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| author | Oliver Neukum <oneukum@suse.com> | 2019-08-08 16:21:19 +0200 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2019-11-22 15:57:17 +0000 |
| commit | 3a8f54a68c9868ddae64603f2ddee082c1737075 (patch) | |
| tree | 182b95ab7c62fe9f047635090dcbde5bc687b769 /net | |
| parent | 5dc88c0bd578c05e4b764bdb2606017995ff9724 (diff) | |
| download | linux-stable-3a8f54a68c9868ddae64603f2ddee082c1737075.tar.gz linux-stable-3a8f54a68c9868ddae64603f2ddee082c1737075.tar.bz2 linux-stable-3a8f54a68c9868ddae64603f2ddee082c1737075.zip | |
usb: cdc-acm: make sure a refcount is taken early enough
commit c52873e5a1ef72f845526d9f6a50704433f9c625 upstream.
destroy() will decrement the refcount on the interface, so that
it needs to be taken so early that it never undercounts.
Fixes: 7fb57a019f94e ("USB: cdc-acm: Fix potential deadlock (lockdep warning)")
Reported-and-tested-by: syzbot+1b2449b7b5dc240d107a@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20190808142119.7998-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions