kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 29050 Comm: syz-executor2 Not tainted 4.20.0-rc2+ #241
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+0x2e7/0x550 security/keys/keyctl_pkey.c:96
Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f7 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 e0 01 00 00 41 0f b6 04 24
------------[ cut here ]------------
RSP: 0018:ffff88814bf27a40 EFLAGS: 00010246
downgrading a read lock
WARNING: CPU: 0 PID: 29053 at kernel/locking/lockdep.c:3556 __lock_downgrade kernel/locking/lockdep.c:3556 [inline]
WARNING: CPU: 0 PID: 29053 at kernel/locking/lockdep.c:3556 lock_downgrade+0x4d7/0x900 kernel/locking/lockdep.c:3819
RAX: 0000000000000005 RBX: ffff88814bf27d08 RCX: ffffc90010fc2000
Kernel panic - not syncing: panic_on_warn set ...
RDX: 0000000000000000 RSI: ffffffff8342ad1e RDI: 0000000000000001
RBP: ffff88814bf27ba8 R08: ffff8881bbf8a580 R09: ffffed1039dfc980
R10: ffffed1039dfc980 R11: 0000000000000004 R12: 0000000000000028
R13: dffffc0000000000 R14: ffffffffffffffff R15: ffffffffffffffff
FS:  0000000000000000(0000) GS:ffff8881daf00000(0063) knlGS:00000000f5fc9b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00007ffe6938e020 CR3: 00000001bed42000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 keyctl_pkey_params_get_2+0x12f/0x580 security/keys/keyctl_pkey.c:130
 keyctl_pkey_e_d_s+0xb0/0x4f0 security/keys/keyctl_pkey.c:218
 __do_compat_sys_keyctl security/keys/compat.c:154 [inline]
 __se_compat_sys_keyctl security/keys/compat.c:59 [inline]
 __ia32_compat_sys_keyctl+0x13d/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
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7fcda29
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
RSP: 002b:00000000f5fc90cc EFLAGS: 00000296 ORIG_RAX: 0000000000000120
RAX: ffffffffffffffda RBX: 000000000000001b RCX: 0000000020000080
RDX: 00000000200000c0 RSI: 0000000000000053 RDI: 00000000200001c0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
Kernel Offset: disabled
Rebooting in 86400 seconds..