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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2025-03-16 16:08:41 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2025-03-17 14:23:49 -0400 |
| commit | c0836924b19ae84ad95d7ec97455c96f61b81201 (patch) | |
| tree | e48afe4496a7e6ef8c7ec6a1d5d14064f69747ba /libbcachefs/fs-io-buffered.c | |
| parent | f42ee45c6e6409ad7c971aa37aef69b97d761006 (diff) | |
Update bcachefs sources to 4d28432bcc5f bcachefs: Validate bch_sb.offset field
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'libbcachefs/fs-io-buffered.c')
| -rw-r--r-- | libbcachefs/fs-io-buffered.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libbcachefs/fs-io-buffered.c b/libbcachefs/fs-io-buffered.c index 881b3051..5ab1c73c 100644 --- a/libbcachefs/fs-io-buffered.c +++ b/libbcachefs/fs-io-buffered.c @@ -117,6 +117,9 @@ static int readpage_bio_extend(struct btree_trans *trans, unsigned order = ilog2(rounddown_pow_of_two(sectors_remaining) / PAGE_SECTORS); + /* ensure proper alignment */ + order = min(order, __ffs(folio_offset|BIT(31))); + folio = xa_load(&iter->mapping->i_pages, folio_offset); if (folio && !xa_is_value(folio)) break; |