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CVE-2024-47712wifi: wilc1000: fix potential RCU dereference issue in wilc_parse_join_bss_param

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix potential RCU dereference issue in wilc_parse_join_bss_param In the `wilc_parse_join_bss_param` function, the TSF field of the `ies` structure is accessed after the RCU read-side critical section is unlocked. According to RCU usage rules, this is illegal. Reusing this pointer can lead to unpredictable behavior, including accessing memory that has been updated or causing use-after-free issues. This possible bug was identified using a static analysis tool developed by myself, specifically designed to detect RCU-related issues. To address this, the TSF value is now stored in a local variable `ies_tsf` before the RCU lock is released. The `param->tsf_lo` field is then assigned using this local variable, ensuring that the TSF value is safely accessed.

Timeline

  1. ID reserved

    By Linux

  2. · 21 days later

    Published

  3. · 22 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2024-47712, by who scored it
Scored byCVSSScoreVector
LinuxCNA (assigner)3.1High8.3CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
NVDNVD · Modified3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.36% · top 69% of all CVEs (14 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.3.

Affected products

  • Linux · Linux

    • affected e556006de4ea93abe2b46cba202a2556c544b8b2 – < 5a24cedc243ace5ed7c1016f52a7bfc8f5b07815
    • affected b4bbf38c350acb6500cbe667b1e2e68f896e4b38 – < 557418e1704605a81c9e26732449f71b1d40ba1e
    • affected d80fc436751cfa6b02a8eda74eb6cce7dadfe5a2 – < bf090f4fe935294361eabd9dc5a949fdd77d3d1b
    • affected 745003b5917b610352f52fe0d11ef658d6471ec2 – < b040b71d99ee5e17bb7a743dc01cbfcae8908ce1
    • affected 4bfd20d5f5c62b5495d6c0016ee6933bd3add7ce – < 84398204c5df5aaf89453056cf0647cda9664d2b
    • affected 205c50306acf58a335eb19fa84e40140f4fe814f – < 2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5
    • affected 205c50306acf58a335eb19fa84e40140f4fe814f – < 79510414a7626317f13cc9073244ab7a8deb3192
    • affected 205c50306acf58a335eb19fa84e40140f4fe814f – < 6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8
    • affected 5800ec78775c0cd646f71eb9bf8402fb794807de
    • affected dd50d3ead6e3707bb0a5df7cc832730c93ace3a7
    • affected 5.4.273 – < 5.4.285
    • affected 5.10.214 – < 5.10.227
    • affected 5.15.153 – < 5.15.168
    • affected 6.1.83 – < 6.1.113
    • affected 6.6.23 – < 6.6.54
    • affected 6.7.11 – < 6.8
    • affected 6.8.2 – < 6.9

  • Linux · Linux

    • affected 6.9
    • unaffected < 6.9
    • unaffected 5.4.285 – ≤ 5.4.*
    • unaffected 5.10.227 – ≤ 5.10.*
    • unaffected 5.15.168 – ≤ 5.15.*
    • unaffected 6.1.113 – ≤ 6.1.*
    • unaffected 6.6.54 – ≤ 6.6.*
    • unaffected 6.10.13 – ≤ 6.10.*
    • unaffected 6.11.2 – ≤ 6.11.*
    • unaffected 6.12 – ≤ *

References

References10

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .