Hello, syzbot found the following issue on: HEAD commit: ae87308093bc Merge branch 'for-next/fixes' 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=152f9dfc480000 kernel config: https://syzkaller.appspot.com/x/.config?x=6cb176fd0bc15059 dashboard link: https://syzkaller.appspot.com/bug?extid=d4b971e744b1f5439336 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=15a38fec480000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=106ffae2480000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/a1c9355518bc/disk-ae873080.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2db3dca5f602/vmlinux-ae873080.xz kernel image: https://storage.googleapis.com/syzbot-assets/1477d6145e3c/Image-ae873080.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/401f01482f1f/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d4b971e744b1f5439336@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ Looking for class "&ea_inode->i_rwsem" with key ext4_fs_type, but found a different class "&sb->s_type->i_mutex_key" with the same key WARNING: CPU: 0 PID: 4452 at kernel/locking/lockdep.c:940 look_up_lock_class+0x158/0x160 Modules linked in: CPU: 0 PID: 4452 Comm: syz-executor318 Not tainted 6.2.0-rc2-syzkaller-16046-gae87308093bc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : look_up_lock_class+0x158/0x160 lr : look_up_lock_class+0x154/0x160 kernel/locking/lockdep.c:937 sp : ffff80000ff434e0 x29: ffff80000ff434e0 x28: 0000000000000000 x27: 0000000000000000 x26: ffff0000cafac6f0 x25: ffff800008877514 x24: 0000000000000000 x23: ffff80000f058000 x22: 0000000000000001 x21: ffff80000d6a1e68 x20: 0000000000000000 x19: ffff80000ddabc98 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000001 x15: 0000000000000000 x14: 000000000000000d x13: 205d323534345420 x12: 5b5d303330383736 x11: ff808000081cbbc8 x10: 0000000000000000 x9 : b4969308ab43b000 x8 : b4969308ab43b000 x7 : 205b5d3033303837 x6 : ffff80000c121738 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : ffff80000ddabc98 Call trace: look_up_lock_class+0x158/0x160 register_lock_class+0x4c/0x2f8 kernel/locking/lockdep.c:1289 __lock_acquire+0xa8/0x3084 kernel/locking/lockdep.c:4934 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5668 down_write+0x5c/0x88 kernel/locking/rwsem.c:1562 inode_lock include/linux/fs.h:756 [inline] ext4_xattr_inode_update_ref+0x4c/0x2cc fs/ext4/xattr.c:998 ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1049 [inline] ext4_xattr_block_set+0x4b4/0x1404 fs/ext4/xattr.c:2150 ext4_xattr_set_handle+0x724/0x9a0 fs/ext4/xattr.c:2390 ext4_xattr_set+0x104/0x1d4 fs/ext4/xattr.c:2492 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38 __vfs_setxattr+0x290/0x29c fs/xattr.c:202 __vfs_setxattr_noperm+0xcc/0x320 fs/xattr.c:236 __vfs_setxattr_locked+0x16c/0x194 fs/xattr.c:297 vfs_setxattr+0xf4/0x1f4 fs/xattr.c:323 do_setxattr fs/xattr.c:608 [inline] setxattr fs/xattr.c:631 [inline] path_setxattr+0x32c/0x424 fs/xattr.c:650 __do_sys_setxattr fs/xattr.c:666 [inline] __se_sys_setxattr fs/xattr.c:662 [inline] __arm64_sys_setxattr+0x2c/0x40 fs/xattr.c:662 __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+0x48/0x140 arch/arm64/kernel/syscall.c:197 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 irq event stamp: 5901 hardirqs last enabled at (5901): [<ffff80000c1268a4>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (5901): [<ffff80000c1268a4>] _raw_spin_unlock_irqrestore+0x48/0x8c kernel/locking/spinlock.c:194 hardirqs last disabled at (5900): [<ffff80000c1266e0>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (5900): [<ffff80000c1266e0>] _raw_spin_lock_irqsave+0xa4/0xb4 kernel/locking/spinlock.c:162 softirqs last enabled at (5822): [<ffff8000080102e4>] _stext+0x2e4/0x37c softirqs last disabled at (5811): [<ffff800008017c90>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 ---[ 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 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
