bisecting fixing commit since 7edd66cf61670d2d0c31f89cb3a247016e489a8a
building syzkaller on 03d97a1bcdd0542ca2240cf468d9be585cfc06b7
testing commit 7edd66cf61670d2d0c31f89cb3a247016e489a8a with gcc (GCC) 8.1.0
kernel signature: 739653e2b43c44eaca161681728bfd139f5a573e5325b4947303e8b014c69d44
all runs: crashed: INFO: trying to register non-static key in uhid_dev_destroy
testing current HEAD 1bab61d3e8cd96f2badf515dcb06e4e1029bc017
testing commit 1bab61d3e8cd96f2badf515dcb06e4e1029bc017 with gcc (GCC) 8.1.0
kernel signature: 7257f75a26ca472a811d782091aa985a631dd87a1871f41bb4ac9555f9980b16
run #0: crashed: INFO: trying to register non-static key in uhid_dev_destroy
run #1: crashed: INFO: trying to register non-static key in corrupted
run #2: crashed: INFO: trying to register non-static key in uhid_dev_destroy
run #3: crashed: INFO: trying to register non-static key in uhid_dev_destroy
run #4: crashed: INFO: trying to register non-static key in uhid_dev_destroy
run #5: crashed: INFO: trying to register non-static key in uhid_dev_destroy
run #6: crashed: INFO: trying to register non-static key in uhid_dev_destroy
run #7: crashed: INFO: trying to register non-static key in uhid_dev_destroy
run #8: crashed: INFO: trying to register non-static key in uhid_dev_destroy
run #9: crashed: INFO: trying to register non-static key in uhid_dev_destroy
revisions tested: 2, total time: 25m11.922641409s (build: 16m45.95839694s, test: 7m55.813938775s)
the crash still happens on HEAD
commit msg: Linux 4.19.124
crash: INFO: trying to register non-static key in uhid_dev_destroy
hid-generic 0000:4000:0000.0AD3: hidraw0: <UNKNOWN> HID v0.00 Device [syz1] on s�z1
hid-generic 0000:4000:0000.0AD2: hidraw3: <UNKNOWN> HID v0.00 Device [syz1] on s�z1
hid-generic 0000:4000:0000.0AD4: ignoring exceeding usage max
hid-generic 0000:4000:0000.0AD4: hidraw0: <UNKNOWN> HID v0.00 Device [syz1] on s�z1
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 9574 Comm: syz-executor.5 Not tainted 4.19.124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x123/0x177 lib/dump_stack.c:118
 assign_lock_key kernel/locking/lockdep.c:727 [inline]
 register_lock_class+0x207f/0x2350 kernel/locking/lockdep.c:753
 __lock_acquire+0x160/0x4980 kernel/locking/lockdep.c:3303
 lock_acquire+0x173/0x3d0 kernel/locking/lockdep.c:3907
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
 __wake_up_common_lock+0xba/0x180 kernel/sched/wait.c:120
 __wake_up+0xe/0x10 kernel/sched/wait.c:145
 uhid_dev_destroy+0x57/0xe0 drivers/hid/uhid.c:566
 uhid_char_release+0x4d/0xb0 drivers/hid/uhid.c:645
 __fput+0x249/0x7f0 fs/file_table.c:278
 ____fput+0x9/0x10 fs/file_table.c:309
 task_work_run+0x108/0x180 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x1a9/0x200 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+0x413/0x4e0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x416421
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffc7da68730 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000416421
RDX: 0000000000000001 RSI: 0000000000790460 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffc7da68820 R11: 0000000000000293 R12: 0000000000790560
R13: 0000000000022650 R14: ffffffffffffffff R15: 000000000078bfac
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9574 Comm: syz-executor.5 Not tainted 4.19.124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__wake_up_common+0xdb/0x600 kernel/sched/wait.c:85
Code: 05 00 00 4c 8b 43 38 49 83 e8 18 49 8d 78 18 48 39 7d d0 0f 84 54 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 f9 04 00 00 49 8b 40 18 89 55 b8 31 db 49 be 00
RSP: 0018:ffff88808994fc90 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff888072b84908 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff88808994fce0 R08: ffffffffffffffe8 R09: ffff88808994fd20
R10: ffffed100e570921 R11: ffff888072b8490b R12: 0000000000000001
R13: ffff88808994fd20 R14: 0000000000000000 R15: ffff8880a48a8020
FS:  000000000104e940(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000b90004 CR3: 00000000a8e1a000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __wake_up_common_lock+0xde/0x180 kernel/sched/wait.c:121
 __wake_up+0xe/0x10 kernel/sched/wait.c:145
 uhid_dev_destroy+0x57/0xe0 drivers/hid/uhid.c:566
 uhid_char_release+0x4d/0xb0 drivers/hid/uhid.c:645
 __fput+0x249/0x7f0 fs/file_table.c:278
 ____fput+0x9/0x10 fs/file_table.c:309
 task_work_run+0x108/0x180 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x1a9/0x200 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+0x413/0x4e0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x416421
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffc7da68730 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000416421
RDX: 0000000000000001 RSI: 0000000000790460 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffc7da68820 R11: 0000000000000293 R12: 0000000000790560
R13: 0000000000022650 R14: ffffffffffffffff R15: 000000000078bfac
Modules linked in:
---[ end trace 96436a4498aeea9d ]---
RIP: 0010:__wake_up_common+0xdb/0x600 kernel/sched/wait.c:85
Code: 05 00 00 4c 8b 43 38 49 83 e8 18 49 8d 78 18 48 39 7d d0 0f 84 54 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 f9 04 00 00 49 8b 40 18 89 55 b8 31 db 49 be 00
RSP: 0018:ffff88808994fc90 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff888072b84908 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff88808994fce0 R08: ffffffffffffffe8 R09: ffff88808994fd20
R10: ffffed100e570921 R11: ffff888072b8490b R12: 0000000000000001
R13: ffff88808994fd20 R14: 0000000000000000 R15: ffff8880a48a8020
FS:  000000000104e940(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000b90004 CR3: 00000000a8e1a000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400