On Thu, 29 Aug 2024 15:22:09 +0000, Artem Sadovnikov wrote:
> Fuzzing reports a possible deadlock in jbd2_log_wait_commit.
>
> This issue is triggered when an EXT4_IOC_MIGRATE ioctl is set to require
> synchronous updates because the file descriptor is opened with O_SYNC.
> This can lead to the jbd2_journal_stop() function calling
> jbd2_might_wait_for_commit(), potentially causing a deadlock if the
> EXT4_IOC_MIGRATE call races with a write(2) system call.
>
> [...]
Applied, thanks!
[1/1] ext4: fix i_data_sem unlock order in ext4_ind_migrate()
commit: cc749e61c011c255d81b192a822db650c68b313f
Best regards,
--
Theodore Ts'o <tytso@xxxxxxx>
