loop0: detected capacity change from 0 to 128 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= vfat: Unknown parameter ' ' BUG: unable to handle page fault for address: ffffed101194b200 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 5ffd5067 P4D 5ffd5067 PUD 2fffa067 PMD 0 Oops: Oops: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:__mkroute_output net/ipv4/route.c:2649 [inline] RIP: 0010:ip_route_output_key_hash_rcu+0x1264/0x25d0 net/ipv4/route.c:2875 Code: 6b 11 09 49 83 c6 38 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 09 4a 26 f8 49 03 1e 4d 89 fd 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 ed 49 26 f8 4c 8b 3b e8 c5 52 a4 RSP: 0018:ffffc9000e30f1c0 EFLAGS: 00010a06 RAX: 1ffff1101194b200 RBX: ffff88808ca59000 RCX: 0000000000100000 RDX: ffffc90020001000 RSI: 00000000000003f1 RDI: 00000000000003f2 RBP: 0000000080000000 R08: ffff88801186a480 R09: 0000000000000003 R10: 0000000000000005 R11: 0000000000000002 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff888037d26958 R15: 0000000000000000 FS: 00007f44143d56c0(0000) GS:ffff88808ca59000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101194b200 CR3: 000000001fc72000 CR4: 0000000000352ef0 Call Trace: ip_route_output_key_hash+0x18d/0x2a0 net/ipv4/route.c:2705 __ip_route_output_key include/net/route.h:169 [inline] ip_route_output_flow+0x2a/0x150 net/ipv4/route.c:2932 udp_sendmsg+0x146d/0x2430 net/ipv4/udp.c:1451 udpv6_sendmsg+0x9e3/0x2860 net/ipv6/udp.c:1545 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] ____sys_sendmsg+0x62c/0xad0 net/socket.c:2592 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f441359c799 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f44143d5028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4413815fa0 RCX: 00007f441359c799 RDX: 0000000000000000 RSI: 0000200000000400 RDI: 0000000000000008 RBP: 00007f4413632bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4413816038 R14: 00007f4413815fa0 R15: 00007fff9440c9d8 Modules linked in: CR2: ffffed101194b200 ---[ end trace 0000000000000000 ]--- RIP: 0010:__mkroute_output net/ipv4/route.c:2649 [inline] RIP: 0010:ip_route_output_key_hash_rcu+0x1264/0x25d0 net/ipv4/route.c:2875 Code: 6b 11 09 49 83 c6 38 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 09 4a 26 f8 49 03 1e 4d 89 fd 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 ed 49 26 f8 4c 8b 3b e8 c5 52 a4 RSP: 0018:ffffc9000e30f1c0 EFLAGS: 00010a06 RAX: 1ffff1101194b200 RBX: ffff88808ca59000 RCX: 0000000000100000 RDX: ffffc90020001000 RSI: 00000000000003f1 RDI: 00000000000003f2 RBP: 0000000080000000 R08: ffff88801186a480 R09: 0000000000000003 R10: 0000000000000005 R11: 0000000000000002 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff888037d26958 R15: 0000000000000000 FS: 00007f44143d56c0(0000) GS:ffff88808ca59000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101194b200 CR3: 000000001fc72000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess): 0: 6b 11 09 imul $0x9,(%rcx),%edx 3: 49 83 c6 38 add $0x38,%r14 7: 4c 89 f0 mov %r14,%rax a: 48 c1 e8 03 shr $0x3,%rax e: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) 13: 74 08 je 0x1d 15: 4c 89 f7 mov %r14,%rdi 18: e8 09 4a 26 f8 call 0xf8264a26 1d: 49 03 1e add (%r14),%rbx 20: 4d 89 fd mov %r15,%r13 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 ed 49 26 f8 call 0xf8264a26 39: 4c 8b 3b mov (%rbx),%r15 3c: e8 .byte 0xe8 3d: c5 .byte 0xc5 3e: 52 push %rdx 3f: a4 movsb %ds:(%rsi),%es:(%rdi)