Warning: Permanently added '10.128.1.172' (ED25519) to the list of known hosts. executing program [ 45.518541][ T6443] efivarfs: resyncing variable state [ 45.520939][ T6443] [ 45.521473][ T6443] ============================================ [ 45.522855][ T6443] WARNING: possible recursive locking detected [ 45.524264][ T6443] 6.14.0-rc4-syzkaller-ge056da87c780 #0 Not tainted [ 45.525678][ T6443] -------------------------------------------- [ 45.527039][ T6443] syz-executor772/6443 is trying to acquire lock: [ 45.528418][ T6443] ffff0000c6826558 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: efivarfs_actor+0x1b8/0x2b8 [ 45.530608][ T6443] [ 45.530608][ T6443] but task is already holding lock: [ 45.532210][ T6443] ffff0000c6c7a558 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: iterate_dir+0x3b4/0x5f4 [ 45.534470][ T6443] [ 45.534470][ T6443] other info that might help us debug this: [ 45.536212][ T6443] Possible unsafe locking scenario: [ 45.536212][ T6443] [ 45.537830][ T6443] CPU0 [ 45.538542][ T6443] ---- [ 45.539251][ T6443] lock(&sb->s_type->i_mutex_key#16); [ 45.540533][ T6443] lock(&sb->s_type->i_mutex_key#16); [ 45.541720][ T6443] [ 45.541720][ T6443] *** DEADLOCK *** [ 45.541720][ T6443] [ 45.543483][ T6443] May be due to missing lock nesting notation [ 45.543483][ T6443] [ 45.545272][ T6443] 3 locks held by syz-executor772/6443: [ 45.546478][ T6443] #0: ffff80008fc57208 (system_transition_mutex){+.+.}-{4:4}, at: lock_system_sleep+0x68/0xc0 [ 45.548863][ T6443] #1: ffff80008fc75d70 ((pm_chain_head).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x58/0xa0 [ 45.551261][ T6443] #2: ffff0000c6c7a558 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: iterate_dir+0x3b4/0x5f4 [ 45.553469][ T6443] [ 45.553469][ T6443] stack backtrace: [ 45.554671][ T6443] CPU: 0 UID: 0 PID: 6443 Comm: syz-executor772 Not tainted 6.14.0-rc4-syzkaller-ge056da87c780 #0 [ 45.554684][ T6443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 45.554691][ T6443] Call trace: [ 45.554695][ T6443] show_stack+0x2c/0x3c (C) [ 45.554713][ T6443] dump_stack_lvl+0xe4/0x150 [ 45.554726][ T6443] dump_stack+0x1c/0x28 [ 45.554738][ T6443] print_deadlock_bug+0x4e8/0x668 [ 45.554750][ T6443] __lock_acquire+0x6240/0x7904 [ 45.554761][ T6443] lock_acquire+0x23c/0x724 [ 45.554778][ T6443] down_write+0x50/0xc0 [ 45.554792][ T6443] efivarfs_actor+0x1b8/0x2b8 [ 45.554813][ T6443] dcache_readdir+0x2dc/0x4e8 [ 45.554825][ T6443] iterate_dir+0x46c/0x5f4 [ 45.554835][ T6443] efivarfs_pm_notify+0x2f4/0x350 [ 45.554845][ T6443] notifier_call_chain+0x1c4/0x550 [ 45.554857][ T6443] blocking_notifier_call_chain+0x70/0xa0 [ 45.554869][ T6443] pm_notifier_call_chain+0x2c/0x3c [ 45.554882][ T6443] snapshot_release+0x128/0x1b8 [ 45.554896][ T6443] __fput+0x340/0x760 [ 45.554909][ T6443] ____fput+0x20/0x30 [ 45.554920][ T6443] task_work_run+0x230/0x2e0 [ 45.554933][ T6443] do_notify_resume+0x178/0x1f4 [ 45.554944][ T6443] el0_svc+0xac/0x168 [ 45.554953][ T6443] el0t_64_sync_handler+0x84/0x108 [ 45.554963][ T6443] el0t_64_sync+0x198/0x19c executing program [ 45.657688][ T6445] Unable to handle kernel paging request at virtual address dfff80000000000d [ 45.659745][ T6445] KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] [ 45.661653][ T6445] Mem abort info: [ 45.662467][ T6445] ESR = 0x0000000096000005 [ 45.663466][ T6445] EC = 0x25: DABT (current EL), IL = 32 bits [ 45.664845][ T6445] SET = 0, FnV = 0 [ 45.665633][ T6445] EA = 0, S1PTW = 0 [ 45.666538][ T6445] FSC = 0x05: level 1 translation fault [ 45.667967][ T6445] Data abort info: [ 45.668888][ T6445] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [ 45.670376][ T6445] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 45.671648][ T6445] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 45.673014][ T6445] [dfff80000000000d] address between user and kernel address ranges [ 45.674774][ T6445] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP [ 45.676380][ T6445] Modules linked in: [ 45.677226][ T6445] CPU: 1 UID: 0 PID: 6445 Comm: syz-executor772 Not tainted 6.14.0-rc4-syzkaller-ge056da87c780 #0 [ 45.679595][ T6445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 45.681966][ T6445] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 45.683775][ T6445] pc : efivarfs_pm_notify+0xcc/0x350 [ 45.684990][ T6445] lr : efivarfs_pm_notify+0x8c/0x350 [ 45.686184][ T6445] sp : ffff8000a4557260 [ 45.687115][ T6445] x29: ffff8000a4557300 x28: 0000000000000000 x27: 1fffe0001ac4c061 [ 45.688960][ T6445] x26: dfff800000000000 x25: ffff7000148aae4c x24: 0000000000000068 [ 45.690915][ T6445] x23: ffff8000a4557288 x22: 0000000000000001 x21: ffff8000a4557280 [ 45.692856][ T6445] x20: ffff8000a4557260 x19: ffff0000d6260308 x18: 1fffe000366f1886 [ 45.694698][ T6445] x17: ffff80008fbbd000 x16: ffff8000832b5180 x15: 0000000000000001 [ 45.696559][ T6445] x14: 0000000000000000 x13: 0000000000000002 x12: ffff0000d024db80 [ 45.698445][ T6445] x11: ffff800082da5b60 x10: 0000000000ff0100 x9 : 0000000000000000 [ 45.700355][ T6445] x8 : 000000000000000d x7 : 0000000000000000 x6 : ffff80008b7d5eb8 [ 45.702218][ T6445] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008b7d6214 [ 45.704111][ T6445] x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff0000d6260328 [ 45.705928][ T6445] Call trace: [ 45.706671][ T6445] efivarfs_pm_notify+0xcc/0x350 (P) [ 45.707953][ T6445] notifier_call_chain+0x1c4/0x550 [ 45.709164][ T6445] blocking_notifier_call_chain_robust+0xdc/0x1bc [ 45.710669][ T6445] pm_notifier_call_chain_robust+0x34/0x64 [ 45.712014][ T6445] snapshot_open+0x184/0x270 [ 45.713060][ T6445] misc_open+0x2b8/0x328 [ 45.714048][ T6445] chrdev_open+0x3b0/0x4bc [ 45.715031][ T6445] do_dentry_open+0xb7c/0x1538 [ 45.716104][ T6445] vfs_open+0x48/0x2d8 [ 45.717139][ T6445] path_openat+0x2308/0x2b1c [ 45.718173][ T6445] do_filp_open+0x1e8/0x404 [ 45.719221][ T6445] do_sys_openat2+0x124/0x1b8 [ 45.720260][ T6445] __arm64_sys_openat+0x1f0/0x240 [ 45.721496][ T6445] invoke_syscall+0x98/0x2b8 [ 45.722670][ T6445] el0_svc_common+0x130/0x23c [ 45.723892][ T6445] do_el0_svc+0x48/0x58 [ 45.724950][ T6445] el0_svc+0x54/0x168 [ 45.726006][ T6445] el0t_64_sync_handler+0x84/0x108 [ 45.727413][ T6445] el0t_64_sync+0x198/0x19c [ 45.728593][ T6445] Code: f940027c 9100a297 9101a398 d343ff08 (387a6908) [ 45.730412][ T6445] ---[ end trace 0000000000000000 ]--- [ 46.032430][ T6445] Kernel panic - not syncing: Oops: Fatal exception [ 46.034169][ T6445] SMP: stopping secondary CPUs [ 46.035372][ T6445] Kernel Offset: disabled [ 46.036516][ T6445] CPU features: 0x200,00002070,00800250,82017203 [ 46.038152][ T6445] Memory Limit: none [ 46.291018][ T6445] Rebooting in 86400 seconds..