linux-kernel - Re: [PATCH] Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor

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Message-Id: 
 <173687823803.85489.9643212113679660119.git-patchwork-notify@kernel.org>
Date: Tue, 14 Jan 2025 18:10:38 +0000
From: patchwork-bot+bluetooth@...nel.org
To: Mazin Al Haddad <mazin@...state.dev>
Cc: marcel@...tmann.org, johan.hedberg@...il.com, luiz.dentz@...il.com,
 linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
 syzbot+479aff51bb361ef5aa18@...kaller.appspotmail.com
Subject: Re: [PATCH] Bluetooth: MGMT: Fix slab-use-after-free Read in
 mgmt_remove_adv_monitor_sync

Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@...el.com>:

On Tue, 24 Dec 2024 05:06:16 +0300 you wrote:
> This fixes the following crash:
> 
> ==================================================================
> BUG: KASAN: slab-use-after-free in mgmt_remove_adv_monitor_sync+0x3a/0xd0 net/bluetooth/mgmt.c:5543
> Read of size 8 at addr ffff88814128f898 by task kworker/u9:4/5961
> 
> CPU: 1 UID: 0 PID: 5961 Comm: kworker/u9:4 Not tainted 6.12.0-syzkaller-10684-gf1cd565ce577 #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> Workqueue: hci0 hci_cmd_sync_work
> Call Trace:
>  <TASK>
>  __dump_stack lib/dump_stack.c:94 [inline]
>  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
>  print_address_description mm/kasan/report.c:378 [inline]
>  print_report+0x169/0x550 mm/kasan/report.c:489
>  kasan_report+0x143/0x180 mm/kasan/report.c:602
>  mgmt_remove_adv_monitor_sync+0x3a/0xd0 net/bluetooth/mgmt.c:5543
>  hci_cmd_sync_work+0x22b/0x400 net/bluetooth/hci_sync.c:332
>  process_one_work kernel/workqueue.c:3229 [inline]
>  process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
>  worker_thread+0x870/0xd30 kernel/workqueue.c:3391
>  kthread+0x2f0/0x390 kernel/kthread.c:389
>  ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
>  ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
>  </TASK>
> 
> [...]

Here is the summary with links:
  - Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync
    https://git.kernel.org/bluetooth/bluetooth-next/c/1f2ae3fb1cdc

You are awesome, thank you!
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