Re: [PATCH v4] nbd: Fix memory leak in nbd_add_socket
From: Eric Biggers <ebiggers@kernel.org>
Date: 2020-07-08 20:32:08
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On Mon, Jun 29, 2020 at 09:23:49AM +0800, Zheng Bin wrote:
When adding first socket to nbd, if nsock's allocation failed, the data
structure member "config->socks" was reallocated, but the data structure
member "config->num_connections" was not updated. A memory leak will occur
then because the function "nbd_config_put" will free "config->socks" only
when "config->num_connections" is not zero.
Fixes: 03bf73c315ed ("nbd: prevent memory leak")
Reported-by: syzbot+934037347002901b8d2a@syzkaller.appspotmail.com
Signed-off-by: Zheng Bin <redacted>
---Reviewed-by: Eric Biggers <redacted>