Warning: Permanently added '[localhost]:23090' (ED25519) to the list of known hosts. executing program [ 69.127974][ T5309] loop0: detected capacity change from 0 to 2048 [ 69.186389][ T5309] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 69.202749][ T24] audit: type=1800 audit(1730034987.228:2): pid=5314 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor357" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 69.211978][ T5315] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1220: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 69.230431][ T24] audit: type=1800 audit(1730034987.238:3): pid=5314 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor357" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 74.271087][ T1026] ------------[ cut here ]------------ [ 74.273292][ T1026] kernel BUG at fs/ext4/inode.c:2609! [ 74.275131][ T1026] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 74.277508][ T1026] CPU: 0 UID: 0 PID: 1026 Comm: kworker/u4:5 Not tainted 6.12.0-rc4-syzkaller-00261-g850925a8133c #0 [ 74.281064][ T1026] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.284924][ T1026] Workqueue: writeback wb_workfn (flush-7:0) [ 74.287568][ T1026] RIP: 0010:ext4_do_writepages+0x3d16/0x3d20 [ 74.290608][ T1026] Code: b0 8e 4c 89 f2 e8 7a a7 95 02 e9 ab fb ff ff e8 90 db 34 ff 90 0f 0b e8 88 db 34 ff 90 0f 0b e8 c0 e7 66 09 e8 7b db 34 ff 90 <0f> 0b 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 [ 74.299488][ T1026] RSP: 0018:ffffc900023bec40 EFLAGS: 00010293 [ 74.301713][ T1026] RAX: ffffffff82600ef5 RBX: 0000004000000000 RCX: ffff8880358a4880 [ 74.304677][ T1026] RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 [ 74.307514][ T1026] RBP: ffffc900023bf050 R08: ffffffff825fd6f3 R09: 1ffff11008eb53c1 [ 74.310416][ T1026] R10: dffffc0000000000 R11: ffffed1008eb53c2 R12: 0000000000000001 [ 74.313236][ T1026] R13: 0000000024208060 R14: 0000004210000000 R15: ffff8880475aa068 [ 74.315941][ T1026] FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 [ 74.319156][ T1026] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.321528][ T1026] CR2: 000056354de89ea0 CR3: 000000000e734000 CR4: 0000000000352ef0 [ 74.324447][ T1026] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.327335][ T1026] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.330247][ T1026] Call Trace: [ 74.331543][ T1026] [ 74.332688][ T1026] ? __die_body+0x5f/0xb0 [ 74.334340][ T1026] ? die+0x9e/0xc0 [ 74.335762][ T1026] ? do_trap+0x15a/0x3a0 [ 74.337434][ T1026] ? ext4_do_writepages+0x3d16/0x3d20 [ 74.339365][ T1026] ? do_error_trap+0x1dc/0x2c0 [ 74.341059][ T1026] ? ext4_do_writepages+0x3d16/0x3d20 [ 74.342952][ T1026] ? __pfx_do_error_trap+0x10/0x10 [ 74.344770][ T1026] ? handle_invalid_op+0x34/0x40 [ 74.346576][ T1026] ? ext4_do_writepages+0x3d16/0x3d20 [ 74.348538][ T1026] ? exc_invalid_op+0x38/0x50 [ 74.350417][ T1026] ? asm_exc_invalid_op+0x1a/0x20 [ 74.352384][ T1026] ? ext4_do_writepages+0x513/0x3d20 [ 74.354406][ T1026] ? ext4_do_writepages+0x3d15/0x3d20 [ 74.356458][ T1026] ? ext4_do_writepages+0x3d16/0x3d20 [ 74.358522][ T1026] ? look_up_lock_class+0x77/0x170 [ 74.360510][ T1026] ? register_lock_class+0x102/0x980 [ 74.362529][ T1026] ? __pfx_register_lock_class+0x10/0x10 [ 74.364745][ T1026] ? mark_lock+0x9a/0x360 [ 74.366440][ T1026] ? __pfx_ext4_do_writepages+0x10/0x10 [ 74.368544][ T1026] ? rcu_read_lock_any_held+0xb7/0x160 [ 74.370607][ T1026] ext4_writepages+0x213/0x3c0 [ 74.372409][ T1026] ? __pfx_ext4_writepages+0x10/0x10 [ 74.374339][ T1026] ? reacquire_held_locks+0x3eb/0x690 [ 74.376353][ T1026] ? __pfx_ext4_writepages+0x10/0x10 [ 74.378245][ T1026] do_writepages+0x35d/0x870 [ 74.380029][ T1026] ? __pfx_do_writepages+0x10/0x10 [ 74.381951][ T1026] ? wbc_attach_and_unlock_inode+0x317/0x580 [ 74.384104][ T1026] ? __pfx_lock_release+0x10/0x10 [ 74.385879][ T1026] ? do_raw_spin_unlock+0x58/0x8b0 [ 74.387695][ T1026] __writeback_single_inode+0x14f/0x10d0 [ 74.389740][ T1026] ? wbc_attach_and_unlock_inode+0x369/0x580 [ 74.391942][ T1026] writeback_sb_inodes+0x80c/0x1370 [ 74.393908][ T1026] ? mark_lock+0x9a/0x360 [ 74.395511][ T1026] ? __lock_acquire+0x1384/0x2050 [ 74.397441][ T1026] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 74.399610][ T1026] ? __pfx___up_read+0x10/0x10 [ 74.401438][ T1026] ? do_raw_spin_lock+0x14f/0x370 [ 74.403326][ T1026] __writeback_inodes_wb+0x11b/0x260 [ 74.405284][ T1026] wb_writeback+0x42f/0xbd0 [ 74.406967][ T1026] ? queue_io+0x331/0x5a0 [ 74.408624][ T1026] ? __pfx_wb_writeback+0x10/0x10 [ 74.410478][ T1026] wb_workfn+0xc58/0x1090 [ 74.412153][ T1026] ? __pfx_wb_workfn+0x10/0x10 [ 74.413727][ T1026] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 74.415959][ T1026] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 74.418207][ T1026] ? process_scheduled_works+0x976/0x1850 [ 74.420188][ T1026] process_scheduled_works+0xa63/0x1850 [ 74.422151][ T1026] ? __pfx_process_scheduled_works+0x10/0x10 [ 74.424129][ T1026] ? assign_work+0x364/0x3d0 [ 74.425568][ T1026] worker_thread+0x870/0xd30 [ 74.427104][ T1026] ? __kthread_parkme+0x169/0x1d0 [ 74.428956][ T1026] ? __pfx_worker_thread+0x10/0x10 [ 74.430996][ T1026] kthread+0x2f0/0x390 [ 74.432573][ T1026] ? __pfx_worker_thread+0x10/0x10 [ 74.434295][ T1026] ? __pfx_kthread+0x10/0x10 [ 74.435914][ T1026] ret_from_fork+0x4b/0x80 [ 74.437571][ T1026] ? __pfx_kthread+0x10/0x10 [ 74.439345][ T1026] ret_from_fork_asm+0x1a/0x30 [ 74.441208][ T1026] [ 74.442388][ T1026] Modules linked in: [ 74.444041][ T1026] ---[ end trace 0000000000000000 ]--- [ 74.446725][ T1026] RIP: 0010:ext4_do_writepages+0x3d16/0x3d20 [ 74.448845][ T1026] Code: b0 8e 4c 89 f2 e8 7a a7 95 02 e9 ab fb ff ff e8 90 db 34 ff 90 0f 0b e8 88 db 34 ff 90 0f 0b e8 c0 e7 66 09 e8 7b db 34 ff 90 <0f> 0b 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 [ 74.458699][ T1026] RSP: 0018:ffffc900023bec40 EFLAGS: 00010293 [ 74.461410][ T1026] RAX: ffffffff82600ef5 RBX: 0000004000000000 RCX: ffff8880358a4880 [ 74.464402][ T1026] RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 [ 74.467228][ T1026] RBP: ffffc900023bf050 R08: ffffffff825fd6f3 R09: 1ffff11008eb53c1 [ 74.470584][ T1026] R10: dffffc0000000000 R11: ffffed1008eb53c2 R12: 0000000000000001 [ 74.473522][ T1026] R13: 0000000024208060 R14: 0000004210000000 R15: ffff8880475aa068 [ 74.476506][ T1026] FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 [ 74.479765][ T1026] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.482858][ T1026] CR2: 000056354de89ea0 CR3: 0000000012376000 CR4: 0000000000352ef0 [ 74.485847][ T1026] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.488701][ T1026] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.491779][ T1026] Kernel panic - not syncing: Fatal exception [ 74.493866][ T1026] Kernel Offset: disabled [ 74.495326][ T1026] Rebooting in 86400 seconds.. VM DIAGNOSIS: 13:16:32 Registers: info registers vcpu 0 CPU#0 RAX=000000000000002e RBX=ffffffff9a718e80 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc900023be1f0 R8 =ffffffff854abd6b R9 =1ffff11003d75046 R10=dffffc0000000000 R11=ffffffff854abd20 R12=dffffc0000000000 R13=ffffffff9a413ee7 R14=000000000000002e R15=00000000000003f8 RIP=ffffffff854abd9e 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 0000000000000000 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=000056354de89ea0 CR3=000000000e734000 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=00001fa0 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=00000000fffffe00 Opmask01=0000000000000000 Opmask02=0000000001e1f9ff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000e1b2b0 0000000000000002 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 403f3126e0000000 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffd5584a190 0000003000000010 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000000000000c0fe ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000000000000c0fe ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0200000000000000 00000000000080fe ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0200000000000000 00000000000080fe 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 0000000000000055 b27fb30000000055 b24fc1a630000072 656c6c616b7a7973 ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6864203a73250070 6475646e65735f70 636864203a732500 73646e6f63657320 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4d41051f56000055 4150414b40565f55 464d41051f560000 56414b4a46405605 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 0000000000000021 0000000000000000 0000000000000031 0000726565666965 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000021 0000000000000000 0000000000000031 00006d5f65636864 ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 bfbfbfbfbfbfbfbf bfbf2b313423342c ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 df312e232d2435bf 2324353124322431 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4141414141414141 4141414141414141 4141414141414141 4141414141414141 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2020202020202020 2020202020202020 2020202020202020 2020202020202020