syzbot


BUG: unable to handle kernel paging request in pm_qos_update_target

Status: upstream: reported C repro on 2020/04/13 09:59
Reported-by: syzbot+60a251fe3f0d3cd98597@syzkaller.appspotmail.com
First crash: 1462d, last: 530d
Fix bisection: failed (error log, bisect log)
  
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 BUG: unable to handle kernel paging request in pm_qos_update_target 1 1462d 1462d 0/1 auto-closed as invalid on 2020/08/11 08:37
upstream general protection fault in pm_qos_update_target pm syz inconclusive done 1 755d 1063d 22/26 fixed on 2023/02/24 13:51
Fix bisection attempts (6)
Created Duration User Patch Repo Result
2020/10/10 13:16 2m bisect fix linux-4.19.y error job log (0)
2020/09/10 12:39 36m bisect fix linux-4.19.y job log (0) log
2020/08/11 12:04 34m bisect fix linux-4.19.y job log (0) log
2020/07/12 11:07 33m bisect fix linux-4.19.y job log (0) log
2020/06/12 10:33 33m bisect fix linux-4.19.y job log (0) log
2020/05/13 09:59 34m bisect fix linux-4.19.y job log (0) log

Sample crash report:
BUG: unable to handle kernel paging request at fffffffffffffff0
PGD 9e6e067 P4D 9e6e067 PUD 9e70067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8790 Comm: syz-executor771 Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:list_empty include/linux/list.h:203 [inline]
RIP: 0010:plist_del+0x96/0x450 lib/plist.c:125
Code: 18 4d 39 ee 74 31 e8 b9 12 55 f9 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 3d 03 00 00 <49> 8b 46 f0 49 39 c5 0f 84 f2 01 00 00 e8 88 12 55 f9 4c 8d 73 10
RSP: 0018:ffff888090ec7b30 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff888235f3d240 RCX: ffffffff814d9120
RDX: 1ffffffffffffffe RSI: ffffffff880fbd57 RDI: ffff888235f3d240
RBP: ffff888235f3d248 R08: 0000000000000001 R09: 0000000000000002
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888235f3d258
R13: fffffffffffffff0 R14: 0000000000000000 R15: 0000000000000000
FS:  00000000012eb880(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff0 CR3: 00000000a9f61000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 pm_qos_update_target+0x803/0xa40 kernel/power/qos.c:288
 pm_qos_remove_request.part.0+0xf2/0x3c0 kernel/power/qos.c:542
 pm_qos_remove_request+0x52/0x80 kernel/power/qos.c:534
 snd_pcm_hw_free sound/core/pcm_native.c:822 [inline]
 snd_pcm_common_ioctl+0x12a0/0x29a0 sound/core/pcm_native.c:2901
 snd_pcm_ioctl+0x7e/0xb0 sound/core/pcm_native.c:2980
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4450e9
Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b cc fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffe3df3be58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004450e9
RDX: 0000000000000000 RSI: 0000000000004112 RDI: 0000000000000004
RBP: 000000000000886a R08: 00000000004002e0 R09: 00000000004002e0
R10: 000000000000000f R11: 0000000000000246 R12: 0000000000402200
R13: 0000000000402290 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
CR2: fffffffffffffff0
---[ end trace 3ae3975fd59c117b ]---
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:list_empty include/linux/list.h:203 [inline]
RIP: 0010:plist_del+0x96/0x450 lib/plist.c:125
Code: 18 4d 39 ee 74 31 e8 b9 12 55 f9 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 3d 03 00 00 <49> 8b 46 f0 49 39 c5 0f 84 f2 01 00 00 e8 88 12 55 f9 4c 8d 73 10
RSP: 0018:ffff888090ec7b30 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff888235f3d240 RCX: ffffffff814d9120
RDX: 1ffffffffffffffe RSI: ffffffff880fbd57 RDI: ffff888235f3d240
RBP: ffff888235f3d248 R08: 0000000000000001 R09: 0000000000000002
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888235f3d258
R13: fffffffffffffff0 R14: 0000000000000000 R15: 0000000000000000
FS:  00000000012eb880(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff0 CR3: 00000000a9f61000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (7):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/12/19 23:41 linux-4.19.y 13d2ce42de8c 04201c06 .config console log report syz C ci2-linux-4-19
2020/04/13 09:59 linux-4.19.y dda0e2920330 17a986e5 .config console log report syz C ci2-linux-4-19
2022/11/01 02:50 linux-4.19.y 3f8a27f9e27b a1d8560a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 BUG: unable to handle kernel paging request in pm_qos_update_target
2022/09/23 07:48 linux-4.19.y 3f8a27f9e27b 0042f2b4 .config console log report info ci2-linux-4-19 BUG: unable to handle kernel paging request in pm_qos_update_target
2022/09/06 23:45 linux-4.19.y 3f8a27f9e27b 5fc30c37 .config console log report info ci2-linux-4-19 BUG: unable to handle kernel paging request in pm_qos_update_target
2022/08/18 21:17 linux-4.19.y 3f8a27f9e27b 26a13b38 .config console log report info ci2-linux-4-19 BUG: unable to handle kernel paging request in pm_qos_update_target
2021/10/31 04:33 linux-4.19.y 3f8a27f9e27b 098b5d53 .config console log report info ci2-linux-4-19 BUG: unable to handle kernel paging request in pm_qos_update_target
* Struck through repros no longer work on HEAD.