From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- net/mac80211/debugfs_sta.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 net/mac80211/debugfs_sta.h (limited to 'net/mac80211/debugfs_sta.h') diff --git a/net/mac80211/debugfs_sta.h b/net/mac80211/debugfs_sta.h new file mode 100644 index 000000000..cde8148bd --- /dev/null +++ b/net/mac80211/debugfs_sta.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __MAC80211_DEBUGFS_STA_H +#define __MAC80211_DEBUGFS_STA_H + +#include "sta_info.h" + +#ifdef CONFIG_MAC80211_DEBUGFS +void ieee80211_sta_debugfs_add(struct sta_info *sta); +void ieee80211_sta_debugfs_remove(struct sta_info *sta); + +void ieee80211_link_sta_debugfs_add(struct link_sta_info *link_sta); +void ieee80211_link_sta_debugfs_remove(struct link_sta_info *link_sta); + +void ieee80211_link_sta_debugfs_drv_add(struct link_sta_info *link_sta); +void ieee80211_link_sta_debugfs_drv_remove(struct link_sta_info *link_sta); +#else +static inline void ieee80211_sta_debugfs_add(struct sta_info *sta) {} +static inline void ieee80211_sta_debugfs_remove(struct sta_info *sta) {} + +static inline void ieee80211_link_sta_debugfs_add(struct link_sta_info *link_sta) {} +static inline void ieee80211_link_sta_debugfs_remove(struct link_sta_info *link_sta) {} + +static inline void ieee80211_link_sta_debugfs_drv_add(struct link_sta_info *link_sta) {} +static inline void ieee80211_link_sta_debugfs_drv_remove(struct link_sta_info *link_sta) {} +#endif + +#endif /* __MAC80211_DEBUGFS_STA_H */ -- cgit v1.3.1