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 --- arch/powerpc/boot/stdio.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 arch/powerpc/boot/stdio.h (limited to 'arch/powerpc/boot/stdio.h') diff --git a/arch/powerpc/boot/stdio.h b/arch/powerpc/boot/stdio.h new file mode 100644 index 000000000..d5a7a0f54 --- /dev/null +++ b/arch/powerpc/boot/stdio.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _PPC_BOOT_STDIO_H_ +#define _PPC_BOOT_STDIO_H_ + +#include + +#define ENOMEM 12 /* Out of Memory */ +#define EINVAL 22 /* Invalid argument */ +#define ENOSPC 28 /* No space left on device */ + +extern int printf(const char *fmt, ...) __attribute__((format(printf, 1, 2))); + +#define fprintf(fmt, args...) printf(args) + +extern int vsprintf(char *buf, const char *fmt, va_list args); + +#endif /* _PPC_BOOT_STDIO_H_ */ -- cgit v1.3.1