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Reusing this\npointer can lead to unpredictable behavior, including accessing memory\nthat has been updated or causing use-after-free issues.\n\nThis possible bug was identified using a static analysis tool developed\nby myself, specifically designed to detect RCU-related issues.\n\nTo address this, the TSF value is now stored in a local variable\n`ies_tsf` before the RCU lock is released. The `param->tsf_lo` field is\nthen assigned using this local variable, ensuring that the TSF value is\nsafely accessed.","state":"PUBLISHED","assigner":"Linux","published_at":"2024-10-21 12:15:07","updated_at":"2026-08-04 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According to RCU usage rules, this is illegal. Reusing this\npointer can lead to unpredictable behavior, including accessing memory\nthat has been updated or causing use-after-free issues.\n\nThis possible bug was identified using a static analysis tool developed\nby myself, specifically designed to detect RCU-related issues.\n\nTo address this, the TSF value is now stored in a local variable\n`ies_tsf` before the RCU lock is released. The `param->tsf_lo` field is\nthen assigned using this local variable, ensuring that the TSF value is\nsafely accessed."}],"metrics":[{"cvssV3_1":{"baseScore":8.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-08-04T09:32:55.521Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/5a24cedc243ace5ed7c1016f52a7bfc8f5b07815"},{"url":"https://git.kernel.org/stable/c/557418e1704605a81c9e26732449f71b1d40ba1e"},{"url":"https://git.kernel.org/stable/c/bf090f4fe935294361eabd9dc5a949fdd77d3d1b"},{"url":"https://git.kernel.org/stable/c/b040b71d99ee5e17bb7a743dc01cbfcae8908ce1"},{"url":"https://git.kernel.org/stable/c/84398204c5df5aaf89453056cf0647cda9664d2b"},{"url":"https://git.kernel.org/stable/c/2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5"},{"url":"https://git.kernel.org/stable/c/79510414a7626317f13cc9073244ab7a8deb3192"},{"url":"https://git.kernel.org/stable/c/6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8"}],"title":"wifi: wilc1000: fix 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wilc1000: fix potential RCU dereference issue in wilc_pars","CVE":"CVE-2024-47712","Year":"2024"},"notes":[{"CveYear":"2024","CveId":"47712","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: fix potential RCU dereference issue in wilc_parse_join_bss_param\n\nIn the `wilc_parse_join_bss_param` function, the TSF field of the `ies`\nstructure is accessed after the RCU read-side critical section is\nunlocked. According to RCU usage rules, this is illegal. Reusing this\npointer can lead to unpredictable behavior, including accessing memory\nthat has been updated or causing use-after-free issues.\n\nThis possible bug was identified using a static analysis tool developed\nby myself, specifically designed to detect RCU-related issues.\n\nTo address this, the TSF value is now stored in a local variable\n`ies_tsf` before the RCU lock is released. The `param->tsf_lo` field is\nthen assigned using this local variable, ensuring that the TSF value is\nsafely accessed.","Type":"Description","Title":"wifi: wilc1000: fix potential RCU dereference issue in wilc_pars"}]}}}