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 --- fs/ntfs3/debug.h | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 fs/ntfs3/debug.h (limited to 'fs/ntfs3/debug.h') diff --git a/fs/ntfs3/debug.h b/fs/ntfs3/debug.h new file mode 100644 index 000000000..53ef7489c --- /dev/null +++ b/fs/ntfs3/debug.h @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * + * Copyright (C) 2019-2021 Paragon Software GmbH, All rights reserved. + * + * Useful functions for debugging. + * + */ + +// clang-format off +#ifndef _LINUX_NTFS3_DEBUG_H +#define _LINUX_NTFS3_DEBUG_H + +struct super_block; +struct inode; + +#ifndef Add2Ptr +#define Add2Ptr(P, I) ((void *)((u8 *)(P) + (I))) +#define PtrOffset(B, O) ((size_t)((size_t)(O) - (size_t)(B))) +#endif + +#ifdef CONFIG_PRINTK +__printf(2, 3) +void ntfs_printk(const struct super_block *sb, const char *fmt, ...); +__printf(2, 3) +void ntfs_inode_printk(struct inode *inode, const char *fmt, ...); +#else +static inline __printf(2, 3) +void ntfs_printk(const struct super_block *sb, const char *fmt, ...) +{ +} + +static inline __printf(2, 3) +void ntfs_inode_printk(struct inode *inode, const char *fmt, ...) +{ +} +#endif + +/* + * Logging macros. Thanks Joe Perches for implementation. + */ + +#define ntfs_err(sb, fmt, ...) ntfs_printk(sb, KERN_ERR fmt, ##__VA_ARGS__) +#define ntfs_warn(sb, fmt, ...) ntfs_printk(sb, KERN_WARNING fmt, ##__VA_ARGS__) +#define ntfs_info(sb, fmt, ...) ntfs_printk(sb, KERN_INFO fmt, ##__VA_ARGS__) +#define ntfs_notice(sb, fmt, ...) \ + ntfs_printk(sb, KERN_NOTICE fmt, ##__VA_ARGS__) + +#define ntfs_inode_err(inode, fmt, ...) \ + ntfs_inode_printk(inode, KERN_ERR fmt, ##__VA_ARGS__) +#define ntfs_inode_warn(inode, fmt, ...) \ + ntfs_inode_printk(inode, KERN_WARNING fmt, ##__VA_ARGS__) + +#endif /* _LINUX_NTFS3_DEBUG_H */ +// clang-format on -- cgit v1.3.1