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charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: [syzbot] [fs?] general protection fault in iter_file_splice_write Author: lizhi.xu@windriver.com #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 33e02dc69afb diff --git a/fs/netfs/direct_write.c b/fs/netfs/direct_write.c index 608ba6416919..d74761fb1876 100644 --- a/fs/netfs/direct_write.c +++ b/fs/netfs/direct_write.c @@ -69,7 +69,7 @@ static ssize_t netfs_unbuffered_write_iter_locked(struct kiocb *iocb, struct iov */ if (async || user_backed_iter(iter)) { n = netfs_extract_user_iter(iter, len, &wreq->iter, 0); - if (n < 0) { + if (n <= 0) { ret = n; goto out; }