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authorWang Shilong <wangsl.fnst@cn.fujitsu.com>2014-01-20 16:44:21 +0800
committerChris Mason <clm@fb.com>2014-01-31 08:22:29 -0800
commitcf822f5dbaddb02a6e9a9b25e5979195f935f02e (patch)
tree2d67f05d8a98f9fffb24625270ed34237e143371 /btrfsck.h
parent0511ca4b502f1cbdd5e92c287d97c8356cdaff66 (diff)
Btrfs-progs: fix double free when deleting subvolumes
Steps to reproduce: # mkfs.btrfs -f /dev/sda8 # mount /dev/sda8 /mnt # btrfs sub create /mnt/a # touch /mnt/b # btrfs sub create /mnt/c # btrfs sub delete /mnt/* Above steps will trigger following abortion: ERROR: 'b' is not a subvolume *** Error in `btrfs': double free or corruption (out): 0x0000000002116060 *** ======= Backtrace: ========= /lib64/libc.so.6[0x3fa467cef8] /lib64/libc.so.6(closedir+0xd)[0x3fa46b846d] btrfs[0x43e608] btrfs[0x40622f] btrfs[0x403d19] btrfs[0x4062c6] btrfs[0x403f68] We try to fix it by resetting @fd && @dirstream before trying next subvolume deletion. Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Chris Mason <clm@fb.com>
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