./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor725264728 <...> Warning: Permanently added '10.128.0.164' (ED25519) to the list of known hosts. execve("./syz-executor725264728", ["./syz-executor725264728"], 0x7ffefbc092b0 /* 10 vars */) = 0 brk(NULL) = 0x55557a0a9000 brk(0x55557a0a9d00) = 0x55557a0a9d00 arch_prctl(ARCH_SET_FS, 0x55557a0a9380) = 0 set_tid_address(0x55557a0a9650) = 5832 set_robust_list(0x55557a0a9660, 24) = 0 rseq(0x55557a0a9ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor725264728", 4096) = 27 getrandom("\xe5\xff\x6c\x52\x26\x10\xa8\x07", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557a0a9d00 brk(0x55557a0cad00) = 0x55557a0cad00 brk(0x55557a0cb000) = 0x55557a0cb000 mprotect(0x7f8f425bc000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 write(1, "executing program\n", 18executing program ) = 18 openat(AT_FDCWD, "/proc/self/task", O_RDWR) = -1 EISDIR (Is a directory) openat(AT_FDCWD, "/proc/self/task", O_RDONLY) = 3 fchdir(3) = 0 memfd_create("syzkaller", 0) = 4 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8f3a000000 write(4, "\x60\x1c\x6d\x6b\x64\x20\x00\x66\x81\x7c\xe1\x00\x08\x08\x01\x00\x02\x40\x00\x40\x00\xf8\x01\x00\x10\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x90\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 131072) = 131072 munmap(0x7f8f3a000000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 ioctl(5, LOOP_SET_FD, 4) = 0 close(4) = 0 close(5) = 0 [ 102.272566][ T5832] loop0: detected capacity change from 0 to 256 [ 102.293114][ T5832] BUG: unable to handle page fault for address: fffffffffffffffe [ 102.301242][ T5832] #PF: supervisor read access in kernel mode [ 102.307307][ T5832] #PF: error_code(0x0000) - not-present page [ 102.313290][ T5832] PGD e93c067 P4D e93c067 PUD e93e067 PMD 0 [ 102.319408][ T5832] Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI [ 102.325687][ T5832] CPU: 0 UID: 0 PID: 5832 Comm: syz-executor725 Not tainted 6.14.0-rc3-next-20250218-syzkaller #0 [ 102.336472][ T5832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 102.347705][ T5832] RIP: 0010:lookup_one_qstr_excl+0x162/0x370 [ 102.354733][ T5832] Code: d3 66 90 48 85 c0 0f 85 58 01 00 00 e8 07 0f 84 ff 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 57 01 00 00 bb 00 00 38 00 <41> 23 1e 44 89 fd 81 e5 00 00 02 00 89 de 09 ee 31 ff e8 17 13 84 [ 102.376813][ T5832] RSP: 0018:ffffc9000415fcb8 EFLAGS: 00010246 [ 102.383103][ T5832] RAX: 0000000000000000 RBX: 0000000000380000 RCX: ffff888033b80000 [ 102.393528][ T5832] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 102.402978][ T5832] RBP: ffff88807bc6e034 R08: ffff88807d870f6b R09: 1ffff1100fb0e1ed [ 102.412445][ T5832] R10: dffffc0000000000 R11: ffffed100fb0e1ee R12: ffff88807d870eb0 [ 102.420915][ T5832] R13: dffffc0000000000 R14: fffffffffffffffe R15: 0000000000060000 [ 102.429443][ T5832] FS: 000055557a0a9380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 102.438979][ T5832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 102.446381][ T5832] CR2: fffffffffffffffe CR3: 0000000077f38000 CR4: 00000000003526f0 [ 102.454543][ T5832] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 102.463288][ T5832] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 102.472456][ T5832] Call Trace: [ 102.475846][ T5832] [ 102.479054][ T5832] ? __die_body+0x5f/0xb0 [ 102.484186][ T5832] ? page_fault_oops+0x8e4/0xcc0 [ 102.490019][ T5832] ? filename_create+0x282/0x480 [ 102.495208][ T5832] ? do_mkdirat+0xbd/0x3a0 [ 102.499844][ T5832] ? __pfx_page_fault_oops+0x10/0x10 [ 102.505253][ T5832] ? is_prefetch+0x4ed/0x780 [ 102.510095][ T5832] ? __pfx_is_prefetch+0x10/0x10 [ 102.515556][ T5832] ? __bad_area_nosemaphore+0x118/0x770 [ 102.521664][ T5832] ? __pfx___bad_area_nosemaphore+0x10/0x10 [ 102.528195][ T5832] ? spurious_kernel_fault+0x119/0x5a0 [ 102.534109][ T5832] ? do_kern_addr_fault+0x30/0x80 [ 102.539337][ T5832] ? exc_page_fault+0x627/0x920 [ 102.544509][ T5832] ? asm_exc_page_fault+0x26/0x30 [ 102.551092][ T5832] ? lookup_one_qstr_excl+0x162/0x370 [ 102.557527][ T5832] ? lookup_one_qstr_excl+0x2ac/0x370 [ 102.563034][ T5832] filename_create+0x282/0x480 [ 102.568090][ T5832] ? __pfx_lock_release+0x10/0x10 [ 102.573594][ T5832] ? __pfx_filename_create+0x10/0x10 [ 102.579342][ T5832] ? __might_fault+0xaa/0x120 [ 102.584373][ T5832] do_mkdirat+0xbd/0x3a0 [ 102.590122][ T5832] ? __check_object_size+0x475/0x720 [ 102.596615][ T5832] ? __pfx_do_mkdirat+0x10/0x10 [ 102.601956][ T5832] ? strncpy_from_user+0x150/0x280 [ 102.609051][ T5832] ? getname_flags+0x1e3/0x530 [ 102.617091][ T5832] __x64_sys_mkdir+0x6c/0x80 [ 102.623509][ T5832] do_syscall_64+0xf3/0x230 [ 102.632094][ T5832] ? clear_bhb_loop+0x45/0xa0 [ 102.638608][ T5832] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 102.646394][ T5832] RIP: 0033:0x7f8f42548797 [ 102.652033][ T5832] Code: ff ff 77 07 31 c0 c3 0f 1f 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 b8 53 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 [ 102.674394][ T5832] RSP: 002b:00007ffc8d3ed6e8 EFLAGS: 00000207 ORIG_RAX: 0000000000000053 [ 102.684692][ T5832] RAX: ffffffffffffffda RBX: 00007ffc8d3ed700 RCX: 00007f8f42548797 [ 102.693492][ T5832] RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000400000000e80 [ 102.701851][ T5832] RBP: 0000400000000e80 R08: 00007f8f3a000000 R09: 00000000000002a7 [ 102.711537][ T5832] R10: 0000000000000000 R11: 0000000000000207 R12: 00004000000001c0 [ 102.720061][ T5832] R13: 00007ffc8d3ed740 R14: 0000000000000004 R15: 0000000000010082 [ 102.728800][ T5832] [ 102.732312][ T5832] Modules linked in: [ 102.736622][ T5832] CR2: fffffffffffffffe [ 102.741227][ T5832] ---[ end trace 0000000000000000 ]--- [ 102.746954][ T5832] RIP: 0010:lookup_one_qstr_excl+0x162/0x370 [ 102.753566][ T5832] Code: d3 66 90 48 85 c0 0f 85 58 01 00 00 e8 07 0f 84 ff 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 57 01 00 00 bb 00 00 38 00 <41> 23 1e 44 89 fd 81 e5 00 00 02 00 89 de 09 ee 31 ff e8 17 13 84 [ 102.774212][ T5832] RSP: 0018:ffffc9000415fcb8 EFLAGS: 00010246 [ 102.780293][ T5832] RAX: 0000000000000000 RBX: 0000000000380000 RCX: ffff888033b80000 [ 102.788475][ T5832] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 102.796640][ T5832] RBP: ffff88807bc6e034 R08: ffff88807d870f6b R09: 1ffff1100fb0e1ed [ 102.804663][ T5832] R10: dffffc0000000000 R11: ffffed100fb0e1ee R12: ffff88807d870eb0 [ 102.812720][ T5832] R13: dffffc0000000000 R14: fffffffffffffffe R15: 0000000000060000 [ 102.820965][ T5832] FS: 000055557a0a9380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 102.829899][ T5832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 102.836651][ T5832] CR2: fffffffffffffffe CR3: 0000000077f38000 CR4: 00000000003526f0 [ 102.845065][ T5832] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 102.853924][ T5832] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 102.862562][ T5832] Kernel panic - not syncing: Fatal exception [ 102.869173][ T5832] Kernel Offset: disabled [ 102.873759][ T5832] Rebooting in 86400 seconds..