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🛡️ CVE-2023-53086 — kernel

🟠 CVSS 8.8 — High ✅ No Known Exploit NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

wifi: mt76: connac: do not check WED status for non-mmio devices

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---

How this vulnerability can be exploited

This issue can be reached from an adjacent network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Adjacent network — the attacker has to sit on the same local or logical network.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

CVE-2023-53086 is recorded against 2 packages.

  • kernel (from 6.2.0 up to 6.2.9)
  • linux-kernel

Timeline and source

Published on 2 May 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2023-53086 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-05-02
Updated 2026-08-20
Modified 2026-08-12

Affected Packages

Software From version Fixed in
kernel 6.2.0 6.2.9
linux-kernel — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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