Josef Bacik
2013-Mar-28 14:27 UTC
[PATCH] Btrfs-progs: fix segfault in fsck if the chunk tree is bogus
I made open_ctree fail if the chunk tree couldn''t be open, which means
that fsck
now segfaults if it can''t open the chunk tree. So fix fsck to check
the fs_info
we get back from open_ctree_fsinfo to make sure it''s valid and exit if
it''s not
instead of segfaulting. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
---
cmds-check.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/cmds-check.c b/cmds-check.c
index 35e9177..eef959e 100644
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -3642,6 +3642,11 @@ int cmd_check(int argc, char **argv)
}
info = open_ctree_fs_info(argv[optind], bytenr, rw, 1);
+ if (!info) {
+ fprintf(stderr, "Couldn''t open file system\n");
+ return -EIO;
+ }
+
uuid_unparse(info->super_copy.fsid, uuidbuf);
printf("Checking filesystem on %s\nUUID: %s\n", argv[optind],
uuidbuf);
--
1.7.7.6
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