lkml.org 
[lkml]   [2023]   [Mar]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] Bluetooth: HCI: Fix global-out-of-bounds
On Mon, Mar 20, 2023 at 09:50:18PM -0400, Sungwoo Kim wrote:
> To loop a variable-length array, hci_init_stage_sync(stage) considers
> that stage[i] is valid as long as stage[i-1].func is valid.
> Thus, the last element of stage[].func should be intentionally invalid
> as hci_init0[], le_init2[], and others did.
> However, amp_init1[] and amp_init2[] have no invalid element, letting
> hci_init_stage_sync() keep accessing amp_init1[] over its valid range.
> This patch fixes this by adding {} in the last of amp_init1[] and
> amp_init2[].

...

> This bug is found by FuzzBT, a modified version of Syzkaller.
> Other contributors for this bug are Ruoyu Wu and Peng Hui.
>
> Fixes: d0b137062b2d ("Bluetooth: hci_sync: Rework init stages")
> Signed-off-by: Sungwoo Kim <iam@sung-woo.kim>

Reviewed-by: Simon Horman <simon.horman@corigine.com>


...

\
 
 \ /
  Last update: 2023-03-27 01:10    [W:0.059 / U:0.308 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site