CVE-2026-98326 in Linux信息

摘要

由 VulDB • 2026-10-06

在 Linux 内核中,已修复以下漏洞:

wifi: mac80211: mesh: 如果启动失败则释放信道上下文

ieee80211_join_mesh() 获取了信道上下文(channel context),然后调用 ieee80211_start_mesh(),该函数可能会失败。在这种情况下,chanctx 未被释放,随后接口移除操作会尝试在从驱动程序中移除后取消分配它,从而触发以下错误:

wlan0: Failed check-sdata-in-driver check, flags: 0x0 WARNING: net/mac80211/driver-ops.c:366 at drv_unassign_vif_chanctx ieee80211_assign_link_chanctx __ieee80211_link_release_channel ieee80211_link_release_channel ieee80211_teardown_sdata unregister_netdevice_many_notify _cfg80211_unregister_wdev ieee80211_remove_interfaces ieee80211_unregister_hw mac80211_hwsim_del_radio hwsim_exit_net

在启动失败时正确释放信道上下文。

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