Hello, syzbot found the following issue on: HEAD commit: eb7081409f94 Linux 6.1-rc6 git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=12e5bb0d880000 kernel config: https://syzkaller.appspot.com/x/.config?x=8cdf448d3b35234 dashboard link: https://syzkaller.appspot.com/bug?extid=1d8c82e66f2e76b6b427 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=169e86fd880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1691470d880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/4a019f55c517/disk-eb708140.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/eb36e890aa8b/vmlinux-eb708140.xz kernel image: https://storage.googleapis.com/syzbot-assets/feee2c23ec64/bzImage-eb708140.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/c5c0a12afa51/mount_2.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1d8c82e66f2e76b6b427@xxxxxxxxxxxxxxxxxxxxxxxxx loop0: detected capacity change from 0 to 32768 XFS (loop0): Mounting V5 Filesystem XFS (loop0): Log inconsistent (didn't find previous header) XFS: Assertion failed: 0, file: fs/xfs/xfs_log_recover.c, line: 429 ------------[ cut here ]------------ kernel BUG at fs/xfs/xfs_message.c:102! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3638 Comm: syz-executor351 Not tainted 6.1.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:assfail+0x97/0xa0 fs/xfs/xfs_message.c:102 Code: 0f 0b 5b 41 5e 41 5f 5d c3 48 c7 c1 f0 b0 77 8d 80 e1 07 38 c1 7c d0 48 c7 c7 f0 b0 77 8d e8 20 0e ab fe eb c2 e8 59 f6 56 fe <0f> 0b 0f 1f 80 00 00 00 00 41 56 53 89 f3 49 89 fe e8 43 f6 56 fe RSP: 0018:ffffc90003aff598 EFLAGS: 00010293 RAX: ffffffff8333a217 RBX: 0000000000000001 RCX: ffff888022cb9d40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff8b32e340 R08: ffffffff8333a1e4 R09: ffffffff843cfcf6 R10: 0000000000000002 R11: ffff888022cb9d40 R12: 000000000000160d R13: dffffc0000000000 R14: 00000000000001ad R15: ffffffff8b32fa30 FS: 00007f52b55bb700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056094ba32cc8 CR3: 00000000779ca000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> xlog_find_verify_log_record+0x3fa/0x6f0 fs/xfs/xfs_log_recover.c:429 xlog_find_head+0x97e/0xbd0 fs/xfs/xfs_log_recover.c:722 xlog_find_tail+0x12f/0xe60 fs/xfs/xfs_log_recover.c:1256 xlog_recover+0x98/0x550 fs/xfs/xfs_log_recover.c:3361 xfs_log_mount+0x46c/0x810 fs/xfs/xfs_log.c:739 xfs_mountfs+0xd44/0x2040 fs/xfs/xfs_mount.c:805 xfs_fs_fill_super+0xf95/0x11f0 fs/xfs/xfs_super.c:1666 get_tree_bdev+0x400/0x620 fs/super.c:1324 vfs_get_tree+0x88/0x270 fs/super.c:1531 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f52b563204a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 d8 00 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f52b55bb0d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f52b563204a RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007f52b55bb100 RBP: 00007f52b55bb6b8 R08: 00007f52b55bb140 R09: 00000000000096b3 R10: 0000000006208004 R11: 0000000000000206 R12: 0000000000000005 R13: 00007f52b55bb140 R14: 00007f52b55bb100 R15: 0000000006208004 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:assfail+0x97/0xa0 fs/xfs/xfs_message.c:102 Code: 0f 0b 5b 41 5e 41 5f 5d c3 48 c7 c1 f0 b0 77 8d 80 e1 07 38 c1 7c d0 48 c7 c7 f0 b0 77 8d e8 20 0e ab fe eb c2 e8 59 f6 56 fe <0f> 0b 0f 1f 80 00 00 00 00 41 56 53 89 f3 49 89 fe e8 43 f6 56 fe RSP: 0018:ffffc90003aff598 EFLAGS: 00010293 RAX: ffffffff8333a217 RBX: 0000000000000001 RCX: ffff888022cb9d40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff8b32e340 R08: ffffffff8333a1e4 R09: ffffffff843cfcf6 R10: 0000000000000002 R11: ffff888022cb9d40 R12: 000000000000160d R13: dffffc0000000000 R14: 00000000000001ad R15: ffffffff8b32fa30 FS: 00007f52b55bb700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f52b5665190 CR3: 00000000779ca000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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 syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
