./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor235098568 <...> Warning: Permanently added '10.128.1.114' (ED25519) to the list of known hosts. execve("./syz-executor235098568", ["./syz-executor235098568"], 0x7ffe92e86320 /* 10 vars */) = 0 brk(NULL) = 0x555556c15000 brk(0x555556c15d00) = 0x555556c15d00 arch_prctl(ARCH_SET_FS, 0x555556c15380) = 0 set_tid_address(0x555556c15650) = 294 set_robust_list(0x555556c15660, 24) = 0 rseq(0x555556c15ca0, 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-executor235098568", 4096) = 27 getrandom("\x92\x11\xcd\x99\xae\xd8\x74\x5e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556c15d00 brk(0x555556c36d00) = 0x555556c36d00 brk(0x555556c37000) = 0x555556c37000 mprotect(0x7f40c19c4000, 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 [ 20.663290][ T28] audit: type=1400 audit(1706942678.223:66): avc: denied { execmem } for pid=294 comm="syz-executor235" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 20.666398][ T28] audit: type=1400 audit(1706942678.223:67): avc: denied { bpf } for pid=295 comm="syz-executor235" capability=39 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 20.669414][ T28] audit: type=1400 audit(1706942678.223:68): avc: denied { prog_load } for pid=295 comm="syz-executor235" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 20.672025][ T28] audit: type=1400 audit(1706942678.223:69): avc: denied { perfmon } for pid=295 comm="syz-executor235" capability=38 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 20.675416][ T28] audit: type=1400 audit(1706942678.223:70): avc: denied { prog_run } for pid=295 comm="syz-executor235" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 20.678126][ T91] BUG: unable to handle page fault for address: ffffffffff600000 [ 20.679147][ T91] #PF: supervisor read access in kernel mode [ 20.679974][ T91] #PF: error_code(0x0000) - not-present page [ 20.680757][ T91] PGD 6c12067 P4D 6c12067 PUD 6c14067 PMD 6c16067 PTE 0 [ 20.681690][ T91] Oops: 0000 [#1] PREEMPT SMP KASAN [ 20.682398][ T91] CPU: 0 PID: 91 Comm: klogd Not tainted 6.1.68-syzkaller-00170-g76f0396b5761 #0 [ 20.683575][ T91] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 20.693429][ T91] RIP: 0010:strncpy_from_kernel_nofault+0x92/0x1e0 [ 20.699759][ T91] Code: d0 48 c1 e8 03 48 89 45 c0 42 0f b6 04 30 84 c0 48 89 55 c8 0f 85 eb 00 00 00 ff 02 45 31 e4 48 8b 55 d0 4c 8b 7d b8 49 89 dd <42> 8a 1c 23 4a 8d 3c 22 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 [ 20.719198][ T91] RSP: 0018:ffffc900007b79b8 EFLAGS: 00010246 [ 20.725098][ T91] RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88810e44e540 [ 20.732911][ T91] RDX: ffffc900007b7a40 RSI: ffffffffff600000 RDI: ffffffffff600000 [ 20.740722][ T91] RBP: ffffc900007b7a00 R08: ffffffff8138ca8d R09: fffff520000f6f61 [ 20.748535][ T91] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 20.756345][ T91] R13: ffffffffff600000 R14: dffffc0000000000 R15: 0000000000000005 [ 20.764156][ T91] FS: 00007fbd91120380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.772922][ T91] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.779347][ T91] CR2: ffffffffff600000 CR3: 000000010f56a000 CR4: 00000000003506b0 [ 20.787160][ T91] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.794968][ T91] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.802781][ T91] Call Trace: [ 20.806002][ T91] [ 20.808780][ T91] ? __die_body+0x62/0xb0 [ 20.812943][ T91] ? __die+0x7e/0x90 [ 20.816683][ T91] ? 0xffffffffff600000 [ 20.820674][ T91] ? page_fault_oops+0x7f9/0xa90 [ 20.825445][ T91] ? 0xffffffffff600000 [ 20.829434][ T91] ? kernelmode_fixup_or_oops+0x270/0x270 [ 20.835006][ T91] ? ptr_to_hashval+0x80/0x80 [ 20.839505][ T91] ? 0xffffffffff600000 [ 20.843495][ T91] ? exc_page_fault+0x537/0x700 [ 20.848182][ T91] ? 0xffffffffff600000 [ 20.852175][ T91] ? asm_exc_page_fault+0x27/0x30 [ 20.857035][ T91] ? 0xffffffffff600000 [ 20.861038][ T91] ? 0xffffffffff600000 [ 20.865019][ T91] ? copy_from_kernel_nofault_allowed+0x8d/0x100 [ 20.871183][ T91] ? 0xffffffffff600000 [ 20.875175][ T91] ? 0xffffffffff600000 [ 20.879168][ T91] ? strncpy_from_kernel_nofault+0x92/0x1e0 [ 20.884894][ T91] ? strncpy_from_kernel_nofault+0x41/0x1e0 [ 20.890624][ T91] ? 0xffffffffff600000 [ 20.894618][ T91] bpf_probe_read_kernel_str+0x2a/0x70 [ 20.899914][ T91] bpf_prog_ef3a4661c9d1378e+0x42/0x44 [ 20.905206][ T91] bpf_trace_run2+0x133/0x290 [ 20.909735][ T91] ? bpf_trace_run1+0x240/0x240 [ 20.914403][ T91] ? syslog_print+0x577/0x600 [ 20.918923][ T91] ? mutex_unlock+0xb2/0x260 [ 20.923344][ T91] ? syslog_print+0x577/0x600 [ 20.927858][ T91] __bpf_trace_kfree+0x6f/0x90 [ 20.932457][ T91] ? syslog_print+0x577/0x600 [ 20.936970][ T91] kfree+0xce/0xf0 [ 20.940531][ T91] syslog_print+0x577/0x600 [ 20.944872][ T91] ? do_syslog+0x7f0/0x7f0 [ 20.949127][ T91] ? avc_has_perm_noaudit+0x430/0x430 [ 20.954329][ T91] ? security_socket_sendmsg+0x82/0xb0 [ 20.959624][ T91] ? cap_capable+0x1d2/0x270 [ 20.964049][ T91] ? unix_dgram_poll+0x710/0x710 [ 20.968823][ T91] ? wake_bit_function+0x230/0x230 [ 20.973774][ T91] do_syslog+0x732/0x7f0 [ 20.977852][ T91] ? devkmsg_release+0x130/0x130 [ 20.982627][ T91] ? debug_smp_processor_id+0x17/0x20 [ 20.987833][ T91] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 20.993734][ T91] __x64_sys_syslog+0x7c/0x90 [ 20.998248][ T91] do_syscall_64+0x3d/0xb0 [ 21.002500][ T91] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 21.008236][ T91] RIP: 0033:0x7fbd91281fa7 [ 21.012486][ T91] Code: 73 01 c3 48 8b 0d 81 ce 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 67 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 51 ce 0c 00 f7 d8 64 89 01 48 [ 21.031925][ T91] RSP: 002b:00007ffcc6a1aa68 EFLAGS: 00000206 ORIG_RAX: 0000000000000067 [ 21.040169][ T91] RAX: ffffffffffffffda RBX: 00007fbd914204a0 RCX: 00007fbd91281fa7 [ 21.048327][ T91] RDX: 00000000000003ff RSI: 00007fbd914204a0 RDI: 0000000000000002 [ 21.056140][ T91] RBP: 0000000000000000 R08: 0000000000000002 R09: be13a6e5b57f9cbd [ 21.063950][ T91] R10: 0000000000004000 R11: 0000000000000206 R12: 00007fbd914204a0 [ 21.071760][ T91] R13: 00007fbd91410212 R14: 00007fbd91420573 R15: 00007fbd91420573 [ 21.079577][ T91] [ 21.082435][ T91] Modules linked in: [ 21.086171][ T91] CR2: ffffffffff600000 [ 21.090164][ T91] ---[ end trace 0000000000000000 ]--- [ 21.095458][ T91] RIP: 0010:strncpy_from_kernel_nofault+0x92/0x1e0 [ 21.101793][ T91] Code: d0 48 c1 e8 03 48 89 45 c0 42 0f b6 04 30 84 c0 48 89 55 c8 0f 85 eb 00 00 00 ff 02 45 31 e4 48 8b 55 d0 4c 8b 7d b8 49 89 dd <42> 8a 1c 23 4a 8d 3c 22 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 [ 21.121235][ T91] RSP: 0018:ffffc900007b79b8 EFLAGS: 00010246 [ 21.127135][ T91] RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88810e44e540 [ 21.134948][ T91] RDX: ffffc900007b7a40 RSI: ffffffffff600000 RDI: ffffffffff600000 [ 21.142758][ T91] RBP: ffffc900007b7a00 R08: ffffffff8138ca8d R09: fffff520000f6f61 [ 21.150572][ T91] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 21.158380][ T91] R13: ffffffffff600000 R14: dffffc0000000000 R15: 0000000000000005 [ 21.166192][ T91] FS: 00007fbd91120380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.174958][ T91] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.181384][ T91] CR2: ffffffffff600000 CR3: 000000010f56a000 CR4: 00000000003506b0 [ 21.189196][ T91] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.197005][ T91] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.204818][ T91] Kernel panic - not syncing: Fatal exception [ 21.210919][ T91] Kernel Offset: disabled [ 21.215038][ T91] Rebooting in 86400 seconds..