FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 1
CPU: 0 PID: 5627 Comm: syz-executor.5 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: 5627, name: syz-executor.5
preempt_count: 0, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor.5/5627:
#0: ffff88800d8d1c68 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100
#1: ffff88801896cd58 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xe3/0x12b0
irq event stamp: 454
hardirqs last enabled at (453): [<ffffffff812bd8c8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (454): [<ffffffff8411f196>] dump_stack_lvl+0x2e/0xb3
softirqs last enabled at (448): [<ffffffff8116ba5b>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (411): [<ffffffff8116ba5b>] __irq_exit_rcu+0x11b/0x180
CPU: 0 PID: 5627 Comm: syz-executor.5 Not tainted 6.0.0-rc1-next-20220819 #1
syz-executor.5[5627] cmdline: /syz-executor.5 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
copyout+0x19/0x120
_copy_to_iter+0x576/0x1430
seq_read_iter+0xdcb/0x12b0
seq_read+0x16d/0x210
proc_reg_read+0x22a/0x300
vfs_read+0x253/0x930
ksys_read+0x127/0x250
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd577431b19
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:00007fd5749a7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fd577544f60 RCX: 00007fd577431b19
RDX: 00000000200000e9 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00007fd5749a71d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdc811fd1f R14: 00007fd5749a7300 R15: 0000000000022000
</TASK>
syz-executor.5[5627] cmdline: /syz-executor.5 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
copyout+0x19/0x120
_copy_to_iter+0x576/0x1430
seq_read_iter+0xdcb/0x12b0
seq_read+0x16d/0x210
proc_reg_read+0x22a/0x300
vfs_read+0x253/0x930
ksys_read+0x127/0x250
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd577431b19
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:00007fd5749a7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fd577544f60 RCX: 00007fd577431b19
RDX: 00000000200000e9 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00007fd5749a71d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdc811fd1f R14: 00007fd5749a7300 R15: 0000000000022000
</TASK>
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 5649 Comm: syz-executor.5 Tainted: G W 6.0.0-rc1-next-20220819 #1
syz-executor.5[5649] cmdline: /syz-executor.5 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_to_user+0x2a/0x140
simple_read_from_buffer+0xcc/0x160
proc_fail_nth_read+0x198/0x230
vfs_read+0x253/0x930
ksys_read+0x127/0x250
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd5773e469c
Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 fc ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 2f fd ff ff 48
RSP: 002b:00007fd5749a7170 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000081 RCX: 00007fd5773e469c
RDX: 000000000000000f RSI: 00007fd5749a71e0 RDI: 0000000000000004
RBP: 00007fd5749a71d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdc811fd1f R14: 00007fd5749a7300 R15: 0000000000022000
</TASK>