cve 2023 53209

About this tag
CVE-2023-53209 is a Linux kernel vulnerability in the mac80211 hardware simulation driver (mac80211_hwsim). It involves a NULL pointer dereference caused by a logic error where the code calls mac80211_hwsim_select_tx_link without verifying that a station pointer is non-NULL. This can lead to a kernel crash, potentially disrupting services. The patch fixes this by adding a proper NULL check. While the vulnerability is in the Linux kernel, it is relevant to Windows users running virtualized or testing environments that include Linux components. Discussions on WindowsForum.com cover the technical details of the flaw and the fix.

  1. Linux Kernel Patch Fixes mac80211_hwsim NULL Pointer Dereference CVE-2023-53209

    The Linux kernel patch addressing CVE-2023-53209 fixes a simple but consequential logic error in the mac80211 hardware‑simulation driver (mac80211_hwsim): the code could call mac80211_hwsim_select_tx_link and dereference a station pointer (sta) without verifying it was non‑NULL, creating a...
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