linux-kernel - Re: [PATCH v2 bpf] bpf: Fix memory leak in __lookup

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Message-Id: 
 <176063640651.1836402.1494059105577027083.git-patchwork-notify@kernel.org>
Date: Thu, 16 Oct 2025 17:40:06 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Shardul Bankar <shardulsb08@...il.com>
Cc: bpf@...r.kernel.org, ast@...nel.org, daniel@...earbox.net,
 andrii@...nel.org, martin.lau@...ux.dev, eddyz87@...il.com, song@...nel.org,
 yonghong.song@...ux.dev, john.fastabend@...il.com, kpsingh@...nel.org,
 sdf@...ichev.me, haoluo@...gle.com, jolsa@...nel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 bpf] bpf: Fix memory leak in __lookup_instance error
 path

Hello:

This patch was applied to bpf/bpf.git (master)
by Martin KaFai Lau <martin.lau@...nel.org>:

On Thu, 16 Oct 2025 12:03:30 +0530 you wrote:
> When __lookup_instance() allocates a func_instance structure but fails
> to allocate the must_write_set array, it returns an error without freeing
> the previously allocated func_instance. This causes a memory leak of 192
> bytes (sizeof(struct func_instance)) each time this error path is triggered.
> 
> Fix by freeing 'result' on must_write_set allocation failure.
> 
> [...]

Here is the summary with links:
  - [v2,bpf] bpf: Fix memory leak in __lookup_instance error path
    https://git.kernel.org/bpf/bpf/c/8adc4705e46c

You are awesome, thank you!
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