Hello, syzbot found the following issue on:
HEAD commit: 8867bbd4a056 mm: arm64: Fix the out-of-bounds issue in con.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=1749a2e2980000 kernel config: https://syzkaller.appspot.com/x/.config?x=3b4350cf56c61c80 dashboard link: https://syzkaller.appspot.com/bug?extid=dd828a1b596932a42e10 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1206d55a980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16e839ac980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/6ea21f50498b/disk-8867bbd4.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e2fed09364aa/vmlinux-8867bbd4.xz kernel image: https://storage.googleapis.com/syzbot-assets/4860173c7a18/Image-8867bbd4.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/9f1aae1e19b4/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: [email protected] ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:645! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 27 Comm: kworker/1:1 Tainted: G W 6.10.0-rc2-syzkaller-g8867bbd4a056 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: bcachefs_write_ref bch2_do_invalidates_work pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : bch2_btree_path_level_init+0x820/0x83c fs/bcachefs/btree_iter.c:113 lr : btree_path_pos_in_node fs/bcachefs/btree_iter.c:113 [inline] lr : bch2_btree_path_level_init+0x820/0x83c fs/bcachefs/btree_iter.c:645 sp : ffff800093f06d30 x29: ffff800093f06d40 x28: dfff800000000000 x27: 0000000000000000 x26: 0000000000000000 x25: 0000000000008000 x24: 0000000000000000 x23: 0000000000000000 x22: 0000000000000000 x21: ffff0000d4718234 x20: ffff0000d8597800 x19: ffff0000d4718230 x18: ffff800093f079d4 x17: 000000000000cd7d x16: ffff80008af156e8 x15: ffff7000127e0d94 x14: ffff80008eff0558 x13: dfff800000000000 x12: 00000000e50ce57d x11: 0000000000000002 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c1b7dac0 x7 : ffff80008278cf60 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0000d8597800 x1 : 0000000000008000 x0 : 0000000000000000 Call trace: btree_path_pos_in_node fs/bcachefs/btree_iter.c:113 [inline] bch2_btree_path_level_init+0x820/0x83c fs/bcachefs/btree_iter.c:645 btree_path_lock_root fs/bcachefs/btree_iter.c:783 [inline] bch2_btree_path_traverse_one+0xd84/0x285c fs/bcachefs/btree_iter.c:1182 bch2_btree_path_traverse fs/bcachefs/btree_iter.h:229 [inline] __bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2185 [inline] bch2_btree_iter_peek_upto+0xbd8/0x56e4 fs/bcachefs/btree_iter.c:2285 bch2_btree_iter_peek_upto_type fs/bcachefs/btree_iter.h:641 [inline] bch2_do_invalidates_work+0x454/0x249c fs/bcachefs/alloc_background.c:2010 process_one_work+0x7b0/0x15e8 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:3393 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Code: d4210000 9777e81c d4210000 9777e81a (d4210000) ---[ end trace 0000000000000000 ]--- --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at [email protected]. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
