Messages in this thread | | | Date | Sun, 27 Nov 2022 00:50:38 -0800 | Subject | [syzbot] kernel BUG in btrfs_global_root_delete | From | syzbot <> |
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Hello,
syzbot found the following issue on:
HEAD commit: 6d464646530f Merge branch 'for-next/core' into for-kernelci 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=133c91bb880000 kernel config: https://syzkaller.appspot.com/x/.config?x=23eec5c79c22aaf8 dashboard link: https://syzkaller.appspot.com/bug?extid=c53508efe63e66c13e68 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1534adbb880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11820973880000
Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f22d29413625/disk-6d464646.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/389f0a5f1a4a/vmlinux-6d464646.xz kernel image: https://storage.googleapis.com/syzbot-assets/48ddb02d82da/Image-6d464646.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/57b749caa804/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c53508efe63e66c13e68@syzkaller.appspotmail.com
BTRFS error (device loop0): parent transid verify failed on logical 5255168 mirror 1 wanted 5 found 7 BTRFS warning (device loop0): couldn't read tree root assertion failed: !tmp, in fs/btrfs/disk-io.c:1098 ------------[ cut here ]------------ kernel BUG at fs/btrfs/ctree.h:3713! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 3072 Comm: syz-executor365 Not tainted 6.1.0-rc6-syzkaller-32662-g6d464646530f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : assertfail+0x28/0x2c fs/btrfs/ctree.h:3712 lr : assertfail+0x28/0x2c fs/btrfs/ctree.h:3712 sp : ffff800012df3800 x29: ffff800012df3800 x28: 0000000000000000 x27: 000000000000000b x26: 0000000000000000 x25: ffff0000c734e000 x24: ffff0000c734e000 x23: 0000000000000000 x22: ffff0000c99141f7 x21: ffff0000c9b9c0a0 x20: ffff0000c9914000 x19: ffff0000c9b9c060 x18: 0000000000000201 x17: 000000000000b67e x16: ffff80000dbe6158 x15: ffff0000c6904ec0 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c6904ec0 x11: ff808000081c4d40 x10: 0000000000000000 x9 : 3743abf7676a7c00 x8 : 3743abf7676a7c00 x7 : ffff80000c08e4f4 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000032 Call trace: assertfail+0x28/0x2c fs/btrfs/ctree.h:3712 btrfs_global_root_delete+0x0/0x54 fs/btrfs/disk-io.c:1098 load_global_roots_objectid+0x20c/0x460 fs/btrfs/disk-io.c:2460 load_global_roots fs/btrfs/disk-io.c:2494 [inline] btrfs_read_roots+0x60/0x530 fs/btrfs/disk-io.c:2521 init_tree_roots+0x288/0x3d0 fs/btrfs/disk-io.c:2940 open_ctree+0x688/0xdc8 fs/btrfs/disk-io.c:3634 btrfs_fill_super+0xc0/0x174 fs/btrfs/super.c:1461 btrfs_mount_root+0x4a4/0x558 fs/btrfs/super.c:1829 legacy_get_tree+0x30/0x74 fs/fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1531 fc_mount fs/namespace.c:1043 [inline] vfs_kern_mount+0xe0/0x140 fs/namespace.c:1073 btrfs_mount+0x20c/0x5e8 fs/btrfs/super.c:1889 legacy_get_tree+0x30/0x74 fs/fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1531 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040 path_mount+0x358/0x890 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Code: d00060a2 910f0c00 91096c42 97fffbda (d4210000) ---[ end trace 0000000000000000 ]---
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