WARNING in get_signal (2)

Status: auto-closed as invalid on 2020/03/18 06:40
Reported-by: syzbot+c620887b6a5d61dbb152@syzkaller.appspotmail.com
First crash: 2623d, last: 2444d
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-44 WARNING in get_signal -1 syz 15 2728d 3101d 0/2 closed as invalid on 2019/03/28 00:23
linux-4.14 WARNING in get_signal -1 syz, C error 3 2116d 2593d 0/1 upstream: reported C repro on 2019/06/23 01:46
upstream WARNING in get_signal kernel -1 syz, C done 2 2123d 2125d 15/29 fixed on 2020/11/16 12:12
linux-4.19 WARNING in get_signal -1 syz, C error 2 2142d 2602d 0/1 upstream: reported C repro on 2019/06/13 12:31

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 2119 at kernel/signal.c:2090 do_jobctl_trap kernel/signal.c:2090 [inline]()
WARNING: CPU: 1 PID: 2119 at kernel/signal.c:2090 get_signal+0x12d4/0x1570 kernel/signal.c:2209()
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 2119 Comm: syz-executor.3 Not tainted 4.4.174+ #4
 0000000000000000 64969682bfd542a3 ffff8801c0c0fad8 ffffffff81aad1a1
 0000000000000000 ffffffff82835ee0 ffffffff8283bd40 000000000000082a
 ffffffff81101854 ffff8801c0c0fbb8 ffffffff813a48c2 0000000041b58ab3
Call Trace:
 [<ffffffff81aad1a1>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81aad1a1>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<ffffffff813a48c2>] panic+0x1b9/0x37b kernel/panic.c:112
 [<ffffffff813a4ab9>] warn_slowpath_common kernel/panic.c:455 [inline]
 [<ffffffff813a4ab9>] warn_slowpath_common.cold+0x20/0x20 kernel/panic.c:435
 [<ffffffff810d3aaa>] warn_slowpath_null+0x2a/0x30 kernel/panic.c:492
 [<ffffffff81101854>] do_jobctl_trap kernel/signal.c:2090 [inline]
 [<ffffffff81101854>] get_signal+0x12d4/0x1570 kernel/signal.c:2209
 [<ffffffff8100bd4c>] do_signal+0x9c/0x1840 arch/x86/kernel/signal.c:712
 [<ffffffff81003da7>] exit_to_usermode_loop+0x127/0x170 arch/x86/entry/common.c:184
 [<ffffffff8100569b>] prepare_exit_to_usermode arch/x86/entry/common.c:221 [inline]
 [<ffffffff8100569b>] syscall_return_slowpath+0x25b/0x2e0 arch/x86/entry/common.c:286
 [<ffffffff82718ce1>] int_ret_from_sys_call+0x25/0xa3
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/11/19 06:39 https://android.googlesource.com/kernel/common android-4.4 62872f952d6b 5bc70212 .config console log report ci-android-44-kasan-gce
2019/07/23 15:38 https://android.googlesource.com/kernel/common android-4.4 62872f952d6b de453f34 .config console log report ci-android-44-kasan-gce-386
2019/06/29 04:49 https://android.googlesource.com/kernel/common android-4.4 62872f952d6b 7509bf36 .config console log report ci-android-44-kasan-gce-386
2019/06/14 14:55 https://android.googlesource.com/kernel/common android-4.4 62872f952d6b 998ccc76 .config console log report ci-android-44-kasan-gce-386
2019/05/24 03:30 https://android.googlesource.com/kernel/common android-4.4 62872f952d6b 0dadcd9d .config console log report ci-android-44-kasan-gce-386
* Struck through repros no longer work on HEAD.