CVE detail
CVE-2024-35811
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach This is the candidate patch of CVE-2023-47233 : https://nvd.nist.gov/vuln/detail/CVE-2023-47233 In brcm80211 driver,it starts with the following invoking chain to start init a timeout worker: ->brcmf_usb_probe ->brcmf_usb_probe_cb ->brcmf_attach ->brcmf_bus_started ->brcmf_cfg80211_attach ->wl_init_priv ->brcmf_init_escan ->INIT_WORK(&cfg->escan_timeout_work, brcmf_cfg80211_escan_timeout_worker); If we disconnect the USB by hotplug, it will call brcmf_usb_disconnect to make cleanup. The invoking chain is : brcmf_usb_disconnect ->brcmf_usb_disconnect_cb ->brcmf_detach ->brcmf_cfg80211_detach ->kfree(cfg); While the timeout woker may still be running. This will cause a use-after-free bug on cfg in brcmf_cfg80211_escan_timeout_worker. Fix it by deleting the timer and canceling the worker in brcmf_cfg80211_detach. [[email protected]: keep timer delete as is and cancel work just before free]
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 25.6 · diversity 11.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
12 source links · newest first
- https://cert-portal.siemens.com/productcert/html/ssa-265688.htmlcert-portal.siemens.com
No excerpt available.
Vendor Advisorycert-portal.siemens.comMay 17, 2024, 2:15 PM No excerpt available.
Vendor Advisorylists.debian.orgMay 17, 2024, 2:15 PMNo excerpt available.
Vendor Advisorylists.debian.orgMay 17, 2024, 2:15 PMNo excerpt available.
Exploitgit.kernel.orgMay 17, 2024, 2:15 PMNo excerpt available.
Exploitgit.kernel.orgMay 17, 2024, 2:15 PMNo excerpt available.
Exploitgit.kernel.orgMay 17, 2024, 2:15 PMNo excerpt available.
Exploitgit.kernel.orgMay 17, 2024, 2:15 PMNo excerpt available.
Exploitgit.kernel.orgMay 17, 2024, 2:15 PMNo excerpt available.
Exploitgit.kernel.orgMay 17, 2024, 2:15 PMNo excerpt available.
Exploitgit.kernel.orgMay 17, 2024, 2:15 PMNo excerpt available.
Exploitgit.kernel.orgMay 17, 2024, 2:15 PMNo excerpt available.
Exploitgit.kernel.orgMay 17, 2024, 2:15 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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