CVE-2025-38485

/// Technical description

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

iio: accel: fxls8962af: Fix use after free in fxls8962af_fifo_flush

fxls8962af_fifo_flush() uses indio_dev->active_scan_mask (with

iio_for_each_active_channel()) without making sure the indio_dev

stays in buffer mode.

There is a race if indio_dev exits buffer mode in the middle of the

interrupt that flushes the fifo. Fix this by calling

synchronize_irq() to ensure that no interrupt is currently running when

disabling buffer mode.

Unable to handle kernel NULL pointer dereference at virtual address 00000000 when read

[...]

_find_first_bit_le from fxls8962af_fifo_flush+0x17c/0x290

fxls8962af_fifo_flush from fxls8962af_interrupt+0x80/0x178

fxls8962af_interrupt from irq_thread_fn+0x1c/0x7c

irq_thread_fn from irq_thread+0x110/0x1f4

irq_thread from kthread+0xe0/0xfc

kthread from ret_from_fork+0x14/0x2c

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References