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[ Upstream commit ff355926445897cc9fdea3b00611e514232c213c ] Syzbot reported a WARNING in ntfs_extend_initialized_size. The data type of in->i_valid and to is u64 in ntfs_file_mmap(). If their values are greater than LLONG_MAX, overflow will occur because the data types of the parameters valid and new_valid corresponding to the function ntfs_extend_initialized_size() are loff_t. Before calling ntfs_extend_initialized_size() in the ntfs_file_mmap(), the "ni->i_valid < to" has been determined, so the same WARN_ON determination is not required in ntfs_extend_initialized_size(). Just execute the ntfs_extend_initialized_size() in ntfs_extend() to make a WARN_ON check. Reported-and-tested-by: syzbot+e37dd1dfc814b10caa55@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=e37dd1dfc814b10caa55 Signed-off-by: Edward Adam Davis <eadavis@qq.com> Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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| .. | ||
| lib | ||
| attrib.c | ||
| attrlist.c | ||
| bitfunc.c | ||
| bitmap.c | ||
| debug.h | ||
| dir.c | ||
| file.c | ||
| frecord.c | ||
| fslog.c | ||
| fsntfs.c | ||
| index.c | ||
| inode.c | ||
| Kconfig | ||
| lznt.c | ||
| Makefile | ||
| namei.c | ||
| ntfs_fs.h | ||
| ntfs.h | ||
| record.c | ||
| run.c | ||
| super.c | ||
| upcase.c | ||
| xattr.c | ||