This is a note to let you know that I've just added the patch titled 9p/net: fix missing error check in p9_check_errors to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: 9p-net-fix-missing-error-check-in-p9_check_errors.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 27eb4c3144f7a5ebef3c9a261d80cb3e1fa784dc Mon Sep 17 00:00:00 2001 From: Dominique Martinet <asmadeus@xxxxxxxxxxxxx> Date: Tue, 2 Nov 2021 19:47:47 +0900 Subject: 9p/net: fix missing error check in p9_check_errors From: Dominique Martinet <asmadeus@xxxxxxxxxxxxx> commit 27eb4c3144f7a5ebef3c9a261d80cb3e1fa784dc upstream. Link: https://lkml.kernel.org/r/99338965-d36c-886e-cd0e-1d8fff2b4746@xxxxxxxxx Reported-by: syzbot+06472778c97ed94af66d@xxxxxxxxxxxxxxxxxxxxxxxxx Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Dominique Martinet <asmadeus@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/9p/client.c | 2 ++ 1 file changed, 2 insertions(+) --- a/net/9p/client.c +++ b/net/9p/client.c @@ -553,6 +553,8 @@ 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); Patches currently in stable-queue which might be from asmadeus@xxxxxxxxxxxxx are queue-4.19/9p-net-fix-missing-error-check-in-p9_check_errors.patch