:L - The attacker fully controls the length fields returned for the assoc_info iovar (malicious AP IE sizes or forged firmware/USB responses) and triggers connect/roam completion deterministically, with no race or layout dependency outside attacker influence.\nPR:N - No account or capability on the victim is required; a same-segment attacker only needs the station to associate (evil twin / open hotspot), and the vulnerable worker runs in kernel context with no authentication gate on the assoc_info response.\nUI:N - Auto-reconnect to an evil twin of a saved SSID, or NetworkManager bringing up a newly attached WiFi interface, completes association without further victim action; the attacker\u2019s presence on the air segment is already priced into AV:A.\nS:U - The OOB read and nl80211 disclosure stay inside the host kernel\u2019s own memory and security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Attacker-controlled req_len/resp_len cause kmemdup() to read far past the 2048-byte extra_buf into adjacent slab, and that data is published to userspace via nl80211 connect/roam netlink multicast\u2014an unbounded kernel heap disclosure.\nI:N - The defect is a pure out-of-bounds read: kmemdup only uses the oversized length as a memcpy source into a freshly allocated buffer, with no out-of-bounds or attacker-controlled write into existing kernel objects.\nA:H - The KASAN report documents a kernel panic on the multi-megabyte OOB read, and even modest oversize past the slab object can oops/panic the connect worker, repeatable on each association."
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        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()\n\nFix a slab-out-of-bounds read that occurs in kmemdup() called from\nbrcmf_get_assoc_ies().\nThe bug could occur when assoc_info-\u003ereq_len, data from a URB provided\nby a USB device, is bigger than the size of buffer which is defined as\nWL_EXTRA_BUF_MAX.\n\nAdd the size check for req_len/resp_len of assoc_info.\n\nFound by a modified version of syzkaller.\n\n[   46.592467][    T7] ==================================================================\n[   46.594687][    T7] BUG: KASAN: slab-out-of-bounds in kmemdup+0x3e/0x50\n[   46.596572][    T7] Read of size 3014656 at addr ffff888019442000 by task kworker/0:1/7\n[   46.598575][    T7]\n[   46.599157][    T7] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G           O      5.14.0+ #145\n[   46.601333][    T7] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014\n[   46.604360][    T7] Workqueue: events brcmf_fweh_event_worker\n[   46.605943][    T7] Call Trace:\n[   46.606584][    T7]  dump_stack_lvl+0x8e/0xd1\n[   46.607446][    T7]  print_address_description.constprop.0.cold+0x93/0x334\n[   46.608610][    T7]  ? kmemdup+0x3e/0x50\n[   46.609341][    T7]  kasan_report.cold+0x79/0xd5\n[   46.610151][    T7]  ? kmemdup+0x3e/0x50\n[   46.610796][    T7]  kasan_check_range+0x14e/0x1b0\n[   46.611691][    T7]  memcpy+0x20/0x60\n[   46.612323][    T7]  kmemdup+0x3e/0x50\n[   46.612987][    T7]  brcmf_get_assoc_ies+0x967/0xf60\n[   46.613904][    T7]  ? brcmf_notify_vif_event+0x3d0/0x3d0\n[   46.614831][    T7]  ? lock_chain_count+0x20/0x20\n[   46.615683][    T7]  ? mark_lock.part.0+0xfc/0x2770\n[   46.616552][    T7]  ? lock_chain_count+0x20/0x20\n[   46.617409][    T7]  ? mark_lock.part.0+0xfc/0x2770\n[   46.618244][    T7]  ? lock_chain_count+0x20/0x20\n[   46.619024][    T7]  brcmf_bss_connect_done.constprop.0+0x241/0x2e0\n[   46.620019][    T7]  ? brcmf_parse_configure_security.isra.0+0x2a0/0x2a0\n[   46.620818][    T7]  ? __lock_acquire+0x181f/0x5790\n[   46.621462][    T7]  brcmf_notify_connect_status+0x448/0x1950\n[   46.622134][    T7]  ? rcu_read_lock_bh_held+0xb0/0xb0\n[   46.622736][    T7]  ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0\n[   46.623390][    T7]  ? find_held_lock+0x2d/0x110\n[   46.623962][    T7]  ? brcmf_fweh_event_worker+0x19f/0xc60\n[   46.624603][    T7]  ? mark_held_locks+0x9f/0xe0\n[   46.625145][    T7]  ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0\n[   46.625871][    T7]  ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0\n[   46.626545][    T7]  brcmf_fweh_call_event_handler.isra.0+0x90/0x100\n[   46.627338][    T7]  brcmf_fweh_event_worker+0x557/0xc60\n[   46.627962][    T7]  ? brcmf_fweh_call_event_handler.isra.0+0x100/0x100\n[   46.628736][    T7]  ? rcu_read_lock_sched_held+0xa1/0xd0\n[   46.629396][    T7]  ? rcu_read_lock_bh_held+0xb0/0xb0\n[   46.629970][    T7]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n[   46.630649][    T7]  process_one_work+0x92b/0x1460\n[   46.631205][    T7]  ? pwq_dec_nr_in_flight+0x330/0x330\n[   46.631821][    T7]  ? rwlock_bug.part.0+0x90/0x90\n[   46.632347][    T7]  worker_thread+0x95/0xe00\n[   46.632832][    T7]  ? __kthread_parkme+0x115/0x1e0\n[   46.633393][    T7]  ? process_one_work+0x1460/0x1460\n[   46.633957][    T7]  kthread+0x3a1/0x480\n[   46.634369][    T7]  ? set_kthread_struct+0x120/0x120\n[   46.634933][    T7]  ret_from_fork+0x1f/0x30\n[   46.635431][    T7]\n[   46.635687][    T7] Allocated by task 7:\n[   46.636151][    T7]  kasan_save_stack+0x1b/0x40\n[   46.636628][    T7]  __kasan_kmalloc+0x7c/0x90\n[   46.637108][    T7]  kmem_cache_alloc_trace+0x19e/0x330\n[   46.637696][    T7]  brcmf_cfg80211_attach+0x4a0/0x4040\n[   46.638275][    T7]  brcmf_attach+0x389/0xd40\n[   46.638739][    T7]  brcmf_usb_probe+0x12de/0x1690\n[   46.639279][    T7]  usb_probe_interface+0x2aa/0x760\n[   46.639820][    T7]  really_probe+0x205/0xb70\n[   46.640342][    T7]  __driver_probe_device+0\n---truncated---"
          }
        ],
        "id": "CVE-2023-53213",
        "lastModified": "2026-08-04T10:18:57.867",
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            "url": "https://git.kernel.org/stable/c/e29661611e6e71027159a3140e818ef3b99f32dd"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-21T18:52:08+00:00",
      "cve": "CVE-2023-53213",
      "id": "CVE-2023-53213",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "778",
      "product_status:known_affected": "152",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53213.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:09:01Z",
      "cve": "CVE-2023-53213",
      "id": "CVE-2023-53213",
      "initial_release_date": "2025-09-15T23:27:36Z",
      "product_status:known_not_affected": "290",
      "product_status:recommended": "321",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53213",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53213.json",
      "version": "28"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 7.1,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-53213",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-01-14T17:48:48.083360Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-125",
                    "description": "CWE-125 Out-of-bounds Read",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-01-14T17:48:43.792Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "ac5305e5d227b9af3aae25fa83380d3ff0225b73",
                  "status": "affected",
                  "version": "cf2b448852abd47cee21007b8313fbf962bf3c9a",
                  "versionType": "git"
                },
                {
                  "lessThan": "39f9bd880abac6068bedb24a4e16e7bd26bf92da",
                  "status": "affected",
                  "version": "cf2b448852abd47cee21007b8313fbf962bf3c9a",
                  "versionType": "git"
                },
                {
                  "lessThan": "425eea395f1f5ae349fb55f7fe51d833a5324bfe",
                  "status": "affected",
                  "version": "cf2b448852abd47cee21007b8313fbf962bf3c9a",
                  "versionType": "git"
                },
                {
                  "lessThan": "549825602e3e6449927ca1ea1a08fd89868439df",
                  "status": "affected",
                  "version": "cf2b448852abd47cee21007b8313fbf962bf3c9a",
                  "versionType": "git"
                },
                {
                  "lessThan": "936a23293bbb3332bdf4cdb9c1496e80cb0bc2c8",
                  "status": "affected",
                  "version": "cf2b448852abd47cee21007b8313fbf962bf3c9a",
                  "versionType": "git"
                },
                {
                  "lessThan": "e29661611e6e71027159a3140e818ef3b99f32dd",
                  "status": "affected",
                  "version": "cf2b448852abd47cee21007b8313fbf962bf3c9a",
                  "versionType": "git"
                },
                {
                  "lessThan": "228186629ea970cc78b7d7d5f593f2d32fddf9f6",
                  "status": "affected",
                  "version": "cf2b448852abd47cee21007b8313fbf962bf3c9a",
                  "versionType": "git"
                },
                {
                  "lessThan": "21bee3e649d87f78fe8aef6ae02edd3d6f310fd0",
                  "status": "affected",
                  "version": "cf2b448852abd47cee21007b8313fbf962bf3c9a",
                  "versionType": "git"
                },
                {
                  "lessThan": "0da40e018fd034d87c9460123fa7f897b69fdee7",
                  "status": "affected",
                  "version": "cf2b448852abd47cee21007b8313fbf962bf3c9a",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "2.6.37"
                },
                {
                  "lessThan": "2.6.37",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.14.*",
                  "status": "unaffected",
                  "version": "4.14.315",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.283",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.243",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.180",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.110",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.27",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.2.*",
                  "status": "unaffected",
                  "version": "6.2.14",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.3.*",
                  "status": "unaffected",
                  "version": "6.3.1",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.4",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.14.315",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.19.283",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.243",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.180",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.110",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.27",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.2.14",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.3.1",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.4",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()\n\nFix a slab-out-of-bounds read that occurs in kmemdup() called from\nbrcmf_get_assoc_ies().\nThe bug could occur when assoc_info-\u003ereq_len, data from a URB provided\nby a USB device, is bigger than the size of buffer which is defined as\nWL_EXTRA_BUF_MAX.\n\nAdd the size check for req_len/resp_len of assoc_info.\n\nFound by a modified version of syzkaller.\n\n[   46.592467][    T7] ==================================================================\n[   46.594687][    T7] BUG: KASAN: slab-out-of-bounds in kmemdup+0x3e/0x50\n[   46.596572][    T7] Read of size 3014656 at addr ffff888019442000 by task kworker/0:1/7\n[   46.598575][    T7]\n[   46.599157][    T7] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G           O      5.14.0+ #145\n[   46.601333][    T7] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014\n[   46.604360][    T7] Workqueue: events brcmf_fweh_event_worker\n[   46.605943][    T7] Call Trace:\n[   46.606584][    T7]  dump_stack_lvl+0x8e/0xd1\n[   46.607446][    T7]  print_address_description.constprop.0.cold+0x93/0x334\n[   46.608610][    T7]  ? kmemdup+0x3e/0x50\n[   46.609341][    T7]  kasan_report.cold+0x79/0xd5\n[   46.610151][    T7]  ? kmemdup+0x3e/0x50\n[   46.610796][    T7]  kasan_check_range+0x14e/0x1b0\n[   46.611691][    T7]  memcpy+0x20/0x60\n[   46.612323][    T7]  kmemdup+0x3e/0x50\n[   46.612987][    T7]  brcmf_get_assoc_ies+0x967/0xf60\n[   46.613904][    T7]  ? brcmf_notify_vif_event+0x3d0/0x3d0\n[   46.614831][    T7]  ? lock_chain_count+0x20/0x20\n[   46.615683][    T7]  ? mark_lock.part.0+0xfc/0x2770\n[   46.616552][    T7]  ? lock_chain_count+0x20/0x20\n[   46.617409][    T7]  ? mark_lock.part.0+0xfc/0x2770\n[   46.618244][    T7]  ? lock_chain_count+0x20/0x20\n[   46.619024][    T7]  brcmf_bss_connect_done.constprop.0+0x241/0x2e0\n[   46.620019][    T7]  ? brcmf_parse_configure_security.isra.0+0x2a0/0x2a0\n[   46.620818][    T7]  ? __lock_acquire+0x181f/0x5790\n[   46.621462][    T7]  brcmf_notify_connect_status+0x448/0x1950\n[   46.622134][    T7]  ? rcu_read_lock_bh_held+0xb0/0xb0\n[   46.622736][    T7]  ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0\n[   46.623390][    T7]  ? find_held_lock+0x2d/0x110\n[   46.623962][    T7]  ? brcmf_fweh_event_worker+0x19f/0xc60\n[   46.624603][    T7]  ? mark_held_locks+0x9f/0xe0\n[   46.625145][    T7]  ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0\n[   46.625871][    T7]  ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0\n[   46.626545][    T7]  brcmf_fweh_call_event_handler.isra.0+0x90/0x100\n[   46.627338][    T7]  brcmf_fweh_event_worker+0x557/0xc60\n[   46.627962][    T7]  ? brcmf_fweh_call_event_handler.isra.0+0x100/0x100\n[   46.628736][    T7]  ? rcu_read_lock_sched_held+0xa1/0xd0\n[   46.629396][    T7]  ? rcu_read_lock_bh_held+0xb0/0xb0\n[   46.629970][    T7]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n[   46.630649][    T7]  process_one_work+0x92b/0x1460\n[   46.631205][    T7]  ? pwq_dec_nr_in_flight+0x330/0x330\n[   46.631821][    T7]  ? rwlock_bug.part.0+0x90/0x90\n[   46.632347][    T7]  worker_thread+0x95/0xe00\n[   46.632832][    T7]  ? __kthread_parkme+0x115/0x1e0\n[   46.633393][    T7]  ? process_one_work+0x1460/0x1460\n[   46.633957][    T7]  kthread+0x3a1/0x480\n[   46.634369][    T7]  ? set_kthread_struct+0x120/0x120\n[   46.634933][    T7]  ret_from_fork+0x1f/0x30\n[   46.635431][    T7]\n[   46.635687][    T7] Allocated by task 7:\n[   46.636151][    T7]  kasan_save_stack+0x1b/0x40\n[   46.636628][    T7]  __kasan_kmalloc+0x7c/0x90\n[   46.637108][    T7]  kmem_cache_alloc_trace+0x19e/0x330\n[   46.637696][    T7]  brcmf_cfg80211_attach+0x4a0/0x4040\n[   46.638275][    T7]  brcmf_attach+0x389/0xd40\n[   46.638739][    T7]  brcmf_usb_probe+0x12de/0x1690\n[   46.639279][    T7]  usb_probe_interface+0x2aa/0x760\n[   46.639820][    T7]  really_probe+0x205/0xb70\n[   46.640342][    T7]  __driver_probe_device+0\n---truncated---"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-01-05T10:18:43.295Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/ac5305e5d227b9af3aae25fa83380d3ff0225b73"
            },
            {
              "url": "https://git.kernel.org/stable/c/39f9bd880abac6068bedb24a4e16e7bd26bf92da"
            },
            {
              "url": "https://git.kernel.org/stable/c/425eea395f1f5ae349fb55f7fe51d833a5324bfe"
            },
            {
              "url": "https://git.kernel.org/stable/c/549825602e3e6449927ca1ea1a08fd89868439df"
            },
            {
              "url": "https://git.kernel.org/stable/c/936a23293bbb3332bdf4cdb9c1496e80cb0bc2c8"
            },
            {
              "url": "https://git.kernel.org/stable/c/e29661611e6e71027159a3140e818ef3b99f32dd"
            },
            {
              "url": "https://git.kernel.org/stable/c/228186629ea970cc78b7d7d5f593f2d32fddf9f6"
            },
            {
              "url": "https://git.kernel.org/stable/c/21bee3e649d87f78fe8aef6ae02edd3d6f310fd0"
            },
            {
              "url": "https://git.kernel.org/stable/c/0da40e018fd034d87c9460123fa7f897b69fdee7"
            }
          ],
          "title": "wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2023-53213",
        "datePublished": "2025-09-15T14:21:41.433Z",
        "dateReserved": "2025-09-15T14:19:21.844Z",
        "dateUpdated": "2026-01-14T17:52:57.288Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.