linux-kernel - Re: [PATCH] bpf: Plug a potential exclusive map memory leak

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Message-Id: 
 <176377277852.2637800.13726063744889483182.git-patchwork-notify@kernel.org>
Date: Sat, 22 Nov 2025 00:52:58 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Edward Adam Davis <eadavis@...com>
Cc: syzbot+cf08c551fecea9fd1320@...kaller.appspotmail.com, andrii@...nel.org,
 ast@...nel.org, bpf@...r.kernel.org, daniel@...earbox.net, eddyz87@...il.com,
 haoluo@...gle.com, john.fastabend@...il.com, jolsa@...nel.org,
 kpsingh@...nel.org, linux-kernel@...r.kernel.org, martin.lau@...ux.dev,
 sdf@...ichev.me, song@...nel.org, syzkaller-bugs@...glegroups.com,
 yonghong.song@...ux.dev
Subject: Re: [PATCH] bpf: Plug a potential exclusive map memory leak

Hello:

This patch was applied to bpf/bpf.git (master)
by Alexei Starovoitov <ast@...nel.org>:

On Sun, 16 Nov 2025 22:58:13 +0800 you wrote:
> When excl_prog_hash is 0 and excl_prog_hash_size is non-zero, the map also
> needs to be freed. Otherwise, the map memory will not be reclaimed, just
> like the memory leak problem reported by syzbot [1].
> 
> syzbot reported:
> BUG: memory leak
>   backtrace (crc 7b9fb9b4):
>     map_create+0x322/0x11e0 kernel/bpf/syscall.c:1512
>     __sys_bpf+0x3556/0x3610 kernel/bpf/syscall.c:6131
> 
> [...]

Here is the summary with links:
  - bpf: Plug a potential exclusive map memory leak
    https://git.kernel.org/bpf/bpf/c/22d70d400556

You are awesome, thank you!
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