syzbot


BUG: unable to handle kernel paging request in pm_qos_update_target

Status: auto-closed as invalid on 2020/08/11 08:37
Reported-by: syzbot+1d1a741103989b4f4305@syzkaller.appspotmail.com
First crash: 807d, last: 807d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 BUG: unable to handle kernel paging request in pm_qos_update_target C error 3 241d 807d 0/1 upstream: reported C repro on 2020/04/13 09:59

Sample crash report:
audit: type=1804 audit(1586766993.261:296): pid=15118 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir700766246/syzkaller.TyS5DR/146/bus" dev="sda1" ino=15761 res=1
BUG: unable to handle kernel paging request at fffffffffffffff0
IP: __read_once_size include/linux/compiler.h:183 [inline]
IP: list_empty include/linux/list.h:203 [inline]
IP: plist_del+0x92/0x440 lib/plist.c:125
PGD 7c6d067 P4D 7c6d067 PUD 7c6f067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 15119 Comm: syz-executor.3 Not tainted 4.14.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888040aee6c0 task.stack: ffff88804ef28000
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:list_empty include/linux/list.h:203 [inline]
RIP: 0010:plist_del+0x92/0x440 lib/plist.c:125
RSP: 0018:ffff88804ef2fbe0 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff88809b85a940 RCX: ffffc90008cc5000
RDX: 1ffffffffffffffe RSI: ffffffff863add93 RDI: ffff88809b85a940
RBP: ffff88809b85a948 R08: 0000000000006e71 R09: ffffffff8a092c08
R10: ffff888040aeef40 R11: ffff888040aee6c0 R12: ffff88809b85a958
R13: fffffffffffffff0 R14: 0000000000000000 R15: 0000000000000282
FS:  00007fa8e12ef700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff0 CR3: 000000008ea02000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 pm_qos_update_target+0x6d2/0x9a0 kernel/power/qos.c:289
 pm_qos_remove_request+0x11c/0x460 kernel/power/qos.c:541
 snd_pcm_hw_free sound/core/pcm_native.c:790 [inline]
 snd_pcm_common_ioctl+0xa6d/0x1bf0 sound/core/pcm_native.c:2914
 snd_pcm_ioctl+0x6d/0xa0 sound/core/pcm_native.c:2993
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c889
RSP: 002b:00007fa8e12eec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa8e12ef6d4 RCX: 000000000045c889
RDX: 0000000000000000 RSI: 0000000000004112 RDI: 0000000000000005
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000004fa R14: 00000000004d3d58 R15: 000000000076bf0c
Code: 73 18 4d 39 ee 74 31 e8 0d 69 1f fb 4d 8d 6e f0 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 28 03 00 00 <49> 8b 46 f0 49 39 c5 0f 84 d4 01 00 00 e8 dc 68 1f fb 4c 8d 6b 
RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff88804ef2fbe0
RIP: list_empty include/linux/list.h:203 [inline] RSP: ffff88804ef2fbe0
RIP: plist_del+0x92/0x440 lib/plist.c:125 RSP: ffff88804ef2fbe0
CR2: fffffffffffffff0
---[ end trace 1faa73598a83776c ]---

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2020/04/13 08:36 linux-4.14.y 4520f06b03ae 17a986e5 .config log report