CPU: 1 PID: 5172 Comm: syz-executor.7 Not tainted 6.0.0-rc1-next-20220819 #1
BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1521
in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 5172, name: syz-executor.7
preempt_count: 0, expected: 0
RCU nest depth: 0, expected: 0
1 lock held by syz-executor.7/5172:
 #0: ffff888019b8f0a8 (&ctx->uring_lock){+.+.}-{3:3}, at: __do_sys_io_uring_register+0x1da/0x1250
irq event stamp: 626
hardirqs last  enabled at (625): [<ffffffff812c3d12>] vprintk_emit+0x502/0x560
hardirqs last disabled at (626): [<ffffffff8411f196>] dump_stack_lvl+0x2e/0xb3
softirqs last  enabled at (582): [<ffffffff8116ba5b>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (535): [<ffffffff8116ba5b>] __irq_exit_rcu+0x11b/0x180
CPU: 1 PID: 5172 Comm: syz-executor.7 Not tainted 6.0.0-rc1-next-20220819 #1
syz-executor.7[5172] cmdline: /syz-executor.7 exec
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 __might_resched.cold+0x222/0x26b
 down_read_killable+0x75/0x490
 __access_remote_vm+0xac/0x6f0
 get_mm_cmdline.part.0+0x214/0x600
 get_task_cmdline_kernel+0x1e9/0x230
 dump_stack_print_cmdline.part.0+0x82/0x150
 dump_stack_print_info+0x185/0x190
 dump_stack_lvl+0x7f/0xb3
 should_fail.cold+0x5/0xa
 _copy_from_user+0x2a/0x170
 io_unregister_pbuf_ring+0x89/0x2c0
 __do_sys_io_uring_register+0xdb4/0x1250
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f24d95acb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f24d6b22188 EFLAGS: 00000246 ORIG_RAX: 00000000000001ab
RAX: ffffffffffffffda RBX: 00007f24d96bff60 RCX: 00007f24d95acb19
RDX: 0000000020000000 RSI: 0000000000000017 RDI: 0000000000000003
RBP: 00007f24d6b221d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcafc1f12f R14: 00007f24d6b22300 R15: 0000000000022000
 </TASK>
syz-executor.7[5172] cmdline: /syz-executor.7 exec
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8b/0xb3
 should_fail.cold+0x5/0xa
 _copy_from_user+0x2a/0x170
 io_unregister_pbuf_ring+0x89/0x2c0
 __do_sys_io_uring_register+0xdb4/0x1250
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f24d95acb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f24d6b22188 EFLAGS: 00000246 ORIG_RAX: 00000000000001ab
RAX: ffffffffffffffda RBX: 00007f24d96bff60 RCX: 00007f24d95acb19
RDX: 0000000020000000 RSI: 0000000000000017 RDI: 0000000000000003
RBP: 00007f24d6b221d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcafc1f12f R14: 00007f24d6b22300 R15: 0000000000022000
 </TASK>
Quota error (device loop5): v2_read_file_info: Free block number too big (0 >= 0).
EXT4-fs warning (device loop5): ext4_enable_quotas:6818: Failed to enable quota tracking (type=1, err=-117). Please run e2fsck to fix.
EXT4-fs (loop5): mount failed