syzbot


kernel BUG in hfsplus_bnode_put

Status: upstream: reported C repro on 2023/06/17 12:22
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+61d25576dc01ec558bb4@syzkaller.appspotmail.com
First crash: 347d, last: 49d
Fix bisection: failed (error log, bisect log)
  
Bug presence (1)
Date Name Commit Repro Result
2023/06/17 upstream (ToT) 1639fae5132b C [report] kernel BUG in hfsplus_bnode_put
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in hfsplus_bnode_put origin:upstream C 4 27d 347d 0/3 upstream: reported C repro on 2023/06/17 11:52
upstream kernel BUG in hfsplus_bnode_put hfs C error 43 9d01h 497d 0/26 upstream: reported C repro on 2023/01/18 07:25

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/hfsplus/bnode.c:631!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 417 Comm: kworker/u4:5 Not tainted 5.15.117-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue: writeback wb_workfn (flush-7:0)
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : hfsplus_bnode_put+0x588/0x594 fs/hfsplus/bnode.c:631
lr : hfsplus_bnode_put+0x588/0x594 fs/hfsplus/bnode.c:631
sp : ffff80001d007240
x29: ffff80001d007240 x28: 1fffe0001918fe93 x27: ffff0000c8ace000
x26: dfff800000000000 x25: ffff0000c9d92000 x24: 1fffe000181fa840
x23: dfff800000000000 x22: 0000000000000100 x21: ffff0000c0fd4280
x20: 0000000000000000 x19: ffff0000c0fd4200 x18: 0000000000000000
x17: ff80800008faecf0 x16: ffff8000119534fc x15: ffff800008faecf0
x14: 1ffff0000291e06a x13: ffffffffffffffff x12: 0000000000000000
x11: ff80800008faf714 x10: 0000000000000000 x9 : ffff800008faf714
x8 : ffff0000c7f9b680 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008faf1e8
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 hfsplus_bnode_put+0x588/0x594 fs/hfsplus/bnode.c:631
 hfsplus_btree_write+0x2cc/0x6d4 fs/hfsplus/btree.c:308
 hfsplus_system_write_inode fs/hfsplus/super.c:136 [inline]
 hfsplus_write_inode+0x3a4/0x4ec fs/hfsplus/super.c:162
 write_inode fs/fs-writeback.c:1478 [inline]
 __writeback_single_inode+0x584/0x13a4 fs/fs-writeback.c:1683
 writeback_sb_inodes+0x94c/0x1620 fs/fs-writeback.c:1908
 wb_writeback+0x3fc/0xfc8 fs/fs-writeback.c:2082
 wb_do_writeback fs/fs-writeback.c:2225 [inline]
 wb_workfn+0x3a4/0x1070 fs/fs-writeback.c:2266
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2307
 worker_thread+0x910/0x1034 kernel/workqueue.c:2454
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
Code: aa1403e0 97e46085 17ffff77 97d44e7b (d4210000) 
---[ end trace 814c451ac9864a98 ]---

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/06/17 12:22 linux-5.15.y 471e639e59d1 f3921d4d .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 kernel BUG in hfsplus_bnode_put
2023/07/28 03:33 linux-5.15.y 09996673e313 92476829 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in hfsplus_bnode_put
2024/04/10 12:36 linux-5.15.y 9465fef4ae35 4320ec32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in hfsplus_bnode_put
* Struck through repros no longer work on HEAD.