syzbot


WARNING in remove_proc_entry (5)

Status: fixed on 2023/06/08 14:41
Subsystems: scsi
[Documentation on labels]
Reported-by: syzbot+04a8437497bcfb4afa95@syzkaller.appspotmail.com
Fix commit: 2172e84ea00b SUNRPC: Fix occasional warning when destroying gss_krb5_enctypes
First crash: 389d, last: 344d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] WARNING in remove_proc_entry (5) 0 (2) 2023/03/13 04:07
Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in remove_proc_entry (4) net 1 817d 817d 0/26 closed as invalid on 2021/12/14 20:02
linux-4.19 WARNING in remove_proc_entry C error 4 463d 485d 0/1 upstream: reported C repro on 2022/10/28 02:13
upstream WARNING in remove_proc_entry netfilter 1 2042d 2042d 0/26 closed as invalid on 2018/09/05 12:51
upstream WARNING in remove_proc_entry (3) net nfs 1 956d 952d 0/26 auto-closed as invalid on 2021/11/10 16:53
upstream WARNING in remove_proc_entry (2) net 6 1621d 1921d 0/26 auto-closed as invalid on 2020/01/15 15:54
Last patch testing requests (2)
Created Duration User Patch Repo Result
2023/03/13 12:01 21m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 134231664868 OK log
2023/03/13 09:14 15m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 134231664868 report log

Sample crash report:
name '2'
WARNING: CPU: 1 PID: 26 at fs/proc/generic.c:712 remove_proc_entry+0x38d/0x460 fs/proc/generic.c:712
Modules linked in:
CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.3.0-rc1-syzkaller-00274-g134231664868 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Workqueue: usb_hub_wq hub_event
RIP: 0010:remove_proc_entry+0x38d/0x460 fs/proc/generic.c:712
Code: e9 6d fe ff ff e8 c3 c2 7a ff 48 c7 c7 c0 68 99 8c e8 f7 e9 08 08 e8 b2 c2 7a ff 4c 89 e6 48 c7 c7 00 a8 5e 8a e8 33 df 42 ff <0f> 0b e9 a4 fe ff ff e8 97 c2 7a ff 48 8d bd d8 00 00 00 48 b8 00
RSP: 0018:ffffc90000a1f638 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 1ffff92000143ec9 RCX: 0000000000000000
RDX: ffff8880174e1d40 RSI: ffffffff814bf3a7 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000a1f710
R13: dffffc0000000000 R14: ffff88807abf4078 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f84e0c354b8 CR3: 00000000788c7000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 scsi_proc_host_rm+0x15d/0x1d0 drivers/scsi/scsi_proc.c:263
 scsi_remove_host+0x108/0x340 drivers/scsi/hosts.c:183
 quiesce_and_remove_host drivers/usb/storage/usb.c:867 [inline]
 usb_stor_disconnect+0x119/0x270 drivers/usb/storage/usb.c:1087
 usb_unbind_interface+0x1dc/0x8e0 drivers/usb/core/driver.c:458
 device_remove drivers/base/dd.c:542 [inline]
 device_remove+0x11f/0x170 drivers/base/dd.c:534
 __device_release_driver drivers/base/dd.c:1240 [inline]
 device_release_driver_internal+0x443/0x610 drivers/base/dd.c:1263
 bus_remove_device+0x22c/0x420 drivers/base/bus.c:574
 device_del+0x48a/0xb80 drivers/base/core.c:3775
 usb_disable_device+0x35a/0x7b0 drivers/usb/core/message.c:1420
 usb_disconnect+0x2db/0x8a0 drivers/usb/core/hub.c:2238
 hub_port_connect drivers/usb/core/hub.c:5246 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5551 [inline]
 port_event drivers/usb/core/hub.c:5711 [inline]
 hub_event+0x1fbf/0x4e40 drivers/usb/core/hub.c:5793
 process_one_work+0x991/0x1710 kernel/workqueue.c:2390
 process_scheduled_works kernel/workqueue.c:2453 [inline]
 worker_thread+0x858/0x1090 kernel/workqueue.c:2539
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>

Crashes (158):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/03/13 04:06 upstream 134231664868 5205ef30 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/17 09:14 upstream 38e04b3e4240 18b58603 .config console log report info ci-upstream-kasan-gce-smack-root WARNING in remove_proc_entry
2023/03/17 06:08 upstream 0ddc84d2dd43 18b58603 .config console log report info ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/17 04:09 upstream 0ddc84d2dd43 18b58603 .config console log report info ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/16 18:52 upstream 9c1bec9c0b08 18b58603 .config console log report info ci-upstream-kasan-gce-smack-root WARNING in remove_proc_entry
2023/03/16 15:10 upstream 9c1bec9c0b08 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/16 12:31 upstream 9c1bec9c0b08 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in remove_proc_entry
2023/03/16 10:32 upstream 9c1bec9c0b08 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/16 04:34 upstream 9c1bec9c0b08 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in remove_proc_entry
2023/03/16 02:43 upstream 9c1bec9c0b08 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/16 01:46 upstream 9c1bec9c0b08 18b58603 .config console log report info ci-upstream-kasan-gce-smack-root WARNING in remove_proc_entry
2023/03/15 18:17 upstream 6015b1aca1a2 18b58603 .config console log report info ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/15 16:31 upstream 6015b1aca1a2 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in remove_proc_entry
2023/03/15 13:34 upstream 6015b1aca1a2 18b58603 .config console log report info ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/15 06:04 upstream 4979bf866825 0d5c4377 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/15 01:35 upstream 4979bf866825 0d5c4377 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/14 22:07 upstream 4979bf866825 0d5c4377 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/14 12:33 upstream fc89d7fb499b 0d5c4377 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in remove_proc_entry
2023/03/13 23:53 upstream fc89d7fb499b 026e2200 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/13 19:53 upstream fc89d7fb499b 026e2200 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/13 14:07 upstream eeac8ede1755 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/13 06:32 upstream eeac8ede1755 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/13 05:21 upstream 134231664868 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/13 00:15 upstream 134231664868 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/12 18:52 upstream 134231664868 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/12 17:28 upstream 134231664868 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/06 08:43 upstream f915322fe014 f8902b57 .config console log report info ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/05 14:16 upstream b01fe98d34f3 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/05 10:17 upstream b01fe98d34f3 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in remove_proc_entry
2023/03/05 07:53 upstream b01fe98d34f3 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/05 02:31 upstream b01fe98d34f3 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in remove_proc_entry
2023/03/17 16:05 upstream 38e04b3e4240 18b58603 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/17 10:33 upstream 38e04b3e4240 18b58603 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/16 20:58 upstream 0ddc84d2dd43 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/16 05:43 upstream 9c1bec9c0b08 18b58603 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/15 08:45 upstream 6015b1aca1a2 0d5c4377 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/14 20:55 upstream 4979bf866825 0d5c4377 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/14 19:16 upstream 4979bf866825 0d5c4377 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/14 10:22 upstream fc89d7fb499b 0d5c4377 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/14 09:07 upstream fc89d7fb499b 0d5c4377 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/14 02:09 upstream fc89d7fb499b 026e2200 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/13 21:50 upstream fc89d7fb499b 026e2200 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/13 16:28 upstream eeac8ede1755 026e2200 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/13 15:16 upstream eeac8ede1755 026e2200 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/12 20:14 upstream 134231664868 5205ef30 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/12 18:39 upstream 134231664868 5205ef30 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/06 02:39 upstream f915322fe014 f8902b57 .config console log report info ci-upstream-kasan-gce-386 WARNING in remove_proc_entry
2023/03/06 07:38 linux-next dc837c1a5137 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in remove_proc_entry
2023/03/06 05:30 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/06 03:45 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/06 01:22 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/05 23:13 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/05 21:18 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/05 21:03 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/05 19:59 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/05 15:20 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/05 12:58 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/05 11:54 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/05 09:06 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/05 07:07 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/03/05 05:18 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 0988a0ea7919 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in remove_proc_entry
2023/01/31 09:09 linux-next 80bd9028feca 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in remove_proc_entry
* Struck through repros no longer work on HEAD.