FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 5361 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: 5361, name: syz-executor.4 preempt_count: 0, expected: 0 RCU nest depth: 0, expected: 0 no locks held by syz-executor.4/5361. irq event stamp: 390 hardirqs last enabled at (389): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (390): [] dump_stack_lvl+0x2e/0xb3 softirqs last enabled at (164): [] fib6_dump_table.isra.0+0x6ee/0x8f0 softirqs last disabled at (158): [] fib6_dump_table.isra.0+0x364/0x8f0 CPU: 0 PID: 5361 Comm: syz-executor.4 Not tainted 6.0.0-rc1-next-20220819 #1 syz-executor.4[5361] 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 copy_msghdr_from_user+0x89/0x150 ___sys_recvmsg+0xbc/0x190 do_recvmmsg+0x25d/0x6e0 __x64_sys_recvmmsg+0x20f/0x260 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7cf72d7b19 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:00007f7cf484d188 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f7cf73eaf60 RCX: 00007f7cf72d7b19 RDX: 0000000000000001 RSI: 0000000020003980 RDI: 0000000000000003 RBP: 00007f7cf484d1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd588fb69f R14: 00007f7cf484d300 R15: 0000000000022000 syz-executor.4[5361] 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 copy_msghdr_from_user+0x89/0x150 ___sys_recvmsg+0xbc/0x190 do_recvmmsg+0x25d/0x6e0 __x64_sys_recvmmsg+0x20f/0x260 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7cf72d7b19 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:00007f7cf484d188 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f7cf73eaf60 RCX: 00007f7cf72d7b19 RDX: 0000000000000001 RSI: 0000000020003980 RDI: 0000000000000003 RBP: 00007f7cf484d1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd588fb69f R14: 00007f7cf484d300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 5382 Comm: syz-executor.3 Tainted: G W 6.0.0-rc1-next-20220819 #1 syz-executor.3[5382] cmdline: /syz-executor.3 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 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: 0033:0x7fa336068b19 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:00007fa3335de188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fa33617bf60 RCX: 00007fa336068b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000540 RBP: 00007fa3335de1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd8f4853af R14: 00007fa3335de300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 5388 Comm: syz-executor.5 Tainted: G W 6.0.0-rc1-next-20220819 #1 syz-executor.5[5388] 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: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 copy_msghdr_from_user+0x89/0x150 ___sys_sendmsg+0xdd/0x1b0 __sys_sendmmsg+0x18b/0x460 __x64_sys_sendmmsg+0x99/0x100 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe356164b19 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:00007fe3536da188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fe356277f60 RCX: 00007fe356164b19 RDX: 0000000000000001 RSI: 0000000020004580 RDI: 0000000000000003 RBP: 00007fe3536da1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdc01514df R14: 00007fe3536da300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 5393 Comm: syz-executor.3 Tainted: G W 6.0.0-rc1-next-20220819 #1 syz-executor.3[5393] cmdline: /syz-executor.3 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 copy_clone_args_from_user+0x4a4/0x790 __do_sys_clone3+0x8f/0x2e0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa336068b19 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:00007fa3335de188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fa33617bf60 RCX: 00007fa336068b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000540 RBP: 00007fa3335de1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd8f4853af R14: 00007fa3335de300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 5399 Comm: syz-executor.7 Tainted: G W 6.0.0-rc1-next-20220819 #1 syz-executor.7[5399] 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: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa copyin+0x19/0x120 _copy_from_iter+0x1d2/0x1210 copy_page_from_iter+0x24c/0x510 tun_build_skb+0x2d2/0x1130 tun_get_user+0x6fb/0x3620 tun_chr_write_iter+0xdb/0x1e0 vfs_write+0x9c3/0xd90 ksys_write+0x127/0x250 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f2acc0925ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 RSP: 002b:00007f2ac9655150 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2acc1f2f60 RCX: 00007f2acc0925ff RDX: 00000000000001f7 RSI: 0000000020000780 RDI: 00000000000000f0 RBP: 00007f2ac96551d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffc0c1843ef R14: 00007f2ac9655300 R15: 0000000000022000