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=1210c3fc980000 kernel config: https://syzkaller.appspot.com/x/.config?x=3b4350cf56c61c80 dashboard link: https://syzkaller.appspot.com/bug?extid=ffd2270f0bca3322ee00 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=16aecfba980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=171b3126980000 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/bd29adaaf7ea/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: [email protected] bcachefs (loop0): flushing journal and stopping allocators, journal seq 11 bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 11 ------------[ cut here ]------------ kernel BUG at fs/bcachefs/journal.h:375! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 6249 Comm: syz-executor102 Tainted: G W 6.10.0-rc2-syzkaller-g8867bbd4a056 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : bch2_journal_res_get+0x1a8/0x1b4 fs/bcachefs/journal.h:375 lr : bch2_journal_res_get+0x1a8/0x1b4 fs/bcachefs/journal.h:375 sp : ffff80009b3076e0 x29: ffff80009b3076e0 x28: 1fffe0001bf4957f x27: 0000000000000002 x26: dfff800000000000 x25: 1ffff00013660ee8 x24: dfff800000000000 x23: 1ffff00013660eec x22: dfff800000000000 x21: 0000000000000005 x20: ffff0000dfa4a5c0 x19: ffff80009b307760 x18: 0000000000000008 x17: 6c706d6f63207372 x16: ffff80008ae4f3c0 x15: 0000000000000002 x14: 1ffff00013660eec x13: 0000000000000000 x12: 0000000000000000 x11: ffff700013660eee x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d62fbc80 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000010 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: bch2_journal_res_get+0x1a8/0x1b4 fs/bcachefs/journal.h:375 bch2_journal_meta+0x9c/0x268 fs/bcachefs/journal.c:828 bch2_fs_journal_stop+0x188/0x348 fs/bcachefs/journal.c:1179 __bch2_fs_read_only+0x2a4/0x3d0 fs/bcachefs/super.c:291 __bch2_fs_read_write+0x2f0/0x434 fs/bcachefs/super.c:507 bch2_fs_read_write+0xa8/0xf0 fs/bcachefs/super.c:520 bch2_remount+0x2bc/0x460 fs/bcachefs/fs.c:1731 legacy_reconfigure+0xfc/0x114 fs/fs_context.c:685 reconfigure_super+0x1d0/0x6f0 fs/super.c:1072 vfs_cmd_reconfigure fs/fsopen.c:267 [inline] vfs_fsconfig_locked fs/fsopen.c:296 [inline] __do_sys_fsconfig fs/fsopen.c:476 [inline] __se_sys_fsconfig fs/fsopen.c:349 [inline] __arm64_sys_fsconfig+0x8b8/0xc40 fs/fsopen.c:349 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Code: 17ffffab 9770cd61 d4210000 9770cd5f (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
