panic: wait failed: the process NUM:NUM exited: 1f (err <nil>) (2)

Status: fixed on 2020/02/27 08:57
Reported-by: syzbot+02e574a5f1227e7deef5@syzkaller.appspotmail.com
Fix commit: 17c18241cdeb platform/syscall: use syscall + int3 to execute a system call in a stub process
First crash: 2457d, last: 2427d

Sample crash report:
panic: wait failed: the process 42962:47275 exited: 1f (err <nil>)
Registers:
	R15	 = 000000000000cadf
	R14	 = 000000c000120f00
	R13	 = 0000000001ac33a0
	R12	 = 000000c0002dbcf0
	Rbp	 = 000000c0002dbe90
	Rbx	 = 0000000000000001
	R11	 = 0000000000000206
	R10	 = 0000000000000011
	R9	 = 0000000027c92000
	R8	 = 000000000000000b
	Rax	 = 0000000000000009
	Rcx	 = 00007fffffff0053
	Rdx	 = 0000000000000003
	Rsi	 = 00000000001ae000
	Rdi	 = 00007fc303400000
	Orig_rax = 000000000000003e
	Rip	 = 00007fffffff0051
	Cs	 = 0000000000000033
	Eflags	 = 0000000000000206
	Rsp	 = 000000c0002dbcf0
	Ss	 = 000000000000002b
	Fs_base	 = 0000000004282880
	Gs_base	 = 0000000000000000
	Ds	 = 0000000000000000
	Es	 = 0000000000000000
	Fs	 = 0000000000000000
	Gs	 = 0000000000000000
stubStart	 = 00007fffffff0000

Crashes (17):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/01/05 13:55 https://gvisor.googlesource.com/gvisor master 83ab47e87bad 68256974 .config console log report ci-gvisor-ptrace-direct-overlay-host-race
2020/01/05 05:32 https://gvisor.googlesource.com/gvisor master 83ab47e87bad 68256974 .config console log report ci-gvisor-ptrace-direct-overlay-host
2020/01/05 04:14 https://gvisor.googlesource.com/gvisor master 83ab47e87bad 68256974 .config console log report ci-gvisor-ptrace-direct-overlay-host
2020/01/03 14:53 https://gvisor.googlesource.com/gvisor master 1f384ac42b9e 9dcc1191 .config console log report ci-gvisor-main
2020/01/02 17:42 https://gvisor.googlesource.com/gvisor master 1f384ac42b9e 7f117e28 .config console log report ci-gvisor-ptrace-direct-overlay-host
2020/01/01 23:12 https://gvisor.googlesource.com/gvisor master 1f384ac42b9e 7f117e28 .config console log report ci-gvisor-ptrace-proxy-sandbox-race
2019/12/31 09:48 https://gvisor.googlesource.com/gvisor master 1f384ac42b9e 7f117e28 .config console log report ci-gvisor-ptrace-direct-overlay-host
2019/12/28 03:06 https://gvisor.googlesource.com/gvisor master 796f53c0befc 8b967267 .config console log report ci-gvisor-main
2019/12/21 09:40 https://gvisor.googlesource.com/gvisor master d1528df71502 34011c05 .config console log report ci-gvisor-main
2019/12/18 03:32 https://gvisor.googlesource.com/gvisor master 3ab90ecf2562 64ca0a37 .config console log report ci-gvisor-ptrace-direct-overlay-host
2019/12/17 10:58 https://gvisor.googlesource.com/gvisor master 0881abdfdda6 2b31345f .config console log report ci-gvisor-ptrace-direct-overlay-host
2019/12/16 08:58 https://gvisor.googlesource.com/gvisor master 6b424530397e 0ae38e44 .config console log report ci-gvisor-ptrace-direct-overlay-host
2019/12/14 07:09 https://gvisor.googlesource.com/gvisor master ad80dcf47077 5b2ca5da .config console log report ci-gvisor-main
2019/12/12 22:28 https://gvisor.googlesource.com/gvisor master 007707a07266 2a752b7c .config console log report ci-gvisor-main
2019/12/09 19:32 https://gvisor.googlesource.com/gvisor master 01eadf51ea54 b31eda3d .config console log report ci-gvisor-ptrace-direct-overlay-host-race
2019/12/09 04:28 https://gvisor.googlesource.com/gvisor master 01eadf51ea54 1508f453 .config console log report ci-gvisor-ptrace-direct-overlay-host
2019/12/06 23:59 https://gvisor.googlesource.com/gvisor master b0066217ecd8 85f26751 .config console log report ci-gvisor-ptrace-proxy-sandbox-race
* Struck through repros no longer work on HEAD.