hash_alloc_result crypto/algif_hash.c:65 [inline] hash_recvmsg+0x567/0xa60 crypto/algif_hash.c:205 sock_recvmsg_nosec+0x8c/0xb0 net/socket.c:795 ___sys_recvmsg+0x273/0x580 net/socket.c:2277 kobject: 'kvm' (000000003e7a09dd): fill_kobj_path: path = '/devices/virtual/misc/kvm' __sys_recvmmsg+0x27e/0x790 net/socket.c:2389 general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11626 Comm: syz-executor.5 Not tainted 4.19.34 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:sctp_timeout_obj_to_nlattr+0x96/0x170 net/netfilter/nf_conntrack_proto_sctp.c:628 do_sys_recvmmsg net/socket.c:2465 [inline] do_sys_recvmmsg+0x181/0x1a0 net/socket.c:2454 Code: f3 65 48 8b 14 25 28 00 00 00 48 89 55 d0 31 d2 48 89 85 70 ff ff ff e8 b8 cd d3 fb 48 8b 8d 70 ff ff ff 48 89 d8 48 c1 e8 03 <0f> b6 14 08 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a3 RSP: 0018:ffff88806364f3c8 EFLAGS: 00010247 RAX: 0000000000000000 RBX: 0000000000000004 RCX: dffffc0000000000 RDX: 0000000000040000 RSI: ffffffff85976988 RDI: 1ffff1100c6c9e7b RBP: ffff88806364f460 R08: ffff888092ade000 R09: ffff8880633debe8 R10: ffffed100c67bd7c R11: ffff8880633debe0 R12: ffffffff87e13780 R13: 0000000000000001 R14: ffff88809b56b080 R15: ffff88806364f438 __do_sys_recvmmsg net/socket.c:2483 [inline] __se_sys_recvmmsg net/socket.c:2479 [inline] __x64_sys_recvmmsg+0xbe/0x150 net/socket.c:2479 FS: 00007f9ef66a0700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 entry_SYSCALL_64_after_hwframe+0x49/0xbe CR2: 00000000004e5ee0 CR3: 000000009bbc2000 CR4: 00000000001426f0 RIP: 0033:0x458c29 Call Trace: Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f55237d9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f55237d9c90 RCX: 0000000000458c29 cttimeout_default_fill_info net/netfilter/nfnetlink_cttimeout.c:424 [inline] cttimeout_default_get+0x69a/0xa80 net/netfilter/nfnetlink_cttimeout.c:471 RDX: 0000000000000500 RSI: 0000000020007e00 RDI: 0000000000000005 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f55237da6d4 R13: 00000000004c59a9 R14: 00000000004d9b98 R15: 0000000000000006 nfnetlink_rcv_msg+0xd12/0xfe0 net/netfilter/nfnetlink.c:228 audit: type=1400 audit(1555019666.561:93): avc: denied { write } for pid=11625 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 netlink_rcv_skb+0x180/0x460 net/netlink/af_netlink.c:2454 nfnetlink_rcv+0x1c0/0x460 net/netfilter/nfnetlink.c:560 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53c/0x720 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:632 ___sys_sendmsg+0x806/0x930 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458c29 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9ef669fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9ef66a06d4 R13: 00000000004c632a R14: 00000000004da8e8 R15: 00000000ffffffff Modules linked in: ---[ end trace 56dc6db564c79221 ]--- RIP: 0010:sctp_timeout_obj_to_nlattr+0x96/0x170 net/netfilter/nf_conntrack_proto_sctp.c:628 kobject: 'loop4' (000000002658b375): kobject_uevent_env kobject: 'loop4' (000000002658b375): fill_kobj_path: path = '/devices/virtual/block/loop4' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 Code: f3 65 48 8b 14 25 28 00 00 00 48 89 55 d0 31 d2 48 89 85 70 ff ff ff e8 b8 cd d3 fb 48 8b 8d 70 ff ff ff 48 89 d8 48 c1 e8 03 <0f> b6 14 08 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 a3 CPU: 1 PID: 11643 Comm: syz-executor.4 Tainted: G D 4.19.34 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop1' (0000000063f69ccc): kobject_uevent_env Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'loop1' (0000000063f69ccc): fill_kobj_path: path = '/devices/virtual/block/loop1' __should_failslab+0x121/0x190 mm/failslab.c:32 kobject: 'loop2' (000000007392f8c6): kobject_uevent_env should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x2e5/0x750 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] sock_kmalloc net/core/sock.c:1984 [inline] sock_kmalloc+0xc6/0x120 net/core/sock.c:1975 hash_alloc_result.part.0+0x95/0x110 crypto/algif_hash.c:46 RSP: 0018:ffff88806364f3c8 EFLAGS: 00010247 hash_alloc_result crypto/algif_hash.c:65 [inline] hash_recvmsg+0x567/0xa60 crypto/algif_hash.c:205 sock_recvmsg_nosec+0x8c/0xb0 net/socket.c:795 ___sys_recvmsg+0x273/0x580 net/socket.c:2277 kobject: 'loop2' (000000007392f8c6): fill_kobj_path: path = '/devices/virtual/block/loop2' __sys_recvmmsg+0x27e/0x790 net/socket.c:2389 RAX: 0000000000000000 RBX: 0000000000000004 RCX: dffffc0000000000 RDX: 0000000000040000 RSI: ffffffff85976988 RDI: 1ffff1100c6c9e7b RBP: ffff88806364f460 R08: ffff888092ade000 R09: ffff8880633debe8 do_sys_recvmmsg net/socket.c:2465 [inline] do_sys_recvmmsg+0x181/0x1a0 net/socket.c:2454 R10: ffffed100c67bd7c R11: ffff8880633debe0 R12: ffffffff87e13780 R13: 0000000000000001 R14: ffff88809b56b080 R15: ffff88806364f438 __do_sys_recvmmsg net/socket.c:2483 [inline] __se_sys_recvmmsg net/socket.c:2479 [inline] __x64_sys_recvmmsg+0xbe/0x150 net/socket.c:2479 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe FS: 00007f9ef66a0700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 RIP: 0033:0x458c29 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f55237d9c78 EFLAGS: 00000246 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f55237d9c90 RCX: 0000000000458c29 RDX: 0000000000000500 RSI: 0000000020007e00 RDI: 0000000000000005 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f55237da6d4 CR2: 000000000088bf40 CR3: 000000009bbc2000 CR4: 00000000001426f0 R13: 00000000004c59a9 R14: 00000000004d9b98 R15: 0000000000000006 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop2' (000000007392f8c6): kobject_uevent_env