------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:28! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8467 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__phys_addr+0xd3/0x140 arch/x86/mm/physaddr.c:28 Code: e3 44 89 e9 31 ff 48 d3 eb 48 89 de e8 a6 d1 40 00 48 85 db 75 0f e8 7c c9 40 00 4c 89 e0 5b 5d 41 5c 41 5d c3 e8 6d c9 40 00 <0f> 0b e8 66 c9 40 00 48 c7 c0 10 50 cb 8b 48 ba 00 00 00 00 00 fc RSP: 0000:ffffc9000166f9f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 000003c0ffffea00 RCX: 0000000000000100 RDX: ffff88801bca8000 RSI: ffffffff81343003 RDI: 0000000000000003 RBP: 000003c17fffea00 R08: 000003c17fffea00 R09: ffff888143492005 R10: ffffffff81342f7e R11: 0000000000000000 R12: 00007b40ffffea00 R13: 0000000000000840 R14: dffffc0000000000 R15: ffff8880290bfdc0 FS: 000000c00049c890(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3350a99620 CR3: 0000000029875000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: virt_to_head_page include/linux/mm.h:897 [inline] receive_mergeable drivers/net/virtio_net.c:1032 [inline] receive_buf+0x2ca8/0x6250 drivers/net/virtio_net.c:1122 virtnet_receive drivers/net/virtio_net.c:1414 [inline] virtnet_poll+0x58a/0x1180 drivers/net/virtio_net.c:1521 __napi_poll+0xaf/0x440 net/core/dev.c:6966 napi_poll net/core/dev.c:7033 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7120 __do_softirq+0x29b/0x9fe kernel/softirq.c:559 invoke_softirq kernel/softirq.c:433 [inline] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 common_interrupt+0x51/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x632220 Code: 66 a6 e3 ff 90 0f 1f 44 00 00 e8 1b 86 e3 ff e9 16 fc ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <64> 48 8b 0c 25 f8 ff ff ff 48 3b 61 10 0f 86 ce 00 00 00 48 83 ec RSP: 002b:000000c0002bfae8 EFLAGS: 00000297 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 000000000000000d RDX: 0000000000000740 RSI: 000000c0004f6000 RDI: 0000000000000004 RBP: 000000c0002bfb68 R08: 0000000000002000 R09: ffffffffffffffff R10: 0000000000006cf0 R11: 000000000000664d R12: 0000000000006cec R13: 0000000000000200 R14: 0000000000000020 R15: 0000000000000020 Modules linked in: ---[ end trace e1bd3eb27d1d5791 ]--- RIP: 0010:__phys_addr+0xd3/0x140 arch/x86/mm/physaddr.c:28 Code: e3 44 89 e9 31 ff 48 d3 eb 48 89 de e8 a6 d1 40 00 48 85 db 75 0f e8 7c c9 40 00 4c 89 e0 5b 5d 41 5c 41 5d c3 e8 6d c9 40 00 <0f> 0b e8 66 c9 40 00 48 c7 c0 10 50 cb 8b 48 ba 00 00 00 00 00 fc RSP: 0000:ffffc9000166f9f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 000003c0ffffea00 RCX: 0000000000000100 RDX: ffff88801bca8000 RSI: ffffffff81343003 RDI: 0000000000000003 RBP: 000003c17fffea00 R08: 000003c17fffea00 R09: ffff888143492005 R10: ffffffff81342f7e R11: 0000000000000000 R12: 00007b40ffffea00 R13: 0000000000000840 R14: dffffc0000000000 R15: ffff8880290bfdc0 FS: 000000c00049c890(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3350a99620 CR3: 0000000029875000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400