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WARNING in inc_nlink (3)

Status: upstream: reported C repro on 2022/03/17 16:37
Subsystems: jfs v9fs
[Documentation on labels]
Reported-by: syzbot+2b3af42c0644df1e4da9@syzkaller.appspotmail.com
First crash: 626d, last: 7d04h
Cause bisection: failed (error log, bisect log)
  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Discussions (11)
Title Replies (including bot) Last reply
[syzbot] Monthly v9fs report (Nov 2023) 0 (1) 2023/11/22 09:42
[syzbot] Monthly jfs report (Nov 2023) 0 (1) 2023/11/03 10:22
[syzbot] Monthly v9fs report (Oct 2023) 0 (1) 2023/10/11 14:38
[syzbot] Monthly v9fs report (Sep 2023) 0 (1) 2023/09/11 08:39
[syzbot] Monthly v9fs report (Aug 2023) 0 (1) 2023/08/09 12:33
[syzbot] Monthly 9p report (Jul 2023) 0 (1) 2023/07/10 09:36
[syzbot] Monthly 9p report (Jun 2023) 0 (1) 2023/06/07 13:47
[syzbot] Monthly 9p report (May 2023) 0 (1) 2023/05/07 06:35
[syzbot] Monthly 9p report 0 (1) 2023/04/06 08:17
Re: [syzbot] WARNING in inc_nlink (3) 1 (1) 2022/03/18 15:29
[syzbot] WARNING in inc_nlink (3) 0 (1) 2022/03/17 16:37
▶ ▼ Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in inc_nlink (2) C error 102 368d 1124d 0/1 upstream: reported C repro on 2020/11/01 15:25
linux-5.15 WARNING in inc_nlink origin:lts-only C 10 31d 255d 0/3 upstream: reported C repro on 2023/03/20 05:26
upstream WARNING in inc_nlink (2) fs C inconclusive done 21 632d 969d 22/25 fixed on 2022/03/08 16:11
linux-6.1 WARNING in inc_nlink 81 212d 234d 0/3 auto-obsoleted due to no activity on 2023/07/31 15:23
linux-4.19 WARNING in inc_nlink C done 8 1198d 1347d 1/1 fixed on 2020/09/18 07:23
linux-4.14 WARNING in inc_nlink C done 21 1206d 1348d 1/1 fixed on 2020/09/11 09:49
linux-4.14 WARNING in inc_nlink (2) C 47 284d 1119d 0/1 upstream: reported C repro on 2020/11/06 09:55
upstream WARNING in inc_nlink C done 26 1235d 1338d 17/25 fixed on 2020/09/16 22:51
▶ ▼ Last patch testing requests (12)
Created Duration User Patch Repo Result
2023/09/23 17:30 20m retest repro linux-next OK log
2023/09/23 17:30 19m retest repro linux-next OK log
2023/09/23 17:30 19m retest repro upstream OK log
2023/09/23 17:30 20m retest repro linux-next OK log
2023/09/23 15:33 18m retest repro upstream OK log
2023/09/23 15:33 19m retest repro upstream OK log
2023/09/23 15:33 19m retest repro upstream OK log
2023/09/23 15:33 20m retest repro upstream OK log
2023/09/23 15:33 20m retest repro upstream OK log
2023/09/23 11:42 20m retest repro upstream OK log
2022/03/18 15:10 14m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ aad611a868d1 OK
2022/03/18 13:43 22m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ aad611a868d1 error OK
▶ ▼ Fix bisection attempts (3)
Created Duration User Patch Repo Result
2023/03/17 12:09 8h04m bisect fix upstream error job log (0)
2023/02/15 11:45 23m bisect fix upstream job log (0) log
2022/11/06 04:00 21m bisect fix upstream job log (0) log

Sample crash report:
loop0: detected capacity change from 0 to 32768
read_mapping_page failed!
ERROR: (device loop0): txAbort: 
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5065 at fs/inode.c:387 inc_nlink+0x149/0x170 fs/inode.c:387
Modules linked in:
CPU: 0 PID: 5065 Comm: syz-executor349 Not tainted 6.7.0-rc2-syzkaller-00029-g9b6de136b5f0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:inc_nlink+0x149/0x170 fs/inode.c:387
Code: 4c 89 e7 e8 89 9a e9 ff e9 42 ff ff ff 4c 89 e7 e8 dc 99 e9 ff e9 fc fe ff ff 4c 89 e7 e8 cf 99 e9 ff eb d4 e8 c8 09 93 ff 90 <0f> 0b 90 e9 6c ff ff ff e8 da 99 e9 ff e9 42 ff ff ff e8 d0 99 e9
RSP: 0018:ffffc9000421fbd0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88805a0fbbb0 RCX: ffffffff81f47fd4
RDX: ffff888058d55940 RSI: ffffffff81f48068 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000004 R12: ffff88805a0fbbf8
R13: ffffffff8d53d840 R14: ffff88805a0fbbb0 R15: ffff88805a0fce30
FS:  0000555556e96380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6254795ed8 CR3: 00000000790bc000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 jfs_mkdir+0x8ce/0xb30 fs/jfs/namei.c:286
 vfs_mkdir+0x577/0x820 fs/namei.c:4106
 do_mkdirat+0x2fd/0x3a0 fs/namei.c:4129
 __do_sys_mkdir fs/namei.c:4149 [inline]
 __se_sys_mkdir fs/namei.c:4147 [inline]
 __x64_sys_mkdir+0xf2/0x140 fs/namei.c:4147
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7ff7ad7869f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff8dcf3cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007ff7ad7869f9
RDX: 00007ff7ad7869f9 RSI: 0000000000000000 RDI: 0000000020000100
RBP: 00007ff7ad7cf04b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000073 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff8dcf3ed8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Crashes (565):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/11/23 11:09 upstream 9b6de136b5f0 03e12510 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-badwrites-root WARNING in inc_nlink
2023/11/15 22:37 upstream c42d9eeef8e5 cb976f63 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root WARNING in inc_nlink
2023/08/21 02:40 upstream 706a74159504 d216d8a0 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in inc_nlink
2022/09/25 09:32 upstream 1a61b828566f 0042f2b4 .config strace log report syz C [disk image] [vmlinux] ci-upstream-kasan-gce-selinux-root WARNING in inc_nlink
2022/08/15 08:54 upstream 7ebfc85e2cd7 8dfcaa3d .config strace log report syz C ci-upstream-kasan-gce-selinux-root WARNING in inc_nlink
2022/08/15 07:19 upstream 7ebfc85e2cd7 8dfcaa3d .config strace log report syz C ci-upstream-kasan-gce-selinux-root WARNING in inc_nlink
2022/08/15 06:47 upstream 7ebfc85e2cd7 8dfcaa3d .config strace log report syz C ci-upstream-kasan-gce-selinux-root WARNING in inc_nlink
2022/07/20 15:16 upstream ca85855bdcae 775344bc .config strace log report syz C ci-upstream-kasan-gce-smack-root WARNING in inc_nlink
2022/07/20 14:46 upstream ca85855bdcae 775344bc .config strace log report syz C ci-upstream-kasan-gce-smack-root WARNING in inc_nlink
2022/07/20 14:15 upstream ca85855bdcae 775344bc .config strace log report syz C ci-upstream-kasan-gce-smack-root WARNING in inc_nlink
2022/07/09 14:27 upstream e5524c2a1fc4 b5765a15 .config strace log report syz C ci-upstream-kasan-gce-root WARNING in inc_nlink
2022/06/02 04:39 upstream 8171acb8bc9b b4bc6a3d .config strace log report syz C ci-upstream-kasan-gce-root WARNING in inc_nlink
2022/06/02 04:18 upstream 8171acb8bc9b b4bc6a3d .config strace log report syz C ci-upstream-kasan-gce-root WARNING in inc_nlink
2022/03/13 16:54 upstream aad611a868d1 9e8eaa75 .config console log report syz C ci-upstream-kasan-gce-root WARNING in inc_nlink
2022/03/13 16:56 upstream aad611a868d1 9e8eaa75 .config console log report syz C ci-qemu-upstream WARNING in inc_nlink
2022/07/13 21:59 linux-next cb71b93c2dc3 5d921b08 .config strace log report syz C ci-upstream-linux-next-kasan-gce-root WARNING in inc_nlink
2022/07/13 21:30 linux-next cb71b93c2dc3 5d921b08 .config strace log report syz C ci-upstream-linux-next-kasan-gce-root WARNING in inc_nlink
2022/03/13 17:07 linux-next 91265a6da44d 9e8eaa75 .config console log report syz C ci-upstream-linux-next-kasan-gce-root WARNING in inc_nlink
2023/10/31 19:23 upstream 5a6a09e97199 58499c95 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/10/04 21:09 upstream cbf3a2cb156a b7d7ff54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/08/26 06:56 upstream 382d4cd18475 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/08/21 13:22 upstream f7757129e3de d216d8a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/08/21 02:15 upstream 706a74159504 d216d8a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/07/29 11:52 upstream ffabf7c73176 92476829 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/06/29 04:53 upstream b19edac5992d ca69c785 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/06/15 00:45 upstream b6dad5178cea 76decb82 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/06/10 22:14 upstream 64569520920a 49519f06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/06/08 06:31 upstream a27648c74210 058b3a5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/06/07 15:51 upstream a4d7d7011219 6b9fb3c4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in inc_nlink
2023/06/06 03:12 upstream f8dba31b0a82 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/06/03 11:16 upstream 4ecd704a4c51 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/06/02 13:53 upstream c43a6ff9f93f a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/06/02 11:53 upstream 1874a42a7d74 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/05/30 17:10 upstream 8b817fded42d df37c7f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/05/30 01:46 upstream 8b817fded42d cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/05/29 05:06 upstream e338142b39cf cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in inc_nlink
2023/05/28 12:48 upstream 416839029e38 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/05/27 22:07 upstream 4e893b5aa4ac cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/05/22 19:11 upstream 44c026a73be8 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/05/21 17:44 upstream 0dd2a6fb1e34 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/05/21 08:16 upstream 0dd2a6fb1e34 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2023/05/15 19:39 upstream f1fcbaa18b28 c4d362e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in inc_nlink
2022/09/23 11:49 upstream bf682942cd26 0042f2b4 .config console log report info [disk image] [vmlinux] ci-upstream-kasan-gce-smack-root WARNING in inc_nlink
2022/09/23 10:39 upstream bf682942cd26 0042f2b4 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in inc_nlink
2022/03/13 16:34 upstream aad611a868d1 9e8eaa75 .config console log report info ci-upstream-kasan-gce-root WARNING in inc_nlink
2023/06/16 04:03 upstream b6dad5178cea f3921d4d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in inc_nlink
2023/06/07 00:12 linux-next 715abedee4cd a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in inc_nlink
2023/05/31 20:15 linux-next 715abedee4cd e2a77acd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in inc_nlink
2023/05/26 10:03 linux-next 715abedee4cd b40ef614 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in inc_nlink
2023/07/18 09:34 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e40939bbfc68 20f8b3c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/07/16 12:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e40939bbfc68 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/07/07 13:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e40939bbfc68 22ae5830 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/07/06 04:42 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e40939bbfc68 ba5dba36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/06/17 19:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 177239177378 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/06/03 16:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/27 18:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/10 10:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 14b12a99 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/10 03:37 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 1964022b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/10 02:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 1964022b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/09 23:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 30aa2a7e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/09 19:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 30aa2a7e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/09 15:38 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 30aa2a7e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/09 13:45 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 30aa2a7e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/09 03:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a f4168103 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/08 22:19 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/08 20:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/08 16:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/08 07:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/07 18:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
2023/05/07 14:54 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in inc_nlink
* Struck through repros no longer work on HEAD.