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/hfsplus/xattr_user.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 fs/hfsplus/xattr_user.c (limited to 'fs/hfsplus/xattr_user.c') diff --git a/fs/hfsplus/xattr_user.c b/fs/hfsplus/xattr_user.c new file mode 100644 index 000000000..6464b6c3d --- /dev/null +++ b/fs/hfsplus/xattr_user.c @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * linux/fs/hfsplus/xattr_user.c + * + * Vyacheslav Dubeyko + * + * Handler for user extended attributes. + */ + +#include + +#include "hfsplus_fs.h" +#include "xattr.h" + +static int hfsplus_user_getxattr(const struct xattr_handler *handler, + struct dentry *unused, struct inode *inode, + const char *name, void *buffer, size_t size) +{ + + return hfsplus_getxattr(inode, name, buffer, size, + XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN); +} + +static int hfsplus_user_setxattr(const struct xattr_handler *handler, + struct mnt_idmap *idmap, + struct dentry *unused, struct inode *inode, + const char *name, const void *buffer, + size_t size, int flags) +{ + return hfsplus_setxattr(inode, name, buffer, size, flags, + XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN); +} + +const struct xattr_handler hfsplus_xattr_user_handler = { + .prefix = XATTR_USER_PREFIX, + .get = hfsplus_user_getxattr, + .set = hfsplus_user_setxattr, +}; -- cgit v1.3.1