6.12-stable review patch. If anyone has any objections, please let me know.
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From: Chao Yu chao@kernel.org
[ Upstream commit 0fe1c6bec54ea68ed8c987b3890f2296364e77bb ]
Should cast type of folio->index from pgoff_t to loff_t to avoid overflow while left shift operation.
Fixes: 3265d3db1f16 ("f2fs: support partial truncation on compressed inode") Signed-off-by: Chao Yu chao@kernel.org Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org [ Modification: Using rpages[i]->index instead of folio->index due to it was changed since commit:1cda5bc0b2fe ("f2fs: Use a folio in f2fs_truncate_partial_cluster()") on 6.14 ] Signed-off-by: Rajani Kantha 681739313@139.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/f2fs/compress.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index b05bb7bfa14c5..fcd21bb060cd4 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -1236,7 +1236,7 @@ int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock) int i;
for (i = cluster_size - 1; i >= 0; i--) { - loff_t start = rpages[i]->index << PAGE_SHIFT; + loff_t start = (loff_t)rpages[i]->index << PAGE_SHIFT;
if (from <= start) { zero_user_segment(rpages[i], 0, PAGE_SIZE);