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/ext2/symlink.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 fs/ext2/symlink.c (limited to 'fs/ext2/symlink.c') diff --git a/fs/ext2/symlink.c b/fs/ext2/symlink.c new file mode 100644 index 000000000..948d3a441 --- /dev/null +++ b/fs/ext2/symlink.c @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * linux/fs/ext2/symlink.c + * + * Only fast symlinks left here - the rest is done by generic code. AV, 1999 + * + * Copyright (C) 1992, 1993, 1994, 1995 + * Remy Card (card@masi.ibp.fr) + * Laboratoire MASI - Institut Blaise Pascal + * Universite Pierre et Marie Curie (Paris VI) + * + * from + * + * linux/fs/minix/symlink.c + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * ext2 symlink handling code + */ + +#include "ext2.h" +#include "xattr.h" + +const struct inode_operations ext2_symlink_inode_operations = { + .get_link = page_get_link, + .getattr = ext2_getattr, + .setattr = ext2_setattr, + .listxattr = ext2_listxattr, +}; + +const struct inode_operations ext2_fast_symlink_inode_operations = { + .get_link = simple_get_link, + .getattr = ext2_getattr, + .setattr = ext2_setattr, + .listxattr = ext2_listxattr, +}; -- cgit v1.3.1