Kernel memory corruption via hot-join teardown race
Published Feb 27, 2025 · Updated Aug 5, 2026
Use-after-free in the Linux kernel's DesignWare I3C master driver allows local users to corrupt kernel memory during driver teardown. dw_i3c_common_remove unregisters and frees master->base without canceling pending hj_work, allowing dw_i3c_hj_work to pass the freed object to i3c_master_do_daa. Exploitation requires local low-privileged access and a hot-join interrupt to race with driver removal; resulting compromise is confined to the host kernel.
Summary
What happened
Use-after-free in the Linux kernel's DesignWare I3C master driver allows local users to corrupt kernel memory during driver teardown. dw_i3c_common_remove unregisters and frees master->base without canceling pending hj_work, allowing dw_i3c_hj_work to pass the freed object to i3c_master_do_daa. Exploitation requires local low-privileged access and a hot-join interrupt to race with driver removal; resulting compromise is confined to the host kernel.
The record
- CVE
- CVE-2024-57984
- Published
- Feb 27, 2025
- Updated
- Aug 5, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-416, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 27, 2025CVE publishedPublication date reported by the CVE source.
- Aug 5, 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=1dd728f5d4d4b8b53196c1e0fcf86bbaaee39cef <60d2fb033a999bb644f8e8606ff4a1b82de36c6f
- Affected versionversion=1dd728f5d4d4b8b53196c1e0fcf86bbaaee39cef <9b0063098fcde17cd2894f2c96459b23388507ca
- Affected versionversion=1dd728f5d4d4b8b53196c1e0fcf86bbaaee39cef <b75439c945b94dd8a2b645355bdb56f948052601
- Affected versionversion=1dd728f5d4d4b8b53196c1e0fcf86bbaaee39cef <fc84dd3c909a372c0d130f5f84c404717c17eed8
- Affected versionversion=5.0
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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