Local system crash via post-RCU TSF dereference
Published Oct 21, 2024 · Updated Aug 5, 2026
Unsafe pointer dereference in the Linux wilc1000 driver allows local users to crash affected systems during a Wi-Fi connection. wilc_parse_join_bss_param reads ies->tsf after leaving its RCU read-side critical section, so the ies pointer can reference updated or freed memory. Reachability requires the Microchip WILC1000 or WILC3000 Wi-Fi driver and a concurrent update during connection processing; the documented consequence is unpredictable memory access or a system crash.
Summary
What happened
Unsafe pointer dereference in the Linux wilc1000 driver allows local users to crash affected systems during a Wi-Fi connection. wilc_parse_join_bss_param reads ies->tsf after leaving its RCU read-side critical section, so the ies pointer can reference updated or freed memory. Reachability requires the Microchip WILC1000 or WILC3000 Wi-Fi driver and a concurrent update during connection processing; the documented consequence is unpredictable memory access or a system crash.
The record
- CVE
- CVE-2024-47712
- Published
- Oct 21, 2024
- Updated
- Aug 5, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-476
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 21, 2024CVE 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=205c50306acf58a335eb19fa84e40140f4fe814f <2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5
- Affected versionversion=205c50306acf58a335eb19fa84e40140f4fe814f <6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8
- Affected versionversion=205c50306acf58a335eb19fa84e40140f4fe814f <79510414a7626317f13cc9073244ab7a8deb3192
- Affected versionversion=4bfd20d5f5c62b5495d6c0016ee6933bd3add7ce <84398204c5df5aaf89453056cf0647cda9664d2b
- Affected versionversion=5.10.214 <5.10.227
- Affected versionversion=5.15.153 <5.15.168
- Affected versionversion=5.4.273 <5.4.285
- Affected versionversion=5800ec78775c0cd646f71eb9bf8402fb794807de
- Affected versionversion=6.1.83 <6.1.113
- Affected versionversion=6.6.23 <6.6.54
- Affected versionversion=6.7.11 <6.8
- Affected versionversion=6.8.2 <6.9
- Affected versionversion=6.9
- Affected versionversion=745003b5917b610352f52fe0d11ef658d6471ec2 <b040b71d99ee5e17bb7a743dc01cbfcae8908ce1
- Affected versionversion=b4bbf38c350acb6500cbe667b1e2e68f896e4b38 <557418e1704605a81c9e26732449f71b1d40ba1e
- Affected versionversion=d80fc436751cfa6b02a8eda74eb6cce7dadfe5a2 <bf090f4fe935294361eabd9dc5a949fdd77d3d1b
- Affected versionversion=dd50d3ead6e3707bb0a5df7cc832730c93ace3a7
- Affected versionversion=e556006de4ea93abe2b46cba202a2556c544b8b2 <5a24cedc243ace5ed7c1016f52a7bfc8f5b07815
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
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