CVE-2025-68330 (GCVE-0-2025-68330)

Vulnerability from cvelistv5 – Published: 2025-12-22 16:12 – Updated: 2026-05-11 21:51
VLAI
Title
iio: accel: bmc150: Fix irq assumption regression
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c16bff4844ffa678ba0c9d077e9797506924ccdd , < aad9d048a3211c48ec02efa405bf462856feb862 (git)
Affected: c16bff4844ffa678ba0c9d077e9797506924ccdd , < c891f504bb66604c822e7985e093cf39b97fdeb0 (git)
Affected: c16bff4844ffa678ba0c9d077e9797506924ccdd , < cdd4a9e98004bd7c7488311951fa6dbae38b2b80 (git)
Affected: c16bff4844ffa678ba0c9d077e9797506924ccdd , < 65ad4ed983fd9ee0259d86391d6a53f78203918c (git)
Affected: c16bff4844ffa678ba0c9d077e9797506924ccdd , < 93eaa5ddc5fc4f50ac396afad8ce261102ebd4f3 (git)
Affected: c16bff4844ffa678ba0c9d077e9797506924ccdd , < 3aa385a9c75c09b59dcab2ff76423439d23673ab (git)
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Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 5.15.197 , ≤ 5.15.* (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.119 , ≤ 6.6.* (semver)
Unaffected: 6.12.61 , ≤ 6.12.* (semver)
Unaffected: 6.17.11 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/iio/accel/bmc150-accel-core.c",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: accel: bmc150: Fix irq assumption regression\n\nThe code in bmc150-accel-core.c unconditionally calls\nbmc150_accel_set_interrupt() in the iio_buffer_setup_ops,\nsuch as on the runtime PM resume path giving a kernel\nsplat like this if the device has no interrupts:\n\nUnable to handle kernel NULL pointer dereference at virtual\n  address 00000001 when read\n\nPC is at bmc150_accel_set_interrupt+0x98/0x194\nLR is at __pm_runtime_resume+0x5c/0x64\n(...)\nCall trace:\nbmc150_accel_set_interrupt from bmc150_accel_buffer_postenable+0x40/0x108\nbmc150_accel_buffer_postenable from __iio_update_buffers+0xbe0/0xcbc\n__iio_update_buffers from enable_store+0x84/0xc8\nenable_store from kernfs_fop_write_iter+0x154/0x1b4\n\nThis bug seems to have been in the driver since the beginning,\nbut it only manifests recently, I do not know why.\n\nStore the IRQ number in the state struct, as this is a common\npattern in other drivers, then use this to determine if we have\nIRQ support or not."
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • 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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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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