netdev - Re: [PATCH net v2] net/tls: do not free tls_rec on async operation in bpf_exec_tx

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Date: Tue, 12 Sep 2023 08:00:31 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Liu Jian <liujian56@...wei.com>
Cc: borisp@...dia.com, john.fastabend@...il.com, kuba@...nel.org,
 davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
 vfedorenko@...ek.ru, sd@...asysnail.net, netdev@...r.kernel.org
Subject: Re: [PATCH net v2] net/tls: do not free tls_rec on async operation in
 bpf_exec_tx_verdict()

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Sat, 9 Sep 2023 16:14:34 +0800 you wrote:
> I got the below warning when do fuzzing test:
> BUG: KASAN: null-ptr-deref in scatterwalk_copychunks+0x320/0x470
> Read of size 4 at addr 0000000000000008 by task kworker/u8:1/9
> 
> CPU: 0 PID: 9 Comm: kworker/u8:1 Tainted: G           OE
> Hardware name: linux,dummy-virt (DT)
> Workqueue: pencrypt_parallel padata_parallel_worker
> Call trace:
>  dump_backtrace+0x0/0x420
>  show_stack+0x34/0x44
>  dump_stack+0x1d0/0x248
>  __kasan_report+0x138/0x140
>  kasan_report+0x44/0x6c
>  __asan_load4+0x94/0xd0
>  scatterwalk_copychunks+0x320/0x470
>  skcipher_next_slow+0x14c/0x290
>  skcipher_walk_next+0x2fc/0x480
>  skcipher_walk_first+0x9c/0x110
>  skcipher_walk_aead_common+0x380/0x440
>  skcipher_walk_aead_encrypt+0x54/0x70
>  ccm_encrypt+0x13c/0x4d0
>  crypto_aead_encrypt+0x7c/0xfc
>  pcrypt_aead_enc+0x28/0x84
>  padata_parallel_worker+0xd0/0x2dc
>  process_one_work+0x49c/0xbdc
>  worker_thread+0x124/0x880
>  kthread+0x210/0x260
>  ret_from_fork+0x10/0x18
> 
> [...]

Here is the summary with links:
  - [net,v2] net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict()
    https://git.kernel.org/netdev/net/c/cfaa80c91f6f

You are awesome, thank you!
-- 
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