sock_alloc+0x3c/0x270 net/socket.c:569 __sock_create+0x8a/0x620 net/socket.c:1239 sock_create net/socket.c:1315 [inline] SYSC_socket net/socket.c:1345 [inline] SyS_socket+0xd1/0x1b0 net/socket.c:1325 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb general protection fault: 0000 [#1] PREEMPT SMP KASAN RIP: 0033:0x7f284f7ef049 Modules linked in: RSP: 002b:00007f284e164168 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 CPU: 1 PID: 17300 Comm: syz-executor.5 Not tainted 4.14.275-syzkaller #0 RAX: ffffffffffffffda RBX: 00007f284f901f60 RCX: 00007f284f7ef049 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000a task: ffff8880a2a14280 task.stack: ffff88807c240000 RBP: 00007f284e1641d0 R08: 0000000000000000 R09: 0000000000000000 RIP: 0010:dev_put include/linux/netdevice.h:3381 [inline] RIP: 0010:llc_ui_autobind.isra.0+0x26b/0x390 net/llc/af_llc.c:320 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 RSP: 0018:ffff88807c247bf8 EFLAGS: 00010202 R13: 00007ffdb1a21e5f R14: 00007f284e164300 R15: 0000000000022000 socket: no more sockets RAX: dffffc0000000000 RBX: ffff88809f096bc0 RCX: ffffc90005bec000 RDX: 00000000000000a8 RSI: ffffffff85d0c563 RDI: 0000000000000540 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffea socket: no more sockets R13: ffff88807c247e28 R14: ffff888090307640 R15: ffff888090307660 FS: 00007f82cf978700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7ee2212920 CR3: 00000000a3672000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: llc_ui_sendmsg+0x638/0xec0 net/llc/af_llc.c:952 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 SYSC_sendto net/socket.c:1763 [inline] SyS_sendto+0x1c7/0x2c0 net/socket.c:1731 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f82d1003049 RSP: 002b:00007f82cf978168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f82d1115f60 RCX: 00007f82d1003049 RDX: 00000000000001c3 RSI: 00000000200002c0 RDI: 0000000000000005 RBP: 00007f82d105d08d R08: 0000000020001380 R09: 0000000000000080 R10: 00000000000040c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffea17878ff R14: 00007f82cf978300 R15: 0000000000022000 Code: 55 ff ff 48 0f ba 73 60 08 45 31 e4 31 ed e8 dd 7c 84 fb 48 8d bd 40 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f2 00 00 00 48 8b 85 40 05 00 00 65 ff 08 44 RIP: dev_put include/linux/netdevice.h:3381 [inline] RSP: ffff88807c247bf8 RIP: llc_ui_autobind.isra.0+0x26b/0x390 net/llc/af_llc.c:320 RSP: ffff88807c247bf8 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 17320 Comm: syz-executor.2 Tainted: G D 4.14.275-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] sock_alloc_inode+0x5f/0x250 net/socket.c:254 alloc_inode+0x5d/0x170 fs/inode.c:210 new_inode_pseudo+0x14/0xe0 fs/inode.c:899 sock_alloc+0x3c/0x270 net/socket.c:569 __sock_create+0x8a/0x620 net/socket.c:1239 sock_create net/socket.c:1315 [inline] SYSC_socket net/socket.c:1345 [inline] SyS_socket+0xd1/0x1b0 net/socket.c:1325 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f284f7ef049 RSP: 002b:00007f284e164168 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f284f901f60 RCX: 00007f284f7ef049 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000a RBP: 00007f284e1641d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdb1a21e5f R14: 00007f284e164300 R15: 0000000000022000 CPU: 0 PID: 17328 Comm: syz-executor.1 Tainted: G D 4.14.275-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 socket: no more sockets Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] sock_alloc_inode+0x5f/0x250 net/socket.c:254 alloc_inode+0x5d/0x170 fs/inode.c:210 new_inode_pseudo+0x14/0xe0 fs/inode.c:899 sock_alloc+0x3c/0x270 net/socket.c:569 __sock_create+0x8a/0x620 net/socket.c:1239 sock_create net/socket.c:1315 [inline] SYSC_socket net/socket.c:1345 [inline] SyS_socket+0xd1/0x1b0 net/socket.c:1325 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f034e805049 RSP: 002b:00007f034d17a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f034e917f60 RCX: 00007f034e805049 RDX: 000000000000a129 RSI: 0000000000000000 RDI: 000000000000000a RBP: 00007f034d17a1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffcec4d663f R14: 00007f034d17a300 R15: 0000000000022000 socket: no more sockets CPU: 1 PID: 17345 Comm: syz-executor.2 Tainted: G D 4.14.275-syzkaller #0 ---[ end trace 108de84d94379305 ]--- Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: ff 48 0f decl 0xf(%rax) 3: ba 73 60 08 45 mov $0x45086073,%edx 8: 31 e4 xor %esp,%esp a: 31 ed xor %ebp,%ebp c: e8 dd 7c 84 fb callq 0xfb847cee 11: 48 8d bd 40 05 00 00 lea 0x540(%rbp),%rdi 18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1f: fc ff df 22: 48 89 fa mov %rdi,%rdx 25: 48 c1 ea 03 shr $0x3,%rdx * 29: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2d: 0f 85 f2 00 00 00 jne 0x125 33: 48 8b 85 40 05 00 00 mov 0x540(%rbp),%rax 3a: 65 ff 08 decl %gs:(%rax) 3d: 44 rex.R