CVE-2023-53710 wifi: mt76: mt7921: fix error code of return in mt7921_acpi_read
A kernel NULL pointer dereference in the mt7921 Wi-Fi driver causes a system crash when the ACPI SAR table is malformed.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-53710?
CVE-2023-53710 is a vulnerability in Linux, published on 22 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7921: fix error code of return in mt7921_acpi_read
Kernel NULL pointer dereference when ACPI SAR table isn't implemented well. Fix the error code of return to mark the ACPI SAR table as invalid.
[ 5.077128] mt7921e 0000:06:00.0: sar cnt = 0 [ 5.077381] BUG: kernel NULL pointer dereference, address: 0000000000000004 [ 5.077630] #PF: supervisor read access in kernel mode [ 5.077883] #PF: error_code(0x0000) - not-present page [ 5.078138] PGD 0 P4D 0 [ 5.078398] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 5.079202] RIP: 0010:mt7921_init_acpi_sar+0x106/0x220 [mt7921_common] ... [ 5.080786] Call Trace: [ 5.080786] <TASK> [ 5.080786] mt7921_register_device+0x37d/0x490 [mt7921_common] [ 5.080786] mt7921_pci_probe.part.0+0x2ee/0x310 [mt7921e] [ 5.080786] mt7921_pci_probe+0x52/0x70 [mt7921e] [ 5.080786] local_pci_probe+0x47/0x90 [ 5.080786] pci_call_probe+0x55/0x190 [ 5.080786] pci_device_probe+0x84/0x120
Which versions are affected by CVE-2023-53710?
How do I fix CVE-2023-53710?
Apply the vendor's patch.
Is CVE-2023-53710 being exploited?
There is no known exploitation of CVE-2023-53710 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-53710, DEBIAN-CVE-2023-53710, GHSA-c635-jccq-5wqg, UBUNTU-CVE-2023-53710.