NACK: [SRU][X/B][PATCH v2 0/1] CVE-2024-50006

Alice C. Munduruca alice.munduruca at canonical.com
Tue Oct 7 23:04:14 UTC 2025


Resubmit to ESM mailing list.

On 10/7/25 17:26, Alice C. Munduruca wrote:
> v2 -> Fixed the structure of the patchset to match the flat hierarchy standard.
>
> [ Impact ]
>
> A deadlock is possible in ext4 when `ext4_ind_migrate` is called
> and races with a write syscall. Calling `ext4_journal_stop` in
> the correct order mitigates this.
>
> [ Fix ]
>
> xenial: backported patch from upstream.
> bionic: cleanly cherry picked patch from upstream.
>
> [ Tests ]
>
> Compile and boot tested.
>
> [ Where problems could occur ]
>
> Given changes are relevant to ext4, it is possible that this
> could cause instabilities in filesystems under certain
> circumstances. As this is also the status quo, and changes are
> minimal, it still seems like regression potential is small.
>
> Artem Sadovnikov (1):
>    ext4: fix i_data_sem unlock order in ext4_ind_migrate()
>
>   fs/ext4/migrate.c | 2 +-
>   1 file changed, 1 insertions(+), 1 deletions(-)
>



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