./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor170591789 <...> Warning: Permanently added '10.128.1.82' (ED25519) to the list of known hosts. execve("./syz-executor170591789", ["./syz-executor170591789"], 0x7ffe42914ea0 /* 10 vars */) = 0 brk(NULL) = 0x5555557dd000 brk(0x5555557dde00) = 0x5555557dde00 arch_prctl(ARCH_SET_FS, 0x5555557dd480) = 0 set_tid_address(0x5555557dd750) = 5056 set_robust_list(0x5555557dd760, 24) = 0 rseq(0x5555557ddda0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor170591789", 4096) = 27 getrandom("\xa0\x09\xfc\x45\x2d\x04\x06\xf4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555557dde00 brk(0x5555557fee00) = 0x5555557fee00 brk(0x5555557ff000) = 0x5555557ff000 mprotect(0x7fec3275c000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7fec326b5b80, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fec326bced0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7fec326b5b80, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fec326bced0}, NULL, 8) = 0 mkdir("./file0", 0777) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- mount(NULL, "./file0/../file0", "tracefs", 0, NULL) = 0 openat(AT_FDCWD, "./file0/../file0", O_RDONLY) = 3 getdents64(3, 0x20000200 /* 7 entries */, 230) = 224 [ 58.770521][ T5056] BUG: unable to handle page fault for address: fffffffffffffff0 [ 58.778278][ T5056] #PF: supervisor read access in kernel mode [ 58.784238][ T5056] #PF: error_code(0x0000) - not-present page [ 58.790491][ T5056] PGD d734067 P4D d734067 PUD d736067 PMD 0 [ 58.796474][ T5056] Oops: 0000 [#1] PREEMPT SMP KASAN [ 58.801674][ T5056] CPU: 0 PID: 5056 Comm: syz-executor170 Not tainted 6.7.0-rc7-syzkaller-00049-g453f5db0619e #0 [ 58.812065][ T5056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 58.822108][ T5056] RIP: 0010:tracefs_apply_options+0x4d0/0xa40 [ 58.828203][ T5056] Code: 24 10 49 8b 1e 48 83 c3 f0 74 3d 48 89 d8 48 c1 e8 03 48 bd 00 00 00 00 00 fc ff df 80 3c 28 00 74 08 48 89 df e8 70 ff 88 fe <48> 8b 1b 48 89 de 48 83 e6 02 31 ff e8 bf fe 2c fe 48 83 e3 02 75 [ 58.847809][ T5056] RSP: 0018:ffffc900040ffca8 EFLAGS: 00010246 [ 58.853885][ T5056] RAX: 1ffffffffffffffe RBX: fffffffffffffff0 RCX: ffff888014bf5940 [ 58.861854][ T5056] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc900040ffc20 [ 58.869907][ T5056] RBP: dffffc0000000000 R08: 0000000000000003 R09: fffff5200081ff84 [ 58.877880][ T5056] R10: dffffc0000000000 R11: fffff5200081ff84 R12: ffff88801d743888 [ 58.885869][ T5056] R13: ffff88801b0c3710 R14: ffff88801d7437e8 R15: ffff88801d743810 [ 58.893933][ T5056] FS: 00005555557dd480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 58.902964][ T5056] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.909563][ T5056] CR2: fffffffffffffff0 CR3: 000000001ec48000 CR4: 00000000003506f0 [ 58.917553][ T5056] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.925521][ T5056] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.933483][ T5056] Call Trace: [ 58.936753][ T5056] [ 58.939673][ T5056] ? __die_body+0x8b/0xe0 [ 58.943991][ T5056] ? page_fault_oops+0x802/0xaa0 [ 58.948913][ T5056] ? kernelmode_fixup_or_oops+0x2a0/0x2a0 [ 58.954613][ T5056] ? page_fault_oops+0xaa0/0xaa0 [ 58.959534][ T5056] ? mark_lock+0x9a/0x350 [ 58.963849][ T5056] ? kernelmode_fixup_or_oops+0x225/0x2a0 [ 58.969547][ T5056] ? __bad_area_nosemaphore+0x12a/0x740 [ 58.975075][ T5056] ? spurious_kernel_fault_check+0x130/0x130 [ 58.981044][ T5056] ? spurious_kernel_fault+0x11b/0x520 [ 58.986482][ T5056] ? do_kern_addr_fault+0x30/0x80 [ 58.991486][ T5056] ? exc_page_fault+0x5b0/0x870 [ 58.996328][ T5056] ? asm_exc_page_fault+0x26/0x30 [ 59.001337][ T5056] ? tracefs_apply_options+0x4d0/0xa40 [ 59.006778][ T5056] ? tracefs_apply_options+0x483/0xa40 [ 59.012218][ T5056] tracefs_remount+0x78/0x80 [ 59.016876][ T5056] reconfigure_super+0x440/0x870 [ 59.021798][ T5056] path_mount+0xc24/0xfa0 [ 59.026124][ T5056] __se_sys_mount+0x2d9/0x3c0 [ 59.030784][ T5056] ? __x64_sys_mount+0xc0/0xc0 [ 59.035701][ T5056] ? syscall_enter_from_user_mode+0xa4/0x2d0 [ 59.041749][ T5056] ? syscall_enter_from_user_mode+0xf5/0x2d0 [ 59.047757][ T5056] ? __x64_sys_mount+0x20/0xc0 [ 59.052601][ T5056] do_syscall_64+0x45/0x110 [ 59.057118][ T5056] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 59.063028][ T5056] RIP: 0033:0x7fec326e8d99 [ 59.067521][ T5056] Code: 48 83 c4 28 c3 e8 67 17 00 00 0f 1f 80 00 00 00 00 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 [ 59.087130][ T5056] RSP: 002b:00007ffc8103ddf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 59.095530][ T5056] RAX: ffffffffffffffda RBX: 00007ffc8103de00 RCX: 00007fec326e8d99 [ 59.103573][ T5056] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000000 [ 59.111635][ T5056] RBP: 00007ffc8103de08 R08: 0000000020000140 R09: 00007fec326b5b80 [ 59.119699][ T5056] R10: 0000000002200022 R11: 0000000000000246 R12: 0000000000000000 [ 59.127757][ T5056] R13: 00007ffc8103e068 R14: 0000000000000001 R15: 0000000000000001 [ 59.135732][ T5056] [ 59.138751][ T5056] Modules linked in: [ 59.142651][ T5056] CR2: fffffffffffffff0 [ 59.146790][ T5056] ---[ end trace 0000000000000000 ]--- [ 59.152231][ T5056] RIP: 0010:tracefs_apply_options+0x4d0/0xa40 [ 59.158329][ T5056] Code: 24 10 49 8b 1e 48 83 c3 f0 74 3d 48 89 d8 48 c1 e8 03 48 bd 00 00 00 00 00 fc ff df 80 3c 28 00 74 08 48 89 df e8 70 ff 88 fe <48> 8b 1b 48 89 de 48 83 e6 02 31 ff e8 bf fe 2c fe 48 83 e3 02 75 [ 59.177941][ T5056] RSP: 0018:ffffc900040ffca8 EFLAGS: 00010246 [ 59.184040][ T5056] RAX: 1ffffffffffffffe RBX: fffffffffffffff0 RCX: ffff888014bf5940 [ 59.192361][ T5056] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc900040ffc20 [ 59.200699][ T5056] RBP: dffffc0000000000 R08: 0000000000000003 R09: fffff5200081ff84 [ 59.208662][ T5056] R10: dffffc0000000000 R11: fffff5200081ff84 R12: ffff88801d743888 [ 59.216702][ T5056] R13: ffff88801b0c3710 R14: ffff88801d7437e8 R15: ffff88801d743810 [ 59.224658][ T5056] FS: 00005555557dd480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 59.233772][ T5056] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.240390][ T5056] CR2: fffffffffffffff0 CR3: 000000001ec48000 CR4: 00000000003506f0 [ 59.248633][ T5056] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.256596][ T5056] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.264563][ T5056] Kernel panic - not syncing: Fatal exception [ 59.270819][ T5056] Kernel Offset: disabled [ 59.275131][ T5056] Rebooting in 86400 seconds..