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ZFS send fails to dump objects larger than 128PiB

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When dumping objects larger than 128PiB it's possible for do_dump() to
miscalculate the FREE_RECORD offset due to an integer overflow
condition: this prevents the receiving end from correctly restoring
the dumped object.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #6760
This commit is contained in:
LOLi
2017-10-27 01:58:38 +02:00
committed by Brian Behlendorf
parent 88f9c9396b
commit ee45fbd894
6 changed files with 109 additions and 19 deletions
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tests/runfiles/linux.run
+2 -1
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@@ -167,7 +167,8 @@ tests = ['zfs_rollback_001_pos', 'zfs_rollback_002_pos',
[tests/functional/cli_root/zfs_send]
tests = ['zfs_send_001_pos', 'zfs_send_002_pos', 'zfs_send_003_pos',
'zfs_send_004_neg', 'zfs_send_005_pos', 'zfs_send_006_pos',
'zfs_send_007_pos', 'zfs_send_encrypted', 'zfs_send_raw']
'zfs_send_007_pos', 'zfs_send_encrypted', 'zfs_send_raw',
'zfs_send_sparse']
[tests/functional/cli_root/zfs_set]
tests = ['cache_001_pos', 'cache_002_neg', 'canmount_001_pos',