------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:27! Cannot find add_set index 0 as target Cannot find add_set index 0 as target invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 32582 Comm: syz-executor.1 Not tainted 4.19.211-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:27 Code: 67 fb 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 40 28 37 00 48 85 db 75 0d e8 a6 26 37 00 4c 89 e0 5b 5d 41 5c c3 e8 99 26 37 00 <0f> 0b e8 92 26 37 00 48 c7 c0 10 30 e7 89 48 ba 00 00 00 00 00 fc RSP: 0018:ffff888231c1f748 EFLAGS: 00010212 RAX: 0000000000040000 RBX: 0070700700707007 RCX: ffffc9000acff000 RDX: 000000000000ab17 RSI: ffffffff812b5ed7 RDI: 0000000000000006 RBP: 0070700780707007 R08: 0000000000000000 R09: 0070700780707007 R10: 0000000000000006 R11: 0000000000000000 R12: 0070e78700707007 R13: ffff888231c1f7a0 R14: 0000000000000000 R15: 0000000000000286 FS: 00007f9fbb744700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f524000 CR3: 00000002115f0000 CR4: 00000000003426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: virt_to_head_page include/linux/mm.h:665 [inline] qlink_to_cache mm/kasan/quarantine.c:127 [inline] qlist_free_all+0xbb/0x140 mm/kasan/quarantine.c:163 quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] kmem_cache_alloc+0x110/0x370 mm/slab.c:3557 sock_alloc_inode+0x19/0x250 net/socket.c:244 alloc_inode+0x5d/0x180 fs/inode.c:211 new_inode_pseudo+0x14/0xe0 fs/inode.c:911 sock_alloc+0x3c/0x260 net/socket.c:567 __sock_create+0xba/0x740 net/socket.c:1329 inet_ctl_sock_create+0x88/0x1d0 net/ipv4/af_inet.c:1605 icmp_sk_init net/ipv4/icmp.c:1272 [inline] icmp_sk_init+0x101/0x630 net/ipv4/icmp.c:1261 ops_init+0xb3/0x410 net/core/net_namespace.c:129 setup_net+0x2c2/0x720 net/core/net_namespace.c:316 copy_net_ns+0x1f7/0x340 net/core/net_namespace.c:439 create_new_namespaces+0x3f6/0x7b0 kernel/nsproxy.c:107 unshare_nsproxy_namespaces+0xbd/0x1f0 kernel/nsproxy.c:206 ksys_unshare+0x36c/0x9a0 kernel/fork.c:2542 __do_sys_unshare kernel/fork.c:2610 [inline] __se_sys_unshare kernel/fork.c:2608 [inline] __x64_sys_unshare+0x2d/0x40 kernel/fork.c:2608 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f9fbe1ceae9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9fbb744188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f9fbe2e1f60 RCX: 00007f9fbe1ceae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 00007f9fbe228f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb64e26ff R14: 00007f9fbb744300 R15: 0000000000022000 Modules linked in: netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. ---[ end trace a7a892834e4ffd52 ]--- RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:27 Code: 67 fb 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 40 28 37 00 48 85 db 75 0d e8 a6 26 37 00 4c 89 e0 5b 5d 41 5c c3 e8 99 26 37 00 <0f> 0b e8 92 26 37 00 48 c7 c0 10 30 e7 89 48 ba 00 00 00 00 00 fc Cannot find add_set index 0 as target kauditd_printk_skb: 6 callbacks suppressed audit: type=1804 audit(1637228103.672:407): pid=32610 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir916629168/syzkaller.GVbr4r/2111/bus" dev="sda1" ino=18804 res=1 Cannot find add_set index 0 as target RSP: 0018:ffff888231c1f748 EFLAGS: 00010212 RAX: 0000000000040000 RBX: 0070700700707007 RCX: ffffc9000acff000 RDX: 000000000000ab17 RSI: ffffffff812b5ed7 RDI: 0000000000000006 IPVS: ftp: loaded support on port[0] = 21 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. audit: type=1804 audit(1637228103.732:408): pid=32617 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir916629168/syzkaller.GVbr4r/2111/bus" dev="sda1" ino=18804 res=1 RBP: 0070700780707007 R08: 0000000000000000 R09: 0070700780707007 IPVS: ftp: loaded support on port[0] = 21 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. R10: 0000000000000006 R11: 0000000000000000 R12: 0070e78700707007 R13: ffff888231c1f7a0 R14: 0000000000000000 R15: 0000000000000286 FS: 00007f9fbb744700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 audit: type=1804 audit(1637228103.752:409): pid=32610 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir916629168/syzkaller.GVbr4r/2111/bus" dev="sda1" ino=18804 res=1 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020208000 CR3: 00000002115f0000 CR4: 00000000003426e0 Cannot find add_set index 0 as target DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 audit: type=1804 audit(1637228103.802:410): pid=32617 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir916629168/syzkaller.GVbr4r/2111/bus" dev="sda1" ino=18804 res=1