./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor252314781 <...> Warning: Permanently added '10.128.1.144' (ED25519) to the list of known hosts. execve("./syz-executor252314781", ["./syz-executor252314781"], 0x7fff23d32d90 /* 10 vars */) = 0 brk(NULL) = 0x55558992e000 brk(0x55558992ed00) = 0x55558992ed00 arch_prctl(ARCH_SET_FS, 0x55558992e380) = 0 set_tid_address(0x55558992e650) = 5825 set_robust_list(0x55558992e660, 24) = 0 rseq(0x55558992eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor252314781", 4096) = 27 getrandom("\xb8\x74\x2e\x82\xe3\x1c\xf7\x88", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558992ed00 brk(0x55558994fd00) = 0x55558994fd00 brk(0x555589950000) = 0x555589950000 mprotect(0x7fa3afc5d000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558992e650) = 5826 ./strace-static-x86_64: Process 5826 attached [pid 5826] set_robust_list(0x55558992e660, 24) = 0 [pid 5826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5826] setpgid(0, 0) = 0 [pid 5826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5826] write(3, "1000", 4) = 4 [pid 5826] close(3) = 0 [pid 5826] write(1, "executing program\n", 18executing program ) = 18 [pid 5826] openat(AT_FDCWD, "/proc/self/task", O_RDWR) = -1 EISDIR (Is a directory) [pid 5826] openat(AT_FDCWD, "/proc/self/task", O_RDONLY) = 3 [pid 5826] fchdir(3) = 0 [pid 5826] mount(NULL, ".", "proc", MS_RDONLY|MS_NODIRATIME, NULL) = 0 [pid 5826] clone(child_stack=0x30, flags=0./strace-static-x86_64: Process 5827 attached [pid 5827] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x30} --- [pid 5826] <... clone resumed>) = 5827 [pid 5826] openat(AT_FDCWD, "/proc/self/task/5827/pagemap", O_RDWR [pid 5827] +++ killed by SIGSEGV +++ [pid 5826] <... openat resumed>) = -1 EROFS (Read-only file system) [pid 5826] openat(AT_FDCWD, "/proc/self/task/5827/pagemap", O_RDONLY) = 4 [ 67.527088][ T5826] Oops: general protection fault, probably for non-canonical address 0xdffffc000000003c: 0000 [#1] PREEMPT SMP KASAN PTI [ 67.539714][ T5826] KASAN: null-ptr-deref in range [0x00000000000001e0-0x00000000000001e7] [ 67.548151][ T5826] CPU: 0 UID: 0 PID: 5826 Comm: syz-executor252 Not tainted 6.14.0-rc6-syzkaller #0 [ 67.557591][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 67.567745][ T5826] RIP: 0010:__lock_acquire+0x6a/0x2100 [ 67.573228][ T5826] Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d 6b 27 9f 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 98 c4 89 00 48 be 00 00 00 00 00 fc [ 67.592922][ T5826] RSP: 0018:ffffc90003eb7850 EFLAGS: 00010006 [ 67.598983][ T5826] RAX: 000000000000003c RBX: 0000000000000001 RCX: 0000000000000001 [ 67.606941][ T5826] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000001e0 [ 67.614899][ T5826] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 67.622865][ T5826] R10: dffffc0000000000 R11: fffffbfff20779af R12: ffff8880343d8000 [ 67.630827][ T5826] R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000001e0 [ 67.638791][ T5826] FS: 000055558992e380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 67.647711][ T5826] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.654285][ T5826] CR2: 00007ffc25d8ac68 CR3: 000000007ca94000 CR4: 00000000003526f0 [ 67.662255][ T5826] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.670212][ T5826] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.678169][ T5826] Call Trace: [ 67.681437][ T5826] [ 67.684353][ T5826] ? __die_body+0x5f/0xb0 [ 67.688689][ T5826] ? die_addr+0xb0/0xe0 [ 67.692852][ T5826] ? exc_general_protection+0x3dd/0x5d0 [ 67.698403][ T5826] ? asm_exc_general_protection+0x26/0x30 [ 67.704120][ T5826] ? __lock_acquire+0x6a/0x2100 [ 67.708963][ T5826] ? __pfx_stack_trace_save+0x10/0x10 [ 67.714326][ T5826] ? stack_depot_save_flags+0x37/0x940 [ 67.719807][ T5826] lock_acquire+0x1ed/0x550 [ 67.724307][ T5826] ? do_pagemap_cmd+0x82e/0x1240 [ 67.729239][ T5826] ? __pfx_lock_acquire+0x10/0x10 [ 67.734285][ T5826] ? __pfx___might_resched+0x10/0x10 [ 67.739565][ T5826] down_read_killable+0xca/0xd30 [ 67.744518][ T5826] ? do_pagemap_cmd+0x82e/0x1240 [ 67.749466][ T5826] ? __pfx___might_resched+0x10/0x10 [ 67.754740][ T5826] ? do_pagemap_cmd+0x82e/0x1240 [ 67.759666][ T5826] ? __might_fault+0xaa/0x120 [ 67.764332][ T5826] ? __pfx_down_read_killable+0x10/0x10 [ 67.769863][ T5826] ? tomoyo_path_number_perm+0x5dd/0x770 [ 67.775512][ T5826] ? __might_fault+0xaa/0x120 [ 67.780185][ T5826] do_pagemap_cmd+0x82e/0x1240 [ 67.784953][ T5826] ? __pfx_do_pagemap_cmd+0x10/0x10 [ 67.790143][ T5826] ? __pfx_ptrace_notify+0x10/0x10 [ 67.795240][ T5826] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 67.801555][ T5826] ? __pfx_do_pagemap_cmd+0x10/0x10 [ 67.806767][ T5826] __se_sys_ioctl+0xf5/0x170 [ 67.811349][ T5826] do_syscall_64+0xf3/0x230 [ 67.815889][ T5826] ? clear_bhb_loop+0x35/0x90 [ 67.820642][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 67.826547][ T5826] RIP: 0033:0x7fa3afbe9c39 [ 67.830957][ T5826] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 67.850557][ T5826] RSP: 002b:00007ffc25d8ac68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 67.858965][ T5826] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa3afbe9c39 [ 67.866943][ T5826] RDX: 0000400000000100 RSI: 00000000c0606610 RDI: 0000000000000004 [ 67.874905][ T5826] RBP: 00007fa3afc5d5f0 R08: 00007ffc25d8a914 R09: 0000000000000006 [ 67.882864][ T5826] R10: 0000000000000014 R11: 0000000000000246 R12: 0000000000000001 [ 67.890835][ T5826] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 67.898821][ T5826] [ 67.901845][ T5826] Modules linked in: [ 67.905741][ T5826] ---[ end trace 0000000000000000 ]--- [ 67.911181][ T5826] RIP: 0010:__lock_acquire+0x6a/0x2100 [ 67.916649][ T5826] Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d 6b 27 9f 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 98 c4 89 00 48 be 00 00 00 00 00 fc [ 67.936257][ T5826] RSP: 0018:ffffc90003eb7850 EFLAGS: 00010006 [ 67.942316][ T5826] RAX: 000000000000003c RBX: 0000000000000001 RCX: 0000000000000001 [ 67.950275][ T5826] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000001e0 [ 67.958235][ T5826] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 67.966204][ T5826] R10: dffffc0000000000 R11: fffffbfff20779af R12: ffff8880343d8000 [ 67.974175][ T5826] R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000001e0 [ 67.982141][ T5826] FS: 000055558992e380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 67.991069][ T5826] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.997649][ T5826] CR2: 00007ffc25d8ac68 CR3: 000000007ca94000 CR4: 00000000003526f0 [ 68.005612][ T5826] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.013598][ T5826] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.021578][ T5826] Kernel panic - not syncing: Fatal exception [ 68.027887][ T5826] Kernel Offset: disabled [ 68.032202][ T5826] Rebooting in 86400 seconds..