fix the global-out-of-bounds in update_pdata #353
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the patch is to fix the below issue: BUG: KASAN: global-out-of-bounds in update_pdata+0x80b/0xcc0 [ipu6_acpi_pdata] Write of size 8 at addr ffffffffc09bace8 by task (udev-worker)/235 Call Trace: <TASK> dump_stack_lvl+0x36/0x80 print_report+0xcf/0x640 ? kasan_unpoison+0x44/0x80 ? lock_acquire.part.0.isra.0+0x41/0xc0 ? update_pdata+0x80b/0xcc0 [ipu6_acpi_pdata] kasan_report+0xb7/0x100 ? update_pdata+0x80b/0xcc0 [ipu6_acpi_pdata] update_pdata+0x80b/0xcc0 [ipu6_acpi_pdata] get_sensor_pdata+0x2dd/0x940 [ipu6_acpi_pdata] ? __pfx_get_sensor_pdata+0x40/0x40 [ipu6_acpi_pdata] ipu_acpi_test+0x2c4/0x400 [ipu6_acpi] ? __pfx_get_sensor_pdata+0x40/0x40 [ipu6_acpi_pdata] ? __pfx_ipu_acpi_test+0x40/0x40 [ipu6_acpi] bus_for_each_dev+0xcf/0x140 ? __pfx_bus_for_each_dev+0x40/0x40 ? do_raw_spin_unlock+0xa6/0x140 ? __pfx_isys_init_acpi_add_device+0x40/0x40 [intel_ipu6] ipu_get_acpi_devices+0x52/0x100 [ipu6_acpi] ipu_pci_probe+0x106d/0x1400 [intel_ipu6] ? __pfx_lock_release+0x40/0x40 ? __pfx_ipu_pci_probe+0x40/0x40 [intel_ipu6] ? lock_acquire.part.0.isra.0+0x80/0xc0 ? do_raw_spin_unlock+0xa6/0x140 ? _raw_spin_unlock_irqrestore+0x22/0x80 pci_device_probe+0xf8/0x240 really_probe+0x276/0x5c0 Signed-off-by: Bo He <[email protected]>
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BUG: KASAN: global-out-of-bounds in update_pdata+0x80b/0xcc0 [ipu6_acpi_pdata]
Write of size 8 at addr ffffffffc09bace8 by task (udev-worker)/235