memory leak in __insert

Title	Replies (including bot)	Last reply
[PATCH v4 0/3] Fix two issues about bigalloc feature	9 (9)	2022/12/09 06:04
[PATCH v3 0/3] Fix two issues about bigalloc feature	9 (9)	2022/12/08 22:54
[PATCH v2 0/3] Fix two issues about bigalloc feature	9 (9)	2022/12/03 02:34
[PATCH 0/3] Fix two issues about bigalloc feature	6 (6)	2022/11/21 11:14
[PATCH] ext4: fix possible memory leak when enable bigalloc feature	5 (5)	2022/11/14 11:07
[syzbot] memory leak in __insert_pending	0 (1)	2022/11/03 22:14

BUG: memory leak unreferenced object 0xffff888111c8a1e0 (size 32): comm "syz-executor114", pid 3614, jiffies 4294956785 (age 12.710s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8178729a>] __insert_pending.isra.0+0xaa/0xf0 fs/ext4/extents_status.c:1895 [<ffffffff8178b044>] ext4_es_insert_delayed_block+0x224/0x230 fs/ext4/extents_status.c:2018 [<ffffffff817a7ae5>] ext4_insert_delayed_block fs/ext4/inode.c:1704 [inline] [<ffffffff817a7ae5>] ext4_da_map_blocks fs/ext4/inode.c:1796 [inline] [<ffffffff817a7ae5>] ext4_da_get_block_prep+0x3a5/0x7e0 fs/ext4/inode.c:1860 [<ffffffff81653016>] __block_write_begin_int+0x1d6/0x9d0 fs/buffer.c:1991 [<ffffffff8179cf7b>] ext4_da_convert_inline_data_to_extent fs/ext4/inline.c:877 [inline] [<ffffffff8179cf7b>] ext4_da_write_inline_data_begin+0x39b/0xb10 fs/ext4/inline.c:939 [<ffffffff817b0307>] ext4_da_write_begin+0x477/0x4e0 fs/ext4/inode.c:2986 [<ffffffff8148755f>] generic_perform_write+0xff/0x2b0 mm/filemap.c:3753 [<ffffffff8178c54b>] ext4_buffered_write_iter+0xbb/0x1d0 fs/ext4/file.c:285 [<ffffffff8178c71f>] ext4_file_write_iter+0xbf/0xbf0 fs/ext4/file.c:700 [<ffffffff815d8517>] call_write_iter include/linux/fs.h:2191 [inline] [<ffffffff815d8517>] do_iter_readv_writev+0x147/0x210 fs/read_write.c:735 [<ffffffff815d9afc>] do_iter_write+0xdc/0x300 fs/read_write.c:861 [<ffffffff815d9d59>] vfs_iter_write+0x39/0x60 fs/read_write.c:902 [<ffffffff8163eb44>] iter_file_splice_write+0x434/0x660 fs/splice.c:686 [<ffffffff8163c57b>] do_splice_from fs/splice.c:764 [inline] [<ffffffff8163c57b>] direct_splice_actor+0x4b/0x70 fs/splice.c:931 [<ffffffff8163cd19>] splice_direct_to_actor+0x149/0x350 fs/splice.c:886 [<ffffffff8163d008>] do_splice_direct+0xe8/0x150 fs/splice.c:974 BUG: memory leak unreferenced object 0xffff888111c8a260 (size 32): comm "syz-executor114", pid 3618, jiffies 4294957317 (age 7.390s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8178729a>] __insert_pending.isra.0+0xaa/0xf0 fs/ext4/extents_status.c:1895 [<ffffffff8178b044>] ext4_es_insert_delayed_block+0x224/0x230 fs/ext4/extents_status.c:2018 [<ffffffff817a7ae5>] ext4_insert_delayed_block fs/ext4/inode.c:1704 [inline] [<ffffffff817a7ae5>] ext4_da_map_blocks fs/ext4/inode.c:1796 [inline] [<ffffffff817a7ae5>] ext4_da_get_block_prep+0x3a5/0x7e0 fs/ext4/inode.c:1860 [<ffffffff81653016>] __block_write_begin_int+0x1d6/0x9d0 fs/buffer.c:1991 [<ffffffff8179cf7b>] ext4_da_convert_inline_data_to_extent fs/ext4/inline.c:877 [inline] [<ffffffff8179cf7b>] ext4_da_write_inline_data_begin+0x39b/0xb10 fs/ext4/inline.c:939 [<ffffffff817b0307>] ext4_da_write_begin+0x477/0x4e0 fs/ext4/inode.c:2986 [<ffffffff8148755f>] generic_perform_write+0xff/0x2b0 mm/filemap.c:3753 [<ffffffff8178c54b>] ext4_buffered_write_iter+0xbb/0x1d0 fs/ext4/file.c:285 [<ffffffff8178c71f>] ext4_file_write_iter+0xbf/0xbf0 fs/ext4/file.c:700 [<ffffffff815d8517>] call_write_iter include/linux/fs.h:2191 [inline] [<ffffffff815d8517>] do_iter_readv_writev+0x147/0x210 fs/read_write.c:735 [<ffffffff815d9afc>] do_iter_write+0xdc/0x300 fs/read_write.c:861 [<ffffffff815d9d59>] vfs_iter_write+0x39/0x60 fs/read_write.c:902 [<ffffffff8163eb44>] iter_file_splice_write+0x434/0x660 fs/splice.c:686 [<ffffffff8163c57b>] do_splice_from fs/splice.c:764 [inline] [<ffffffff8163c57b>] direct_splice_actor+0x4b/0x70 fs/splice.c:931 [<ffffffff8163cd19>] splice_direct_to_actor+0x149/0x350 fs/splice.c:886 [<ffffffff8163d008>] do_splice_direct+0xe8/0x150 fs/splice.c:974