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Subjectmemory leak in bio_clone_fast
From
Hello,

syzbot found the following crash on:

HEAD commit: d45331b0 Linux 5.3-rc4
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1651e6d2600000
kernel config: https://syzkaller.appspot.com/x/.config?x=6c5e70dcab57c6af
dashboard link: https://syzkaller.appspot.com/bug?extid=0265846a0cb9a0547905
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12c9c336600000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1766156a600000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+0265846a0cb9a0547905@syzkaller.appspotmail.com

executing program
executing program
executing program
executing program
BUG: memory leak
unreferenced object 0xffff8881226da6c0 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 15.840s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da600 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 15.840s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da540 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 15.840s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da6c0 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 16.750s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da600 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 16.750s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da540 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 16.750s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da6c0 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 17.650s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da600 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 17.650s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da540 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 17.650s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da6c0 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 18.550s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da600 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 18.550s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da540 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 18.550s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da6c0 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 19.450s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da600 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 19.450s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da540 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 19.450s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da6c0 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 19.510s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da600 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 19.510s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da540 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 19.510s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da6c0 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 19.560s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da600 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 19.560s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862

BUG: memory leak
unreferenced object 0xffff8881226da540 (size 192):
comm "syz-executor332", pid 6977, jiffies 4294941214 (age 19.560s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 f0 bc 28 81 88 ff ff ...........(....
01 c8 60 00 02 0b 00 00 00 00 00 00 00 00 00 00 ..`.............
backtrace:
[<00000000b06a638e>] kmemleak_alloc_recursive
include/linux/kmemleak.h:43 [inline]
[<00000000b06a638e>] slab_post_alloc_hook mm/slab.h:522 [inline]
[<00000000b06a638e>] slab_alloc mm/slab.c:3319 [inline]
[<00000000b06a638e>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
[<00000000950a289d>] mempool_alloc_slab+0x1e/0x30 mm/mempool.c:513
[<00000000bfcc27e2>] mempool_alloc+0x64/0x1b0 mm/mempool.c:393
[<00000000cdf95a4a>] bio_alloc_bioset+0x180/0x2c0 block/bio.c:477
[<00000000b239bb68>] bio_clone_fast+0x25/0x90 block/bio.c:609
[<000000005d58c2dc>] bio_split+0x4a/0xd0 block/bio.c:1856
[<00000000ab943734>] blk_bio_segment_split block/blk-merge.c:250
[inline]
[<00000000ab943734>] __blk_queue_split+0x355/0x730 block/blk-merge.c:272
[<00000000e702c0ac>] blk_mq_make_request+0xb0/0x890 block/blk-mq.c:1943
[<000000003c89773a>] generic_make_request block/blk-core.c:1052 [inline]
[<000000003c89773a>] generic_make_request+0xf6/0x4a0
block/blk-core.c:994
[<00000000a4dcaf78>] submit_bio+0x5a/0x1e0 block/blk-core.c:1163
[<000000003e1ce7f8>] __blkdev_direct_IO fs/block_dev.c:459 [inline]
[<000000003e1ce7f8>] blkdev_direct_IO+0x2b3/0x6d0 fs/block_dev.c:515
[<0000000087ec76a4>] generic_file_direct_write+0xb0/0x1a0
mm/filemap.c:3230
[<00000000ff259b44>] __generic_file_write_iter+0xec/0x230
mm/filemap.c:3413
[<00000000223d9b6c>] blkdev_write_iter fs/block_dev.c:2026 [inline]
[<00000000223d9b6c>] blkdev_write_iter+0xbe/0x160 fs/block_dev.c:2003
[<000000003c4a5c94>] call_write_iter include/linux/fs.h:1870 [inline]
[<000000003c4a5c94>] aio_write+0x10b/0x1d0 fs/aio.c:1583
[<00000000581f0c84>] __io_submit_one fs/aio.c:1815 [inline]
[<00000000581f0c84>] io_submit_one+0x59b/0xe50 fs/aio.c:1862



---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this bug report. See:
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syzbot can test patches for this bug, for details see:
https://goo.gl/tpsmEJ#testing-patches

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