------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:28! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 17828 Comm: syz-executor.3 Not tainted 5.9.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:28 Code: 99 7d 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 90 90 3f 00 48 85 db 75 0d e8 e6 93 3f 00 4c 89 e0 5b 5d 41 5c c3 e8 d9 93 3f 00 <0f> 0b e8 d2 93 3f 00 48 c7 c0 10 50 a9 89 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc90008d0f100 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000007777770 RCX: ffffc9000f1db000 RDX: 0000000000040000 RSI: ffffffff8134b9a7 RDI: 0000000000000006 RBP: 0000000087777770 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000087777770 R11: 0000000000000000 R12: 0000778007777770 R13: ffffc90008d0f168 R14: 0000000000000200 R15: dffffc0000000000 FS: 00007fd3ae155700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000016a8660 CR3: 00000000a3e9f000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: virt_to_head_page include/linux/mm.h:848 [inline] qlink_to_cache mm/kasan/quarantine.c:128 [inline] qlist_free_all+0xd9/0x170 mm/kasan/quarantine.c:165 quarantine_reduce+0x17e/0x200 mm/kasan/quarantine.c:261 __kasan_kmalloc.constprop.0+0x9e/0xd0 mm/kasan/common.c:442 slab_post_alloc_hook mm/slab.h:518 [inline] slab_alloc_node mm/slab.c:3254 [inline] kmem_cache_alloc_node+0x136/0x3e0 mm/slab.c:3574 __alloc_skb+0x71/0x550 net/core/skbuff.c:198 alloc_skb include/linux/skbuff.h:1094 [inline] alloc_skb_with_frags+0x92/0x570 net/core/skbuff.c:5771 sock_alloc_send_pskb+0x72a/0x880 net/core/sock.c:2348 __ip_append_data+0x1595/0x31c0 net/ipv4/ip_output.c:1095 ip_make_skb+0x226/0x2a0 net/ipv4/ip_output.c:1632 udp_sendmsg+0x1c2d/0x26c0 net/ipv4/udp.c:1230 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:817 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x331/0x810 net/socket.c:2353 ___sys_sendmsg+0xf3/0x170 net/socket.c:2407 __sys_sendmmsg+0x195/0x480 net/socket.c:2497 __do_sys_sendmmsg net/socket.c:2526 [inline] __se_sys_sendmmsg net/socket.c:2523 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2523 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: 5d 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd3ae154c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000027a40 RCX: 000000000045d5b9 RDX: 0400000000000075 RSI: 0000000020007fc0 RDI: 0000000000000004 RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000001000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 000000000169fb6f R14: 00007fd3ae1559c0 R15: 000000000118cf4c Modules linked in: ---[ end trace 4e028dae94c774e2 ]--- RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:28 Code: 99 7d 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 90 90 3f 00 48 85 db 75 0d e8 e6 93 3f 00 4c 89 e0 5b 5d 41 5c c3 e8 d9 93 3f 00 <0f> 0b e8 d2 93 3f 00 48 c7 c0 10 50 a9 89 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc90008d0f100 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000007777770 RCX: ffffc9000f1db000 RDX: 0000000000040000 RSI: ffffffff8134b9a7 RDI: 0000000000000006 RBP: 0000000087777770 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000087777770 R11: 0000000000000000 R12: 0000778007777770 R13: ffffc90008d0f168 R14: 0000000000000200 R15: dffffc0000000000 FS: 00007fd3ae155700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1b3487a000 CR3: 00000000a3e9f000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400