CVE-2025-68330

iio: accel: bmc150: Fix irq assumption regression

State: Published
Severity: Not scored
Published: Dec 22, 2025
Updated: May 11, 2026
Reserved: Dec 16, 2025

Description

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

iio: accel: bmc150: Fix irq assumption regression

The code in bmc150-accel-core.c unconditionally calls bmc150_accel_set_interrupt() in the iio_buffer_setup_ops, such as on the runtime PM resume path giving a kernel splat like this if the device has no interrupts:

Unable to handle kernel NULL pointer dereference at virtual address 00000001 when read

PC is at bmc150_accel_set_interrupt+0x98/0x194 LR is at __pm_runtime_resume+0x5c/0x64 (...) Call trace: bmc150_accel_set_interrupt from bmc150_accel_buffer_postenable+0x40/0x108 bmc150_accel_buffer_postenable from __iio_update_buffers+0xbe0/0xcbc __iio_update_buffers from enable_store+0x84/0xc8 enable_store from kernfs_fop_write_iter+0x154/0x1b4

This bug seems to have been in the driver since the beginning, but it only manifests recently, I do not know why.

Store the IRQ number in the state struct, as this is a common pattern in other drivers, then use this to determine if we have IRQ support or not.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	c16bff4844ffa678ba0c9d077e9797506924ccdd to before aad9d048a3211c48ec02efa405bf462856feb862Affected c16bff4844ffa678ba0c9d077e9797506924ccdd to before c891f504bb66604c822e7985e093cf39b97fdeb0Affected c16bff4844ffa678ba0c9d077e9797506924ccdd to before cdd4a9e98004bd7c7488311951fa6dbae38b2b80Affected c16bff4844ffa678ba0c9d077e9797506924ccdd to before 65ad4ed983fd9ee0259d86391d6a53f78203918cAffected c16bff4844ffa678ba0c9d077e9797506924ccdd to before 93eaa5ddc5fc4f50ac396afad8ce261102ebd4f3Affected c16bff4844ffa678ba0c9d077e9797506924ccdd to before 3aa385a9c75c09b59dcab2ff76423439d23673abAffected
LinuxLinux	4.2Affected before 4.2Not affected 5.15.197 through 5.15.Not affected 6.1.159 through 6.1.Not affected 6.6.119 through 6.6.Not affected 6.12.61 through 6.12.Not affected 6.17.11 through 6.17.*Not affected 6.18 and laterNot affected

Product

Versions

LinuxLinux

c16bff4844ffa678ba0c9d077e9797506924ccdd to before aad9d048a3211c48ec02efa405bf462856feb862Affected
c16bff4844ffa678ba0c9d077e9797506924ccdd to before c891f504bb66604c822e7985e093cf39b97fdeb0Affected
c16bff4844ffa678ba0c9d077e9797506924ccdd to before cdd4a9e98004bd7c7488311951fa6dbae38b2b80Affected
c16bff4844ffa678ba0c9d077e9797506924ccdd to before 65ad4ed983fd9ee0259d86391d6a53f78203918cAffected
c16bff4844ffa678ba0c9d077e9797506924ccdd to before 93eaa5ddc5fc4f50ac396afad8ce261102ebd4f3Affected
c16bff4844ffa678ba0c9d077e9797506924ccdd to before 3aa385a9c75c09b59dcab2ff76423439d23673abAffected

LinuxLinux

4.2Affected
before 4.2Not affected
5.15.197 through 5.15.*Not affected
6.1.159 through 6.1.*Not affected
6.6.119 through 6.6.*Not affected
6.12.61 through 6.12.*Not affected
6.17.11 through 6.17.*Not affected
6.18 and laterNot affected

References

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