Re: [moderation/CI] Re: bpf: Fix use-after-free on mm_struct in bpf_find_vma()

Pimyn Girgis <[email protected]>
Newsgroups dev.linux.lists.syzbot
Message-ID <CAJWNTGwbZMNBXpH3ipgv3+JrffFFXa+wJBa8kyucU4KAnvgBPA@mail.gmail.com>
#syz upstream


On Tue, Jun 30, 2026 at 5:59 AM syzbot ci
<[email protected]> wrote:
>
> syzbot ci has tested the following series
>
> [v5] bpf: Fix use-after-free on mm_struct in bpf_find_vma()
> https://lore.kernel.org/all/[email protected]
> * [PATCH bpf-next v5] bpf: Fix use-after-free on mm_struct in bpf_find_vma()
>
> and found the following issue:
> kernel build error
>
> Full report is available here:
> https://ci.syzbot.org/series/f0ce67c9-2c09-418c-bbe2-c698246e9c7f
>
> ***
>
> kernel build error
>
> tree:      bpf-next
> URL:       https://kernel.googlesource.com/pub/scm/linux/kernel/git/bpf/bpf-next.git
> base:      53435562a725962e4de0c29653223129ba11643a
> arch:      amd64
> compiler:  Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6
> config:    https://ci.syzbot.org/builds/a434cf48-2810-46a3-bb75-064be88b96be/config
>
> kernel/bpf/task_iter.c:1017:3: error: call to undeclared function 'bpf_iter_mmput_async'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>
> ***
>
> If these findings have caused you to resend the series or submit a
> separate fix, please add the following tag to your commit message:
>   Tested-by: [email protected]
>
> ---
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>
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>
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-- 
Ⲡⲟⲓⲙⲏⲛ Ⲅⲉⲱⲣⲅⲓⲟⲥ - Pimyn Girgis
Software Engineer
Kernel Dynamic Analysis
[email protected]
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