./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3104016511 <...> Warning: Permanently added '10.128.1.173' (ED25519) to the list of known hosts. execve("./syz-executor3104016511", ["./syz-executor3104016511"], 0x7fff2190e1c0 /* 10 vars */) = 0 brk(NULL) = 0x5555618f8000 brk(0x5555618f8d00) = 0x5555618f8d00 arch_prctl(ARCH_SET_FS, 0x5555618f8380) = 0 set_tid_address(0x5555618f8650) = 5216 set_robust_list(0x5555618f8660, 24) = 0 rseq(0x5555618f8ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3104016511", 4096) = 28 getrandom("\x8d\x2c\x09\x64\x98\xaf\x2e\x4c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555618f8d00 brk(0x555561919d00) = 0x555561919d00 brk(0x55556191a000) = 0x55556191a000 mprotect(0x7f8ed1064000, 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 5217 attached , child_tidptr=0x5555618f8650) = 5217 [pid 5217] set_robust_list(0x5555618f8660, 24) = 0 [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5217] setpgid(0, 0) = 0 [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5217] write(3, "1000", 4) = 4 [pid 5217] close(3) = 0 executing program [pid 5217] write(1, "executing program\n", 18) = 18 [pid 5217] memfd_create("syzkaller", 0) = 3 [pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8ec8a00000 [pid 5217] 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 5217] munmap(0x7f8ec8a00000, 138412032) = 0 [pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5217] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5217] close(3) = 0 [pid 5217] close(4) = 0 [pid 5217] mkdir("./file0", 0777) = 0 [pid 5217] mount("/dev/loop0", "./file0", "jfs", MS_SILENT|MS_I_VERSION, "usrquota,errors=continue,nodiscard,usrquota,errors=remount-ro,discard,resize=0x0") = 0 [pid 5217] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5217] chdir("./file0") = 0 [pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5217] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 4 [ 62.239200][ T5217] loop0: detected capacity change from 0 to 32768 [ 62.391225][ T5217] ------------[ cut here ]------------ [ 62.396878][ T5217] UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2902:18 [ 62.404730][ T5217] index -3 is out of range for type 's8[1365]' (aka 'signed char[1365]') [ 62.413199][ T5217] CPU: 0 UID: 0 PID: 5217 Comm: syz-executor310 Not tainted 6.11.0-rc3-syzkaller-00156-gd7a5aa4b3c00 #0 [ 62.424301][ T5217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 62.434362][ T5217] Call Trace: [ 62.437628][ T5217] [ 62.440546][ T5217] dump_stack_lvl+0x241/0x360 [ 62.445237][ T5217] ? __pfx_dump_stack_lvl+0x10/0x10 [ 62.450423][ T5217] ? __pfx__printk+0x10/0x10 [ 62.455004][ T5217] ? filemap_get_entry+0x328/0x3b0 [ 62.460120][ T5217] __ubsan_handle_out_of_bounds+0x121/0x150 [ 62.466014][ T5217] dbAdjTree+0x377/0x520 [ 62.470260][ T5217] dbAllocBits+0x4ea/0x990 [ 62.474851][ T5217] dbAllocDmap+0x6d/0x150 [ 62.479197][ T5217] dbAlloc+0x509/0xca0 [ 62.483262][ T5217] ? __pfx_dbAlloc+0x10/0x10 [ 62.487857][ T5217] extAlloc+0x4f8/0x1010 [ 62.492284][ T5217] ? __pfx_extAlloc+0x10/0x10 [ 62.496956][ T5217] ? down_write_nested+0x195/0x220 [ 62.502058][ T5217] ? __pfx_down_write_nested+0x10/0x10 [ 62.507517][ T5217] jfs_get_block+0x41b/0xe60 [ 62.512113][ T5217] ? __pfx_jfs_get_block+0x10/0x10 [ 62.517224][ T5217] ? folio_batch_add_and_move+0x165/0x2b0 [ 62.522945][ T5217] __block_write_begin_int+0x50c/0x1a70 [ 62.528503][ T5217] ? __pfx_jfs_get_block+0x10/0x10 [ 62.533608][ T5217] ? __pfx___block_write_begin_int+0x10/0x10 [ 62.539588][ T5217] ? __pfx_jfs_get_block+0x10/0x10 [ 62.544690][ T5217] block_write_begin+0x9b/0x1e0 [ 62.549535][ T5217] jfs_write_begin+0x31/0x70 [ 62.554119][ T5217] generic_perform_write+0x399/0x840 [ 62.559405][ T5217] ? __pfx_generic_perform_write+0x10/0x10 [ 62.565209][ T5217] ? __generic_file_write_iter+0x105/0x230 [ 62.571007][ T5217] generic_file_write_iter+0xaf/0x310 [ 62.576373][ T5217] vfs_write+0xa72/0xc90 [ 62.580610][ T5217] ? __pfx_generic_file_write_iter+0x10/0x10 [ 62.586581][ T5217] ? __pfx_vfs_write+0x10/0x10 [ 62.591345][ T5217] ? lockdep_hardirqs_on+0x99/0x150 [ 62.596550][ T5217] ksys_write+0x1a0/0x2c0 [ 62.600879][ T5217] ? __pfx_ksys_write+0x10/0x10 [ 62.605723][ T5217] ? exc_page_fault+0x590/0x8c0 [ 62.610579][ T5217] do_syscall_64+0xf3/0x230 [ 62.615078][ T5217] ? clear_bhb_loop+0x35/0x90 [ 62.619751][ T5217] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.625642][ T5217] RIP: 0033:0x7f8ed0fe9e99 [ 62.630065][ T5217] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 62.649663][ T5217] RSP: 002b:00007ffed45f7398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 62.658072][ T5217] RAX: ffffffffffffffda RBX: 00007f8ed1033095 RCX: 00007f8ed0fe9e99 [ 62.666036][ T5217] RDX: 00000000fffffdef RSI: 00000000200000c0 RDI: 0000000000000004 [ 62.674005][ T5217] RBP: 00007f8ed10645f0 R08: 00005555618f94c0 R09: 00005555618f94c0 [ 62.681973][ T5217] R10: 0000000000006289 R11: 0000000000000246 R12: 00007ffed45f73c0 [ 62.689935][ T5217] R13: 00007ffed45f75e8 R14: 431bde82d7b634db R15: 00007f8ed103303b [ 62.697914][ T5217] [ 62.704242][ T5217] ---[ end trace ]--- [ 62.708262][ T5217] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 62.715447][ T5217] CPU: 0 UID: 0 PID: 5217 Comm: syz-executor310 Not tainted 6.11.0-rc3-syzkaller-00156-gd7a5aa4b3c00 #0 [ 62.726718][ T5217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 62.736764][ T5217] Call Trace: [ 62.740028][ T5217] [ 62.742947][ T5217] dump_stack_lvl+0x241/0x360 [ 62.747618][ T5217] ? __pfx_dump_stack_lvl+0x10/0x10 [ 62.752800][ T5217] ? __pfx__printk+0x10/0x10 [ 62.757380][ T5217] ? vprintk_emit+0x631/0x770 [ 62.762046][ T5217] ? vscnprintf+0x5d/0x90 [ 62.766365][ T5217] panic+0x349/0x860 [ 62.770248][ T5217] ? check_panic_on_warn+0x21/0xb0 [ 62.775347][ T5217] ? __pfx_panic+0x10/0x10 [ 62.779746][ T5217] ? _printk+0xd5/0x120 [ 62.783891][ T5217] ? __pfx__printk+0x10/0x10 [ 62.788468][ T5217] ? filemap_get_entry+0x328/0x3b0 [ 62.793575][ T5217] check_panic_on_warn+0x86/0xb0 [ 62.798499][ T5217] __ubsan_handle_out_of_bounds+0x141/0x150 [ 62.804397][ T5217] dbAdjTree+0x377/0x520 [ 62.808648][ T5217] dbAllocBits+0x4ea/0x990 [ 62.813086][ T5217] dbAllocDmap+0x6d/0x150 [ 62.817435][ T5217] dbAlloc+0x509/0xca0 [ 62.821520][ T5217] ? __pfx_dbAlloc+0x10/0x10 [ 62.826155][ T5217] extAlloc+0x4f8/0x1010 [ 62.830415][ T5217] ? __pfx_extAlloc+0x10/0x10 [ 62.835260][ T5217] ? down_write_nested+0x195/0x220 [ 62.840361][ T5217] ? __pfx_down_write_nested+0x10/0x10 [ 62.845820][ T5217] jfs_get_block+0x41b/0xe60 [ 62.850414][ T5217] ? __pfx_jfs_get_block+0x10/0x10 [ 62.855529][ T5217] ? folio_batch_add_and_move+0x165/0x2b0 [ 62.861248][ T5217] __block_write_begin_int+0x50c/0x1a70 [ 62.866801][ T5217] ? __pfx_jfs_get_block+0x10/0x10 [ 62.871905][ T5217] ? __pfx___block_write_begin_int+0x10/0x10 [ 62.877888][ T5217] ? __pfx_jfs_get_block+0x10/0x10 [ 62.883002][ T5217] block_write_begin+0x9b/0x1e0 [ 62.887847][ T5217] jfs_write_begin+0x31/0x70 [ 62.892430][ T5217] generic_perform_write+0x399/0x840 [ 62.897808][ T5217] ? __pfx_generic_perform_write+0x10/0x10 [ 62.903608][ T5217] ? __generic_file_write_iter+0x105/0x230 [ 62.909405][ T5217] generic_file_write_iter+0xaf/0x310 [ 62.914773][ T5217] vfs_write+0xa72/0xc90 [ 62.919008][ T5217] ? __pfx_generic_file_write_iter+0x10/0x10 [ 62.924978][ T5217] ? __pfx_vfs_write+0x10/0x10 [ 62.929739][ T5217] ? lockdep_hardirqs_on+0x99/0x150 [ 62.934941][ T5217] ksys_write+0x1a0/0x2c0 [ 62.939264][ T5217] ? __pfx_ksys_write+0x10/0x10 [ 62.944101][ T5217] ? exc_page_fault+0x590/0x8c0 [ 62.948952][ T5217] do_syscall_64+0xf3/0x230 [ 62.953446][ T5217] ? clear_bhb_loop+0x35/0x90 [ 62.958120][ T5217] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.964004][ T5217] RIP: 0033:0x7f8ed0fe9e99 [ 62.968417][ T5217] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 62.988038][ T5217] RSP: 002b:00007ffed45f7398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 62.996455][ T5217] RAX: ffffffffffffffda RBX: 00007f8ed1033095 RCX: 00007f8ed0fe9e99 [ 63.004421][ T5217] RDX: 00000000fffffdef RSI: 00000000200000c0 RDI: 0000000000000004 [ 63.012383][ T5217] RBP: 00007f8ed10645f0 R08: 00005555618f94c0 R09: 00005555618f94c0 [ 63.020347][ T5217] R10: 0000000000006289 R11: 0000000000000246 R12: 00007ffed45f73c0 [ 63.028309][ T5217] R13: 00007ffed45f75e8 R14: 431bde82d7b634db R15: 00007f8ed103303b [ 63.036288][ T5217] [ 63.039403][ T5217] Kernel Offset: disabled [ 63.043760][ T5217] Rebooting in 86400 seconds..