panic: disabled syscall

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: ac3af4be Linux 4.19.181
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=15252c1ad00000
kernel config: https://syzkaller.appspot.com/x/.config?x=4f09908a6dd5ae5f
dashboard link: https://syzkaller.appspot.com/bug?extid=e5569ee87956a5a1e84e

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+e5569e...@syzkaller.appspotmail.com

r0 = openat$apparmor_thread_current(0xffffffffffffff9c, &(0x7f0000000040)='/proc/thread-self/attr/current\x00', 0x2, 0x0)
write$apparmor_current(r0, 0x0, 0x0)
executing disabled syscall openat$ptp0
panic: disabled syscall

goroutine 32 [running]:
main.(*Proc).executeRaw(0xc000428400, 0xc00039c4e0, 0xc0030ae700, 0x2, 0x0)
/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:286 +0x5f2
main.(*Proc).execute(0xc000428400, 0xc00039c4e0, 0xc0030ae700, 0x7, 0x2, 0xc0035d50e0)
/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:251 +0x6a
main.(*Proc).loop(0xc000428400)
/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:76 +0xec
created by main.main
/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:291 +0x14d9


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[syzbot]

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