Riskcovery

CVE-2025-38485

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

State
Published
Severity
7.8 High
Published
Jul 28, 2025
Updated
Aug 5, 2026
Reserved
Apr 16, 2025

Read the record on cve.org

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

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 79e3a5bdd9efbdf4e1069793d7735b432d641e7c to before 6ecd61c201b27ad2760b3975437ad2b97d725b98Affected
  • 79e3a5bdd9efbdf4e1069793d7735b432d641e7c to before dda42f23a8f5439eaac9521ce0531547d880cc54Affected
  • 79e3a5bdd9efbdf4e1069793d7735b432d641e7c to before bfcda3e1015791b3a63fb4d3aad408da9cf76e8fAffected
  • 79e3a5bdd9efbdf4e1069793d7735b432d641e7c to before 1803d372460aaa9ae0188a30c9421d3f157f2f04Affected
  • 79e3a5bdd9efbdf4e1069793d7735b432d641e7c to before 1fe16dc1a2f5057772e5391ec042ed7442966c9aAffected
LinuxLinux
  • 5.14Affected
  • before 5.14Not affected
  • 6.1.147 through 6.1.*Not affected
  • 6.6.100 through 6.6.*Not affected
  • 6.12.40 through 6.12.*Not affected
  • 6.15.8 through 6.15.*Not affected
  • 6.16 and laterNot affected

References

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