From: Xin Long <lucien....@gmail.com>
Date: Tue, 25 Jun 2019 00:28:19 +0800
> This patch is to fix an uninit-value issue, reported by syzbot:
...
> TLV_GET_DATA_LEN() may return a negtive int value, which will be
> used as size_t (becoming a big unsigned long) passed into memchr,
> cause this issue.
>
> Similar to what it does in tipc_nl_compat_bearer_enable(), this
> fix is to return -EINVAL when TLV_GET_DATA_LEN() is negtive in
> tipc_nl_compat_bearer_disable(), as well as in
> tipc_nl_compat_link_stat_dump() and tipc_nl_compat_link_reset_stats().
>
> v1->v2:
> - add the missing Fixes tags per Eric's request.
>
> Fixes: 0762216c0ad2 ("tipc: fix uninit-value in tipc_nl_compat_bearer_enable")
> Fixes: 8b66fee7f8ee ("tipc: fix uninit-value in
> tipc_nl_compat_link_reset_stats")
> Reported-by: syzbot+30eaa8bf392f7faff...@syzkaller.appspotmail.com
> Signed-off-by: Xin Long <lucien....@gmail.com>
Applied and queued up for -stable, thanks.
