Local service interruption via provider-first device teardown
Published Jul 12, 2024 · Updated May 11, 2026
Improper device teardown in affected Linux kernels allows local users to interrupt service by removing the x86 Android tablet driver. The x86_android_tablet_remove() path unregisters I2C regulator providers before their consumers, leaving referenced devices active and triggering a regulator-core WARN(). The condition is tied to driver teardown on Lenovo Yoga Tablet 2 1380 hardware, where the bq24190 provider and lc824206xa consumer are I2C devices.
Summary
What happened
Improper device teardown in affected Linux kernels allows local users to interrupt service by removing the x86 Android tablet driver. The x86_android_tablet_remove() path unregisters I2C regulator providers before their consumers, leaving referenced devices active and triggering a regulator-core WARN(). The condition is tied to driver teardown on Lenovo Yoga Tablet 2 1380 hardware, where the bq24190 provider and lc824206xa consumer are I2C devices.
The record
- CVE
- CVE-2024-40975
- Published
- Jul 12, 2024
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 12, 2024CVE publishedPublication date reported by the CVE source.
- May 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=5.17
- Affected versionversion=55fa3c9665bfcf32b21af8ecdeb48d5c5177d8d7 <36ff963c133a25ed1166a25c3ba8b357ea010fda
- Affected versionversion=55fa3c9665bfcf32b21af8ecdeb48d5c5177d8d7 <3de0f2627ef849735f155c1818247f58404dddfe
- Affected versionversion=55fa3c9665bfcf32b21af8ecdeb48d5c5177d8d7 <f0c982853d665597d17e4995ff479fbbf79a9cf6
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
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Public exploit references
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Technologies
Your stack
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Your stack
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