./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2905353140 <...> Warning: Permanently added '10.128.0.43' (ED25519) to the list of known hosts. execve("./syz-executor2905353140", ["./syz-executor2905353140"], 0x7fff5b3dc410 /* 10 vars */) = 0 brk(NULL) = 0x555556bae000 brk(0x555556baed00) = 0x555556baed00 arch_prctl(ARCH_SET_FS, 0x555556bae380) = 0 set_tid_address(0x555556bae650) = 294 set_robust_list(0x555556bae660, 24) = 0 rseq(0x555556baeca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2905353140", 4096) = 28 getrandom("\x1c\x6d\x7c\x97\x12\x4e\x6b\xaa", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556baed00 brk(0x555556bcfd00) = 0x555556bcfd00 brk(0x555556bd0000) = 0x555556bd0000 mprotect(0x7f7fcd9ae000, 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 write(1, "executing program\n", 18executing program ) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7fc54f9000 [ 21.325697][ T28] audit: type=1400 audit(1723885084.990:66): avc: denied { execmem } for pid=294 comm="syz-executor290" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 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"..., 20699119) = 20699119 munmap(0x7f7fc54f9000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 21.398770][ T28] audit: type=1400 audit(1723885085.070:67): avc: denied { read write } for pid=294 comm="syz-executor290" name="loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 21.399216][ T294] loop0: detected capacity change from 0 to 40427 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file2", 0777) = 0 [ 21.423004][ T28] audit: type=1400 audit(1723885085.070:68): avc: denied { open } for pid=294 comm="syz-executor290" path="/dev/loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 21.431493][ T294] ================================================================================ [ 21.457536][ T28] audit: type=1400 audit(1723885085.070:69): avc: denied { ioctl } for pid=294 comm="syz-executor290" path="/dev/loop0" dev="devtmpfs" ino=114 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 21.463490][ T294] UBSAN: shift-out-of-bounds in fs/f2fs/super.c:911:5 [ 21.488228][ T28] audit: type=1400 audit(1723885085.100:70): avc: denied { mounton } for pid=294 comm="syz-executor290" path="/root/file2" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 21.500262][ T294] shift exponent 105 is too large for 64-bit type 'unsigned long' [ 21.524154][ T294] CPU: 0 PID: 294 Comm: syz-executor290 Not tainted 6.1.90-syzkaller-00020-gd6a513a78492 #0 [ 21.533976][ T294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 21.543881][ T294] Call Trace: [ 21.546993][ T294] [ 21.549776][ T294] dump_stack_lvl+0x151/0x1b7 [ 21.554286][ T294] ? nf_tcp_handle_invalid+0x3f1/0x3f1 [ 21.559582][ T294] dump_stack+0x15/0x1c [ 21.563572][ T294] __ubsan_handle_shift_out_of_bounds+0x3e1/0x440 [ 21.569826][ T294] parse_options+0x4b90/0x4ba0 [ 21.574423][ T294] ? mount_bdev+0x282/0x3b0 [ 21.578760][ T294] ? f2fs_mount+0x34/0x40 [ 21.582930][ T294] ? default_options+0xc80/0xc80 [ 21.587709][ T294] ? kstrdup+0x54/0x70 [ 21.591609][ T294] ? memcpy+0x56/0x70 [ 21.595427][ T294] f2fs_fill_super+0x23bc/0x6dc0 [ 21.600205][ T294] ? kill_f2fs_super+0x3c0/0x3c0 [ 21.604976][ T294] ? set_blocksize+0x1cb/0x360 [ 21.609581][ T294] ? sb_set_blocksize+0xa8/0xf0 [ 21.614261][ T294] mount_bdev+0x282/0x3b0 [ 21.618425][ T294] ? kill_f2fs_super+0x3c0/0x3c0 [ 21.623201][ T294] f2fs_mount+0x34/0x40 [ 21.627208][ T294] legacy_get_tree+0xf1/0x190 [ 21.631710][ T294] ? trace_raw_output_f2fs__rw_end+0x110/0x110 [ 21.637695][ T294] vfs_get_tree+0x88/0x290 [ 21.641946][ T294] do_new_mount+0x2ba/0xb30 [ 21.646287][ T294] ? do_move_mount_old+0x160/0x160 [ 21.651235][ T294] ? security_capable+0x87/0xb0 [ 21.655922][ T294] ? ns_capable+0x89/0xe0 [ 21.660087][ T294] path_mount+0x671/0x1070 [ 21.664341][ T294] ? user_path_at_empty+0x14e/0x1a0 [ 21.669374][ T294] __se_sys_mount+0x2c4/0x3b0 [ 21.673889][ T294] ? __x64_sys_mount+0xd0/0xd0 [ 21.678489][ T294] ? fpregs_restore_userregs+0x130/0x290 [ 21.683953][ T294] __x64_sys_mount+0xbf/0xd0 [ 21.688386][ T294] x64_sys_call+0x49d/0x9a0 [ 21.692720][ T294] do_syscall_64+0x3b/0xb0 [ 21.696973][ T294] ? clear_bhb_loop+0x55/0xb0 [ 21.701490][ T294] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 21.707225][ T294] RIP: 0033:0x7f7fcd937cfa [ 21.711470][ T294] 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 [ 21.730913][ T294] RSP: 002b:00007fff8eff0578 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 21.739154][ T294] RAX: ffffffffffffffda RBX: 00007fff8eff0590 RCX: 00007f7fcd937cfa mount("/dev/loop0", "./file2", "f2fs", 0, "nouser_xattr,active_logs=4,active_logs=4,noquota,noflush_merge,io_bits=00000000000000000151,prjjquot"...) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 21.746966][ T294] RDX: 0000000020000040 RSI: 00000000200000c0 RDI: 00007fff8eff0590 [ 21.754778][ T294] RBP: 0000000000000004 R08: 00007fff8eff05d0 R09: 00000000000054fa [ 21.762591][ T294] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 [ 21.770401][ T294] R13: 00007fff8eff05d0 R14: 0000000000000003 R15: 00000000013bd7ef [ 21.778216][ T294] [ 21.781189][ T294] ================================================================================ [ 21.790354][ T294] F2FS-fs (loop0): Not support 2199023255552, larger than 256 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 exit_group(0) = ? +++ exited with 0 +++