Thread (7 messages) 7 messages, 4 authors, 2021-07-01

Re: [Linux-kernel-mentees] [PATCH v2] net/bluetooth: Fix slab-out-of-bounds read in hci_extended_inquiry_result_evt()

From: Greg KH <gregkh@linuxfoundation.org>
Date: 2020-07-10 10:43:24
Also in: linux-bluetooth, linux-kernel-mentees, lkml

On Thu, Jul 09, 2020 at 09:02:24AM -0400, Peilin Ye wrote:
Check upon `num_rsp` is insufficient. A malformed event packet with a
large `num_rsp` number makes hci_extended_inquiry_result_evt() go out
of bounds. Fix it.

This patch fixes the following syzbot bug:

    https://syzkaller.appspot.com/bug?id=4bf11aa05c4ca51ce0df86e500fce486552dc8d2

Reported-by: syzbot+d8489a79b781849b9c46@syzkaller.appspotmail.com
Signed-off-by: Peilin Ye <redacted>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Bluetooth maintainers, can you also add a cc: stable on this so it gets
picked up properly there?

thanks,

greg k-h
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