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🛡️ CVE-2023-53764 — kernel

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

Description

wifi: ath12k: Handle lock during peer_id find

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath12k: Handle lock during peer_id find

ath12k_peer_find_by_id() requires that the caller hold the

ab->base_lock. Currently the WBM error path does not hold

the lock and calling that function, leads to the

following lockdep_assert()in QCN9274:

[105162.160893] ------------[ cut here ]------------

[105162.160916] WARNING: CPU: 3 PID: 0 at drivers/net/wireless/ath/ath12k/peer.c:71 ath12k_peer_find_by_id+0x52/0x60 [ath12k]

[105162.160933] Modules linked in: ath12k(O) qrtr_mhi qrtr mac80211 cfg80211 mhi qmi_helpers libarc4 nvme nvme_core [last unloaded: ath12k(O)]

[105162.160967] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G W O 6.1.0-rc2+ #3

[105162.160972] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0056.2019.0506.1527 05/06/2019

[105162.160977] RIP: 0010:ath12k_peer_find_by_id+0x52/0x60 [ath12k]

[105162.160990] Code: 07 eb 0f 39 68 24 74 0a 48 8b 00 48 39 f8 75 f3 31 c0 5b 5d c3 48 8d bf b0 f2 00 00 be ff ff ff ff e8 22 20 c4 e2 85 c0 75 bf <0f> 0b eb bb 66 2e 0f 1f 84 00 00 00 00 00 41 54 4c 8d a7 98 f2 00

[105162.160996] RSP: 0018:ffffa223001acc60 EFLAGS: 00010246

[105162.161003] RAX: 0000000000000000 RBX: ffff9f0573940000 RCX: 0000000000000000

[105162.161008] RDX: 0000000000000001 RSI: ffffffffa3951c8e RDI: ffffffffa39a96d7

[105162.161013] RBP: 000000000000000a R08: 0000000000000000 R09: 0000000000000000

[105162.161017] R10: ffffa223001acb40 R11: ffffffffa3d57c60 R12: ffff9f057394f2e0

[105162.161022] R13: ffff9f0573940000 R14: ffff9f04ecd659c0 R15: ffff9f04d5a9b040

[105162.161026] FS: 0000000000000000(0000) GS:ffff9f0575600000(0000) knlGS:0000000000000000

[105162.161031] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

[105162.161036] CR2: 00001d5c8277a008 CR3: 00000001e6224006 CR4: 00000000003706e0

[105162.161041] Call Trace:

[105162.161046] <IRQ>

[105162.161051] ath12k_dp_rx_process_wbm_err+0x6da/0xaf0 [ath12k]

[105162.161072] ? ath12k_dp_rx_process_err+0x80e/0x15a0 [ath12k]

[105162.161084] ? __lock_acquire+0x4ca/0x1a60

[105162.161104] ath12k_dp_service_srng+0x263/0x310 [ath12k]

[105162.161120] ath12k_pci_ext_grp_napi_poll+0x1c/0x70 [ath12k]

[105162.161133] __napi_poll+0x22/0x260

[105162.161141] net_rx_action+0x2f8/0x380

[105162.161153] __do_softirq+0xd0/0x4c9

[105162.161162] irq_exit_rcu+0x88/0xe0

[105162.161169] common_interrupt+0xa5/0xc0

[105162.161174] </IRQ>

[105162.161179] <TASK>

[105162.161184] asm_common_interrupt+0x22/0x40

Handle spin lock/unlock in WBM error path to hold the necessary lock

expected by ath12k_peer_find_by_id().

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0-03171-QCAHKSWPL_SILICONZ-1

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-2023-53764 is recorded against 2 packages.

  • kernel (from 6.3.0 up to 6.3.4)
  • unknown

Timeline and source

Published on 8 December 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. 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:

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 2025-12-08
Updated 2026-08-20
Modified 2026-08-12
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel 6.3.0 6.3.4
unknown — —

Similar Threats

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