------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:28! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11447 Comm: kworker/u4:12 Not tainted 5.7.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: krdsd rds_tcp_accept_worker RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:28 Code: e4 55 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 80 a4 3f 00 48 85 db 75 0d e8 e6 a2 3f 00 4c 89 e0 5b 5d 41 5c c3 e8 d9 a2 3f 00 <0f> 0b e8 d2 a2 3f 00 48 c7 c0 10 10 88 89 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc9001780fa28 EFLAGS: 00010293 RAX: ffff888092880080 RBX: 7777777777777777 RCX: ffffffff81339b78 RDX: 0000000000000000 RSI: ffffffff81339bd7 RDI: 0000000000000006 RBP: 77777777f7777777 R08: ffff888092880080 R09: fffffbfff185df5a R10: ffffffff8c2efacf R11: fffffbfff185df59 R12: 7777eef777777777 R13: ffffc9001780fa80 R14: 0000000000000000 R15: 0000000000000282 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000078c000 CR3: 000000009e472000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: virt_to_head_page include/linux/mm.h:833 [inline] qlink_to_cache mm/kasan/quarantine.c:128 [inline] qlist_free_all+0xbb/0x140 mm/kasan/quarantine.c:164 quarantine_reduce+0x135/0x170 mm/kasan/quarantine.c:260 __kasan_kmalloc.constprop.0+0x97/0xd0 mm/kasan/common.c:476 slab_post_alloc_hook mm/slab.h:586 [inline] slab_alloc mm/slab.c:3320 [inline] kmem_cache_alloc+0x11b/0x740 mm/slab.c:3484 sock_alloc_inode+0x18/0x1c0 net/socket.c:253 alloc_inode+0x61/0x1e0 fs/inode.c:232 new_inode_pseudo+0x14/0xe0 fs/inode.c:928 sock_alloc+0x3c/0x260 net/socket.c:573 sock_create_lite+0x7b/0x120 net/socket.c:1232 rds_tcp_accept_one+0x150/0xb70 net/rds/tcp_listen.c:143 rds_tcp_accept_worker+0x50/0x80 net/rds/tcp.c:525 process_one_work+0x965/0x16a0 kernel/workqueue.c:2268 worker_thread+0x96/0xe20 kernel/workqueue.c:2414 kthread+0x388/0x470 kernel/kthread.c:268 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351 Modules linked in: ---[ end trace 4618ff4327f4fb50 ]--- RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:28 Code: e4 55 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 80 a4 3f 00 48 85 db 75 0d e8 e6 a2 3f 00 4c 89 e0 5b 5d 41 5c c3 e8 d9 a2 3f 00 <0f> 0b e8 d2 a2 3f 00 48 c7 c0 10 10 88 89 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc9001780fa28 EFLAGS: 00010293 RAX: ffff888092880080 RBX: 7777777777777777 RCX: ffffffff81339b78 RDX: 0000000000000000 RSI: ffffffff81339bd7 RDI: 0000000000000006 RBP: 77777777f7777777 R08: ffff888092880080 R09: fffffbfff185df5a R10: ffffffff8c2efacf R11: fffffbfff185df59 R12: 7777eef777777777 R13: ffffc9001780fa80 R14: 0000000000000000 R15: 0000000000000282 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcfcfe53520 CR3: 000000009233a000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400