[PATCH v3 0/4] ext4: fix two bug_on in __es_tree_search

Baokun Li
2022-10-26T04:01:26Z

V1->V2:
In patch 2, when imode is not set to S_IFREG, the inode also needs
to be initialized. Otherwise, the check can be bypassed, causing
the BUG_ON. (found in the review by yangerkun)
V2->V3:
a. add EXT4_IGET_BAD flag to prevent unexpected bad inode.
b. check bad quota inode in vfs_setup_quota_inode() instead of in
ext4_quota_enable() for more generic approach to this problem.
c. add helper to check quota inums.

Baokun Li (4):
ext4: fix bug_on in __es_tree_search caused by bad quota inode
ext4: add helper to check quota inums
ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode
ext4: fix bug_on in __es_tree_search caused by bad boot loader inode

fs/ext4/ext4.h | 3 ++-
fs/ext4/inode.c | 8 +++++++-
fs/ext4/ioctl.c | 5 +++--
fs/ext4/super.c | 28 +++++++++++++++++++++++++---
fs/quota/dquot.c | 2 ++
5 files changed, 39 insertions(+), 7 deletions(-)

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2.31.1