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 --- drivers/soc/qcom/trace-aoss.h | 48 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 drivers/soc/qcom/trace-aoss.h (limited to 'drivers/soc/qcom/trace-aoss.h') diff --git a/drivers/soc/qcom/trace-aoss.h b/drivers/soc/qcom/trace-aoss.h new file mode 100644 index 000000000..fb5b0470c --- /dev/null +++ b/drivers/soc/qcom/trace-aoss.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM qcom_aoss + +#if !defined(_TRACE_QCOM_AOSS_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_QCOM_AOSS_H + +#include + +TRACE_EVENT(aoss_send, + TP_PROTO(const char *msg), + TP_ARGS(msg), + TP_STRUCT__entry( + __string(msg, msg) + ), + TP_fast_assign( + __assign_str(msg); + ), + TP_printk("%s", __get_str(msg)) +); + +TRACE_EVENT(aoss_send_done, + TP_PROTO(const char *msg, int ret), + TP_ARGS(msg, ret), + TP_STRUCT__entry( + __string(msg, msg) + __field(int, ret) + ), + TP_fast_assign( + __assign_str(msg); + __entry->ret = ret; + ), + TP_printk("%s: %d", __get_str(msg), __entry->ret) +); + +#endif /* _TRACE_QCOM_AOSS_H */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . + +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE trace-aoss + +#include -- cgit v1.3.1