FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 Attempted to access 1464 bytes ------------[ cut here ]------------ CPU: 0 PID: 13037 Comm: syz-executor3 Not tainted 4.18.0-rc8+ #34 kernel BUG at mm/kmsan/kmsan.c:1140! Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 invalid opcode: 0000 [#1] SMP PTI Call Trace: CPU: 1 PID: 13040 Comm: syz-executor6 Not tainted 4.18.0-rc8+ #34 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x17c/0x1c0 lib/dump_stack.c:113 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x867/0xaa0 lib/fault-inject.c:149 RIP: 0010:kmsan_get_shadow_address+0x306/0x3d0 mm/kmsan/kmsan.c:1139 __should_failslab+0x278/0x2a0 mm/failslab.c:32 Code: should_failslab+0x29/0x70 mm/slab_common.c:1557 89 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc_node mm/slub.c:2646 [inline] slab_alloc mm/slub.c:2728 [inline] __kmalloc+0xbe/0x350 mm/slub.c:3776 31 c0 4c 89 kmalloc_array include/linux/slab.h:635 [inline] sctp_stream_alloc_out net/sctp/stream.c:96 [inline] sctp_stream_init+0x266/0xd20 net/sctp/stream.c:159 ee 48 89 ca sctp_association_init net/sctp/associola.c:248 [inline] sctp_association_new+0x1767/0x2d60 net/sctp/associola.c:312 e8 76 sctp_sendmsg_new_asoc net/sctp/socket.c:1740 [inline] sctp_sendmsg+0x46aa/0x5f60 net/sctp/socket.c:2097 15 81 inet_sendmsg+0x49a/0x740 net/ipv4/af_inet.c:798 ff 80 3c 25 38 sock_sendmsg_nosec net/socket.c:642 [inline] sock_sendmsg net/socket.c:652 [inline] __sys_sendto+0x6a3/0x7c0 net/socket.c:1798 f5 15 8a 00 75 __do_sys_sendto net/socket.c:1810 [inline] __se_sys_sendto net/socket.c:1806 [inline] __x64_sys_sendto+0x1a1/0x210 net/socket.c:1806 12 48 c7 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 c7 31 entry_SYSCALL_64_after_hwframe+0x63/0xe7 98 RIP: 0033:0x457089 49 89 Code: 31 fd c0 48 b4 8b fb 75 d0 ff e8 5a c3 15 81 66 ff <0f> 2e 0b 0f 0f 1f 1f 84 84 00 00 00 00 00 00 00 00 eb 00 fe 48 00 3d ff 66 ff ff 90 1f 0f 48 87 89 70 fd f8 48 RSP: 0018:ffff88011771f770 EFLAGS: 00010086 89 f7 RAX: 000000000000001e RBX: 0000000000000000 RCX: 0000000000000000 48 RDX: 0000000000000000 RSI: 00000000000014cf RDI: 00000000000014d0 89 RBP: ffff88011771f7a0 R08: 000000478f8f8021 R09: ffff88021fd39090 d6 R10: 0000000000000000 R11: 00000000ffff0a01 R12: 0000000000000001 48 R13: ffff880100000000 R14: 0000000000000001 R15: 00000000000005b8 89 FS: 00007fca43bb4700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 ca CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045573a CR3: 000000011d57c000 CR4: 00000000001406e0 4d DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 89 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 c2 Call Trace: 4d kmsan_internal_memset_shadow mm/kmsan/kmsan.c:164 [inline] kmsan_internal_poison_shadow+0x6c/0x1b0 mm/kmsan/kmsan.c:180 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d kmsan_kmalloc+0x98/0x100 mm/kmsan/kmsan_hooks.c:91 01 kmsan_slab_alloc+0x10/0x20 mm/kmsan/kmsan_hooks.c:100 f0 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 ff ff sk_prot_alloc+0xf3/0x4d0 net/core/sock.c:1475 0f sk_alloc+0xf0/0xbb0 net/core/sock.c:1535 83 inet6_create+0x786/0x1660 net/ipv6/af_inet6.c:183 cb b4 __sock_create+0x6ee/0xf10 net/socket.c:1287 fb sock_create net/socket.c:1327 [inline] __sys_socket+0x175/0x630 net/socket.c:1357 ff c3 __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 66 2e do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 0f entry_SYSCALL_64_after_hwframe+0x63/0xe7 1f RIP: 0033:0x457089 84 Code: 00 fd 00 b4 00 fb ff 00 c3 66 2e RSP: 002b:00007f02b0775c78 EFLAGS: 00000246 0f 1f ORIG_RAX: 000000000000002c 84 00 RAX: ffffffffffffffda RBX: 00007f02b07766d4 RCX: 0000000000457089 00 RDX: 0000000000000001 RSI: 0000000020000140 RDI: 0000000000000004 00 RBP: 00000000009300a0 R08: 0000000020000000 R09: 000000000000001c 00 00 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 66 90 R13: 00000000004d4190 R14: 00000000004c8b54 R15: 0000000000000003 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:00007fca43bb3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007fca43bb46d4 RCX: 0000000000457089 RDX: 0000000000000084 RSI: 0000010000000005 RDI: 000000000000000a RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d5dc8 R14: 00000000004c96a3 R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace e7c1f67a3026da4c ]--- 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:ffff88011771f770 EFLAGS: 00010086 RAX: 000000000000001e RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 00000000000014cf RDI: 00000000000014d0 RBP: ffff88011771f7a0 R08: 000000478f8f8021 R09: ffff88021fd39090 R10: 0000000000000000 R11: 00000000ffff0a01 R12: 0000000000000001 R13: ffff880100000000 R14: 0000000000000001 R15: 00000000000005b8 FS: 00007fca43bb4700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045573a CR3: 000000011d57c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400