CVE-2025-38485 (GCVE-0-2025-38485)

Vulnerability from cvelistv5 – Published: 2025-07-28 11:21 – Updated: 2025-11-03 17:38
VLAI?
Title
iio: accel: fxls8962af: Fix use after free in fxls8962af_fifo_flush
Summary
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
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 79e3a5bdd9efbdf4e1069793d7735b432d641e7c , < 6ecd61c201b27ad2760b3975437ad2b97d725b98 (git)
Affected: 79e3a5bdd9efbdf4e1069793d7735b432d641e7c , < dda42f23a8f5439eaac9521ce0531547d880cc54 (git)
Affected: 79e3a5bdd9efbdf4e1069793d7735b432d641e7c , < bfcda3e1015791b3a63fb4d3aad408da9cf76e8f (git)
Affected: 79e3a5bdd9efbdf4e1069793d7735b432d641e7c , < 1803d372460aaa9ae0188a30c9421d3f157f2f04 (git)
Affected: 79e3a5bdd9efbdf4e1069793d7735b432d641e7c , < 1fe16dc1a2f5057772e5391ec042ed7442966c9a (git)
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    Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 6.1.147 , ≤ 6.1.* (semver)
Unaffected: 6.6.100 , ≤ 6.6.* (semver)
Unaffected: 6.12.40 , ≤ 6.12.* (semver)
Unaffected: 6.15.8 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: accel: fxls8962af: Fix use after free in fxls8962af_fifo_flush\n\nfxls8962af_fifo_flush() uses indio_dev-\u003eactive_scan_mask (with\niio_for_each_active_channel()) without making sure the indio_dev\nstays in buffer mode.\nThere is a race if indio_dev exits buffer mode in the middle of the\ninterrupt that flushes the fifo. Fix this by calling\nsynchronize_irq() to ensure that no interrupt is currently running when\ndisabling buffer mode.\n\nUnable to handle kernel NULL pointer dereference at virtual address 00000000 when read\n[...]\n_find_first_bit_le from fxls8962af_fifo_flush+0x17c/0x290\nfxls8962af_fifo_flush from fxls8962af_interrupt+0x80/0x178\nfxls8962af_interrupt from irq_thread_fn+0x1c/0x7c\nirq_thread_fn from irq_thread+0x110/0x1f4\nirq_thread from kthread+0xe0/0xfc\nkthread from ret_from_fork+0x14/0x2c"
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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