------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:28!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1201 Comm: syz-executor.0 Not tainted 5.9.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__phys_addr+0x107/0x120 arch/x86/mm/physaddr.c:28
Code: eb ab 48 c7 c1 25 9a af 89 80 e1 07 38 c1 0f 8c 75 ff ff ff 48 c7 c7 25 9a af 89 e8 33 12 80 00 e9 64 ff ff ff e8 39 2e 40 00 <0f> 0b e8 32 2e 40 00 0f 0b e8 2b 2e 40 00 0f 0b 66 0f 1f 84 00 00
RSP: 0018:ffffc90008b0f730 EFLAGS: 00010287
RAX: ffffffff8134cf47 RBX: 60c6760080006618 RCX: 0000000000040000
RDX: ffffc900060d9000 RSI: 0000000000018954 RDI: 0000000000018955
RBP: 60c6760000006618 R08: ffffffff8134ce81 R09: ffffed1025fff799
R10: ffffed1025fff799 R11: 0000000000000000 R12: ffff88809b50e000
R13: 00000000000001c0 R14: 60c6ed8000006618 R15: ffffea0000000000
FS:  00007f70b832b700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000749698 CR3: 000000021860c000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 virt_to_head_page include/linux/mm.h:850 [inline]
 qlink_to_cache mm/kasan/quarantine.c:128 [inline]
 qlist_free_all mm/kasan/quarantine.c:165 [inline]
 quarantine_reduce+0x130/0x1c0 mm/kasan/quarantine.c:261
 __kasan_kmalloc+0x32/0x130 mm/kasan/common.c:442
 kmem_cache_alloc_node_trace+0x1f7/0x2a0 mm/slab.c:3598
 __do_kmalloc_node mm/slab.c:3618 [inline]
 __kmalloc_node_track_caller+0x37/0x60 mm/slab.c:3633
 __kmalloc_reserve net/core/skbuff.c:142 [inline]
 __alloc_skb+0xde/0x4f0 net/core/skbuff.c:210
 alloc_skb include/linux/skbuff.h:1094 [inline]
 sock_wmalloc+0xa1/0x120 net/core/sock.c:2199
 pppol2tp_sendmsg+0x21e/0x7e0 net/l2tp/l2tp_ppp.c:300
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg net/socket.c:671 [inline]
 ____sys_sendmsg+0x519/0x800 net/socket.c:2353
 ___sys_sendmsg net/socket.c:2407 [inline]
 __sys_sendmmsg+0x45b/0x680 net/socket.c:2497
 __do_sys_sendmmsg net/socket.c:2526 [inline]
 __se_sys_sendmmsg net/socket.c:2523 [inline]
 __x64_sys_sendmmsg+0x9c/0xb0 net/socket.c:2523
 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45dd99
Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f70b832ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 0000000000027f00 RCX: 000000000045dd99
RDX: 00000000000002e9 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffd2f502a7f R14: 00007f70b832b9c0 R15: 000000000118bf2c
Modules linked in:
---[ end trace 90403895a6ef3526 ]---
RIP: 0010:__phys_addr+0x107/0x120 arch/x86/mm/physaddr.c:28
Code: eb ab 48 c7 c1 25 9a af 89 80 e1 07 38 c1 0f 8c 75 ff ff ff 48 c7 c7 25 9a af 89 e8 33 12 80 00 e9 64 ff ff ff e8 39 2e 40 00 <0f> 0b e8 32 2e 40 00 0f 0b e8 2b 2e 40 00 0f 0b 66 0f 1f 84 00 00
RSP: 0018:ffffc90008b0f730 EFLAGS: 00010287
RAX: ffffffff8134cf47 RBX: 60c6760080006618 RCX: 0000000000040000
RDX: ffffc900060d9000 RSI: 0000000000018954 RDI: 0000000000018955
RBP: 60c6760000006618 R08: ffffffff8134ce81 R09: ffffed1025fff799
R10: ffffed1025fff799 R11: 0000000000000000 R12: ffff88809b50e000
R13: 00000000000001c0 R14: 60c6ed8000006618 R15: ffffea0000000000
FS:  00007f70b832b700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ed41933007 CR3: 000000021860c000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400