syzbot

 sign-in | mailing list | source | docs
🐞 Open [717] 🐞 Fixed [181] 🐞 Invalid [640] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes 💬 Send us feedback

WARNING in sysfs_warn_dup

Status: upstream: reported C repro on 2019/04/11 12:48
Subsystems: gfs2
[Documentation on labels]
Reported-by: syzbot+96b6fd94ec6131a7405a@syzkaller.appspotmail.com
First crash: 1839d, last: 414d
▶ ▼ Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in sysfs_warn_dup (2) 1 1139d 1139d 0/1 auto-closed as invalid on 2021/07/09 11:24
upstream WARNING in sysfs_warn_dup fs 11 2275d 2318d 4/26 fixed on 2018/02/04 23:45
linux-4.19 WARNING in sysfs_warn_dup 1 1309d 1309d 0/1 auto-closed as invalid on 2021/01/21 01:19

Sample crash report:
sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8013 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 fs/sysfs/dir.c:30
Kernel panic - not syncing: kernel: panic_on_warn set ...

CPU: 0 PID: 8013 Comm: syz-executor322 Not tainted 4.14.307-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x21d/0x451 kernel/panic.c:247
gfs2: fsid=syz:syz: Now mounting FS...
 check_panic_on_warn.cold+0x19/0x35 kernel/panic.c:171
 __warn+0xdf/0x1e0 kernel/panic.c:603
 report_bug+0x208/0x250 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:967
RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 fs/sysfs/dir.c:30
RSP: 0018:ffff8880b3af7728 EFLAGS: 00010282
RAX: 000000000000003a RBX: ffff8880954e1b90 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff878bd360 RDI: ffffed101675eedb
RBP: ffff8880b289c1c0 R08: 000000000000003a R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882388a09a0
R13: ffff8880b4676800 R14: ffff8880954e1b98 R15: ffff888095555b58
 sysfs_create_dir_ns+0x16f/0x1d0 fs/sysfs/dir.c:59
 create_dir lib/kobject.c:71 [inline]
 kobject_add_internal+0x28b/0x930 lib/kobject.c:229
 kobject_add_varg lib/kobject.c:364 [inline]
 kobject_init_and_add+0xde/0x120 lib/kobject.c:436
 gfs2_sys_fs_add+0x184/0x3f0 fs/gfs2/sys.c:652
 fill_super+0x118b/0x2310 fs/gfs2/ops_fstype.c:1127
 gfs2_mount+0x439/0x510 fs/gfs2/ops_fstype.c:1340
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2572 [inline]
 do_mount+0xe65/0x2a30 fs/namespace.c:2905
 SYSC_mount fs/namespace.c:3121 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3098
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f484323971a
RSP: 002b:00007ffc4b4f6108 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f484323971a
RDX: 0000000020000100 RSI: 0000000020000000 RDI: 00007ffc4b4f6120
RBP: 00007ffc4b4f6120 R08: 00007ffc4b4f6160 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004
R13: 00005555572142c0 R14: 0000000000000000 R15: 00007ffc4b4f6160
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (4771):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/02/26 17:55 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/26 09:22 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/23 07:13 linux-4.14.y 1e61bd26fa2c 9f1e2cb3 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/22 07:45 linux-4.14.y a8ad60f2af58 42a4d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/10 21:48 linux-4.14.y a8ad60f2af58 e29a17f5 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/05 02:02 linux-4.14.y 3949d1610004 be607b78 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/28 20:21 linux-4.14.y 3949d1610004 9dfcf09c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/13 07:18 linux-4.14.y c4215ee4771b 96166539 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/11 12:26 linux-4.14.y c4215ee4771b 48bc529a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/09 10:44 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/09 01:08 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/08 21:43 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/08 03:52 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/08 00:47 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/06 03:46 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/06 01:45 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/05 23:32 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/05 21:25 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/05 12:12 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/05 07:50 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/05 04:52 linux-4.14.y c4215ee4771b 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/02 20:27 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/02 16:39 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/02 16:11 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/02 13:40 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/02 12:37 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/02 01:12 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/02 00:47 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/01 21:20 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/01 20:45 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/01 16:04 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/01 12:25 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/01 11:12 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/01 10:51 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/01 06:08 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/01 03:51 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/01/01 02:42 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2022/12/31 20:02 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2022/12/31 17:08 linux-4.14.y c4215ee4771b ab32d508 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2022/12/30 11:47 linux-4.14.y c4215ee4771b 44712fbc .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in sysfs_warn_dup
2019/04/11 16:40 linux-4.14.y 1ec8f1f0bffe 13030ef8 .config console log report syz C ci2-linux-4-14
2023/03/07 05:37 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/05 13:56 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/05 05:45 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/04 15:33 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/04 09:10 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/04 00:21 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/03 04:18 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/02 21:17 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/02 19:27 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/02 10:02 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/02 04:58 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/02 03:42 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/01 23:43 linux-4.14.y 7878a41b6cc1 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/01 17:06 linux-4.14.y 7878a41b6cc1 ef65e6cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/01 15:38 linux-4.14.y 7878a41b6cc1 ef65e6cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/01 12:18 linux-4.14.y 7878a41b6cc1 ef65e6cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/03/01 02:28 linux-4.14.y 7878a41b6cc1 95aee97a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/28 05:27 linux-4.14.y 7878a41b6cc1 95aee97a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/28 01:10 linux-4.14.y 7878a41b6cc1 95aee97a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/27 23:15 linux-4.14.y 7878a41b6cc1 95aee97a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/27 18:53 linux-4.14.y 7878a41b6cc1 9189cb53 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/27 15:15 linux-4.14.y 7878a41b6cc1 9189cb53 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/27 13:22 linux-4.14.y 7878a41b6cc1 9189cb53 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/27 11:18 linux-4.14.y 7878a41b6cc1 9189cb53 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/27 10:02 linux-4.14.y 7878a41b6cc1 9189cb53 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/27 08:43 linux-4.14.y 7878a41b6cc1 9189cb53 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/27 07:35 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/27 05:10 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/27 03:09 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/26 21:22 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/26 21:13 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/26 17:19 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/26 08:30 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/25 22:59 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/25 21:07 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/25 19:49 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/25 17:31 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/25 15:52 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/25 13:46 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/25 12:29 linux-4.14.y 7878a41b6cc1 ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/24 23:28 linux-4.14.y 1e61bd26fa2c ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2023/02/24 21:05 linux-4.14.y 1e61bd26fa2c ee50e71c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-4-14 WARNING in sysfs_warn_dup
2021/01/17 07:51 linux-4.14.y f79dc86058bc 65a7a854 .config console log report info ci2-linux-4-14
2019/04/11 11:47 linux-4.14.y 1ec8f1f0bffe e955ac50 .config console log report ci2-linux-4-14
* Struck through repros no longer work on HEAD.