kobject_uevent: remove warning in init_uevent_argv()
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 5 Apr 2021 09:48:52 +0000 (11:48 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 22 May 2021 08:40:33 +0000 (10:40 +0200)
commita36d9baf46fdc29ce7febc5b3dbf95fa7bfc032b
treee15bf6fa597e901101ddca68d8b13606b99a65eb
parentc13f07341685149cfbc2014e8b4a85ff56d4ae0e
kobject_uevent: remove warning in init_uevent_argv()

commit b4104180a2efb85f55e1ba1407885c9421970338 upstream.

syzbot can trigger the WARN() in init_uevent_argv() which isn't the
nicest as the code does properly recover and handle the error.  So
change the WARN() call to pr_warn() and provide some more information on
what the buffer size that was needed.

Link: https://lore.kernel.org/r/20201107082206.GA19079@kroah.com
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: linux-kernel@vger.kernel.org
Reported-by: syzbot+92340f7b2b4789907fdb@syzkaller.appspotmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210405094852.1348499-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
lib/kobject_uevent.c