kauditd_printk_skb: 9 callbacks suppressed audit: type=1400 audit(1538734827.771:35): avc: denied { map } for pid=5907 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1538734844.491:36): avc: denied { map } for pid=5919 comm="syz-executor953" path="/root/syz-executor953306555" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 ------------[ cut here ]------------ kernel BUG at security/keys/keyring.c:1214! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5919 Comm: syz-executor953 Not tainted 4.19.0-rc6+ #47 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__key_link_begin+0x23a/0x300 security/keys/keyring.c:1214 Code: fe 48 c7 c7 20 ae 67 89 e8 b3 36 23 fe eb ac e8 ec 64 42 fe 48 c7 c7 20 ae 67 89 e8 30 73 73 04 e9 e3 fe ff ff e8 d6 64 42 fe <0f> 0b e8 cf 64 42 fe 48 8d bb ce 00 00 00 48 b8 00 00 00 00 00 fc RSP: 0018:ffff8801c31b7b10 EFLAGS: 00010293 RAX: ffff8801c5c8a040 RBX: ffff8801d4e32080 RCX: ffffffff833c4ebf RDX: 0000000000000000 RSI: ffffffff833c50aa RDI: 0000000000000007 RBP: ffff8801c31b7b40 R08: ffff8801c5c8a040 R09: fffffbfff12cf4a4 R10: fffffbfff12cf4a4 R11: ffffffff8967a523 R12: ffff8801c31b7c48 R13: 0000000000000000 R14: ffff8801d4e32200 R15: ffff8801d4e32080 FS: 0000000001954880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020cab000 CR3: 00000001c7fbb000 CR4: 00000000001406e0 Call Trace: construct_alloc_key security/keys/request_key.c:389 [inline] construct_key_and_link security/keys/request_key.c:480 [inline] request_key_and_link+0x737/0x17a0 security/keys/request_key.c:593 __do_sys_request_key security/keys/keyctl.c:213 [inline] __se_sys_request_key security/keys/keyctl.c:158 [inline] __x64_sys_request_key+0x305/0x400 security/keys/keyctl.c:158 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x440169 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff651a76c8 EFLAGS: 00000217 ORIG_RAX: 00000000000000f9 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440169 RDX: 00000000200001c0 RSI: 0000000020000180 RDI: 00000000200000c0 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000004e87c1a R11: 0000000000000217 R12: 00000000004019f0 R13: 0000000000401a80 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace f616935cee66aba3 ]--- RIP: 0010:__key_link_begin+0x23a/0x300 security/keys/keyring.c:1214 Code: fe 48 c7 c7 20 ae 67 89 e8 b3 36 23 fe eb ac e8 ec 64 42 fe 48 c7 c7 20 ae 67 89 e8 30 73 73 04 e9 e3 fe ff ff e8 d6 64 42 fe <0f> 0b e8 cf 64 42 fe 48 8d bb ce 00 00 00 48 b8 00 00 00 00 00 fc RSP: 0018:ffff8801c31b7b10 EFLAGS: 00010293 RAX: ffff8801c5c8a040 RBX: ffff8801d4e32080 RCX: ffffffff833c4ebf RDX: 0000000000000000 RSI: ffffffff833c50aa RDI: 0000000000000007 RBP: ffff8801c31b7b40 R08: ffff8801c5c8a040 R09: fffffbfff12cf4a4 R10: fffffbfff12cf4a4 R11: ffffffff8967a523 R12: ffff8801c31b7c48 R13: 0000000000000000 R14: ffff8801d4e32200 R15: ffff8801d4e32080 FS: 0000000001954880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020cab000 CR3: 00000001c7fbb000 CR4: 00000000001406e0