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We need to wait until after having done a zfs_enter() to load some fields from the zfsvfs structure. Otherwise a use-after-free is possible in the face of a concurrent rollback. Other functions in this file are careful to avoid this bug, I believe this is the only instance. Reviewed-by: Brian Atkinson <batkinson@lanl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Mark Johnston <markj@FreeBSD.org> Closes #15752 |
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