Use-after-free via unsafe hash iteration
Published Dec 24, 2025 · Updated Dec 24, 2025
Use-after-free in the Xilinx event manager in Linux allows attackers to cause an unspecified impact via unspecified vectors. The event-removal path in drivers/soc/xilinx/xlnx_event_manager.c frees eve_data inside hash_for_each_possible(), whose next iteration dereferences that freed entry. Reachability requires the Xilinx event-manager code and an event-removal operation; the Linux CNA has not published an attacker-controlled trigger or concrete consequence.
Summary
What happened
Use-after-free in the Xilinx event manager in Linux allows attackers to cause an unspecified impact via unspecified vectors. The event-removal path in drivers/soc/xilinx/xlnx_event_manager.c frees eve_data inside hash_for_each_possible(), whose next iteration dereferences that freed entry. Reachability requires the Xilinx event-manager code and an event-removal operation; the Linux CNA has not published an attacker-controlled trigger or concrete consequence.
The record
- CVE
- CVE-2023-54101
- Published
- Dec 24, 2025
- Updated
- Dec 24, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Dec 24, 2025CVE publishedPublication date reported by the CVE source.
- Dec 24, 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=5.17
- Affected versionversion=c7fdb2404f66131bc9c22e06f712717288826487 <256aace3a5d8c987183ba4832dffb36f48ea7d3b
- Affected versionversion=c7fdb2404f66131bc9c22e06f712717288826487 <49fca83f6f3f0cafe5bf5b43e8ee81cf73c2d5e0
- Affected versionversion=c7fdb2404f66131bc9c22e06f712717288826487 <c58da0ba3e5c86e51e2c1557afaf6f71e00c4533
- Affected versionversion=c7fdb2404f66131bc9c22e06f712717288826487 <f16599e638073ef0b2828bb64f5e99138e9381b5
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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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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