print_req_error: I/O error, dev loop0, sector 136 flags 0 Buffer I/O error on dev loop0, logical block 136, async page read kasan: GPF could be caused by NULL-ptr deref or user memory access print_req_error: I/O error, dev loop0, sector 137 flags 0 Buffer I/O error on dev loop0, logical block 137, async page read general protection fault: 0000 [#1] PREEMPT SMP KASAN print_req_error: I/O error, dev loop0, sector 138 flags 0 CPU: 1 PID: 16415 Comm: syz-executor.4 Not tainted 5.0.0-rc7+ #80 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ip6erspan_set_version+0x5c/0x350 net/ipv6/ip6_gre.c:1726 Code: 07 38 d0 7f 08 84 c0 0f 85 9f 02 00 00 49 8d bc 24 b0 00 00 00 c6 43 54 01 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9a 02 00 00 4d 8b ac 24 b0 00 00 00 4d 85 ed 0f Buffer I/O error on dev loop0, logical block 138, async page read RSP: 0018:ffff88808daa7168 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888085b7cc98 RCX: ffffc9000e44e000 RDX: 0000000000000016 RSI: ffffffff86215234 RDI: 00000000000000b0 RBP: ffff88808daa7180 R08: 1ffff11010b6f993 R09: ffff888085b7cc98 print_req_error: I/O error, dev loop0, sector 139 flags 0 R10: ffffed1010b6f99d R11: ffff888085b7ccef R12: 0000000000000000 R13: ffff88809f3306c0 R14: ffffffff86224150 R15: ffff888085b7cc98 FS: 00007f7f9c9d3700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Buffer I/O error on dev loop0, logical block 139, async page read CR2: 0000000000f20040 CR3: 0000000089f79000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6erspan_newlink+0x66/0x7b0 net/ipv6/ip6_gre.c:2210 print_req_error: I/O error, dev loop0, sector 140 flags 0 __rtnl_newlink+0x107b/0x16c0 net/core/rtnetlink.c:3182 Buffer I/O error on dev loop0, logical block 140, async page read print_req_error: I/O error, dev loop0, sector 141 flags 0 Buffer I/O error on dev loop0, logical block 141, async page read print_req_error: I/O error, dev loop0, sector 142 flags 0 Buffer I/O error on dev loop0, logical block 142, async page read print_req_error: I/O error, dev loop0, sector 143 flags 0 Buffer I/O error on dev loop0, logical block 143, async page read kobject: 'loop1' (00000000b2f9360c): kobject_uevent_env kobject: 'loop1' (00000000b2f9360c): fill_kobj_path: path = '/devices/virtual/block/loop1' rtnl_newlink+0x69/0xa0 net/core/rtnetlink.c:3240 rtnetlink_rcv_msg+0x465/0xb00 net/core/rtnetlink.c:5130 kobject: 'loop3' (000000004ccfc877): kobject_uevent_env kobject: 'loop3' (000000004ccfc877): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2477 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5148 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:631 ___sys_sendmsg+0x806/0x930 net/socket.c:2114 __sys_sendmsg+0x105/0x1d0 net/socket.c:2152 __do_sys_sendmsg net/socket.c:2161 [inline] __se_sys_sendmsg net/socket.c:2159 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2159 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7f9c9d2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000020001340 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7f9c9d36d4 R13: 00000000004c5469 R14: 00000000004d92b0 R15: 00000000ffffffff Modules linked in: ---[ end trace 537eccce35203bfd ]--- RIP: 0010:ip6erspan_set_version+0x5c/0x350 net/ipv6/ip6_gre.c:1726 kobject: 'loop0' (00000000b8f8c96a): kobject_uevent_env Code: 07 38 d0 7f 08 84 c0 0f 85 9f 02 00 00 49 8d bc 24 b0 00 00 00 c6 43 54 01 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9a 02 00 00 4d 8b ac 24 b0 00 00 00 4d 85 ed 0f RSP: 0018:ffff88808daa7168 EFLAGS: 00010202 kobject: 'loop0' (00000000b8f8c96a): kobject_uevent_env RAX: dffffc0000000000 RBX: ffff888085b7cc98 RCX: ffffc9000e44e000 Unknown ioctl 21533 kobject: 'loop0' (00000000b8f8c96a): fill_kobj_path: path = '/devices/virtual/block/loop0' RDX: 0000000000000016 RSI: ffffffff86215234 RDI: 00000000000000b0 kobject: 'loop0' (00000000b8f8c96a): fill_kobj_path: path = '/devices/virtual/block/loop0' RBP: ffff88808daa7180 R08: 1ffff11010b6f993 R09: ffff888085b7cc98 kobject: 'loop2' (000000005ffaac15): kobject_uevent_env kobject: 'loop2' (000000005ffaac15): fill_kobj_path: path = '/devices/virtual/block/loop2' R10: ffffed1010b6f99d R11: ffff888085b7ccef R12: 0000000000000000 R13: ffff88809f3306c0 R14: ffffffff86224150 R15: ffff888085b7cc98 FS: 00007f7f9c9d3700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 kobject: 'loop0' (00000000b8f8c96a): kobject_uevent_env CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff2a6044c88 CR3: 0000000089f79000 CR4: 00000000001426e0 kobject: 'loop0' (00000000b8f8c96a): fill_kobj_path: path = '/devices/virtual/block/loop0' DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400