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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-06 12:19:36 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-06 12:19:36 -0800 |
commit | 3ee65c0f0778b8fa95381cd7676cde2c03e0f889 (patch) | |
tree | f010b478534ff183e3323a06f96c545b1051cc6d /fs/btrfs/tree-checker.c | |
parent | f81664f760046ac9b5731d9340f9e48e70ea7c8d (diff) | |
parent | ca93e44bfb5fd7996b76f0f544999171f647f93b (diff) |
Merge tag 'for-5.17-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few more fixes for various problems that have user visible effects
or seem to be urgent:
- fix corruption when combining DIO and non-blocking io_uring over
multiple extents (seen on MariaDB)
- fix relocation crash due to premature return from commit
- fix quota deadlock between rescan and qgroup removal
- fix item data bounds checks in tree-checker (found on a fuzzed
image)
- fix fsync of prealloc extents after EOF
- add missing run of delayed items after unlink during log replay
- don't start relocation until snapshot drop is finished
- fix reversed condition for subpage writers locking
- fix warning on page error"
* tag 'for-5.17-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fallback to blocking mode when doing async dio over multiple extents
btrfs: add missing run of delayed items after unlink during log replay
btrfs: qgroup: fix deadlock between rescan worker and remove qgroup
btrfs: fix relocation crash due to premature return from btrfs_commit_transaction()
btrfs: do not start relocation until in progress drops are done
btrfs: tree-checker: use u64 for item data end to avoid overflow
btrfs: do not WARN_ON() if we have PageError set
btrfs: fix lost prealloc extents beyond eof after full fsync
btrfs: subpage: fix a wrong check on subpage->writers
Diffstat (limited to 'fs/btrfs/tree-checker.c')
-rw-r--r-- | fs/btrfs/tree-checker.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c index 9fd145f1c4bc..aae5697dde32 100644 --- a/fs/btrfs/tree-checker.c +++ b/fs/btrfs/tree-checker.c @@ -1682,6 +1682,7 @@ static int check_leaf(struct extent_buffer *leaf, bool check_item_data) */ for (slot = 0; slot < nritems; slot++) { u32 item_end_expected; + u64 item_data_end; int ret; btrfs_item_key_to_cpu(leaf, &key, slot); @@ -1696,6 +1697,8 @@ static int check_leaf(struct extent_buffer *leaf, bool check_item_data) return -EUCLEAN; } + item_data_end = (u64)btrfs_item_offset(leaf, slot) + + btrfs_item_size(leaf, slot); /* * Make sure the offset and ends are right, remember that the * item data starts at the end of the leaf and grows towards the @@ -1706,11 +1709,10 @@ static int check_leaf(struct extent_buffer *leaf, bool check_item_data) else item_end_expected = btrfs_item_offset(leaf, slot - 1); - if (unlikely(btrfs_item_data_end(leaf, slot) != item_end_expected)) { + if (unlikely(item_data_end != item_end_expected)) { generic_err(leaf, slot, - "unexpected item end, have %u expect %u", - btrfs_item_data_end(leaf, slot), - item_end_expected); + "unexpected item end, have %llu expect %u", + item_data_end, item_end_expected); return -EUCLEAN; } @@ -1719,12 +1721,10 @@ static int check_leaf(struct extent_buffer *leaf, bool check_item_data) * just in case all the items are consistent to each other, but * all point outside of the leaf. */ - if (unlikely(btrfs_item_data_end(leaf, slot) > - BTRFS_LEAF_DATA_SIZE(fs_info))) { + if (unlikely(item_data_end > BTRFS_LEAF_DATA_SIZE(fs_info))) { generic_err(leaf, slot, - "slot end outside of leaf, have %u expect range [0, %u]", - btrfs_item_data_end(leaf, slot), - BTRFS_LEAF_DATA_SIZE(fs_info)); + "slot end outside of leaf, have %llu expect range [0, %u]", + item_data_end, BTRFS_LEAF_DATA_SIZE(fs_info)); return -EUCLEAN; } |