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
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Oct 24, 2025 | Oct 24, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 22, 2025 |
| Ubuntu | — | Upgrade linux-intel-iotgUpgrade linux-lowlatency-hwe-5.15Upgrade linux-raspiUpgrade linux-nvidia-tegra-5.15Upgrade linux-awsUpgrade linux-hwe-5.15Upgrade linux-riscv-5.15Upgrade linux-gcpUpgrade linux-kvmUpgrade linux-intel-iotg-5.15Upgrade linux-azureUpgrade linux-intel-iot-realtimeUpgrade linux-gcp-5.15Upgrade linux-azure-fdeUpgrade linux-aws-5.15Upgrade linux-bluefieldUpgrade linux-realtimeUpgrade linux-oracle-5.15Upgrade linux-nvidiaUpgrade linux-gkeopUpgrade linuxUpgrade linux-gkeUpgrade linux-oracleUpgrade linux-ibmUpgrade linux-lowlatencyUpgrade linux-azure-5.15 | Oct 28, 2025 | Oct 24, 2025 |
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