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kernel BUG at net/core/dev.c:8984!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 31105 Comm: syz-executor.4 Not tainted 4.19.194-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:netdev_run_todo+0x8ac/0xab0 net/core/dev.c:8984
Code: 27 eb fa e8 b6 66 04 00 eb cb e8 0f 27 eb fa 48 8b 7c 24 28 e8 b5 21 fe ff e9 6f fe ff ff e8 fb 26 eb fa 0f 0b e8 f4 26 eb fa <0f> 0b e8 ed 26 eb fa 0f 0b 48 c7 c7 f4 c7 26 8b e8 4f f1 20 fb e9
RSP: 0018:ffff88822b507d18 EFLAGS: 00010293
RAX: ffff8880b4d1e400 RBX: ffff88800010af10 RCX: ffffffff8677500d
RDX: 0000000000000000 RSI: ffffffff867752ec RDI: 0000000000000005
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88800010b3c8 R14: 0000000000000002 R15: dffffc0000000000
FS:  00000000022be400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe85bcedd8 CR3: 00000002219d8000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ppp_release+0x152/0x1e0 drivers/net/ppp/ppp_generic.c:410
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4193eb
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffc91c88200 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00000000004193eb
RDX: 0000000000570148 RSI: ffffffff8167a2ea RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b30a20ac8
R10: 00000000000004ef R11: 0000000000000293 R12: 000000000010a1b4
R13: 00000000000003e8 R14: 000000000056bf80 R15: 000000000010a1a7
Modules linked in:
---[ end trace 3d9afb3f0e99a770 ]---
RIP: 0010:netdev_run_todo+0x8ac/0xab0 net/core/dev.c:8984
Code: 27 eb fa e8 b6 66 04 00 eb cb e8 0f 27 eb fa 48 8b 7c 24 28 e8 b5 21 fe ff e9 6f fe ff ff e8 fb 26 eb fa 0f 0b e8 f4 26 eb fa <0f> 0b e8 ed 26 eb fa 0f 0b 48 c7 c7 f4 c7 26 8b e8 4f f1 20 fb e9
RSP: 0018:ffff88822b507d18 EFLAGS: 00010293
RAX: ffff8880b4d1e400 RBX: ffff88800010af10 RCX: ffffffff8677500d
RDX: 0000000000000000 RSI: ffffffff867752ec RDI: 0000000000000005
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88800010b3c8 R14: 0000000000000002 R15: dffffc0000000000
FS:  00000000022be400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa2bcdea028 CR3: 00000002219d8000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400