From 47912eaa061a6a81e4aa790591a1874c650733c0 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Thu, 21 Jul 2022 16:06:18 +0200 Subject: fuse: limit nsec Limit nanoseconds to 0..999999999. Fixes: d8a5ba45457e ("[PATCH] FUSE - core") Cc: Signed-off-by: Miklos Szeredi --- fs/fuse/inode.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'fs/fuse/inode.c') diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 8c0665c5dff8..7c290089e693 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -180,6 +180,12 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr, 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 */ -- cgit v1.2.3