Not allocated shadow for addr ffff880100000000 (page ffffea0006000000) Attempted to access 1088 bytes ------------[ cut here ]------------ kernel BUG at mm/kmsan/kmsan.c:1140! invalid opcode: 0000 [#1] SMP PTI CPU: 1 PID: 7593 Comm: syz-executor5 Not tainted 4.18.0-rc8+ #34 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_get_shadow_address+0x306/0x3d0 mm/kmsan/kmsan.c:1139 Code: 89 31 c0 4c 89 ee 48 89 ca e8 76 15 81 ff 80 3c 25 38 f5 15 8a 00 75 12 48 c7 c7 31 98 49 89 31 c0 48 8b 75 d0 e8 5a 15 81 ff <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 3d ff ff ff 1f 0f 87 70 fd RSP: 0018:ffff8801a326f780 EFLAGS: 00010086 RAX: 000000000000001e RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000001f93 RDI: 0000000000001f94 RBP: ffff8801a326f7b0 R08: 0000000000000000 R09: ffff88021fd39090 R10: 0000000000000000 R11: ffffffff85031d70 R12: 0000000000000001 R13: ffff880100000000 R14: 0000000000000001 R15: 0000000000000440 FS: 00007f224722e700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd73524fdb8 CR3: 00000001ba8d6000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmsan_internal_memset_shadow mm/kmsan/kmsan.c:164 [inline] kmsan_internal_poison_shadow+0x6c/0x1b0 mm/kmsan/kmsan.c:180 kmsan_kmalloc+0x98/0x100 mm/kmsan/kmsan_hooks.c:91 kmsan_slab_alloc+0x10/0x20 mm/kmsan/kmsan_hooks.c:100 slab_post_alloc_hook mm/slab.h:446 [inline] slab_alloc_node mm/slub.c:2720 [inline] slab_alloc mm/slub.c:2728 [inline] kmem_cache_alloc+0xaca/0xb90 mm/slub.c:2733 sk_prot_alloc+0xf3/0x4d0 net/core/sock.c:1475 sk_alloc+0xf0/0xbb0 net/core/sock.c:1535 inet_create+0x780/0x1320 net/ipv4/af_inet.c:320 __sock_create+0x6ee/0xf10 net/socket.c:1287 sock_create net/socket.c:1327 [inline] __sys_socket+0x175/0x630 net/socket.c:1357 __do_sys_socket net/socket.c:1366 [inline] __se_sys_socket net/socket.c:1364 [inline] __x64_sys_socket+0xd8/0x120 net/socket.c:1364 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x457089 Code: fd 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f224722dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f224722e6d4 RCX: 0000000000457089 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d5e20 R14: 00000000004c96cb R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace d07c9f9965b95bda ]--- RIP: 0010:kmsan_get_shadow_address+0x306/0x3d0 mm/kmsan/kmsan.c:1139 Code: 89 31 c0 4c 89 ee 48 89 ca e8 76 15 81 ff 80 3c 25 38 f5 15 8a 00 75 12 48 c7 c7 31 98 49 89 31 c0 48 8b 75 d0 e8 5a 15 81 ff <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 3d ff ff ff 1f 0f 87 70 fd RSP: 0018:ffff8801a326f780 EFLAGS: 00010086 RAX: 000000000000001e RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000001f93 RDI: 0000000000001f94 RBP: ffff8801a326f7b0 R08: 0000000000000000 R09: ffff88021fd39090 R10: 0000000000000000 R11: ffffffff85031d70 R12: 0000000000000001 R13: ffff880100000000 R14: 0000000000000001 R15: 0000000000000440 FS: 00007f224722e700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd73524fdb8 CR3: 00000001ba8d6000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400