./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3417902410 <...> Warning: Permanently added '10.128.1.168' (ED25519) to the list of known hosts. execve("./syz-executor3417902410", ["./syz-executor3417902410"], 0x7ffdfbb2dfd0 /* 10 vars */) = 0 brk(NULL) = 0x555572e1d000 brk(0x555572e1dd00) = 0x555572e1dd00 arch_prctl(ARCH_SET_FS, 0x555572e1d380) = 0 set_tid_address(0x555572e1d650) = 5091 set_robust_list(0x555572e1d660, 24) = 0 rseq(0x555572e1dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3417902410", 4096) = 28 getrandom("\x69\xeb\xf2\x62\xc9\x55\x2a\x42", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555572e1dd00 brk(0x555572e3ed00) = 0x555572e3ed00 brk(0x555572e3f000) = 0x555572e3f000 mprotect(0x7f28ce970000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached , child_tidptr=0x555572e1d650) = 5092 [pid 5092] set_robust_list(0x555572e1d660, 24) = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5092] write(1, "executing program\n", 18executing program ) = 18 [pid 5092] memfd_create("syzkaller", 0) = 3 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f28c6400000 [pid 5092] 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 [pid 5092] munmap(0x7f28c6400000, 138412032) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5092] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5092] close(3) = 0 [pid 5092] close(4) = 0 [pid 5092] mkdir("./file0", 0777) = 0 syzkaller login: [ 79.686308][ T5092] loop0: detected capacity change from 0 to 32768 [ 79.716407][ T5092] BUG: unable to handle page fault for address: ffffed110a6e4959 [ 79.724289][ T5092] #PF: supervisor read access in kernel mode [ 79.730374][ T5092] #PF: error_code(0x0000) - not-present page [ 79.736382][ T5092] PGD 23ffee067 P4D 23ffee067 PUD 0 [ 79.741694][ T5092] Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI [ 79.747778][ T5092] CPU: 1 PID: 5092 Comm: syz-executor341 Not tainted 6.10.0-syzkaller-02711-g0434dbe32053 #0 [ 79.757964][ T5092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 79.768054][ T5092] RIP: 0010:bch2_dirent_to_text+0xba/0x2f0 [ 79.773905][ T5092] Code: bf 09 00 00 00 48 89 de e8 03 ce 78 fd 48 83 fb 08 77 09 e8 18 c9 78 fd 31 d2 eb 53 8d 45 fa 49 8d 1c c4 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 e7 4e db fd c1 e5 03 48 8b 1b 31 [ 79.793896][ T5092] RSP: 0018:ffffc90002d3ed90 EFLAGS: 00010a06 [ 79.799975][ T5092] RAX: 1ffff1110a6e4959 RBX: ffff888853724ac8 RCX: ffff888026263c00 [ 79.808042][ T5092] RDX: 0000000000000000 RSI: ffffffffffffffd8 RDI: 0000000000000009 [ 79.816014][ T5092] RBP: 0000000000000000 R08: ffffffff841d92fd R09: 0000000000000020 [ 79.824018][ T5092] R10: dffffc0000000000 R11: ffffffff841d9260 R12: ffff888053724af8 [ 79.831990][ T5092] R13: dffffc0000000000 R14: ffffc90002d3f540 R15: ffff888053724ad2 [ 79.839974][ T5092] FS: 0000555572e1d380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 79.848907][ T5092] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.855515][ T5092] CR2: ffffed110a6e4959 CR3: 00000000795e8000 CR4: 00000000003506f0 [ 79.863510][ T5092] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.871497][ T5092] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.879467][ T5092] Call Trace: [ 79.882746][ T5092] [ 79.885682][ T5092] ? __die_body+0x88/0xe0 [ 79.890120][ T5092] ? page_fault_oops+0x8e4/0xcc0 [ 79.895059][ T5092] ? vsnprintf+0x948/0x1da0 [ 79.899589][ T5092] ? __pfx_page_fault_oops+0x10/0x10 [ 79.904961][ T5092] ? format_decode+0x6bc/0x1bb0 [ 79.909814][ T5092] ? is_prefetch+0x4ed/0x780 [ 79.914418][ T5092] ? __pfx_is_prefetch+0x10/0x10 [ 79.919458][ T5092] ? vsnprintf+0x948/0x1da0 [ 79.924104][ T5092] ? __bad_area_nosemaphore+0x118/0x770 [ 79.929688][ T5092] ? printbuf_do_indent+0x9a1/0x9d0 [ 79.935083][ T5092] ? __pfx___bad_area_nosemaphore+0x10/0x10 [ 79.941001][ T5092] ? spurious_kernel_fault+0x11e/0x5d0 [ 79.946474][ T5092] ? exc_page_fault+0x5c8/0x8c0 [ 79.951330][ T5092] ? bch2_bkey_to_text+0x217/0x330 [ 79.956470][ T5092] ? asm_exc_page_fault+0x26/0x30 [ 79.961718][ T5092] ? __pfx_bch2_dirent_to_text+0x10/0x10 [ 79.967381][ T5092] ? bch2_dirent_to_text+0x9d/0x2f0 [ 79.972607][ T5092] ? bch2_dirent_to_text+0xba/0x2f0 [ 79.977819][ T5092] journal_entry_btree_keys_to_text+0x1d7/0x390 [ 79.984089][ T5092] bch2_sb_clean_to_text+0x138/0x240 [ 79.989387][ T5092] bch2_sb_field_validate+0x201/0x2e0 [ 79.994765][ T5092] ? __pfx_bch2_sb_field_validate+0x10/0x10 [ 80.000686][ T5092] ? BCH_SB_BACKGROUND_COMPRESSION_TYPE+0x1b/0x80 [ 80.007206][ T5092] ? bch2_opt_validate+0x2ca/0x300 [ 80.012352][ T5092] bch2_sb_validate+0xa69/0xe00 [ 80.017227][ T5092] ? blk_status_to_errno+0x22/0x80 [ 80.022564][ T5092] ? __pfx_bch2_sb_validate+0x10/0x10 [ 80.028040][ T5092] ? read_one_super+0xe23/0xf40 [ 80.033372][ T5092] ? bch2_sb_realloc+0x422/0x660 [ 80.038506][ T5092] ? kfree+0x4e/0x360 [ 80.042520][ T5092] ? __pfx_read_one_super+0x10/0x10 [ 80.047741][ T5092] ? __pfx_bch2_sb_realloc+0x10/0x10 [ 80.053044][ T5092] ? bdev_file_open_by_path+0x385/0x480 [ 80.058688][ T5092] ? __pfx_bdev_file_open_by_path+0x10/0x10 [ 80.064598][ T5092] ? trace_kmalloc+0x1f/0xd0 [ 80.069208][ T5092] ? __asan_memcpy+0x40/0x70 [ 80.073814][ T5092] __bch2_read_super+0xc1b/0x1370 [ 80.078948][ T5092] ? stack_depot_save_flags+0x6e4/0x830 [ 80.084505][ T5092] ? __pfx___bch2_read_super+0x10/0x10 [ 80.090045][ T5092] ? __bch2_darray_resize+0x12f/0x1d0 [ 80.095443][ T5092] ? rcu_is_watching+0x15/0xb0 [ 80.100338][ T5092] ? __bch2_darray_resize+0x12f/0x1d0 [ 80.105737][ T5092] bch2_fs_open+0x246/0xdf0 [ 80.110261][ T5092] ? __pfx_bch2_test_super+0x10/0x10 [ 80.115652][ T5092] ? kasan_save_track+0x51/0x80 [ 80.120690][ T5092] ? kasan_save_track+0x3f/0x80 [ 80.125647][ T5092] ? kasan_save_free_info+0x40/0x50 [ 80.130891][ T5092] ? poison_slab_object+0xe0/0x150 [ 80.136020][ T5092] ? __kasan_slab_free+0x37/0x60 [ 80.140984][ T5092] ? kfree+0x149/0x360 [ 80.145075][ T5092] ? sget+0x2b8/0x620 [ 80.149101][ T5092] ? bch2_mount+0x5e6/0x13c0 [ 80.153806][ T5092] ? legacy_get_tree+0xee/0x190 [ 80.158666][ T5092] ? vfs_get_tree+0x90/0x2a0 [ 80.163261][ T5092] ? do_new_mount+0x2be/0xb40 [ 80.167950][ T5092] ? __se_sys_mount+0x2d6/0x3c0 [ 80.172815][ T5092] ? do_syscall_64+0xf3/0x230 [ 80.177524][ T5092] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 80.183612][ T5092] ? __pfx_bch2_fs_open+0x10/0x10 [ 80.188697][ T5092] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 80.195056][ T5092] ? __pfx_bch2_test_super+0x10/0x10 [ 80.200448][ T5092] ? sget+0x2b8/0x620 [ 80.204453][ T5092] ? __pfx_bch2_noset_super+0x10/0x10 [ 80.209848][ T5092] bch2_mount+0x6b0/0x13c0 [ 80.214341][ T5092] ? __pfx_bch2_mount+0x10/0x10 [ 80.219243][ T5092] ? vfs_parse_fs_string+0x190/0x230 [ 80.224643][ T5092] ? kfree+0x4e/0x360 [ 80.228890][ T5092] ? vfs_parse_fs_string+0x190/0x230 [ 80.234287][ T5092] ? __pfx_vfs_parse_fs_string+0x10/0x10 [ 80.240026][ T5092] ? cap_capable+0x1b4/0x250 [ 80.244633][ T5092] legacy_get_tree+0xee/0x190 [ 80.249320][ T5092] ? __pfx_bch2_mount+0x10/0x10 [ 80.254181][ T5092] vfs_get_tree+0x90/0x2a0 [ 80.258713][ T5092] do_new_mount+0x2be/0xb40 [ 80.263250][ T5092] ? __pfx_do_new_mount+0x10/0x10 [ 80.268290][ T5092] __se_sys_mount+0x2d6/0x3c0 [ 80.273019][ T5092] ? __pfx___se_sys_mount+0x10/0x10 [ 80.278239][ T5092] ? do_syscall_64+0x100/0x230 [ 80.283029][ T5092] ? __x64_sys_mount+0x20/0xc0 [ 80.287807][ T5092] do_syscall_64+0xf3/0x230 [ 80.292329][ T5092] ? clear_bhb_loop+0x35/0x90 [ 80.297031][ T5092] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 80.302941][ T5092] RIP: 0033:0x7f28ce8ed0aa [ 80.307457][ T5092] 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 [ 80.327091][ T5092] RSP: 002b:00007ffe11d678d8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 80.335524][ T5092] RAX: ffffffffffffffda RBX: 00007ffe11d678f0 RCX: 00007f28ce8ed0aa [ 80.343508][ T5092] RDX: 0000000020011a00 RSI: 0000000020000000 RDI: 00007ffe11d678f0 [ 80.351476][ T5092] RBP: 0000000000000004 R08: 00007ffe11d67930 R09: 00000000000119f7 [ 80.359454][ T5092] R10: 0000000001200014 R11: 0000000000000282 R12: 0000000001200014 [ 80.367438][ T5092] R13: 00007ffe11d67930 R14: 0000000000000003 R15: 0000000001000000 [ 80.375423][ T5092] [ 80.378539][ T5092] Modules linked in: [ 80.382714][ T5092] CR2: ffffed110a6e4959 [ 80.386869][ T5092] ---[ end trace 0000000000000000 ]--- [ 80.392353][ T5092] RIP: 0010:bch2_dirent_to_text+0xba/0x2f0 [ 80.398182][ T5092] Code: bf 09 00 00 00 48 89 de e8 03 ce 78 fd 48 83 fb 08 77 09 e8 18 c9 78 fd 31 d2 eb 53 8d 45 fa 49 8d 1c c4 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 e7 4e db fd c1 e5 03 48 8b 1b 31 [ 80.417930][ T5092] RSP: 0018:ffffc90002d3ed90 EFLAGS: 00010a06 [ 80.424378][ T5092] RAX: 1ffff1110a6e4959 RBX: ffff888853724ac8 RCX: ffff888026263c00 [ 80.432357][ T5092] RDX: 0000000000000000 RSI: ffffffffffffffd8 RDI: 0000000000000009 [ 80.440338][ T5092] RBP: 0000000000000000 R08: ffffffff841d92fd R09: 0000000000000020 [ 80.448313][ T5092] R10: dffffc0000000000 R11: ffffffff841d9260 R12: ffff888053724af8 [ 80.456663][ T5092] R13: dffffc0000000000 R14: ffffc90002d3f540 R15: ffff888053724ad2 [ 80.464747][ T5092] FS: 0000555572e1d380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 80.473693][ T5092] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.480481][ T5092] CR2: ffffed110a6e4959 CR3: 00000000795e8000 CR4: 00000000003506f0 [ 80.488550][ T5092] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.496554][ T5092] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.504535][ T5092] Kernel panic - not syncing: Fatal exception [ 80.510911][ T5092] Kernel Offset: disabled [ 80.515271][ T5092] Rebooting in 86400 seconds..