Subject: Re: [PATCH net v2] net/tls: fix slab-out-of-bounds bug in decrypt_internal

From: [email-masked]
Date: Fri, 01 Apr 2022 11:00:11 +0000

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <[email-masked]>:

On Thu, 31 Mar 2022 15:04:28 +0800 you wrote:
> The memory size of tls_ctx->rx.iv for AES128-CCM is 12 setting in
> tls_set_sw_offload(). The return value of crypto_aead_ivsize()
> for "ccm(aes)" is 16. So memcpy() require 16 bytes from 12 bytes
> memory space will trigger slab-out-of-bounds bug as following:
> 
> ==================================================================
> BUG: KASAN: slab-out-of-bounds in decrypt_internal+0x385/0xc40 [tls]
> Read of size 16 at addr ffff888114e84e60 by task tls/10911
> 
> [...]

Here is the summary with links:
  - [net,v2] net/tls: fix slab-out-of-bounds bug in decrypt_internal
    https://git.kernel.org/netdev/net/c/9381fe8c849c

You are awesome, thank you!
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