From: Miklos Szeredi <mszeredi@xxxxxxxxxx>
commit 47912eaa061a6a81e4aa790591a1874c650733c0 upstream.
Limit nanoseconds to 0..999999999.
Fixes: d8a5ba45457e ("[PATCH] FUSE - core")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/fuse/inode.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -174,6 +174,12 @@ void fuse_change_attributes_common(struc
inode->i_uid = make_kuid(fc->user_ns, attr->uid);
inode->i_gid = make_kgid(fc->user_ns, attr->gid);
inode->i_blocks = attr->blocks;
+
+ /* Sanitize nsecs */
+ attr->atimensec = min_t(u32, attr->atimensec, NSEC_PER_SEC - 1);
+ attr->mtimensec = min_t(u32, attr->mtimensec, NSEC_PER_SEC - 1);
+ attr->ctimensec = min_t(u32, attr->ctimensec, NSEC_PER_SEC - 1);
+
inode->i_atime.tv_sec = attr->atime;
inode->i_atime.tv_nsec = attr->atimensec;
/* mtime from server may be stale due to local buffered write */
