------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 0 PID: 10875 at kernel/locking/mutex.c:582 __mutex_lock_common+0x504/0xf64 kernel/locking/mutex.c:582 Modules linked in: CPU: 0 PID: 10875 Comm: syz-executor.3 Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __mutex_lock_common+0x504/0xf64 kernel/locking/mutex.c:582 lr : __mutex_lock_common+0x504/0xf64 kernel/locking/mutex.c:582 sp : ffff80002033b9e0 x29: ffff80002033ba50 x28: ffff80000eeb4000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff800008748194 x24: 0000000000000002 x23: ffff800008771cc4 x22: 0000000000000000 x21: 0000000000000000 x20: 0000000000000000 x19: ffff0000f9174028 x18: ffff80000bfae9bc x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000012 x12: 0000000000040000 x11: 0000000000001240 x10: ffff80001abd2000 x9 : fa57e227bf326400 x8 : fa57e227bf326400 x7 : 4e5241575f534b43 x6 : ffff80000bf650d4 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000028 Call trace: __mutex_lock_common+0x504/0xf64 kernel/locking/mutex.c:582 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 reiserfs_write_lock+0x3c/0x64 fs/reiserfs/lock.c:27 reiserfs_readdir_inode+0x9c/0x660 fs/reiserfs/dir.c:79 reiserfs_readdir+0x28/0x38 fs/reiserfs/dir.c:274 iterate_dir+0x114/0x28c __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x80/0x204 fs/readdir.c:354 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c 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:591 irq event stamp: 3843 hardirqs last enabled at (3843): [] local_daif_restore arch/arm64/include/asm/daifflags.h:75 [inline] hardirqs last enabled at (3843): [] el0_svc_common+0x40/0x180 arch/arm64/kernel/syscall.c:107 hardirqs last disabled at (3842): [] el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 softirqs last enabled at (3838): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (3836): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---