./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1567722349 <...> Warning: Permanently added '10.128.10.25' (ED25519) to the list of known hosts. execve("./syz-executor1567722349", ["./syz-executor1567722349"], 0x7ffd94c503c0 /* 10 vars */) = 0 brk(NULL) = 0x55555dcea000 brk(0x55555dcead00) = 0x55555dcead00 arch_prctl(ARCH_SET_FS, 0x55555dcea380) = 0 set_tid_address(0x55555dcea650) = 5094 set_robust_list(0x55555dcea660, 24) = 0 rseq(0x55555dceaca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1567722349", 4096) = 28 getrandom("\x5d\x10\x2b\xe6\x8a\x5f\xdd\xcb", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555dcead00 brk(0x55555dd0bd00) = 0x55555dd0bd00 brk(0x55555dd0c000) = 0x55555dd0c000 mprotect(0x7fbe67ebe000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fbe5f800000 write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 munmap(0x7fbe5f800000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file0", 0777) = 0 [ 69.044273][ T5094] loop0: detected capacity change from 0 to 32768 [ 69.149181][ T5094] bcachefs (loop0): mounting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,nojournal_transaction_names [ 69.163326][ T5094] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 69.184346][ T5094] bcachefs (loop0): alloc_read... done [ 69.190067][ T5094] bcachefs (loop0): stripes_read... done mount("/dev/loop0", "./file0", "bcachefs", MS_NODEV|MS_SYNCHRONOUS|MS_RELATIME|MS_STRICTATIME, "\x30\x78\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x31\x38\x34\x34\x36\x37\x34\x34\x30\x37\x33\x37\x30\x39\x35\x35\x31\x36\x31\x35\xff\xff\xff\xff\xff\xff\xff\xff\x30\x78\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 69.195974][ T5094] bcachefs (loop0): snapshots_read... done [ 69.204009][ T5094] bcachefs (loop0): journal_replay... done [ 69.209851][ T5094] bcachefs (loop0): resume_logged_ops... done [ 69.216133][ T5094] bcachefs (loop0): going read-write [ 69.224117][ T5094] bcachefs (loop0): done starting filesystem ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 write(4, "\x08\x00\x00\x00\x85\xf0\x80\xa4\x93\x3d\x55\x26\x6e\x07\xe7\x99\xaa\x0c\xc4\x21\x38\x82\x42\xdf\x2a\x3c\x6b\x63\x1b\x65\xb1\xc0\x61\xed\xd2\xaa\x10\x8c\x35\x28\xfe\x9b\x0b\xb3\xa5\x3a\xb1\x20\x0f\x5d\x01\xa6\x8a\x4a\xcd\xec\x8f\xee\x09\x64\x82\x22\xf9\x08\xc1\xfe\xdc\x30\x00\x34\x2e\x61\x39\xde\x28\x36\x6c\x13\x50\x93\x06\xd0\x0e\xbc\xc6\x74\x97\x18\x1a\xc9\x16\xdb\x98\xaf\x9d\x36\x6b\x76\xe4\x27"..., 4102) = 4102 [ 69.340023][ T5094] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN PTI [ 69.352633][ T5094] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 69.361035][ T5094] CPU: 1 PID: 5094 Comm: syz-executor156 Not tainted 6.9.0-rc7-next-20240510-syzkaller #0 [ 69.370915][ T5094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 69.380964][ T5094] RIP: 0010:__bch2_insert_snapshot_whiteouts+0x306/0x15e0 [ 69.388092][ T5094] Code: fb 0f 86 c2 11 00 00 e8 28 d9 7c fd 49 6b c7 38 49 8d 5c 04 18 48 8d 7b 14 48 89 f8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df <42> 0f b6 04 20 84 c0 0f 85 3d 12 00 00 44 8b 7b 14 48 83 c3 18 48 [ 69.407700][ T5094] RSP: 0018:ffffc900037be0c0 EFLAGS: 00010203 [ 69.413768][ T5094] RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffff8880296b0000 [ 69.421740][ T5094] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000014 [ 69.429706][ T5094] RBP: ffffc900037be420 R08: ffffffff841942f8 R09: 1ffffffff25f64b0 [ 69.437679][ T5094] R10: dffffc0000000000 R11: fffffbfff25f64b1 R12: dffffc0000000000 [ 69.445662][ T5094] R13: ffffc900037be380 R14: ffffffff84194214 R15: 00000000ffffffff [ 69.453639][ T5094] FS: 000055555dcea380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 69.462568][ T5094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.469145][ T5094] CR2: 0000559e8263e0b0 CR3: 000000006fca6000 CR4: 00000000003506f0 [ 69.477126][ T5094] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.485099][ T5094] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.493064][ T5094] Call Trace: [ 69.496344][ T5094] [ 69.499274][ T5094] ? __die_body+0x88/0xe0 [ 69.503610][ T5094] ? die_addr+0x108/0x140 [ 69.507947][ T5094] ? exc_general_protection+0x3dd/0x5d0 [ 69.513536][ T5094] ? asm_exc_general_protection+0x26/0x30 [ 69.519261][ T5094] ? __bch2_insert_snapshot_whiteouts+0x1a4/0x15e0 [ 69.525768][ T5094] ? __bch2_insert_snapshot_whiteouts+0x288/0x15e0 [ 69.532296][ T5094] ? __bch2_insert_snapshot_whiteouts+0x306/0x15e0 [ 69.538813][ T5094] ? __lock_acquire+0x1346/0x1fd0 [ 69.543840][ T5094] ? __pfx___bch2_insert_snapshot_whiteouts+0x10/0x10 [ 69.550621][ T5094] ? bch2_btree_path_verify_level+0x369/0x1950 [ 69.556779][ T5094] ? mark_lock+0x9a/0x350 [ 69.561115][ T5094] ? __lock_acquire+0x1346/0x1fd0 [ 69.566134][ T5094] ? __pfx_bch2_btree_path_verify_level+0x10/0x10 [ 69.572660][ T5094] ? bch2_btree_iter_verify_ret+0x156/0x1450 [ 69.578656][ T5094] bch2_trans_update_extent_overwrite+0xfd6/0x3710 [ 69.585174][ T5094] ? __pfx_bch2_trans_update_extent_overwrite+0x10/0x10 [ 69.592131][ T5094] ? __pfx___bch2_btree_path_set_pos+0x10/0x10 [ 69.598293][ T5094] ? bch2_btree_iter_peek_upto+0x526b/0x7090 [ 69.604290][ T5094] ? bch2_btree_iter_verify_entry_exit+0x2e9/0x550 [ 69.610804][ T5094] ? bch2_btree_iter_peek_upto+0x5888/0x7090 [ 69.616788][ T5094] ? bch2_btree_iter_peek_upto+0x560b/0x7090 [ 69.622786][ T5094] ? bch2_trans_update+0x502/0x2550 [ 69.627996][ T5094] ? bch2_btree_iter_peek_upto+0x2ddc/0x7090 [ 69.633977][ T5094] ? __pfx_bch2_btree_iter_peek_upto+0x10/0x10 [ 69.640143][ T5094] ? bch2_btree_path_peek_slot+0x41d/0xfe0 [ 69.645957][ T5094] ? bch2_trans_update+0x924/0x2550 [ 69.651159][ T5094] ? bch2_trans_iter_init_outlined+0x253/0x4b0 [ 69.657321][ T5094] ? bch2_trans_iter_init_outlined+0x2eb/0x4b0 [ 69.663487][ T5094] ? bch2_trans_update+0x502/0x2550 [ 69.668703][ T5094] bch2_trans_update+0x186f/0x2550 [ 69.673824][ T5094] ? __pfx_bch2_trans_update+0x10/0x10 [ 69.679298][ T5094] ? bch2_trans_copy_iter+0x1fa/0x330 [ 69.684673][ T5094] ? __asan_memset+0x23/0x50 [ 69.689269][ T5094] ? bch2_trans_iter_exit+0x295/0x3e0 [ 69.694643][ T5094] ? bch2_extent_update_i_size_sectors+0x621/0x11d0 [ 69.701237][ T5094] ? bch2_trans_update+0x502/0x2550 [ 69.706467][ T5094] ? __pfx_bch2_extent_update_i_size_sectors+0x10/0x10 [ 69.713320][ T5094] ? __pfx_bch2_sum_sector_overwrites+0x10/0x10 [ 69.719563][ T5094] ? bch2_extent_update_i_size_sectors+0x239/0x11d0 [ 69.726157][ T5094] ? __bch2_btree_iter_traverse+0x120/0x200 [ 69.732053][ T5094] bch2_extent_update+0x43c/0xbb0 [ 69.737083][ T5094] ? __pfx_bch2_extent_update+0x10/0x10 [ 69.742630][ T5094] ? __bch2_bkey_get_iter+0xf0/0x2a0 [ 69.747916][ T5094] ? trace_kmalloc+0x1f/0xd0 [ 69.752511][ T5094] ? bch2_bkey_set_needs_rebalance+0xf8/0x6a0 [ 69.758578][ T5094] ? __bch2_write_index+0xcd7/0x2190 [ 69.763878][ T5094] __bch2_write_index+0xee9/0x2190 [ 69.769015][ T5094] ? __pfx___bch2_write_index+0x10/0x10 [ 69.774579][ T5094] ? __bch2_write_index+0xbc3/0x2190 [ 69.779870][ T5094] ? bch2_keylist_realloc+0x13c/0x270 [ 69.785250][ T5094] ? bch2_write+0xbf0/0x1670 [ 69.789847][ T5094] bch2_write+0xf4d/0x1670 [ 69.794280][ T5094] ? writeback_iter+0x123a/0x18d0 [ 69.799309][ T5094] ? __pfx_bch2_write+0x10/0x10 [ 69.804168][ T5094] ? blk_start_plug+0x70/0x1b0 [ 69.808938][ T5094] bch2_writepages+0x27d/0x380 [ 69.813725][ T5094] ? __pfx_bch2_writepages+0x10/0x10 [ 69.819015][ T5094] ? __lock_acquire+0x1346/0x1fd0 [ 69.824043][ T5094] ? __pfx_bch2_writepages+0x10/0x10 [ 69.829331][ T5094] do_writepages+0x359/0x870 [ 69.833931][ T5094] ? __pfx_do_writepages+0x10/0x10 [ 69.839045][ T5094] ? filemap_fdatawrite_wbc+0x11a/0x180 [ 69.844589][ T5094] ? do_raw_spin_lock+0x14f/0x370 [ 69.849619][ T5094] ? __pfx_lock_release+0x10/0x10 [ 69.854647][ T5094] ? do_raw_spin_unlock+0x13c/0x8b0 [ 69.859849][ T5094] ? wbc_attach_and_unlock_inode+0xbe/0x580 [ 69.865746][ T5094] filemap_fdatawrite_wbc+0x125/0x180 [ 69.871122][ T5094] file_write_and_wait_range+0x1aa/0x290 [ 69.876777][ T5094] ? __pfx_file_write_and_wait_range+0x10/0x10 [ 69.882965][ T5094] ? up_write+0x1a9/0x590 [ 69.887307][ T5094] ? __pfx_up_write+0x10/0x10 [ 69.892005][ T5094] bch2_fsync+0x93/0x130 [ 69.896285][ T5094] bch2_write_iter+0x262e/0x2840 [ 69.901245][ T5094] ? __pfx_bch2_write_iter+0x10/0x10 [ 69.906528][ T5094] ? rcu_read_lock_any_held+0xb7/0x160 [ 69.911994][ T5094] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 69.917889][ T5094] vfs_write+0xa72/0xc90 [ 69.922137][ T5094] ? __pfx_bch2_write_iter+0x10/0x10 [ 69.927435][ T5094] ? __pfx_vfs_write+0x10/0x10 [ 69.932219][ T5094] ? lockdep_hardirqs_on+0x99/0x150 [ 69.937428][ T5094] ? __fdget_pos+0x272/0x320 [ 69.942036][ T5094] ksys_write+0x1a0/0x2c0 [ 69.946386][ T5094] ? __pfx_ksys_write+0x10/0x10 [ 69.951243][ T5094] ? do_syscall_64+0x102/0x240 [ 69.956023][ T5094] do_syscall_64+0xf5/0x240 [ 69.960536][ T5094] ? clear_bhb_loop+0x35/0x90 [ 69.965210][ T5094] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.971129][ T5094] RIP: 0033:0x7fbe67e38979 [ 69.975552][ T5094] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 69.995153][ T5094] RSP: 002b:00007ffd7ce752c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 70.003565][ T5094] RAX: ffffffffffffffda RBX: 00007fbe67e8104b RCX: 00007fbe67e38979 [ 70.011531][ T5094] RDX: 000000000000000b RSI: 0000000020000680 RDI: 0000000000000004 [ 70.019495][ T5094] RBP: 00007fbe67ebe610 R08: 00007ffd7ce75498 R09: 00007ffd7ce75498 [ 70.027460][ T5094] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 70.035423][ T5094] R13: 00007ffd7ce75488 R14: 0000000000000001 R15: 0000000000000001 [ 70.043395][ T5094] [ 70.046414][ T5094] Modules linked in: [ 70.050816][ T5094] ---[ end trace 0000000000000000 ]--- [ 70.058991][ T5094] RIP: 0010:__bch2_insert_snapshot_whiteouts+0x306/0x15e0 [ 70.066209][ T5094] Code: fb 0f 86 c2 11 00 00 e8 28 d9 7c fd 49 6b c7 38 49 8d 5c 04 18 48 8d 7b 14 48 89 f8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df <42> 0f b6 04 20 84 c0 0f 85 3d 12 00 00 44 8b 7b 14 48 83 c3 18 48 [ 70.085883][ T5094] RSP: 0018:ffffc900037be0c0 EFLAGS: 00010203 [ 70.092004][ T5094] RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffff8880296b0000 [ 70.100035][ T5094] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000014 [ 70.108056][ T5094] RBP: ffffc900037be420 R08: ffffffff841942f8 R09: 1ffffffff25f64b0 [ 70.116103][ T5094] R10: dffffc0000000000 R11: fffffbfff25f64b1 R12: dffffc0000000000 [ 70.124119][ T5094] R13: ffffc900037be380 R14: ffffffff84194214 R15: 00000000ffffffff [ 70.132098][ T5094] FS: 000055555dcea380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 70.141051][ T5094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.147664][ T5094] CR2: 000000002000193c CR3: 000000006fca6000 CR4: 00000000003506f0 [ 70.155668][ T5094] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.163705][ T5094] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.171689][ T5094] Kernel panic - not syncing: Fatal exception [ 70.178048][ T5094] Kernel Offset: disabled [ 70.182369][ T5094] Rebooting in 86400 seconds..