Warning: Permanently added '[localhost]:37151' (ED25519) to the list of known hosts. executing program syzkaller login: [ 93.964468][ T5102] loop0: detected capacity change from 0 to 32768 [ 94.052451][ T5102] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,compression=lz4,nojournal_transaction_names [ 94.078767][ T5102] [ 94.079797][ T5102] ============================================ [ 94.082462][ T5102] WARNING: possible recursive locking detected [ 94.085771][ T5102] 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0 Not tainted [ 94.089691][ T5102] -------------------------------------------- [ 94.091992][ T5102] syz-executor420/5102 is trying to acquire lock: [ 94.094308][ T5102] ffff888045300908 (&c->sb_lock){+.+.}-{3:3}, at: bch2_replicas_entry_validate+0x2a/0x80 [ 94.097861][ T5102] [ 94.097861][ T5102] but task is already holding lock: [ 94.100833][ T5102] ffff888045300908 (&c->sb_lock){+.+.}-{3:3}, at: bch2_read_superblock_clean+0x36/0x520 [ 94.105528][ T5102] [ 94.105528][ T5102] other info that might help us debug this: [ 94.108495][ T5102] Possible unsafe locking scenario: [ 94.108495][ T5102] [ 94.111186][ T5102] CPU0 [ 94.112475][ T5102] ---- [ 94.113774][ T5102] lock(&c->sb_lock); [ 94.115346][ T5102] lock(&c->sb_lock); [ 94.117308][ T5102] [ 94.117308][ T5102] *** DEADLOCK *** [ 94.117308][ T5102] [ 94.121114][ T5102] May be due to missing lock nesting notation [ 94.121114][ T5102] [ 94.124293][ T5102] 2 locks held by syz-executor420/5102: [ 94.126293][ T5102] #0: ffff888045300278 (&c->state_lock){+.+.}-{3:3}, at: bch2_fs_start+0x45/0x5b0 [ 94.129663][ T5102] #1: ffff888045300908 (&c->sb_lock){+.+.}-{3:3}, at: bch2_read_superblock_clean+0x36/0x520 [ 94.134982][ T5102] [ 94.134982][ T5102] stack backtrace: [ 94.137760][ T5102] CPU: 0 UID: 0 PID: 5102 Comm: syz-executor420 Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0 [ 94.142231][ T5102] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 94.146790][ T5102] Call Trace: [ 94.148241][ T5102] [ 94.149487][ T5102] dump_stack_lvl+0x241/0x360 [ 94.151260][ T5102] ? __pfx_dump_stack_lvl+0x10/0x10 [ 94.153286][ T5102] ? __pfx__printk+0x10/0x10 [ 94.155202][ T5102] ? lockdep_unlock+0x16a/0x300 [ 94.157191][ T5102] print_deadlock_bug+0x483/0x620 [ 94.159080][ T5102] validate_chain+0x15e2/0x5920 [ 94.161031][ T5102] ? __pfx___bfs+0x10/0x10 [ 94.162875][ T5102] ? __pfx_validate_chain+0x10/0x10 [ 94.164918][ T5102] ? mark_lock+0x9a/0x360 [ 94.166443][ T5102] ? __lock_acquire+0x1384/0x2050 [ 94.168283][ T5102] ? mark_lock+0x9a/0x360 [ 94.170267][ T5102] __lock_acquire+0x1384/0x2050 [ 94.173137][ T5102] lock_acquire+0x1ed/0x550 [ 94.175516][ T5102] ? bch2_replicas_entry_validate+0x2a/0x80 [ 94.177876][ T5102] ? __pfx_lock_acquire+0x10/0x10 [ 94.179845][ T5102] ? lockdep_hardirqs_on+0x99/0x150 [ 94.181931][ T5102] ? __pfx___might_resched+0x10/0x10 [ 94.183814][ T5102] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 94.185676][ T5102] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 94.188481][ T5102] ? stack_trace_save+0x118/0x1d0 [ 94.191045][ T5102] __mutex_lock+0x136/0xd70 [ 94.192939][ T5102] ? bch2_replicas_entry_validate+0x2a/0x80 [ 94.195266][ T5102] ? kasan_save_track+0x51/0x80 [ 94.197100][ T5102] ? kasan_save_track+0x3f/0x80 [ 94.198924][ T5102] ? __kasan_kmalloc+0x98/0xb0 [ 94.201224][ T5102] ? __kmalloc_node_track_caller_noprof+0x225/0x440 [ 94.204497][ T5102] ? kmemdup_noprof+0x2a/0x60 [ 94.206632][ T5102] ? bch2_read_superblock_clean+0xd6/0x520 [ 94.209061][ T5102] ? bch2_replicas_entry_validate+0x2a/0x80 [ 94.211517][ T5102] ? bch2_fs_start+0x356/0x5b0 [ 94.213318][ T5102] ? __pfx___mutex_lock+0x10/0x10 [ 94.215117][ T5102] ? do_syscall_64+0xf3/0x230 [ 94.216954][ T5102] bch2_replicas_entry_validate+0x2a/0x80 [ 94.219762][ T5102] journal_entry_data_usage_validate+0x2b6/0x690 [ 94.222837][ T5102] ? __pfx_journal_entry_data_usage_validate+0x10/0x10 [ 94.225612][ T5102] ? journal_entry_usage_validate+0xc2/0x360 [ 94.227867][ T5102] ? __pfx_journal_entry_usage_validate+0x10/0x10 [ 94.230338][ T5102] ? rcu_is_watching+0x15/0xb0 [ 94.232176][ T5102] ? trace_kmalloc+0x1f/0xd0 [ 94.233918][ T5102] ? __kmalloc_node_track_caller_noprof+0x242/0x440 [ 94.236293][ T5102] ? kmemdup_noprof+0x45/0x60 [ 94.238703][ T5102] ? bch2_journal_entry_validate+0x6a/0xf0 [ 94.242036][ T5102] bch2_read_superblock_clean+0x207/0x520 [ 94.244316][ T5102] bch2_fs_recovery+0x1f4/0x39c0 [ 94.246249][ T5102] ? mark_lock+0x9a/0x360 [ 94.248016][ T5102] ? __lock_acquire+0x1384/0x2050 [ 94.250192][ T5102] ? __pfx_bch2_fs_recovery+0x10/0x10 [ 94.252607][ T5102] ? __pfx_lock_release+0x10/0x10 [ 94.254826][ T5102] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 94.257353][ T5102] ? __pfx_lock_release+0x10/0x10 [ 94.259423][ T5102] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 94.261657][ T5102] ? bch2_get_next_online_dev+0x4b9/0x4f0 [ 94.263812][ T5102] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 94.265985][ T5102] ? llist_reverse_order+0x72/0x90 [ 94.267825][ T5102] bch2_fs_start+0x356/0x5b0 [ 94.269632][ T5102] bch2_fs_get_tree+0xd68/0x1710 [ 94.271609][ T5102] ? __pfx_bch2_fs_get_tree+0x10/0x10 [ 94.274338][ T5102] ? generic_parse_monolithic+0x387/0x400 [ 94.277634][ T5102] ? apparmor_capable+0x13b/0x1b0 [ 94.280439][ T5102] vfs_get_tree+0x90/0x2b0 [ 94.282160][ T5102] do_new_mount+0x2be/0xb40 [ 94.283927][ T5102] ? __pfx_do_new_mount+0x10/0x10 [ 94.285877][ T5102] __se_sys_mount+0x2d6/0x3c0 [ 94.287764][ T5102] ? __pfx___se_sys_mount+0x10/0x10 [ 94.289810][ T5102] ? do_syscall_64+0x100/0x230 [ 94.291681][ T5102] ? __x64_sys_mount+0x20/0xc0 [ 94.293398][ T5102] do_syscall_64+0xf3/0x230 [ 94.295519][ T5102] ? clear_bhb_loop+0x35/0x90 [ 94.298038][ T5102] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.300639][ T5102] RIP: 0033:0x7fcd091d5dea [ 94.302363][ T5102] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 94.309552][ T5102] RSP: 002b:00007ffd72db6408 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 94.312792][ T5102] RAX: ffffffffffffffda RBX: 00007ffd72db6420 RCX: 00007fcd091d5dea [ 94.317222][ T5102] RDX: 0000000020005d80 RSI: 0000000020005dc0 RDI: 00007ffd72db6420 [ 94.320268][ T5102] RBP: 0000000000000004 R08: 00007ffd72db6460 R09: 0000000000005d9c [ 94.323076][ T5102] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 [ 94.325881][ T5102] R13: 00007ffd72db6460 R14: 0000000000000003 R15: 0000000001000000 [ 94.329129][ T5102] [ 96.943565][ T912] cfg80211: failed to load regulatory.db VM DIAGNOSIS: 01:33:24 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000031 RBX=ffffffff9a713e40 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc90002dbe570 R8 =ffffffff8549a7bb R9 =1ffff11003db0046 R10=dffffc0000000000 R11=ffffffff8549a770 R12=dffffc0000000000 R13=ffffffff9a40eefa R14=0000000000000031 R15=00000000000003f8 RIP=ffffffff8549a7ee RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 000055558f95a380 ffffffff 00c00000 GS =0000 ffff88801fc00000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fd851d17095 CR3=000000004039e000 CR4=00352ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=0000000000440401 Opmask01=0000000000000001 Opmask02=00000000fff7ffff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffd72db65a0 0000003000000018 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fcd09259560 00007fcd0924d5d8 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fcd0923f0a4 00007fcd09252240 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2525252525252525 2525252525252525 2525252525252525 2525252525252525 ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 65723d73726f7272 6500747865003036 36396f7369007265 6c6c616b7a797300 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 40571856574a5757 4000515d40001513 131c4a564c005740 4949444e5f5c5600 ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000