FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 4835 Comm: syz-executor.0 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: 4835, name: syz-executor.0 preempt_count: 0, expected: 0 RCU nest depth: 0, expected: 0 no locks held by syz-executor.0/4835. irq event stamp: 268 hardirqs last enabled at (267): [<ffffffff812bd8c8>] __up_console_sem+0x78/0x80 hardirqs last disabled at (268): [<ffffffff8411f196>] dump_stack_lvl+0x2e/0xb3 softirqs last enabled at (262): [<ffffffff8116ba5b>] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (231): [<ffffffff8116ba5b>] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 4835 Comm: syz-executor.0 Not tainted 6.0.0-rc1-next-20220819 #1 syz-executor.0[4835] cmdline: /syz-executor.0 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 copy_clone_args_from_user+0x147/0x790 __do_sys_clone3+0x8f/0x2e0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f539093cb19 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:00007f538deb2188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f5390a4ff60 RCX: 00007f539093cb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000640 RBP: 00007f538deb21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc8430d90f R14: 00007f538deb2300 R15: 0000000000022000 </TASK> syz-executor.0[4835] cmdline: /syz-executor.0 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 copy_clone_args_from_user+0x147/0x790 __do_sys_clone3+0x8f/0x2e0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f539093cb19 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:00007f538deb2188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f5390a4ff60 RCX: 00007f539093cb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000640 RBP: 00007f538deb21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc8430d90f R14: 00007f538deb2300 R15: 0000000000022000 </TASK> loop2: detected capacity change from 0 to 40 loop2: detected capacity change from 0 to 40