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CVE-2023-53086— wifi: mt76: connac: do not check WED status for non-mmio devices

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于mt76驱动为非mmio设备检查WED状态导致崩溃。

CVSS 8.8 · High EPSS 0.21% · P10

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux d1369e515efe6b5d04e9a5f5884106643f7b1d8a< 53edfda851dd1ce41ac049ce2f195dc41dd27cc1 affected
d1369e515efe6b5d04e9a5f5884106643f7b1d8a< 5683e1488aa9b0805a9403d215e48fed29d6d923 affected
6.2 affected
< 6.2 unaffected
6.2.9≤ 6.2.* unaffected
6.3≤ * unaffected
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I. Basic Information for CVE-2023-53086

Vulnerability Information
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Vulnerability Title
wifi: mt76: connac: do not check WED status for non-mmio devices
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: connac: do not check WED status for non-mmio devices WED is supported just for mmio devices, so do not check it for usb or sdio devices. This patch fixes the crash reported below: [ 21.946627] wlp0s3u1i3: authenticate with c4:41:1e:f5:2b:1d [ 22.525298] wlp0s3u1i3: send auth to c4:41:1e:f5:2b:1d (try 1/3) [ 22.548274] wlp0s3u1i3: authenticate with c4:41:1e:f5:2b:1d [ 22.557694] wlp0s3u1i3: send auth to c4:41:1e:f5:2b:1d (try 1/3) [ 22.565885] wlp0s3u1i3: authenticated [ 22.569502] wlp0s3u1i3: associate with c4:41:1e:f5:2b:1d (try 1/3) [ 22.578966] wlp0s3u1i3: RX AssocResp from c4:41:1e:f5:2b:1d (capab=0x11 status=30 aid=3) [ 22.579113] wlp0s3u1i3: c4:41:1e:f5:2b:1d rejected association temporarily; comeback duration 1000 TU (1024 ms) [ 23.649518] wlp0s3u1i3: associate with c4:41:1e:f5:2b:1d (try 2/3) [ 23.752528] wlp0s3u1i3: RX AssocResp from c4:41:1e:f5:2b:1d (capab=0x11 status=0 aid=3) [ 23.797450] wlp0s3u1i3: associated [ 24.959527] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) [ 24.959640] BUG: unable to handle page fault for address: ffff88800c223200 [ 24.959706] #PF: supervisor instruction fetch in kernel mode [ 24.959788] #PF: error_code(0x0011) - permissions violation [ 24.959846] PGD 2c01067 P4D 2c01067 PUD 2c02067 PMD c2a8063 PTE 800000000c223163 [ 24.959957] Oops: 0011 [#1] PREEMPT SMP [ 24.960009] CPU: 0 PID: 391 Comm: wpa_supplicant Not tainted 6.2.0-kvm #18 [ 24.960089] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.1-2.fc37 04/01/2014 [ 24.960191] RIP: 0010:0xffff88800c223200 [ 24.960446] RSP: 0018:ffffc90000ff7698 EFLAGS: 00010282 [ 24.960513] RAX: ffff888028397010 RBX: ffff88800c26e630 RCX: 0000000000000058 [ 24.960598] RDX: ffff88800c26f844 RSI: 0000000000000006 RDI: ffff888028397010 [ 24.960682] RBP: ffff88800ea72f00 R08: 18b873fbab2b964c R09: be06b38235f3c63c [ 24.960766] R10: 18b873fbab2b964c R11: be06b38235f3c63c R12: 0000000000000001 [ 24.960853] R13: ffff88800c26f84c R14: ffff8880063f0ff8 R15: ffff88800c26e644 [ 24.960950] FS: 00007effcea327c0(0000) GS:ffff88807dc00000(0000) knlGS:0000000000000000 [ 24.961036] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.961106] CR2: ffff88800c223200 CR3: 000000000eaa2000 CR4: 00000000000006b0 [ 24.961190] Call Trace: [ 24.961219] <TASK> [ 24.961245] ? mt76_connac_mcu_add_key+0x2cf/0x310 [ 24.961313] ? mt7921_set_key+0x150/0x200 [ 24.961365] ? drv_set_key+0xa9/0x1b0 [ 24.961418] ? ieee80211_key_enable_hw_accel+0xd9/0x240 [ 24.961485] ? ieee80211_key_replace+0x3f3/0x730 [ 24.961541] ? crypto_shash_setkey+0x89/0xd0 [ 24.961597] ? ieee80211_key_link+0x2d7/0x3a0 [ 24.961664] ? crypto_aead_setauthsize+0x31/0x50 [ 24.961730] ? sta_info_hash_lookup+0xa6/0xf0 [ 24.961785] ? ieee80211_add_key+0x1fc/0x250 [ 24.961842] ? rdev_add_key+0x41/0x140 [ 24.961882] ? nl80211_parse_key+0x6c/0x2f0 [ 24.961940] ? nl80211_new_key+0x24a/0x290 [ 24.961984] ? genl_rcv_msg+0x36c/0x3a0 [ 24.962036] ? rdev_mod_link_station+0xe0/0xe0 [ 24.962102] ? nl80211_set_key+0x410/0x410 [ 24.962143] ? nl80211_pre_doit+0x200/0x200 [ 24.962187] ? genl_bind+0xc0/0xc0 [ 24.962217] ? netlink_rcv_skb+0xaa/0xd0 [ 24.962259] ? genl_rcv+0x24/0x40 [ 24.962300] ? netlink_unicast+0x224/0x2f0 [ 24.962345] ? netlink_sendmsg+0x30b/0x3d0 [ 24.962388] ? ____sys_sendmsg+0x109/0x1b0 [ 24.962388] ? ____sys_sendmsg+0x109/0x1b0 [ 24.962440] ? __import_iovec+0x2e/0x110 [ 24.962482] ? ___sys_sendmsg+0xbe/0xe0 [ 24.962525] ? mod_objcg_state+0x25c/0x330 [ 24.962576] ? __dentry_kill+0x19e/0x1d0 [ 24.962618] ? call_rcu+0x18f/0x270 [ 24.962660] ? __dentry_kill+0x19e/0x1d0 [ 24.962702] ? __x64_sys_sendmsg+0x70/0x90 [ 24.962744] ? do_syscall_64+0x3d/0x80 [ 24.962796] ? exit_to_user_mode_prepare+0x1b/0x70 [ 24.962852] ? entry_SYSCA ---truncated---
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于mt76驱动为非mmio设备检查WED状态导致崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux d1369e515efe6b5d04e9a5f5884106643f7b1d8a ~ 53edfda851dd1ce41ac049ce2f195dc41dd27cc1 -
Linux Linux 6.2 -

II. Public POCs for CVE-2023-53086

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III. Intelligence Information for CVE-2023-53086

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Patches & Fixes for CVE-2023-53086 (2)

Same Patch Batch · Linux · 2025-05-02 · 107 CVEs total

CVE-2023-53116 9.8 CRITICAL nvmet: avoid potential UAF in nvmet_req_complete()
CVE-2023-53083 9.8 CRITICAL nfsd: don't replace page in rq_pages if it's a continuation of last page
CVE-2025-37798 7.8 HIGH codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()
CVE-2023-53138 7.8 HIGH net: caif: Fix use-after-free in cfusbl_device_notify()
CVE-2023-53111 7.8 HIGH loop: Fix use-after-free issues
CVE-2023-53107 7.8 HIGH veth: Fix use after free in XDP_REDIRECT
CVE-2023-53102 7.8 HIGH ice: xsk: disable txq irq before flushing hw
CVE-2023-53100 7.8 HIGH ext4: fix WARNING in ext4_update_inline_data
CVE-2023-53094 7.8 HIGH tty: serial: fsl_lpuart: fix race on RX DMA shutdown
CVE-2023-53090 7.8 HIGH drm/amdkfd: Fix an illegal memory access
CVE-2023-53088 7.8 HIGH mptcp: fix UaF in listener shutdown
CVE-2023-53087 7.8 HIGH drm/i915/active: Fix misuse of non-idle barriers as fence trackers
CVE-2023-53084 7.8 HIGH drm/shmem-helper: Remove another errant put in error path
CVE-2023-53080 7.8 HIGH xsk: Add missing overflow check in xdp_umem_reg
CVE-2023-53072 7.8 HIGH mptcp: use the workqueue to destroy unaccepted sockets
CVE-2023-53065 7.8 HIGH perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output
CVE-2023-53057 7.8 HIGH Bluetooth: HCI: Fix global-out-of-bounds
CVE-2023-53052 7.8 HIGH cifs: fix use-after-free bug in refresh_cache_worker()
CVE-2023-53047 7.8 HIGH tee: amdtee: fix race condition in amdtee_open_session
CVE-2023-53039 7.8 HIGH HID: intel-ish-hid: ipc: Fix potential use-after-free in work function

Showing top 20 of 107 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53086

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