| From 27eb4c3144f7a5ebef3c9a261d80cb3e1fa784dc Mon Sep 17 00:00:00 2001 |
| From: Dominique Martinet <asmadeus@codewreck.org> |
| Date: Tue, 2 Nov 2021 19:47:47 +0900 |
| Subject: 9p/net: fix missing error check in p9_check_errors |
| |
| From: Dominique Martinet <asmadeus@codewreck.org> |
| |
| commit 27eb4c3144f7a5ebef3c9a261d80cb3e1fa784dc upstream. |
| |
| Link: https://lkml.kernel.org/r/99338965-d36c-886e-cd0e-1d8fff2b4746@gmail.com |
| Reported-by: syzbot+06472778c97ed94af66d@syzkaller.appspotmail.com |
| Cc: stable@vger.kernel.org |
| Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| net/9p/client.c | 2 ++ |
| 1 file changed, 2 insertions(+) |
| |
| --- a/net/9p/client.c |
| +++ b/net/9p/client.c |
| @@ -538,6 +538,8 @@ static int p9_check_errors(struct p9_cli |
| kfree(ename); |
| } else { |
| err = p9pdu_readf(&req->rc, c->proto_version, "d", &ecode); |
| + if (err) |
| + goto out_err; |
| err = -ecode; |
| |
| p9_debug(P9_DEBUG_9P, "<<< RLERROR (%d)\n", -ecode); |
