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Fix use after free in zfsctl_snapshot_unmount()

This commit is contained in:
Stian Ellingsen 2016-10-06 19:53:27 +02:00 committed by Brian Behlendorf
parent 42dae6d7a6
commit d71db895a1
1 changed files with 1 additions and 1 deletions
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2
module/zfs/zfs_ctldir.c
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@ -1032,10 +1032,10 @@ zfsctl_snapshot_unmount(char *snapname, int flags)
argv[2] = kmem_asprintf(SET_UNMOUNT_CMD, argv[2] = kmem_asprintf(SET_UNMOUNT_CMD,
flags & MNT_FORCE ? "-f " : "", se->se_path); flags & MNT_FORCE ? "-f " : "", se->se_path);
zfsctl_snapshot_rele(se);
dprintf("unmount; path=%s\n", se->se_path); dprintf("unmount; path=%s\n", se->se_path);
error = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC); error = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
strfree(argv[2]); strfree(argv[2]);
zfsctl_snapshot_rele(se);
/* /*