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From: syzbot <syzbot+a4ccdd7ebf452e4d4701@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Forwarded: io_uring/cmd: don't skip completion for a non-armed multishot uring_cmd
Date: Tue, 11 Aug 2026 01:09:59 -0700	[thread overview]
Message-ID: <6a7ad8d7.b50370da.49fe0.0065.GAE@google.com> (raw)
In-Reply-To: <6a7a0194.b50370da.49fe0.0056.GAE@google.com>

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***

Subject: io_uring/cmd: don't skip completion for a non-armed multishot uring_cmd
Author: vasilisalmpanis@gmail.com

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git dad19b6f6336e1587b0f767d5b4e2b5543224b43

diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c
index c14c22cff49e..a2899a852879 100644
--- a/io_uring/uring_cmd.c
+++ b/io_uring/uring_cmd.c
@@ -269,7 +269,8 @@ int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags)
 	}
 
 	ret = file->f_op->uring_cmd(ioucmd, issue_flags);
-	if (ioucmd->flags & IORING_URING_CMD_MULTISHOT) {
+	if ((ioucmd->flags & IORING_URING_CMD_MULTISHOT) &&
+	    (req->flags & REQ_F_APOLL_MULTISHOT)) {
 		if (ret >= 0)
 			return IOU_ISSUE_SKIP_COMPLETE;
 	}

      reply	other threads:[~2026-08-11  8:10 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-10 16:51 [syzbot] [io-uring?] [block?] memory leak in io_submit_sqes (6) syzbot
2026-08-11  8:09 ` syzbot [this message]

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