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WARNING in dbJoin

Status: upstream: reported C repro on 2026/06/20 14:28
Reported-by: syzbot+5a9c5fc22f22f9be4f30@syzkaller.appspotmail.com
First crash: 3d08h, last: 2h21m
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2026/06/21 upstream (ToT) 322008f87f91 C Failed due to an error; will retry later
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in dbJoin -1 C 9 21h39m 2d08h 0/3 upstream: reported C repro on 2026/06/21 14:20
upstream WARNING in dbJoin prio:high jfs -1 C error 631 now 7d05h 0/29 upstream: reported C repro on 2026/06/16 17:32
linux-6.6 WARNING in dbJoin -1 C 3 21h36m 1d11h 0/2 upstream: reported C repro on 2026/06/22 11:30

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 93 at fs/jfs/jfs_dmap.c:2875 dbAdjTree fs/jfs/jfs_dmap.c:-1 [inline]
WARNING: CPU: 1 PID: 93 at fs/jfs/jfs_dmap.c:2875 dbJoin+0xa08/0xb0c fs/jfs/jfs_dmap.c:2843
Modules linked in:
CPU: 1 PID: 93 Comm: jfsCommit Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : dbAdjTree fs/jfs/jfs_dmap.c:-1 [inline]
pc : dbJoin+0xa08/0xb0c fs/jfs/jfs_dmap.c:2843
lr : dbAdjTree fs/jfs/jfs_dmap.c:2875 [inline]
lr : dbJoin+0xa04/0xb0c fs/jfs/jfs_dmap.c:2843
sp : ffff800020637480
x29: ffff8000206374e0 x28: 0000000000000000 x27: ffff0000d0741010
x26: ffff0000d0741804 x25: 0000000000000001 x24: 0000000000000001
x23: 1fffe0001a0e8204 x22: 0000000000000155 x21: 0000000000020056
x20: 0000000000000004 x19: dfff800000000000 x18: 1fffe00033e8417e
x17: ffff8000098e0f0c x16: ffff8000082dba2c x15: 0000000000000000
x14: 0000000000000001 x13: 1fffff8000683a08 x12: 0000000000000000
x11: ff008000098c3e98 x10: 0000000000000000 x9 : ffff8000098c3e98
x8 : ffff0000c8115400 x7 : ffff8000086fd3fc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
x2 : 0000000000000004 x1 : 0000000000000155 x0 : 0000000000000000
Call trace:
 dbAdjTree fs/jfs/jfs_dmap.c:-1 [inline]
 dbJoin+0xa08/0xb0c fs/jfs/jfs_dmap.c:2843
 dbFreeBits+0x40c/0xbf4 fs/jfs/jfs_dmap.c:2340
 dbFreeDmap fs/jfs/jfs_dmap.c:2089 [inline]
 dbFree+0x2dc/0x5d4 fs/jfs/jfs_dmap.c:398
 txFreeMap+0x800/0xb94 fs/jfs/jfs_txnmgr.c:2516
 xtTruncate+0xa1c/0x266c fs/jfs/jfs_xtree.c:2467
 jfs_free_zero_link+0x2c0/0x424 fs/jfs/namei.c:758
 jfs_evict_inode+0x2f4/0x3e4 fs/jfs/inode.c:159
 evict+0x3d8/0x824 fs/inode.c:705
 iput_final fs/inode.c:1834 [inline]
 iput+0x728/0x7e8 fs/inode.c:1860
 txUpdateMap+0x68c/0x7b0 fs/jfs/jfs_txnmgr.c:2368
 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline]
 jfs_lazycommit+0x360/0x930 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
irq event stamp: 78
hardirqs last  enabled at (77): [<ffff800011c25a1c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (77): [<ffff800011c25a1c>] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (78): [<ffff800011b3a55c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (0): [<ffff80000818be70>] copy_process+0x1370/0x38f4 kernel/fork.c:2302
softirqs last disabled at (0): [<0000000000000000>] 0x0
---[ end trace 0000000000000000 ]---

Crashes (34):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/06/20 18:17 linux-6.1.y fdb6fcb41cc7 43bfcdb0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 WARNING in dbJoin
2026/06/20 17:24 linux-6.1.y fdb6fcb41cc7 43bfcdb0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 WARNING in dbJoin
2026/06/20 16:31 linux-6.1.y fdb6fcb41cc7 43bfcdb0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 WARNING in dbJoin
2026/06/20 15:19 linux-6.1.y fdb6fcb41cc7 43bfcdb0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan-arm64 WARNING in dbJoin
2026/06/23 20:47 linux-6.1.y fdb6fcb41cc7 4b1d8f01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 16:17 linux-6.1.y fdb6fcb41cc7 4b1d8f01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 16:16 linux-6.1.y fdb6fcb41cc7 4b1d8f01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 16:15 linux-6.1.y fdb6fcb41cc7 4b1d8f01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 16:15 linux-6.1.y fdb6fcb41cc7 4b1d8f01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 16:15 linux-6.1.y fdb6fcb41cc7 4b1d8f01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 16:15 linux-6.1.y fdb6fcb41cc7 4b1d8f01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 13:45 linux-6.1.y fdb6fcb41cc7 4b1d8f01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:56 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:55 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:54 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:54 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:53 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:53 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:51 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:51 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:50 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:50 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:50 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:48 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:48 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:48 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:47 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:47 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:45 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/23 02:45 linux-6.1.y fdb6fcb41cc7 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in dbJoin
2026/06/22 11:20 linux-6.1.y fdb6fcb41cc7 43bfcdb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in dbJoin
2026/06/21 21:35 linux-6.1.y fdb6fcb41cc7 43bfcdb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in dbJoin
2026/06/21 09:41 linux-6.1.y fdb6fcb41cc7 43bfcdb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in dbJoin
2026/06/20 14:28 linux-6.1.y fdb6fcb41cc7 43bfcdb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in dbJoin
* Struck through repros no longer work on HEAD.