memory leak in io_submit_sqes (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 7a7fd0de Merge branch 'kmap-conversion-for-5.12' of git://..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=152ae9cad00000
kernel config: https://syzkaller.appspot.com/x/.config?x=c66ab79a61c783f3
dashboard link: https://syzkaller.appspot.com/bug?extid=91b4b56ead187d35c9d3
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=148cf242d00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=172bb6dad00000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+91b4b5...@syzkaller.appspotmail.com

executing program
executing program
executing program
executing program
executing program
BUG: memory leak
unreferenced object 0xffff88810f335800 (size 232):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 19.500s)
hex dump (first 32 bytes):
00 62 7e 01 81 88 ff ff 00 00 00 00 00 00 00 00 .b~.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0300 (size 256):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 19.500s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888110916200 (size 232):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 19.490s)
hex dump (first 32 bytes):
00 fa b7 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0200 (size 256):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 19.490s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8a2800 (size 232):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 19.490s)
hex dump (first 32 bytes):
00 5c 33 0f 81 88 ff ff 00 00 00 00 00 00 00 00 .\3.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0100 (size 256):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 19.490s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f335800 (size 232):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 20.620s)
hex dump (first 32 bytes):
00 62 7e 01 81 88 ff ff 00 00 00 00 00 00 00 00 .b~.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0300 (size 256):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 20.620s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888110916200 (size 232):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 20.610s)
hex dump (first 32 bytes):
00 fa b7 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0200 (size 256):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 20.610s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8a2800 (size 232):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 20.610s)
hex dump (first 32 bytes):
00 5c 33 0f 81 88 ff ff 00 00 00 00 00 00 00 00 .\3.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0100 (size 256):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 20.610s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f335800 (size 232):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 21.750s)
hex dump (first 32 bytes):
00 62 7e 01 81 88 ff ff 00 00 00 00 00 00 00 00 .b~.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0300 (size 256):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 21.750s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888110916200 (size 232):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 21.740s)
hex dump (first 32 bytes):
00 fa b7 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0200 (size 256):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 21.740s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8a2800 (size 232):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 21.740s)
hex dump (first 32 bytes):
00 5c 33 0f 81 88 ff ff 00 00 00 00 00 00 00 00 .\3.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0100 (size 256):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 21.740s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f335800 (size 232):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 22.860s)
hex dump (first 32 bytes):
00 62 7e 01 81 88 ff ff 00 00 00 00 00 00 00 00 .b~.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0300 (size 256):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 22.860s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888110916200 (size 232):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 22.850s)
hex dump (first 32 bytes):
00 fa b7 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0200 (size 256):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 22.850s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8a2800 (size 232):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 22.850s)
hex dump (first 32 bytes):
00 5c 33 0f 81 88 ff ff 00 00 00 00 00 00 00 00 .\3.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0100 (size 256):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 22.850s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f335800 (size 232):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 23.970s)
hex dump (first 32 bytes):
00 62 7e 01 81 88 ff ff 00 00 00 00 00 00 00 00 .b~.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0300 (size 256):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 23.970s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888110916200 (size 232):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 23.960s)
hex dump (first 32 bytes):
00 fa b7 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0200 (size 256):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 23.960s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8a2800 (size 232):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 23.960s)
hex dump (first 32 bytes):
00 5c 33 0f 81 88 ff ff 00 00 00 00 00 00 00 00 .\3.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0100 (size 256):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 23.960s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f335800 (size 232):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 25.110s)
hex dump (first 32 bytes):
00 62 7e 01 81 88 ff ff 00 00 00 00 00 00 00 00 .b~.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0300 (size 256):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 25.110s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888110916200 (size 232):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 25.100s)
hex dump (first 32 bytes):
00 fa b7 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0200 (size 256):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 25.100s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8a2800 (size 232):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 25.100s)
hex dump (first 32 bytes):
00 5c 33 0f 81 88 ff ff 00 00 00 00 00 00 00 00 .\3.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0100 (size 256):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 25.100s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f335800 (size 232):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 26.240s)
hex dump (first 32 bytes):
00 62 7e 01 81 88 ff ff 00 00 00 00 00 00 00 00 .b~.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0300 (size 256):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 26.240s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888110916200 (size 232):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 26.230s)
hex dump (first 32 bytes):
00 fa b7 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0200 (size 256):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 26.230s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8a2800 (size 232):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 26.230s)
hex dump (first 32 bytes):
00 5c 33 0f 81 88 ff ff 00 00 00 00 00 00 00 00 .\3.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0100 (size 256):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 26.230s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f335800 (size 232):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 27.390s)
hex dump (first 32 bytes):
00 62 7e 01 81 88 ff ff 00 00 00 00 00 00 00 00 .b~.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0300 (size 256):
comm "syz-executor079", pid 8386, jiffies 4294945178 (age 27.390s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888110916200 (size 232):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 27.380s)
hex dump (first 32 bytes):
00 fa b7 0f 81 88 ff ff 00 00 00 00 00 00 00 00 ................
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0200 (size 256):
comm "syz-executor079", pid 8398, jiffies 4294945179 (age 27.380s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8a2800 (size 232):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 27.380s)
hex dump (first 32 bytes):
00 5c 33 0f 81 88 ff ff 00 00 00 00 00 00 00 00 .\3.............
f0 98 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .._.............
backtrace:
[<000000008b690cb4>] io_alloc_req fs/io_uring.c:1680 [inline]
[<000000008b690cb4>] io_submit_sqes+0x803/0x2340 fs/io_uring.c:6553
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810f8c0100 (size 256):
comm "syz-executor079", pid 8404, jiffies 4294945179 (age 27.380s)
hex dump (first 32 bytes):
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 00 ................
backtrace:
[<00000000e2e0a7ef>] kmalloc include/linux/slab.h:559 [inline]
[<00000000e2e0a7ef>] __io_alloc_async_data fs/io_uring.c:3104 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw fs/io_uring.c:3123 [inline]
[<00000000e2e0a7ef>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3116
[<0000000066815854>] io_read+0x1fe/0x540 fs/io_uring.c:3299
[<00000000cfdf0aa9>] io_issue_sqe+0xb6/0x1c50 fs/io_uring.c:5957
[<00000000ae810f5a>] __io_queue_sqe+0x118/0x5c0 fs/io_uring.c:6226
[<000000001fd21177>] io_queue_sqe+0x2af/0x4d0 fs/io_uring.c:6282
[<00000000a078f546>] io_submit_sqe fs/io_uring.c:6452 [inline]
[<00000000a078f546>] io_submit_sqes+0x2016/0x2340 fs/io_uring.c:6566
[<000000007cfdba48>] __do_sys_io_uring_enter+0x86f/0x1110 fs/io_uring.c:9175
[<00000000d605a0db>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005fafd51e>] entry_SYSCALL_64_after_hwframe+0x44/0xae



---
This report 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 syzk...@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches

[Jens Axboe]

On 3/3/21 11:39 AM, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:

#syz test: git://git.kernel.dk/linux-block io_uring-5.12

--
Jens Axboe

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
memory leak in io_submit_sqes

BUG: memory leak
unreferenced object 0xffff88811043cc00 (size 232):
comm "syz-executor.0", pid 10595, jiffies 4294944973 (age 10.850s)

hex dump (first 32 bytes):

00 f0 40 10 81 88 ff ff 00 00 00 00 00 00 00 00 ..@.............
00 7a 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .z_.............
backtrace:
[<000000005cfa592c>] io_alloc_req fs/io_uring.c:1610 [inline]
[<000000005cfa592c>] io_submit_sqes+0x7ae/0x22f0 fs/io_uring.c:6518
[<00000000bffe23f4>] __do_sys_io_uring_enter+0x857/0x10c0 fs/io_uring.c:9108
[<000000002e2222f2>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005e5fec34>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888124dd1300 (size 256):
comm "syz-executor.0", pid 10595, jiffies 4294944973 (age 10.850s)

hex dump (first 32 bytes):
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 00 ................
backtrace:

[<0000000099ea7aac>] kmalloc include/linux/slab.h:559 [inline]
[<0000000099ea7aac>] __io_alloc_async_data fs/io_uring.c:3060 [inline]
[<0000000099ea7aac>] io_setup_async_rw fs/io_uring.c:3079 [inline]
[<0000000099ea7aac>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3072
[<0000000002d951db>] io_read+0x1fe/0x560 fs/io_uring.c:3257
[<00000000ca56953d>] io_issue_sqe+0x18d/0x23e0 fs/io_uring.c:5933
[<00000000a5a737fd>] __io_queue_sqe+0x9a/0x4f0 fs/io_uring.c:6200
[<00000000af920b23>] io_queue_sqe+0x361/0x560 fs/io_uring.c:6253
[<00000000deecb73d>] io_submit_sqe fs/io_uring.c:6417 [inline]
[<00000000deecb73d>] io_submit_sqes+0x1fc1/0x22f0 fs/io_uring.c:6531
[<00000000bffe23f4>] __do_sys_io_uring_enter+0x857/0x10c0 fs/io_uring.c:9108
[<000000002e2222f2>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005e5fec34>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810d21fa00 (size 232):
comm "syz-executor.0", pid 10613, jiffies 4294944997 (age 10.610s)

hex dump (first 32 bytes):

00 47 b1 11 81 88 ff ff 00 00 00 00 00 00 00 00 .G..............
00 7a 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .z_.............
backtrace:
[<000000005cfa592c>] io_alloc_req fs/io_uring.c:1610 [inline]
[<000000005cfa592c>] io_submit_sqes+0x7ae/0x22f0 fs/io_uring.c:6518
[<00000000bffe23f4>] __do_sys_io_uring_enter+0x857/0x10c0 fs/io_uring.c:9108
[<000000002e2222f2>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005e5fec34>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888124e98500 (size 256):
comm "syz-executor.0", pid 10613, jiffies 4294944997 (age 10.610s)

hex dump (first 32 bytes):
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 00 ................
backtrace:

[<0000000099ea7aac>] kmalloc include/linux/slab.h:559 [inline]
[<0000000099ea7aac>] __io_alloc_async_data fs/io_uring.c:3060 [inline]
[<0000000099ea7aac>] io_setup_async_rw fs/io_uring.c:3079 [inline]
[<0000000099ea7aac>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3072
[<0000000002d951db>] io_read+0x1fe/0x560 fs/io_uring.c:3257
[<00000000ca56953d>] io_issue_sqe+0x18d/0x23e0 fs/io_uring.c:5933
[<00000000a5a737fd>] __io_queue_sqe+0x9a/0x4f0 fs/io_uring.c:6200
[<00000000af920b23>] io_queue_sqe+0x361/0x560 fs/io_uring.c:6253
[<00000000deecb73d>] io_submit_sqe fs/io_uring.c:6417 [inline]
[<00000000deecb73d>] io_submit_sqes+0x1fc1/0x22f0 fs/io_uring.c:6531
[<00000000bffe23f4>] __do_sys_io_uring_enter+0x857/0x10c0 fs/io_uring.c:9108
[<000000002e2222f2>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005e5fec34>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff88810edcff00 (size 232):
comm "syz-executor.0", pid 10633, jiffies 4294945010 (age 10.480s)

hex dump (first 32 bytes):

00 99 b3 11 81 88 ff ff 00 00 00 00 00 00 00 00 ................
00 7a 5f 81 ff ff ff ff 00 00 00 00 00 00 00 00 .z_.............
backtrace:
[<000000005cfa592c>] io_alloc_req fs/io_uring.c:1610 [inline]
[<000000005cfa592c>] io_submit_sqes+0x7ae/0x22f0 fs/io_uring.c:6518
[<00000000bffe23f4>] __do_sys_io_uring_enter+0x857/0x10c0 fs/io_uring.c:9108
[<000000002e2222f2>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005e5fec34>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff888124c06300 (size 256):
comm "syz-executor.0", pid 10633, jiffies 4294945010 (age 10.480s)

hex dump (first 32 bytes):
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 00 ................
backtrace:

[<0000000099ea7aac>] kmalloc include/linux/slab.h:559 [inline]
[<0000000099ea7aac>] __io_alloc_async_data fs/io_uring.c:3060 [inline]
[<0000000099ea7aac>] io_setup_async_rw fs/io_uring.c:3079 [inline]
[<0000000099ea7aac>] io_setup_async_rw+0xa3/0x1e0 fs/io_uring.c:3072
[<0000000002d951db>] io_read+0x1fe/0x560 fs/io_uring.c:3257
[<00000000ca56953d>] io_issue_sqe+0x18d/0x23e0 fs/io_uring.c:5933
[<00000000a5a737fd>] __io_queue_sqe+0x9a/0x4f0 fs/io_uring.c:6200
[<00000000af920b23>] io_queue_sqe+0x361/0x560 fs/io_uring.c:6253
[<00000000deecb73d>] io_submit_sqe fs/io_uring.c:6417 [inline]
[<00000000deecb73d>] io_submit_sqes+0x1fc1/0x22f0 fs/io_uring.c:6531
[<00000000bffe23f4>] __do_sys_io_uring_enter+0x857/0x10c0 fs/io_uring.c:9108
[<000000002e2222f2>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000005e5fec34>] entry_SYSCALL_64_after_hwframe+0x44/0xae



Tested on:

commit: 4f766d6f io_uring: ensure that threads freeze on suspend
git tree: git://git.kernel.dk/linux-block io_uring-5.12
console output: https://syzkaller.appspot.com/x/log.txt?x=143ce02ad00000
kernel config: https://syzkaller.appspot.com/x/.config?x=c43bda1f1543d72b
dashboard link: https://syzkaller.appspot.com/bug?extid=91b4b56ead187d35c9d3
compiler:

[Jens Axboe]

#syz test: git://git.kernel.dk/linux-block leak

--
Jens Axboe

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+91b4b5...@syzkaller.appspotmail.com

Tested on:

commit: e64db150 io-wq: ensure all pending work is canceled on exit
git tree: git://git.kernel.dk/linux-block leak

kernel config: https://syzkaller.appspot.com/x/.config?x=c43bda1f1543d72b
dashboard link: https://syzkaller.appspot.com/bug?extid=91b4b56ead187d35c9d3
compiler:

Note: testing is done by a robot and is best-effort only.