Kernel memory corruption via unsynchronized delayed-work cancellation
Published Sep 15, 2025 · Updated Sep 15, 2025
Use-after-free in the Linux kernel 6.0.11 through 6.0.15 and 6.1 through 6.1.1 allows local users to corrupt kernel memory. The sof_es8336_remove() path calls cancel_delayed_work(), which can return while a delayed callback is still running and leave that callback accessing driver state after teardown. Low-privileged local access and removal of the affected ASoC driver are required; successful exploitation can expose or alter kernel memory or crash the system.
Summary
What happened
Use-after-free in the Linux kernel 6.0.11 through 6.0.15 and 6.1 through 6.1.1 allows local users to corrupt kernel memory. The sof_es8336_remove() path calls cancel_delayed_work(), which can return while a delayed callback is still running and leave that callback accessing driver state after teardown. Low-privileged local access and removal of the affected ASoC driver are required; successful exploitation can expose or alter kernel memory or crash the system.
The record
- CVE
- CVE-2022-50305
- Published
- Sep 15, 2025
- Updated
- Sep 15, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-416, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 15, 2025CVE publishedPublication date reported by the CVE source.
- Sep 15, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=6.1
- Affected versionversion=89cdb224f2abe37ec4ac21ba0d9ddeb5a6a9cf68 <1b41beaa7a58467505ec3023af8aad74f878b888
- Affected versionversion=89cdb224f2abe37ec4ac21ba0d9ddeb5a6a9cf68 <390a1a98288a53b2e7555097d83c6e55d579b166
- Affected versionversion=b60ee210a76cabdc2dd5396de299a1860b4945cd <b85102a3aa3810a09eb55692e8cd6ffbb304e57d
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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