REISERFS warning (device loop0): jdm-20006 create_privroot: xattrs/ACLs enabled and couldn't find/create .reiserfs_priv. Failing mount. ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 1 PID: 5445 at kernel/locking/mutex.c:575 __mutex_lock_common+0x141c/0x1f14 kernel/locking/mutex.c:575 Modules linked in: CPU: 1 PID: 5445 Comm: syz.0.182 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __mutex_lock_common+0x141c/0x1f14 kernel/locking/mutex.c:575 lr : __mutex_lock_common+0x141c/0x1f14 kernel/locking/mutex.c:575 sp : ffff8000243e73e0 x29: ffff8000243e7540 x28: 1ffff000035dd5a4 x27: ffff80001aeea000 x26: dfff800000000000 x25: ffff70000487ce94 x24: 0000000000000000 x23: 0000000000000000 x22: 0000000000000000 x21: ffff8000243e74c0 x20: 0000000000000000 x19: ffff0000cf06c828 x18: 0000000000000001 x17: 0000000000000000 x16: ffff800011254cd0 x15: 00000000ffffffff x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : f1ae88700eeaed00 x8 : f1ae88700eeaed00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000243e6cf8 x4 : ffff80001436f3e0 x3 : ffff800008508e1c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000028 Call trace: __mutex_lock_common+0x141c/0x1f14 kernel/locking/mutex.c:575 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_lookup+0x150/0x3e0 fs/reiserfs/namei.c:364 lookup_open fs/namei.c:3448 [inline] open_last_lookups fs/namei.c:3540 [inline] path_openat+0xca4/0x2718 fs/namei.c:3747 do_filp_open+0x184/0x368 fs/namei.c:3777 do_sys_openat2+0x134/0x3f4 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __arm64_sys_openat+0x118/0x14c fs/open.c:1282 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 24689 hardirqs last enabled at (24689): [] kasan_quarantine_put+0xc4/0x200 mm/kasan/quarantine.c:231 hardirqs last disabled at (24688): [] kasan_quarantine_put+0x108/0x200 mm/kasan/quarantine.c:204 softirqs last enabled at (24658): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (24656): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 6bdcd2e743f64040 ]--- ================================================================================ UBSAN: array-index-out-of-bounds in kernel/locking/qspinlock.c:130:9 index 14162 is out of range for type 'unsigned long[8]' CPU: 1 PID: 5445 Comm: syz.0.182 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Call trace: dump_backtrace+0x0/0x458 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 ubsan_epilogue+0x14/0x48 lib/ubsan.c:151 __ubsan_handle_out_of_bounds+0xd4/0x100 lib/ubsan.c:282 decode_tail kernel/locking/qspinlock.c:130 [inline] queued_spin_lock_slowpath+0x73c/0x7ac kernel/locking/qspinlock.c:468 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x2f8/0x2fc kernel/locking/spinlock_debug.c:115 __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_lock+0xb8/0x10c kernel/locking/spinlock.c:154 __mutex_lock_common+0x35c/0x1f14 kernel/locking/mutex.c:608 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_lookup+0x150/0x3e0 fs/reiserfs/namei.c:364 lookup_open fs/namei.c:3448 [inline] open_last_lookups fs/namei.c:3540 [inline] path_openat+0xca4/0x2718 fs/namei.c:3747 do_filp_open+0x184/0x368 fs/namei.c:3777 do_sys_openat2+0x134/0x3f4 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __arm64_sys_openat+0x118/0x14c fs/open.c:1282 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 ================================================================================ Unable to handle kernel paging request at virtual address ffff8000141f7740 Mem abort info: ESR = 0x0000000096000047 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x07: level 3 translation fault Data abort info: ISV = 0, ISS = 0x00000047 CM = 0, WnR = 1 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000002110d2000 [ffff8000141f7740] pgd=100000023ffff003, p4d=100000023ffff003, pud=100000023fffe003, pmd=100000023fffa003, pte=0000000000000000 Internal error: Oops: 0000000096000047 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 5445 Comm: syz.0.182 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : queued_spin_lock_slowpath+0x488/0x7ac kernel/locking/qspinlock.c:471 lr : decode_tail kernel/locking/qspinlock.c:130 [inline] lr : queued_spin_lock_slowpath+0x73c/0x7ac kernel/locking/qspinlock.c:468 sp : ffff8000243e71c0 x29: ffff8000243e7260 x28: 1fffe00019e0d906 x27: 1fffe000341f70e8 x26: ffff800014290e00 x25: ffff8000141f7740 x24: dfff800000000000 x23: ffff70000487ce3c x22: ffff8000141f7740 x21: ffff0001a0fb8748 x20: ffff0001a0fb8740 x19: ffff0000cf06c830 x18: 0000000000000003 x17: 0000000000000000 x16: ffff800008186e60 x15: 00000000ffffffff x14: ffff700002d1ad70 x13: 1ffff00002d1ad70 x12: 0000000000ff0100 x11: 0000000000000002 x10: ffff8000141f7740 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000243e6a58 x4 : ffff80001436f3e0 x3 : ffff800008186eb0 x2 : 0000000000000001 x1 : 0000000000000004 x0 : ffff0001a0fb8748 Call trace: queued_spin_lock_slowpath+0x488/0x7ac kernel/locking/qspinlock.c:474 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x2f8/0x2fc kernel/locking/spinlock_debug.c:115 __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_lock+0xb8/0x10c kernel/locking/spinlock.c:154 __mutex_lock_common+0x35c/0x1f14 kernel/locking/mutex.c:608 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_lookup+0x150/0x3e0 fs/reiserfs/namei.c:364 lookup_open fs/namei.c:3448 [inline] open_last_lookups fs/namei.c:3540 [inline] path_openat+0xca4/0x2718 fs/namei.c:3747 do_filp_open+0x184/0x368 fs/namei.c:3777 do_sys_openat2+0x134/0x3f4 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __arm64_sys_openat+0x118/0x14c fs/open.c:1282 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: aa1603e0 9415b38a aa1503e0 52800081 (f90002d4) ---[ end trace 6bdcd2e743f64041 ]--- ---------------- Code disassembly (best guess): 0: aa1603e0 mov x0, x22 4: 9415b38a bl 0x56ce2c 8: aa1503e0 mov x0, x21 c: 52800081 mov w1, #0x4 // #4 * 10: f90002d4 str x20, [x22] <-- trapping instruction