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WARNING in hfsplus_bnode_create

Status: upstream: reported C repro on 2023/05/13 19:31
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+b9a11951980cf86e1899@syzkaller.appspotmail.com
First crash: 800d, last: 7d18h
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2024/07/29 upstream (ToT) dc1c8034e31b C [report] WARNING in hfsplus_bnode_create
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in hfsplus_bnode_create hfs -1 C error 887 1d07h 962d 0/29 upstream: reported C repro on 2022/12/02 04:34
linux-4.14 WARNING in hfsplus_bnode_create hfsplus -1 C 1 897d 935d 0/1 upstream: reported C repro on 2022/12/29 14:39
linux-4.19 WARNING in hfsplus_bnode_create hfsplus -1 C error 5 896d 964d 0/1 upstream: reported C repro on 2022/11/30 07:43
linux-6.1 WARNING in hfsplus_bnode_create origin:upstream -1 C error 28 41d 818d 0/3 upstream: reported C repro on 2023/04/25 07:57
▶ ▼ Last patch testing requests (9)
Created Duration User Patch Repo Result
2025/07/07 20:21 10m retest repro linux-5.15.y report log
2025/06/18 06:51 9m retest repro linux-5.15.y report log
2025/06/18 06:51 10m retest repro linux-5.15.y report log
2025/06/18 06:51 10m retest repro linux-5.15.y report log
2025/06/18 06:51 10m retest repro linux-5.15.y report log
2025/06/18 06:51 10m retest repro linux-5.15.y report log
2025/04/28 21:41 16m retest repro linux-5.15.y report log
2025/04/28 21:41 12m retest repro linux-5.15.y report log
2025/04/28 21:41 10m retest repro linux-5.15.y report log

Sample crash report:
loop0: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4319 at fs/hfsplus/bnode.c:590 hfsplus_bnode_create+0x3d1/0x450 fs/hfsplus/bnode.c:589
Modules linked in:
CPU: 0 PID: 4319 Comm: syz.0.16 Not tainted 5.15.187-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:hfsplus_bnode_create+0x3d1/0x450 fs/hfsplus/bnode.c:590
Code: 67 1f 8a 89 ee e8 0f b4 73 07 e9 57 fd ff ff e8 25 68 4c ff 4c 89 ef e8 ad 9f 87 07 48 c7 c7 60 67 1f 8a 89 ee e8 ef b3 73 07 <0f> 0b eb b7 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 63 fc ff ff 4c
RSP: 0018:ffffc9000313f410 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff888076f3c000 RCX: 7655bba4e9c4a600
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10172067a8
R10: ffffed10172067a8 R11: 1ffff110172067a7 R12: 0000000000000000
R13: ffff888076f3c0e0 R14: ffff88802af09a00 R15: dffffc0000000000
FS:  000055557b136500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3035ffff CR3: 0000000075762000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x594/0x640 fs/hfsplus/btree.c:414
 hfs_bnode_split+0xc9/0xee0 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x38b/0xcc0 fs/hfsplus/brec.c:100
 hfsplus_create_cat+0x9dc/0x1020 fs/hfsplus/catalog.c:308
 hfsplus_link+0x3e1/0x700 fs/hfsplus/dir.c:342
 vfs_link+0x615/0x7c0 fs/namei.c:4557
 do_linkat+0x277/0x7b0 fs/namei.c:4628
 __do_sys_link fs/namei.c:4662 [inline]
 __se_sys_link fs/namei.c:4660 [inline]
 __x64_sys_link+0x82/0x90 fs/namei.c:4660
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb8fbfa7929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff7ace32f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007fb8fc1cefa0 RCX: 00007fb8fbfa7929
RDX: 0000000000000000 RSI: 0000200000000440 RDI: 00002000000002c0
RBP: 00007fb8fc029b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb8fc1cefa0 R14: 00007fb8fc1cefa0 R15: 0000000000000002
 </TASK>

Crashes (46):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/14 05:57 linux-5.15.y 2f693b607545 3cda49cf .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2025/06/23 07:55 linux-5.15.y 1c700860e8bc d6cdfb8a .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2025/06/02 09:34 linux-5.15.y 98f47d0e9b8c 3d2f584d .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2025/02/23 08:30 linux-5.15.y c16c81c81336 d34966d1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2024/07/29 08:51 linux-5.15.y 7e89efd3ae1c 46eb10b7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2023/06/27 17:56 linux-5.15.y f67653019430 4cd5bb25 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2023/05/30 05:30 linux-5.15.y 1fe619a7d252 cf184559 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2025/05/23 11:48 linux-5.15.y 98f47d0e9b8c fa44301a .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2025/04/06 14:04 linux-5.15.y 0c935c049b5c 1c65791e .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2025/02/22 09:46 linux-5.15.y c16c81c81336 d34966d1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/11/14 02:10 linux-5.15.y 3c17fc483905 bb3f8425 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/09/15 22:38 linux-5.15.y 3a5928702e71 08d8a733 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/04/19 18:59 linux-5.15.y c52b9710c83d af24b050 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/01/13 06:13 linux-5.15.y 26c690eff0a5 551587c1 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2023/06/07 05:44 linux-5.15.y d7af3e5ba454 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2023/05/13 19:31 linux-5.15.y b0ece631f84a 2b9ba477 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2025/06/01 12:06 linux-5.15.y 98f47d0e9b8c 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2025/04/06 18:28 linux-5.15.y 0c935c049b5c 1c65791e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2025/01/18 20:09 linux-5.15.y 4735586da88e f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2024/10/14 14:44 linux-5.15.y 3a5928702e71 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2024/09/19 09:39 linux-5.15.y 3a5928702e71 c673ca06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2024/08/12 09:02 linux-5.15.y 7e89efd3ae1c 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2024/07/29 07:45 linux-5.15.y 7e89efd3ae1c 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2024/07/22 01:57 linux-5.15.y 7c6d66f0266f b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2024/06/10 10:42 linux-5.15.y c61bd26ae81a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2024/04/01 19:19 linux-5.15.y 9465fef4ae35 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2024/02/20 15:53 linux-5.15.y 6139f2a02fe0 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2023/10/01 06:32 linux-5.15.y b911329317b4 8e26a358 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in hfsplus_bnode_create
2025/04/14 08:29 linux-5.15.y f7347f400572 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2025/04/03 02:22 linux-5.15.y 0c935c049b5c c799dfdd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2025/03/03 09:49 linux-5.15.y c16c81c81336 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2025/02/22 09:03 linux-5.15.y c16c81c81336 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2025/02/03 09:24 linux-5.15.y c16c81c81336 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2025/02/01 15:38 linux-5.15.y 003148680b79 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/11/23 19:49 linux-5.15.y 0a51d2d4527b 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/11/10 14:52 linux-5.15.y 3c17fc483905 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/09/27 05:44 linux-5.15.y 3a5928702e71 9314348a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/09/07 01:12 linux-5.15.y 14e468424d3e 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/08/25 17:02 linux-5.15.y fa93fa65db6e d7d32352 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/08/12 20:17 linux-5.15.y 7e89efd3ae1c 842184b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/04/22 06:37 linux-5.15.y c52b9710c83d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/04/13 07:44 linux-5.15.y cdfd0a7f0139 c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/04/01 11:26 linux-5.15.y 9465fef4ae35 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2024/01/12 20:05 linux-5.15.y 26c690eff0a5 551587c1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2023/09/22 03:21 linux-5.15.y 35ecaa3632bf 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
2023/05/30 05:23 linux-5.15.y 1fe619a7d252 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hfsplus_bnode_create
* Struck through repros no longer work on HEAD.