kasan: CONFIG_KASAN_INLINE enabled audit: type=1326 audit(1545628959.267:39): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=19992 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=40000003 syscall=265 compat=1 ip=0xf7f5ba49 code=0x7ffc0000 kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env CPU: 1 PID: 20057 Comm: syz-executor5 Not tainted 4.20.0-rc7+ #288 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline] RIP: 0010:keyctl_pkey_params_get+0x2e7/0x560 security/keys/keyctl_pkey.c:96 Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f8 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e1 01 00 00 41 0f b6 04 24 RSP: 0018:ffff8881b8977a40 EFLAGS: 00010206 RAX: 0000000000000000 RBX: ffff8881b8977d08 RCX: ffffc9000a01f000 RDX: 0000000000000005 RSI: ffffffff833fc73e RDI: 0000000000000001 kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env RBP: ffff8881b8977bb0 R08: ffff8881ba2485c0 R09: ffffed1037eed310 kobject: 'loop4' (000000001b98e6d9): kobject_uevent_env R10: ffffed1037eed310 R11: 0000000000000001 R12: 0000000000000005 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881daf00000(0063) knlGS:00000000f5fabb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' CR2: 0000000008147cc8 CR3: 00000001b9f9a000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' keyctl_pkey_params_get_2+0x12f/0x580 security/keys/keyctl_pkey.c:130 kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' keyctl_pkey_verify+0xaa/0x400 security/keys/keyctl_pkey.c:293 kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env __do_compat_sys_keyctl security/keys/compat.c:159 [inline] __se_compat_sys_keyctl security/keys/compat.c:59 [inline] __ia32_compat_sys_keyctl+0x10a/0x430 security/keys/compat.c:59 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397 kobject: 'loop4' (000000001b98e6d9): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7fafa49 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env RSP: 002b:00000000f5fab0cc EFLAGS: 00000296 ORIG_RAX: 0000000000000120 RAX: ffffffffffffffda RBX: 000000000000001c RCX: 000000002041bba7 RDX: 00000000200001c0 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 8a702cf001a666ef ]--- RIP: 0010:keyctl_pkey_params_parse security/keys/keyctl_pkey.c:56 [inline] RIP: 0010:keyctl_pkey_params_get+0x2e7/0x560 security/keys/keyctl_pkey.c:96 kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'loop0' (000000000a819387): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f8 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e1 01 00 00 41 0f b6 04 24 kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'loop0' (000000000a819387): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env audit: type=1326 audit(1545628959.267:40): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=19992 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f5ba49 code=0x7ffc0000 kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' audit: type=1326 audit(1545628959.267:41): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=19992 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f5ba49 code=0x7ffc0000 kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env RSP: 0018:ffff8881b8977a40 EFLAGS: 00010206 kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env RAX: 0000000000000000 RBX: ffff8881b8977d08 RCX: ffffc9000a01f000 kobject: 'loop2' (00000000340f617a): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' audit: type=1326 audit(1545628959.267:42): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=19992 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=40000003 syscall=265 compat=1 ip=0xf7f5ba49 code=0x7ffc0000 kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'loop2' (00000000340f617a): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env RDX: 0000000000000005 RSI: ffffffff833fc73e RDI: 0000000000000001 RBP: ffff8881b8977bb0 R08: ffff8881ba2485c0 R09: ffffed1037eed310 R10: ffffed1037eed310 R11: 0000000000000001 R12: 0000000000000005 kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (000000000a819387): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' audit: type=1326 audit(1545628959.267:43): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=19992 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=40000003 syscall=295 compat=1 ip=0xf7f5ba49 code=0x7ffc0000 kobject: 'loop0' (000000000a819387): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (00000000ec613194): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (00000000ec613194): fill_kobj_path: path = '/devices/virtual/block/loop1' R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): kobject_uevent_env FS: 0000000000000000(0000) GS:ffff8881dae00000(0063) knlGS:00000000f5fabb40 kobject: 'loop2' (00000000340f617a): kobject_uevent_env kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000f1aa4d6c): fill_kobj_path: path = '/devices/virtual/misc/kvm' CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 kobject: 'loop2' (00000000340f617a): fill_kobj_path: path = '/devices/virtual/block/loop2' CR2: 000000002ea21000 CR3: 00000001b9f9a000 CR4: 00000000001426f0 kobject: 'loop1' (00000000ec613194): kobject_uevent_env DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'loop1' (00000000ec613194): fill_kobj_path: path = '/devices/virtual/block/loop1' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'loop4' (000000001b98e6d9): kobject_uevent_env