invalid opcode in syscall_trace_enter

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 13af6c74 Linux 4.19.136
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10c0212a900000
kernel config: https://syzkaller.appspot.com/x/.config?x=5b7578d3b5457a49
dashboard link: https://syzkaller.appspot.com/bug?extid=7e544994fbbcd179214d
compiler: gcc (GCC) 10.1.0-syz 20200507

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7e5449...@syzkaller.appspotmail.com

invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3709 Comm: systemd-udevd Not tainted 4.19.136-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:syscall_trace_enter+0xb7/0xd60 arch/x86/entry/common.c:80
Code: 09 00 00 8b 6d 08 31 ff 83 e5 02 89 ee e8 c1 2d 69 00 83 fd 01 19 ed e8 47 2c 69 00 00 00 00 00 00 80 48 b8 00 00 00 00 00 fc <ff> df 65 4c 8b 2c 25 40 ee 01 00 4c 89 ea 81 c5 03 00 00 40 48 c1
RSP: 0018:ffff88808e87fe30 EFLAGS: 00010213
RAX: ffff88808e8725c0 RBX: ffff88808e87ff58 RCX: ffffffff810082ef
RDX: 0000000000000000 RSI: ffffffff810082f9 RDI: 0000000000000005
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 1ffff11011d0ffca
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f31870a88c0(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004dcff0 CR3: 000000008e7f9000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
do_syscall_64+0x486/0x620 arch/x86/entry/common.c:283
entry_SYSCALL_64_after_hwframe+0x49/0xbe
kasan: CONFIG_KASAN_INLINE enabled
RIP: 0033:0x7f3185ef8f17
kasan: GPF could be caused by NULL-ptr deref or user memory access
Code: ff ff ff 48 8b 4d a0 0f b7 51 fe 48 8b 4d a8 66 89 54 08 fe e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 <c3> 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00
RSP: 002b:00007ffd3b097608 EFLAGS: 00000202 ORIG_RAX: 0000000000000027
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3185ef8f17
RDX: 00007ffd3b097640 RSI: 0000000000000007 RDI: 000055f20d3228c0
RBP: 000055f20d3228c0 R08: 000055f20d341324 R09: 0000000000000000
R10: 0000000000000018 R11: 0000000000000202 R12: 00007ffd3b097640
R13: 0000000000000e7d R14: 000055f20d33f590 R15: 000055f20d270a78
Modules linked in:
---[ end trace 33386754da406ee5 ]---
general protection fault: 0000 [#2] PREEMPT SMP KASAN
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:syscall_trace_enter+0xb7/0xd60 arch/x86/entry/common.c:80
CPU: 0 PID: 6727 Comm: syz-executor.2 Tainted: G D 4.19.136-syzkaller #0
Code: 09 00 00 8b 6d 08 31 ff 83 e5 02 89 ee e8 c1 2d 69 00 83 fd 01 19 ed e8 47 2c 69 00 00 00 00 00 00 80 48 b8 00 00 00 00 00 fc <ff> df 65 4c 8b 2c 25 40 ee 01 00 4c 89 ea 81 c5 03 00 00 40 48 c1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RSP: 0018:ffff88808e87fe30 EFLAGS: 00010213
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/paravirt.h:799 [inline]
RIP: 0010:do_syscall_64+0x32/0x620 arch/x86/entry/common.c:280
RAX: ffff88808e8725c0 RBX: ffff88808e87ff58 RCX: ffffffff810082ef
Code: 77 00 70 07 48 89 f5 53 48 89 fb 48 83 ec 08 e8 24 17 69 00 e8 ef 48 6e 00 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 2d 05 00 00 48 83 3d 14 c3 d1 07 00 0f 84 44 04
RDX: 0000000000000000 RSI: ffffffff810082f9 RDI: 0000000000000005
RSP: 0018:ffff88808a33ff40 EFLAGS: 00010046
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
RAX: dffffc0000000000 RBX: 00000000000000e4 RCX: 1ffffffff1238cf4
R10: 0000000000000005 R11: 0000000000000000 R12: 1ffff11011d0ffca
RDX: 0000000000000000 RSI: ffffffff816ee165 RDI: ffffffff81009821
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
RBP: ffff88808a33ff58 R08: 0000000000000000 R09: 0000000000000000
FS: 00007f31870a88c0(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
CR2: 00000000004dcff0 CR3: 000000008e7f9000 CR4: 00000000001426e0
FS: 0000000002af1940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
CR2: 000000000052a178 CR3: 000000008f442000 CR4: 00000000001426f0


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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.