------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 0 PID: 11636 at kernel/locking/mutex.c:582 __mutex_lock_common+0x1660/0x21a0 kernel/locking/mutex.c:582 Modules linked in: CPU: 0 PID: 11636 Comm: syz-executor.5 Not tainted 6.7.0-rc6-syzkaller-gaafe7ad77b91 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __mutex_lock_common+0x1660/0x21a0 kernel/locking/mutex.c:582 lr : __mutex_lock_common+0x1660/0x21a0 kernel/locking/mutex.c:582 sp : ffff80009abe7320 x29: ffff80009abe74b0 x28: dfff800000000000 x27: 1ffff000125470e8 x26: ffff800092a38000 x25: ffff70001357ce80 x24: 0000000000000000 x23: 0000000000000000 x22: ffff800080e5ad08 x21: 0000000000000000 x20: 0000000000000000 x19: ffff00011300c828 x18: 1fffe000368261ce x17: ffff80008e4ed000 x16: ffff80008a829b6c x15: 0000000000000001 x14: 1fffe000368289b0 x13: 0000000000000000 x12: 0000000000000000 x11: ffff80009abdffff x10: 0000000000ff0100 x9 : 7801dc1695e9bb00 x8 : 7801dc1695e9bb00 x7 : 1fffe000368261cf x6 : ffff80008028df50 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff000134468000 x1 : 0000000000000000 x0 : ffff80008028dff0 Call trace: __mutex_lock_common+0x1660/0x21a0 kernel/locking/mutex.c:582 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_lookup+0x128/0x45c fs/reiserfs/namei.c:364 lookup_open fs/namei.c:3455 [inline] open_last_lookups fs/namei.c:3546 [inline] path_openat+0xc90/0x2888 fs/namei.c:3776 do_filp_open+0x1bc/0x3cc fs/namei.c:3809 do_sys_openat2+0x124/0x1b8 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1463 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 irq event stamp: 8341 hardirqs last enabled at (8341): [<ffff8000809df4c4>] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:242 hardirqs last disabled at (8340): [<ffff8000809df35c>] kasan_quarantine_put+0x38/0x1c8 mm/kasan/quarantine.c:215 softirqs last enabled at (8334): [<ffff80008002189c>] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (8334): [<ffff80008002189c>] __do_softirq+0xac8/0xce4 kernel/softirq.c:582 softirqs last disabled at (8311): [<ffff80008002aadc>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]--- ================================================================================ UBSAN: array-index-out-of-bounds in kernel/locking/qspinlock.c:131:9 index 3416 is out of range for type 'unsigned long[8]' CPU: 1 PID: 11636 Comm: syz-executor.5 Tainted: G W 6.7.0-rc6-syzkaller-gaafe7ad77b91 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:348 decode_tail kernel/locking/qspinlock.c:131 [inline] queued_spin_lock_slowpath+0x944/0xcf8 kernel/locking/qspinlock.c:471 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x320/0x348 kernel/locking/spinlock_debug.c:115 __raw_spin_lock include/linux/spinlock_api_smp.h:134 [inline] _raw_spin_lock+0x50/0x60 kernel/locking/spinlock.c:154 __mutex_lock_common+0x394/0x21a0 kernel/locking/mutex.c:617 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_lookup+0x128/0x45c fs/reiserfs/namei.c:364 lookup_open fs/namei.c:3455 [inline] open_last_lookups fs/namei.c:3546 [inline] path_openat+0xc90/0x2888 fs/namei.c:3776 do_filp_open+0x1bc/0x3cc fs/namei.c:3809 do_sys_openat2+0x124/0x1b8 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1463 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 ================================================================================ Unable to handle kernel paging request at virtual address ffff80008e45bbc0 KASAN: probably user-memory-access in range [0x00000004722dde00-0x00000004722dde07] 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, ISS2 = 0x00000000 CM = 0, WnR = 1, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001af25e000 [ffff80008e45bbc0] pgd=100000023ffff003, p4d=100000023ffff003, pud=100000023fffe003, pmd=100000023fff9003, pte=0000000000000000 Internal error: Oops: 0000000096000047 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 11636 Comm: syz-executor.5 Tainted: G W 6.7.0-rc6-syzkaller-gaafe7ad77b91 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : queued_spin_lock_slowpath+0x3c8/0xcf8 kernel/locking/qspinlock.c:474 lr : decode_tail kernel/locking/qspinlock.c:131 [inline] lr : queued_spin_lock_slowpath+0x944/0xcf8 kernel/locking/qspinlock.c:471 sp : ffff80009abe7120 x29: ffff80009abe71c0 x28: 0000000000003564 x27: 1ffff0001357ce30 x26: dfff800000000000 x25: 1fffe00022601906 x24: 0000000000080000 x23: ffff0001b4167bc8 x22: ffff80008e45bbc0 x21: ffff0001b4167bc0 x20: 1fffe0003682cf78 x19: ffff00011300c830 x18: 1fffe0003682a5ce x17: 3d3d3d3d3d3d3d3d x16: ffff80008a776f40 x15: ffff7000122a4e88 x14: 1ffff000122a4e88 x13: 0000000000000004 x12: ffffffffffffffff x11: 0000000000040000 x10: ffff80008e45bbc0 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009abe69d8 x4 : ffff80008e5d20c0 x3 : ffff8000801b8080 x2 : 0000000000000001 x1 : 0000000000000004 x0 : ffff0001b4167bc8 Call trace: queued_spin_lock_slowpath+0x3c8/0xcf8 kernel/locking/qspinlock.c:477 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x320/0x348 kernel/locking/spinlock_debug.c:115 __raw_spin_lock include/linux/spinlock_api_smp.h:134 [inline] _raw_spin_lock+0x50/0x60 kernel/locking/spinlock.c:154 __mutex_lock_common+0x394/0x21a0 kernel/locking/mutex.c:617 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_lookup+0x128/0x45c fs/reiserfs/namei.c:364 lookup_open fs/namei.c:3455 [inline] open_last_lookups fs/namei.c:3546 [inline] path_openat+0xc90/0x2888 fs/namei.c:3776 do_filp_open+0x1bc/0x3cc fs/namei.c:3809 do_sys_openat2+0x124/0x1b8 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1463 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 Code: aa1603e0 97583514 aa1703e0 52800081 (f90002d5) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: aa1603e0 mov x0, x22 4: 97583514 bl 0xfffffffffd60d454 8: aa1703e0 mov x0, x23 c: 52800081 mov w1, #0x4 // #4 * 10: f90002d5 str x21, [x22] <-- trapping instruction