------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:28! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 10109 Comm: syz-fuzzer Not tainted 5.6.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__phys_addr+0xb3/0x120 arch/x86/mm/physaddr.c:28 Code: 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 56 e5 40 00 48 85 db 75 0f e8 ac e3 40 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 9d e3 40 00 <0f> 0b e8 96 e3 40 00 48 c7 c0 10 50 a7 89 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc900020f76a0 EFLAGS: 00010293 RAX: ffff88808fb24640 RBX: 0007070000000707 RCX: ffffffff8134ad32 RDX: 0000000000000000 RSI: ffffffff8134ad93 RDI: 0000000000000006 RBP: ffffc900020f76b8 R08: ffff88808fb24640 R09: fffffbfff16a3382 R10: fffffbfff16a3381 R11: ffffffff8b519c0f R12: 00077e8000000707 R13: 0007070080000707 R14: ffffc900020f7708 R15: 0000000000000000 FS: 000000c000138090(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1af9086b98 CR3: 00000000a812b000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: virt_to_head_page include/linux/mm.h:721 [inline] qlink_to_cache mm/kasan/quarantine.c:128 [inline] qlist_free_all+0xc7/0x150 mm/kasan/quarantine.c:164 quarantine_reduce+0x15e/0x1a0 mm/kasan/quarantine.c:260 __kasan_kmalloc.constprop.0+0xa3/0xe0 mm/kasan/common.c:496 kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:523 slab_post_alloc_hook mm/slab.h:584 [inline] slab_alloc_node mm/slab.c:3263 [inline] kmem_cache_alloc_node+0x138/0x740 mm/slab.c:3575 __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:198 alloc_skb_fclone include/linux/skbuff.h:1101 [inline] sk_stream_alloc_skb net/ipv4/tcp.c:876 [inline] sk_stream_alloc_skb+0x113/0xc90 net/ipv4/tcp.c:853 tcp_sendmsg_locked+0xcf9/0x3470 net/ipv4/tcp.c:1283 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1433 inet_sendmsg+0x9e/0xe0 net/ipv4/af_inet.c:807 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:672 sock_write_iter+0x2cb/0x400 net/socket.c:1004 call_write_iter include/linux/fs.h:1901 [inline] new_sync_write+0x4d3/0x770 fs/read_write.c:483 __vfs_write+0xe1/0x110 fs/read_write.c:496 vfs_write+0x268/0x5d0 fs/read_write.c:558 ksys_write+0x220/0x290 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:620 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4afb40 Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 RSP: 002b:000000c0002253f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004afb40 RDX: 00000000000000f0 RSI: 000000c00017a020 RDI: 0000000000000003 RBP: 000000c000225440 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000011e R13: 000000c0003e2000 R14: 000000000000007f R15: ffffffffffffea9d Modules linked in: ---[ end trace 42245e27f19dda14 ]--- RIP: 0010:__phys_addr+0xb3/0x120 arch/x86/mm/physaddr.c:28 Code: 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 56 e5 40 00 48 85 db 75 0f e8 ac e3 40 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 9d e3 40 00 <0f> 0b e8 96 e3 40 00 48 c7 c0 10 50 a7 89 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc900020f76a0 EFLAGS: 00010293 RAX: ffff88808fb24640 RBX: 0007070000000707 RCX: ffffffff8134ad32 RDX: 0000000000000000 RSI: ffffffff8134ad93 RDI: 0000000000000006 RBP: ffffc900020f76b8 R08: ffff88808fb24640 R09: fffffbfff16a3382 R10: fffffbfff16a3381 R11: ffffffff8b519c0f R12: 00077e8000000707 R13: 0007070080000707 R14: ffffc900020f7708 R15: 0000000000000000 FS: 000000c000138090(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffff8b31dac CR3: 00000000a812b000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400