syzbot


WARNING in hfsplus_cat_write_inode

Status: upstream: reported C repro on 2023/01/23 02:49
Subsystems: hfsplus
[Documentation on labels]
Reported-by: syzbot+f416df40b0f792b85eed@syzkaller.appspotmail.com
First crash: 510d, last: 480d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in hfsplus_cat_write_inode origin:lts-only C done 9 391d 452d 3/3 fixed on 2023/06/26 14:47
upstream WARNING in hfsplus_cat_write_inode hfs C error 141 401d 568d 22/27 fixed on 2023/06/08 14:41
linux-6.1 WARNING in hfsplus_cat_write_inode origin:lts-only C done 9 389d 449d 3/3 fixed on 2023/06/26 14:47
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2023/02/22 04:49 29m bisect fix linux-4.14.y job log (0) log

Sample crash report:
IPVS: ftp: loaded support on port[0] = 21
------------[ cut here ]------------
WARNING: CPU: 0 PID: 34 at fs/hfsplus/inode.c:593 hfsplus_cat_write_inode+0x6e3/0x7d0 fs/hfsplus/inode.c:593
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 34 Comm: kworker/u4:2 Not tainted 4.14.303-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
 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:hfsplus_cat_write_inode+0x6e3/0x7d0 fs/hfsplus/inode.c:593
RSP: 0018:ffff8880b56b7628 EFLAGS: 00010297
RAX: ffff8880b565e1c0 RBX: 1ffff11016ad6ec7 RCX: 1ffff11016ad6e57
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880b56b7698
RBP: ffff8880b2ebb418 R08: ffff8880b56b7208 R09: ffffed10166dbd0a
R10: ffff8880b36de857 R11: ffff8880b565e1c0 R12: ffff8880b2ebb418
R13: 0000000000000000 R14: ffff8880b2ebb298 R15: ffff8880b56b7668
 hfsplus_write_inode fs/hfsplus/super.c:159 [inline]
 hfsplus_write_inode+0x6b/0x410 fs/hfsplus/super.c:146
 write_inode fs/fs-writeback.c:1241 [inline]
 __writeback_single_inode+0x6a4/0x1010 fs/fs-writeback.c:1439
 writeback_sb_inodes+0x48b/0xd30 fs/fs-writeback.c:1645
 wb_writeback+0x243/0xb80 fs/fs-writeback.c:1820
 wb_do_writeback fs/fs-writeback.c:1952 [inline]
 wb_workfn+0x2bd/0xf50 fs/fs-writeback.c:1988
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/01/23 02:48 linux-4.14.y 97205fccccdc cc0f9968 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-4-14 WARNING in hfsplus_cat_write_inode
* Struck through repros no longer work on HEAD.