./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor353359368
<...>
Warning: Permanently added '10.128.15.200' (ECDSA) to the list of known hosts.
execve("./syz-executor353359368", ["./syz-executor353359368"], 0x7ffdef390350 /* 10 vars */) = 0
brk(NULL) = 0x555556643000
brk(0x555556643c40) = 0x555556643c40
arch_prctl(ARCH_SET_FS, 0x555556643300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor353359368", 4096) = 27
brk(0x555556664c40) = 0x555556664c40
brk(0x555556665000) = 0x555556665000
mprotect(0x7fd240d32000, 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) = 0x7fd238873000
[ 70.865493][ T4993] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4993 'syz-executor353'
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(0x7fd238873000, 16777216) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 3) = 0
close(3) = 0
mkdir("./bus", 0777) = 0
mount("/dev/loop0", "./bus", "jfs", MS_NOSUID|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "discard,discard,usrquota,usrquota,quota,iocharset=iso8859-7,iocharset=default") = 0
openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3
chdir("./bus") = 0
ioctl(4, LOOP_CLR_FD) = 0
close(4) = 0
openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[ 71.043086][ T4993] loop0: detected capacity change from 0 to 32768
[ 71.324179][ T4993] ================================================================================
[ 71.333700][ T4993] UBSAN: shift-out-of-bounds in fs/jfs/jfs_extent.c:314:16
[ 71.340900][ T4993] shift exponent -1 is negative
[ 71.345823][ T4993] CPU: 0 PID: 4993 Comm: syz-executor353 Not tainted 6.4.0-syzkaller-10098-g995b406c7e97 #0
[ 71.355908][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
[ 71.365961][ T4993] Call Trace:
[ 71.369235][ T4993]
[ 71.372164][ T4993] dump_stack_lvl+0x1e7/0x2d0
[ 71.376871][ T4993] ? nf_tcp_handle_invalid+0x650/0x650
[ 71.382370][ T4993] ? panic+0x770/0x770
[ 71.386459][ T4993] ? extAlloc+0x10a/0x1010
[ 71.390881][ T4993] __ubsan_handle_shift_out_of_bounds+0x3c3/0x420
[ 71.397335][ T4993] ? do_raw_spin_unlock+0x13b/0x8b0
[ 71.402569][ T4993] extAlloc+0xe53/0x1010
[ 71.406884][ T4993] ? jfs_ioc_trim+0x660/0x660
[ 71.411580][ T4993] ? clear_nonspinnable+0x60/0x60
[ 71.416642][ T4993] jfs_get_block+0x41b/0xe60
[ 71.421257][ T4993] ? jfs_dirty_inode+0x240/0x240
[ 71.426222][ T4993] ? _raw_spin_unlock+0x28/0x40
[ 71.431098][ T4993] ? folio_create_buffers+0x132/0x250
[ 71.436480][ T4993] __block_write_begin_int+0x555/0x1a60
[ 71.442044][ T4993] ? jfs_dirty_inode+0x240/0x240
[ 71.446989][ T4993] ? folio_zero_new_buffers+0x540/0x540
[ 71.452547][ T4993] ? pagecache_get_page+0xeb/0x220
[ 71.457672][ T4993] ? jfs_dirty_inode+0x240/0x240
[ 71.462622][ T4993] block_write_begin+0x9c/0x1f0
[ 71.467467][ T4993] ? jfs_write_begin+0x1a/0x70
[ 71.472235][ T4993] jfs_write_begin+0x31/0x70
[ 71.476831][ T4993] generic_perform_write+0x31b/0x630
[ 71.482137][ T4993] ? generic_file_direct_write+0x3f0/0x3f0
[ 71.487943][ T4993] ? generic_write_checks_count+0x490/0x490
[ 71.493935][ T4993] ? rcu_read_lock_any_held+0xb7/0x160
[ 71.499412][ T4993] ? __generic_file_write_iter+0x101/0x230
[ 71.505242][ T4993] generic_file_write_iter+0xaf/0x310
[ 71.510631][ T4993] vfs_write+0x782/0xaf0
[ 71.514890][ T4993] ? file_end_write+0x250/0x250
[ 71.519769][ T4993] ? lockdep_hardirqs_on+0x98/0x140
[ 71.524979][ T4993] ? __fdget_pos+0x265/0x2f0
[ 71.529579][ T4993] ksys_write+0x1a0/0x2c0
[ 71.533919][ T4993] ? __ia32_sys_read+0x90/0x90
[ 71.538688][ T4993] ? syscall_enter_from_user_mode+0x32/0x230
[ 71.544674][ T4993] ? syscall_enter_from_user_mode+0x8c/0x230
[ 71.550655][ T4993] do_syscall_64+0x41/0xc0
[ 71.555068][ T4993] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 71.560955][ T4993] RIP: 0033:0x7fd240cbfd09
[ 71.565373][ T4993] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48
[ 71.585077][ T4993] RSP: 002b:00007fff276966c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 71.593496][ T4993] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd240cbfd09
[ 71.601471][ T4993] RDX: 000000006db6e559 RSI: 0000000020000240 RDI: 0000000000000004
[ 71.609457][ T4993] RBP: 00007fd240c7f310 R08: 0000000000000000 R09: 0000000000000000
[ 71.617423][ T4993] R10: 0000000000005fee R11: 0000000000000246 R12: 00007fd240c7f3a0
[ 71.625389][ T4993] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 71.633384][ T4993]
[ 71.636768][ T4993] ================================================================================
[ 71.646210][ T4993] Kernel panic - not syncing: UBSAN: panic_on_warn set ...
[ 71.653435][ T4993] CPU: 0 PID: 4993 Comm: syz-executor353 Not tainted 6.4.0-syzkaller-10098-g995b406c7e97 #0
[ 71.663509][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
[ 71.673567][ T4993] Call Trace:
[ 71.676855][ T4993]
[ 71.679791][ T4993] dump_stack_lvl+0x1e7/0x2d0
[ 71.684486][ T4993] ? nf_tcp_handle_invalid+0x650/0x650
[ 71.689958][ T4993] ? panic+0x770/0x770
[ 71.694048][ T4993] ? vscnprintf+0x5d/0x80
[ 71.698385][ T4993] panic+0x30f/0x770
[ 71.702298][ T4993] ? check_panic_on_warn+0x21/0xa0
[ 71.707413][ T4993] ? __memcpy_flushcache+0x2b0/0x2b0
[ 71.712707][ T4993] ? dump_stack_lvl+0x253/0x2d0
[ 71.717573][ T4993] check_panic_on_warn+0x82/0xa0
[ 71.722520][ T4993] __ubsan_handle_shift_out_of_bounds+0x3e2/0x420
[ 71.728957][ T4993] ? do_raw_spin_unlock+0x13b/0x8b0
[ 71.734221][ T4993] extAlloc+0xe53/0x1010
[ 71.738501][ T4993] ? jfs_ioc_trim+0x660/0x660
[ 71.743183][ T4993] ? clear_nonspinnable+0x60/0x60
[ 71.748223][ T4993] jfs_get_block+0x41b/0xe60
[ 71.752842][ T4993] ? jfs_dirty_inode+0x240/0x240
[ 71.758068][ T4993] ? _raw_spin_unlock+0x28/0x40
[ 71.762933][ T4993] ? folio_create_buffers+0x132/0x250
[ 71.768314][ T4993] __block_write_begin_int+0x555/0x1a60
[ 71.773884][ T4993] ? jfs_dirty_inode+0x240/0x240
[ 71.778837][ T4993] ? folio_zero_new_buffers+0x540/0x540
[ 71.784392][ T4993] ? pagecache_get_page+0xeb/0x220
[ 71.789529][ T4993] ? jfs_dirty_inode+0x240/0x240
[ 71.794564][ T4993] block_write_begin+0x9c/0x1f0
[ 71.799418][ T4993] ? jfs_write_begin+0x1a/0x70
[ 71.804198][ T4993] jfs_write_begin+0x31/0x70
[ 71.808809][ T4993] generic_perform_write+0x31b/0x630
[ 71.814120][ T4993] ? generic_file_direct_write+0x3f0/0x3f0
[ 71.819941][ T4993] ? generic_write_checks_count+0x490/0x490
[ 71.825839][ T4993] ? rcu_read_lock_any_held+0xb7/0x160
[ 71.831313][ T4993] ? __generic_file_write_iter+0x101/0x230
[ 71.837138][ T4993] generic_file_write_iter+0xaf/0x310
[ 71.842527][ T4993] vfs_write+0x782/0xaf0
[ 71.846789][ T4993] ? file_end_write+0x250/0x250
[ 71.851663][ T4993] ? lockdep_hardirqs_on+0x98/0x140
[ 71.856880][ T4993] ? __fdget_pos+0x265/0x2f0
[ 71.861494][ T4993] ksys_write+0x1a0/0x2c0
[ 71.865849][ T4993] ? __ia32_sys_read+0x90/0x90
[ 71.870625][ T4993] ? syscall_enter_from_user_mode+0x32/0x230
[ 71.876624][ T4993] ? syscall_enter_from_user_mode+0x8c/0x230
[ 71.882622][ T4993] do_syscall_64+0x41/0xc0
[ 71.887051][ T4993] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 71.892950][ T4993] RIP: 0033:0x7fd240cbfd09
[ 71.897373][ T4993] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48
[ 71.917075][ T4993] RSP: 002b:00007fff276966c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 71.925502][ T4993] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd240cbfd09
[ 71.933477][ T4993] RDX: 000000006db6e559 RSI: 0000000020000240 RDI: 0000000000000004
[ 71.941451][ T4993] RBP: 00007fd240c7f310 R08: 0000000000000000 R09: 0000000000000000
[ 71.949429][ T4993] R10: 0000000000005fee R11: 0000000000000246 R12: 00007fd240c7f3a0
[ 71.957410][ T4993] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 71.965399][ T4993]
[ 71.968709][ T4993] Kernel Offset: disabled
[ 71.973115][ T4993] Rebooting in 86400 seconds..