FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 16926 Comm: syz-executor.4 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: 16926, name: syz-executor.4 preempt_count: 0, expected: 0 RCU nest depth: 0, expected: 0 no locks held by syz-executor.4/16926. irq event stamp: 424 hardirqs last enabled at (423): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (424): [] dump_stack_lvl+0x2e/0xb3 softirqs last enabled at (418): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (401): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 16926 Comm: syz-executor.4 Not tainted 6.0.0-rc1-next-20220819 #1 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 16929 Comm: syz-executor.0 Not tainted 6.0.0-rc1-next-20220819 #1 syz-executor.0[16929] 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: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 move_addr_to_kernel.part.0+0x31/0x110 __sys_sendto+0x183/0x340 __x64_sys_sendto+0xdd/0x1b0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f8a0ccdc8ac Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b RSP: 002b:00007f8a0a29e020 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f8a0a29e110 RCX: 00007f8a0ccdc8ac RDX: 0000000000000020 RSI: 00007f8a0a29e160 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007f8a0a29e074 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007f8a0a29e0c8 R13: 00007f8a0a29e160 R14: 0000000000000003 R15: 0000000000000000 socket: no more sockets syz-executor.4[16926] cmdline: /syz-executor.4 exec Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: 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 move_addr_to_kernel.part.0+0x31/0x110 __sys_sendto+0x183/0x340 __x64_sys_sendto+0xdd/0x1b0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1878e6f8ac Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b RSP: 002b:00007f1876431020 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f1876431110 RCX: 00007f1878e6f8ac RDX: 0000000000000020 RSI: 00007f1876431160 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007f1876431074 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007f18764310c8 R13: 00007f1876431160 R14: 0000000000000003 R15: 0000000000000000 syz-executor.4[16926] cmdline: /syz-executor.4 exec Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 move_addr_to_kernel.part.0+0x31/0x110 __sys_sendto+0x183/0x340 __x64_sys_sendto+0xdd/0x1b0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1878e6f8ac Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b RSP: 002b:00007f1876431020 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f1876431110 RCX: 00007f1878e6f8ac RDX: 0000000000000020 RSI: 00007f1876431160 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007f1876431074 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 00007f18764310c8 R13: 00007f1876431160 R14: 0000000000000003 R15: 0000000000000000