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kernel BUG in hfs_write_inode

Status: upstream: reported C repro on 2023/04/04 07:01
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+c5103cae7270551db1e6@syzkaller.appspotmail.com
First crash: 852d, last: 2h46m
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2025/01/05 upstream (ToT) ab75170520d4 C [report] kernel BUG in hfs_write_inode
▶ ▼ Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 kernel BUG in hfs_write_inode hfs -1 C 3 882d 974d 0/1 upstream: reported C repro on 2022/12/02 20:03
linux-4.19 kernel BUG in hfs_write_inode hfs -1 C 24 880d 981d 0/1 upstream: reported C repro on 2022/11/26 01:52
linux-5.15 kernel BUG in hfs_write_inode origin:upstream -1 C error 9999 2h24m 846d 0/3 upstream: reported C repro on 2023/04/10 13:50
linux-6.6 kernel BUG in hfs_write_inode origin:upstream missing-backport -1 C 669 8h13m 47d 0/2 upstream: reported C repro on 2025/06/16 18:04
upstream kernel BUG in hfs_write_inode hfs -1 C error 99716 now 982d 0/29 upstream: reported C repro on 2022/11/25 09:45
▶ ▼ Fix bisection attempts (2)
Created Duration User Patch Repo Result
2023/12/10 16:32 1h16m bisect fix linux-6.1.y OK (0) job log log
2023/10/11 06:24 1h13m bisect fix linux-6.1.y OK (0) job log log

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/hfs/inode.c:449!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 11 Comm: kworker/u4:1 Tainted: G        W          6.1.122-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:hfs_write_inode+0xeb0/0xec0 fs/hfs/inode.c:449
Code: ff e9 88 fb ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 9d fb ff ff e8 df a5 7e ff e9 93 fb ff ff e8 55 da 4e 08 e8 30 12 27 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 57 41 56 41 54
RSP: 0018:ffffc90000107340 EFLAGS: 00010293
RAX: ffffffff82638a40 RBX: 0000000000000000 RCX: ffff888017ecbb80
RDX: 0000000000000000 RSI: ffffffff8d520a40 RDI: 0000000000000000
RBP: ffffc900001074d0 R08: 0000000000000007 R09: ffffffff82637cea
R10: 0000000000000003 R11: ffff888017ecbb80 R12: 1ffff92000020e6c
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888072e214d8
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffa5c66d78 CR3: 0000000030b55000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 write_inode fs/fs-writeback.c:1460 [inline]
 __writeback_single_inode+0x67d/0x11e0 fs/fs-writeback.c:1677
 writeback_sb_inodes+0xc2b/0x1b20 fs/fs-writeback.c:1903
 wb_writeback+0x49d/0xe10 fs/fs-writeback.c:2077
 wb_do_writeback fs/fs-writeback.c:2220 [inline]
 wb_workfn+0x427/0x1020 fs/fs-writeback.c:2260
 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hfs_write_inode+0xeb0/0xec0 fs/hfs/inode.c:449
Code: ff e9 88 fb ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 9d fb ff ff e8 df a5 7e ff e9 93 fb ff ff e8 55 da 4e 08 e8 30 12 27 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 57 41 56 41 54
RSP: 0018:ffffc90000107340 EFLAGS: 00010293
RAX: ffffffff82638a40 RBX: 0000000000000000 RCX: ffff888017ecbb80
RDX: 0000000000000000 RSI: ffffffff8d520a40 RDI: 0000000000000000
RBP: ffffc900001074d0 R08: 0000000000000007 R09: ffffffff82637cea
R10: 0000000000000003 R11: ffff888017ecbb80 R12: 1ffff92000020e6c
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888072e214d8
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055cabcd01188 CR3: 000000000d08e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (9069):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/02 05:44 linux-6.1.y 563edd786f0a d3ccff63 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/07/29 03:02 linux-6.1.y 3594f306da12 6654ea9c .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/05/01 08:12 linux-6.1.y 535ec20c5027 ce7952f4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/01/20 09:50 linux-6.1.y f4f677285b38 f2cb035c .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2024/03/19 21:29 linux-6.1.y d7543167affd e104824c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2024/02/26 23:50 linux-6.1.y 81e1dc2f7001 da36a36b .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2023/11/10 15:14 linux-6.1.y fb2635ac69ab 45e9b83e .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2023/05/22 08:07 linux-6.1.y fa74641fb6b9 4bce1a3e .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2023/06/24 03:16 linux-6.1.y e84a4e368abe 79782afc .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/02 19:16 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/02 16:17 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/02 01:50 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/02 00:15 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/02 00:15 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/01 21:50 linux-6.1.y 3594f306da12 40127d41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/01 21:41 linux-6.1.y 3594f306da12 40127d41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/01 14:43 linux-6.1.y 3594f306da12 40127d41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/01 12:51 linux-6.1.y 3594f306da12 40127d41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/01 06:36 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/07/31 18:20 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/07/31 17:19 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/07/30 02:41 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/07/29 22:25 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/07/29 08:37 linux-6.1.y 3594f306da12 c4a95487 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/07/29 05:56 linux-6.1.y 3594f306da12 c4a95487 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/07/28 20:48 linux-6.1.y 3594f306da12 6654ea9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/07/28 17:40 linux-6.1.y 3594f306da12 6654ea9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/07/28 09:19 linux-6.1.y 3594f306da12 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
2025/08/03 14:31 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/03 10:33 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/03 07:18 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/03 04:40 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/02 22:38 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/02 18:06 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/02 16:55 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/02 12:36 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/02 08:43 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/02 06:25 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/02 06:23 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/01 19:42 linux-6.1.y 3594f306da12 40127d41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/01 15:20 linux-6.1.y 3594f306da12 40127d41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/01 11:05 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/01 09:35 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/01 08:48 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/01 05:32 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/08/01 05:09 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/31 19:55 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/31 19:53 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/31 15:59 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/30 08:44 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/30 08:40 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/29 20:06 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/29 05:56 linux-6.1.y 3594f306da12 c4a95487 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/29 00:45 linux-6.1.y 3594f306da12 6654ea9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/28 14:13 linux-6.1.y 3594f306da12 6654ea9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/28 14:11 linux-6.1.y 3594f306da12 6654ea9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2025/07/28 11:44 linux-6.1.y 3594f306da12 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in hfs_write_inode
2023/04/04 07:01 linux-6.1.y 3b29299e5f60 41147e3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in hfs_write_inode
* Struck through repros no longer work on HEAD.