./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1965986041 <...> [ 87.113787][ T978] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.185' (ED25519) to the list of known hosts. execve("./syz-executor1965986041", ["./syz-executor1965986041"], 0x7ffd3661edb0 /* 10 vars */) = 0 brk(NULL) = 0x555565c15000 brk(0x555565c15d00) = 0x555565c15d00 arch_prctl(ARCH_SET_FS, 0x555565c15380) = 0 set_tid_address(0x555565c15650) = 5835 set_robust_list(0x555565c15660, 24) = 0 rseq(0x555565c15ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1965986041", 4096) = 28 getrandom("\x2f\x2e\x8f\x6b\x65\x10\x09\x6d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555565c15d00 brk(0x555565c36d00) = 0x555565c36d00 brk(0x555565c37000) = 0x555565c37000 mprotect(0x7fd68a5ec000, 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 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd682000000 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"..., 1048576) = 1048576 munmap(0x7fd682000000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./bus", 0777) = 0 [ 89.125722][ T5835] loop0: detected capacity change from 0 to 2048 mount("/dev/loop0", "./bus", "udf", MS_NOSUID|MS_DIRSYNC|MS_NODIRATIME|MS_STRICTATIME, "") = 0 openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 chdir("./bus") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 89.185423][ T5835] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [ 89.198434][ T5835] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 89.215362][ T5835] UDF-fs: error (device loop0): udf_verify_fi: directory (ino 1376) has entry where CRC length (63772) does not match entry length (28) [ 89.229893][ T5835] BUG: unable to handle page fault for address: ffffffffffffff8b [ 89.237593][ T5835] #PF: supervisor read access in kernel mode [ 89.243550][ T5835] #PF: error_code(0x0000) - not-present page [ 89.249504][ T5835] PGD e93c067 P4D e93c067 PUD e93e067 PMD 0 [ 89.255474][ T5835] Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI [ 89.261522][ T5835] CPU: 0 UID: 0 PID: 5835 Comm: syz-executor196 Not tainted 6.14.0-rc2-next-20250213-syzkaller #0 [ 89.272086][ T5835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 89.282141][ T5835] RIP: 0010:lookup_one_qstr_excl+0x162/0x370 [ 89.288132][ T5835] Code: d3 66 90 48 85 c0 0f 85 58 01 00 00 e8 17 dd 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 27 e1 84 [ 89.307723][ T5835] RSP: 0018:ffffc90003f2fcb8 EFLAGS: 00010246 [ 89.313779][ T5835] RAX: 0000000000000000 RBX: 0000000000380000 RCX: ffff888034c01e00 [ 89.321733][ T5835] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 89.329687][ T5835] RBP: ffff888074918164 R08: ffff88807ab8fe1b R09: 1ffff1100f571fc3 [ 89.337641][ T5835] R10: dffffc0000000000 R11: ffffed100f571fc4 R12: ffff88807ab8fd60 [ 89.345595][ T5835] R13: dffffc0000000000 R14: ffffffffffffff8b R15: 0000000000060000 [ 89.353548][ T5835] FS: 0000555565c15380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 89.362460][ T5835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.369028][ T5835] CR2: ffffffffffffff8b CR3: 00000000776ac000 CR4: 00000000003526f0 [ 89.376985][ T5835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.384943][ T5835] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.392896][ T5835] Call Trace: [ 89.396162][ T5835] [ 89.399079][ T5835] ? __die_body+0x5f/0xb0 [ 89.403398][ T5835] ? page_fault_oops+0x8e4/0xcc0 [ 89.408319][ T5835] ? filename_create+0x282/0x480 [ 89.413242][ T5835] ? do_mkdirat+0xbd/0x3a0 [ 89.417643][ T5835] ? __pfx_page_fault_oops+0x10/0x10 [ 89.422927][ T5835] ? is_prefetch+0x4ed/0x780 [ 89.427525][ T5835] ? __pfx_is_prefetch+0x10/0x10 [ 89.432464][ T5835] ? __bad_area_nosemaphore+0x118/0x770 [ 89.438011][ T5835] ? __pfx___bad_area_nosemaphore+0x10/0x10 [ 89.443895][ T5835] ? spurious_kernel_fault+0x119/0x5a0 [ 89.449346][ T5835] ? exc_page_fault+0x5c8/0x8b0 [ 89.454198][ T5835] ? asm_exc_page_fault+0x26/0x30 [ 89.459217][ T5835] ? lookup_one_qstr_excl+0x162/0x370 [ 89.464579][ T5835] ? lookup_one_qstr_excl+0x2ac/0x370 [ 89.469938][ T5835] filename_create+0x282/0x480 [ 89.474693][ T5835] ? __pfx_lock_release+0x10/0x10 [ 89.479713][ T5835] ? __pfx_filename_create+0x10/0x10 [ 89.485003][ T5835] ? __might_fault+0xaa/0x120 [ 89.489684][ T5835] do_mkdirat+0xbd/0x3a0 [ 89.493923][ T5835] ? __check_object_size+0x475/0x720 [ 89.499216][ T5835] ? __pfx_do_mkdirat+0x10/0x10 [ 89.504053][ T5835] ? strncpy_from_user+0x150/0x280 [ 89.509160][ T5835] ? getname_flags+0x1e3/0x530 [ 89.513918][ T5835] __x64_sys_mkdir+0x6c/0x80 [ 89.518496][ T5835] do_syscall_64+0xf3/0x230 [ 89.522988][ T5835] ? clear_bhb_loop+0x35/0x90 [ 89.527661][ T5835] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.533549][ T5835] RIP: 0033:0x7fd68a577a57 [ 89.537959][ T5835] 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 [ 89.557723][ T5835] RSP: 002b:00007ffc24c81108 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 89.566125][ T5835] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd68a577a57 [ 89.574081][ T5835] RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000400000000080 [ 89.582037][ T5835] RBP: 0000400000000080 R08: 0000000000000000 R09: 0000000000000000 [ 89.589994][ T5835] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 89.597950][ T5835] R13: 00007ffc24c811a0 R14: 0000000000000000 R15: 0000000000000000 [ 89.605916][ T5835] [ 89.608919][ T5835] Modules linked in: [ 89.612844][ T5835] CR2: ffffffffffffff8b [ 89.616992][ T5835] ---[ end trace 0000000000000000 ]--- [ 89.622442][ T5835] RIP: 0010:lookup_one_qstr_excl+0x162/0x370 [ 89.628425][ T5835] Code: d3 66 90 48 85 c0 0f 85 58 01 00 00 e8 17 dd 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 27 e1 84 [ 89.648024][ T5835] RSP: 0018:ffffc90003f2fcb8 EFLAGS: 00010246 [ 89.654085][ T5835] RAX: 0000000000000000 RBX: 0000000000380000 RCX: ffff888034c01e00 [ 89.662045][ T5835] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 89.670002][ T5835] RBP: ffff888074918164 R08: ffff88807ab8fe1b R09: 1ffff1100f571fc3 [ 89.677959][ T5835] R10: dffffc0000000000 R11: ffffed100f571fc4 R12: ffff88807ab8fd60 [ 89.685916][ T5835] R13: dffffc0000000000 R14: ffffffffffffff8b R15: 0000000000060000 [ 89.693873][ T5835] FS: 0000555565c15380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 89.702786][ T5835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.709351][ T5835] CR2: ffffffffffffff8b CR3: 00000000776ac000 CR4: 00000000003526f0 [ 89.717308][ T5835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.725265][ T5835] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.733230][ T5835] Kernel panic - not syncing: Fatal exception [ 89.739489][ T5835] Kernel Offset: disabled [ 89.743818][ T5835] Rebooting in 86400 seconds..