Warning: Permanently added '[localhost]:9742' (ED25519) to the list of known hosts. executing program syzkaller login: [ 95.126367][ T5098] loop0: detected capacity change from 0 to 2048 [ 95.169167][ T5100] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 95.195535][ T24] audit: type=1800 audit(1729069566.813:2): pid=5098 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor902" name="bus" dev="loop0" ino=18 res=0 errno=0 [ 95.220430][ T5098] loop0: detected capacity change from 2048 to 2040 [ 95.236371][ T5100] NILFS (loop0): vblocknr = 18 has abnormal lifetime: start cno (= 504403158265495554) > current cno (= 3) [ 95.257748][ T5100] NILFS error (device loop0): nilfs_bmap_propagate: broken bmap (inode number=2) [ 95.263533][ T5100] segctord: attempt to access beyond end of device [ 95.263533][ T5100] loop0: rw=395265, sector=2040, nr_sectors = 2 limit=2040 [ 95.279096][ T5100] Buffer I/O error on dev loop0, logical block 1020, lost sync page write [ 95.282567][ T5100] NILFS (loop0): unable to write superblock: err=-5 [ 95.289712][ T5100] Remounting filesystem read-only [ 95.293109][ T5098] NILFS (loop0): mounting fs with errors [ 95.316162][ T5098] ------------[ cut here ]------------ [ 95.318322][ T5098] kernel BUG at fs/buffer.c:2099! [ 95.330457][ T5098] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 95.334192][ T5098] CPU: 0 UID: 0 PID: 5098 Comm: syz-executor902 Not tainted 6.12.0-rc3-syzkaller-00044-g2f87d0916ce0 #0 [ 95.338317][ T5098] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 95.342056][ T5098] RIP: 0010:__block_write_begin_int+0x19a7/0x1a70 [ 95.344575][ T5098] Code: 31 ff e8 cc 58 71 ff 48 89 d8 48 25 ff 0f 00 00 74 27 e8 dc 53 71 ff e9 c6 e7 ff ff e8 d2 53 71 ff 90 0f 0b e8 ca 53 71 ff 90 <0f> 0b e8 c2 53 71 ff 90 0f 0b e8 6a b2 a2 09 48 8b 5c 24 08 48 89 [ 95.352395][ T5098] RSP: 0018:ffffc9000179f9e0 EFLAGS: 00010293 [ 95.355485][ T5098] RAX: ffffffff82239386 RBX: 0000000000007372 RCX: ffff8880008ec880 [ 95.358767][ T5098] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000007372 [ 95.361748][ T5098] RBP: ffffc9000179fb50 R08: ffffffff82237bb3 R09: 1ffffd400021e7b8 [ 95.364555][ T5098] R10: dffffc0000000000 R11: fffff9400021e7b9 R12: 04fff5000000462d [ 95.367646][ T5098] R13: 0000000000000000 R14: 0000000000001000 R15: 0000000000007372 [ 95.371613][ T5098] FS: 000055558bc8f380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 [ 95.375284][ T5098] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.377457][ T5098] CR2: 00005597207fdc30 CR3: 00000000404c2000 CR4: 0000000000352ef0 [ 95.380202][ T5098] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.383635][ T5098] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.387278][ T5098] Call Trace: [ 95.388964][ T5098] [ 95.390642][ T5098] ? __die_body+0x5f/0xb0 [ 95.392863][ T5098] ? die+0x9e/0xc0 [ 95.394506][ T5098] ? do_trap+0x15a/0x3a0 [ 95.396471][ T5098] ? __block_write_begin_int+0x19a7/0x1a70 [ 95.398977][ T5098] ? do_error_trap+0x1dc/0x2c0 [ 95.401132][ T5098] ? __block_write_begin_int+0x19a7/0x1a70 [ 95.404534][ T5098] ? __pfx_do_error_trap+0x10/0x10 [ 95.407420][ T5098] ? report_bug+0x3e8/0x500 [ 95.409518][ T5098] ? handle_invalid_op+0x34/0x40 [ 95.411245][ T5098] ? __block_write_begin_int+0x19a7/0x1a70 [ 95.413485][ T5098] ? exc_invalid_op+0x38/0x50 [ 95.415325][ T5098] ? asm_exc_invalid_op+0x1a/0x20 [ 95.417101][ T5098] ? __block_write_begin_int+0x1d3/0x1a70 [ 95.419578][ T5098] ? __block_write_begin_int+0x19a6/0x1a70 [ 95.421999][ T5098] ? __block_write_begin_int+0x19a7/0x1a70 [ 95.424320][ T5098] ? do_read_cache_folio+0x77a/0x850 [ 95.426514][ T5098] ? __pfx_nilfs_get_block+0x10/0x10 [ 95.428772][ T5098] ? __pfx___block_write_begin_int+0x10/0x10 [ 95.431278][ T5098] nilfs_add_link+0x66e/0xb50 [ 95.433231][ T5098] ? __pfx_nilfs_add_link+0x10/0x10 [ 95.435305][ T5098] ? nilfs_make_empty+0x3a2/0x530 [ 95.437138][ T5098] nilfs_mkdir+0x1f9/0x340 [ 95.438924][ T5098] ? __pfx_nilfs_mkdir+0x10/0x10 [ 95.440792][ T5098] ? __pfx_nilfs_permission+0x10/0x10 [ 95.443786][ T5098] ? bpf_lsm_inode_mkdir+0x9/0x10 [ 95.447439][ T5098] ? security_inode_mkdir+0xbe/0x340 [ 95.450941][ T5098] vfs_mkdir+0x2f9/0x4f0 [ 95.452639][ T5098] do_mkdirat+0x264/0x3a0 [ 95.454038][ T5098] ? __might_fault+0xaa/0x120 [ 95.455859][ T5098] ? __pfx_do_mkdirat+0x10/0x10 [ 95.457678][ T5098] ? strncpy_from_user+0x131/0x250 [ 95.459664][ T5098] ? getname_flags+0x1e3/0x540 [ 95.461581][ T5098] __x64_sys_mkdir+0x6c/0x80 [ 95.463469][ T5098] do_syscall_64+0xf3/0x230 [ 95.465316][ T5098] ? clear_bhb_loop+0x35/0x90 [ 95.467205][ T5098] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 95.469580][ T5098] RIP: 0033:0x7f6018852427 [ 95.471553][ T5098] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 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 [ 95.480710][ T5098] RSP: 002b:00007ffdfca7e2b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 95.484450][ T5098] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6018852427 [ 95.487518][ T5098] RDX: 0000000000000004 RSI: 00000000000001ff RDI: 0000000020000780 [ 95.490574][ T5098] RBP: 0000000020000780 R08: 0000000000000000 R09: 0000000000000000 [ 95.494540][ T5098] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 95.498626][ T5098] R13: 00007ffdfca7e350 R14: 0000000000000000 R15: 0000000000000000 [ 95.501707][ T5098] [ 95.502906][ T5098] Modules linked in: [ 95.504741][ T5098] ---[ end trace 0000000000000000 ]--- [ 95.679702][ T5098] RIP: 0010:__block_write_begin_int+0x19a7/0x1a70 [ 95.690070][ T5098] Code: 31 ff e8 cc 58 71 ff 48 89 d8 48 25 ff 0f 00 00 74 27 e8 dc 53 71 ff e9 c6 e7 ff ff e8 d2 53 71 ff 90 0f 0b e8 ca 53 71 ff 90 <0f> 0b e8 c2 53 71 ff 90 0f 0b e8 6a b2 a2 09 48 8b 5c 24 08 48 89 [ 95.709120][ T5098] RSP: 0018:ffffc9000179f9e0 EFLAGS: 00010293 [ 95.712059][ T5098] RAX: ffffffff82239386 RBX: 0000000000007372 RCX: ffff8880008ec880 [ 95.715440][ T5098] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000007372 [ 95.730178][ T5098] RBP: ffffc9000179fb50 R08: ffffffff82237bb3 R09: 1ffffd400021e7b8 [ 95.733314][ T5098] R10: dffffc0000000000 R11: fffff9400021e7b9 R12: 04fff5000000462d [ 95.737746][ T5098] R13: 0000000000000000 R14: 0000000000001000 R15: 0000000000007372 [ 95.750586][ T5098] FS: 000055558bc8f380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 [ 95.754204][ T5098] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.756874][ T5098] CR2: 00005597207fdc30 CR3: 00000000404c2000 CR4: 0000000000352ef0 [ 95.769443][ T5098] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.772751][ T5098] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.787071][ T5098] Kernel panic - not syncing: Fatal exception [ 95.789872][ T5098] Kernel Offset: disabled [ 95.791753][ T5098] Rebooting in 86400 seconds.. VM DIAGNOSIS: 09:06:07 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000000 RBX=ffff888030476000 RCX=ffffffff81db48af RDX=0000000000000003 RSI=0000000000000003 RDI=ffff88801accc048 RBP=ffffc90000e570b8 RSP=ffffc90000e56fe0 R8 =ffffffff8e61445f R9 =1ffffffff1cc288b R10=dffffc0000000000 R11=fffffbfff1cc288c R12=dffffc0000000000 R13=1ffff920001cae04 R14=0000000000000003 R15=0000000000000001 RIP=ffffffff82075400 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=00005597207fdc30 CR3=000000001e2d8000 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=0000000000000007 Opmask01=000000000e000000 Opmask02=0000000000001800 Opmask03=0000000000000000 Opmask04=00000000ffffffff Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000001 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffce3ee0dd0 0000003000000018 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 6565656565656565 6565656565656565 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ff00ff0000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffffffffffffffff ffffffffffff0000 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ff00ff0000000000 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 0a0a0a0a0a0a0a0a 0a0a0a0a0a0a0a0a 0a0a0a0a0a0a0a0a 0a0a0a0a0a0a0a0a ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 3d74696d696c2032 203d2073726f7463 65735f726e202c30 3430323d72000000 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 3774636763662032 2037207372657463 6573557264202630 3430323772000000 ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6761642f61724620 5d3128202020205b 5d2030393634382e 20332020205b3e20 ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2000622f20313920 3220282020202020 5720300000303224 2020202020303420 ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2a6f627e2a6d6463 7e696f7e65787a2a 6f7e630a003a3765 6478786f2a3a3779 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6d64636f6f784c2a 573b5e2a2a2a2a51 573e3a333c3e3224 3e392a2a2a51343c 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