./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3635302457 <...> Warning: Permanently added '10.128.0.116' (ED25519) to the list of known hosts. execve("./syz-executor3635302457", ["./syz-executor3635302457"], 0x7ffcd0015f10 /* 10 vars */) = 0 brk(NULL) = 0x555555564000 brk(0x555555564d00) = 0x555555564d00 arch_prctl(ARCH_SET_FS, 0x555555564380) = 0 set_tid_address(0x555555564650) = 293 set_robust_list(0x555555564660, 24) = 0 rseq(0x555555564ca0, 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-executor3635302457", 4096) = 28 getrandom("\x49\xea\xd1\xfc\x7c\x8d\x78\x84", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555564d00 brk(0x555555585d00) = 0x555555585d00 brk(0x555555586000) = 0x555555586000 mprotect(0x7f3158028000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 [ 20.256805][ T28] audit: type=1400 audit(1707992511.774:66): avc: denied { execmem } for pid=293 comm="syz-executor363" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 20.259626][ T28] audit: type=1400 audit(1707992511.774:67): avc: denied { bpf } for pid=294 comm="syz-executor363" capability=39 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 20.262520][ T28] audit: type=1400 audit(1707992511.774:68): avc: denied { prog_load } for pid=294 comm="syz-executor363" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 20.265068][ T28] audit: type=1400 audit(1707992511.774:69): avc: denied { perfmon } for pid=294 comm="syz-executor363" capability=38 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 20.268109][ T83] BUG: unable to handle page fault for address: ffffffffff600000 [ 20.269175][ T83] #PF: supervisor read access in kernel mode [ 20.270088][ T83] #PF: error_code(0x0000) - not-present page [ 20.270891][ T83] PGD 6c12067 P4D 6c12067 PUD 6c14067 PMD 6c16067 PTE 0 [ 20.271846][ T83] Oops: 0000 [#1] PREEMPT SMP KASAN [ 20.272565][ T83] CPU: 0 PID: 83 Comm: syslogd Not tainted 6.1.68-syzkaller-00023-g92432f07d663 #0 [ 20.273884][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 20.275286][ T83] RIP: 0010:strncpy_from_kernel_nofault+0x92/0x1e0 [ 20.276209][ T83] 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 [ 20.288221][ T83] RSP: 0018:ffffc90000937698 EFLAGS: 00010246 [ 20.294131][ T83] RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88810bd63cc0 [ 20.301933][ T83] RDX: ffffc90000937720 RSI: ffffffffff600000 RDI: ffffffffff600000 [ 20.309744][ T83] RBP: ffffc900009376e0 R08: ffffffff8138ca8d R09: ffffed1021b47223 [ 20.317557][ T83] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 20.325366][ T83] R13: ffffffffff600000 R14: dffffc0000000000 R15: 0000000000000005 [ 20.333180][ T83] FS: 00007f15bdbf4380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.341946][ T83] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.348365][ T83] CR2: ffffffffff600000 CR3: 000000010f2e7000 CR4: 00000000003506b0 [ 20.356180][ T83] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.363992][ T83] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.371806][ T83] Call Trace: [ 20.374929][ T83] [ 20.377707][ T83] ? __die_body+0x62/0xb0 [ 20.381868][ T83] ? __die+0x7e/0x90 [ 20.385602][ T83] ? 0xffffffffff600000 [ 20.389594][ T83] ? page_fault_oops+0x7f9/0xa90 [ 20.394391][ T83] ? __kasan_check_write+0x14/0x20 [ 20.399317][ T83] ? 0xffffffffff600000 [ 20.403310][ T83] ? kernelmode_fixup_or_oops+0x270/0x270 [ 20.408864][ T83] ? compat_start_thread+0x20/0x20 [ 20.413811][ T83] ? __sched_clock_gtod_offset+0x100/0x100 [ 20.419470][ T83] ? native_set_ldt+0x130/0x130 [ 20.424153][ T83] ? __kasan_check_write+0x14/0x20 [ 20.429088][ T83] ? 0xffffffffff600000 [ 20.433077][ T83] ? exc_page_fault+0x537/0x700 [ 20.437774][ T83] ? 0xffffffffff600000 [ 20.441762][ T83] ? asm_exc_page_fault+0x27/0x30 [ 20.446630][ T83] ? 0xffffffffff600000 [ 20.450612][ T83] ? 0xffffffffff600000 [ 20.454609][ T83] ? copy_from_kernel_nofault_allowed+0x8d/0x100 [ 20.460783][ T83] ? 0xffffffffff600000 [ 20.464756][ T83] ? 0xffffffffff600000 [ 20.468751][ T83] ? strncpy_from_kernel_nofault+0x92/0x1e0 [ 20.474477][ T83] ? strncpy_from_kernel_nofault+0x41/0x1e0 [ 20.480207][ T83] ? 0xffffffffff600000 [ 20.484201][ T83] bpf_probe_read_kernel_str+0x2a/0x70 [ 20.489505][ T83] bpf_prog_ef3a4661c9d1378e+0x42/0x44 [ 20.494807][ T83] bpf_trace_run2+0x133/0x290 [ 20.499305][ T83] ? __kasan_check_write+0x14/0x20 [ 20.504249][ T83] ? bpf_trace_run1+0x240/0x240 [ 20.508945][ T83] ? skb_release_data+0x616/0x840 [ 20.513796][ T83] ? unix_destruct_scm+0x2e5/0x350 [ 20.518746][ T83] ? skb_release_data+0x616/0x840 [ 20.523610][ T83] __bpf_trace_kfree+0x6f/0x90 [ 20.528208][ T83] ? skb_release_data+0x616/0x840 [ 20.533064][ T83] kfree+0xce/0xf0 [ 20.536622][ T83] skb_release_data+0x616/0x840 [ 20.541311][ T83] consume_skb+0xac/0x250 [ 20.545476][ T83] skb_free_datagram+0x15/0x20 [ 20.550086][ T83] __unix_dgram_recvmsg+0xcce/0x12b0 [ 20.555204][ T83] ? unix_unhash+0x10/0x10 [ 20.559456][ T83] ? avc_has_perm+0x16f/0x260 [ 20.563972][ T83] ? generic_perform_write+0x520/0x5c0 [ 20.569259][ T83] unix_dgram_recvmsg+0xb7/0xd0 [ 20.573946][ T83] ? unix_dgram_sendmsg+0x2050/0x2050 [ 20.579154][ T83] sock_read_iter+0x3b2/0x4b0 [ 20.583666][ T83] ? kernel_sock_ip_overhead+0x280/0x280 [ 20.589142][ T83] ? __kasan_check_read+0x11/0x20 [ 20.593994][ T83] ? fsnotify_perm+0x470/0x5d0 [ 20.598594][ T83] vfs_read+0x771/0xad0 [ 20.602588][ T83] ? kernel_read+0x1f0/0x1f0 [ 20.607016][ T83] ? __kasan_check_read+0x11/0x20 [ 20.611873][ T83] ? __fdget_pos+0x204/0x390 [ 20.616301][ T83] ksys_read+0x199/0x2c0 [ 20.620380][ T83] ? vfs_write+0xeb0/0xeb0 [ 20.624632][ T83] ? debug_smp_processor_id+0x17/0x20 [ 20.629838][ T83] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 20.635741][ T83] __x64_sys_read+0x7b/0x90 [ 20.640080][ T83] do_syscall_64+0x3d/0xb0 [ 20.644334][ T83] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 20.650148][ T83] RIP: 0033:0x7f15bdd48b6a [ 20.654404][ T83] Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83 [ 20.673842][ T83] RSP: 002b:00007ffddfb60038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 20.682174][ T83] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f15bdd48b6a [ 20.689986][ T83] RDX: 00000000000000ff RSI: 000055eb45859300 RDI: 0000000000000000 [ 20.697797][ T83] RBP: 000055eb458592c0 R08: 0000000000000001 R09: 0000000000000000 [ 20.705608][ T83] R10: 00007f15bdee73a3 R11: 0000000000000246 R12: 000055eb45859357 [ 20.713426][ T83] R13: 000055eb45859300 R14: 0000000000000000 R15: 00007f15bdf25a80 [ 20.721236][ T83] [ 20.724098][ T83] Modules linked in: [ 20.727842][ T83] CR2: ffffffffff600000 [ 20.731824][ T83] ---[ end trace 0000000000000000 ]--- [ 20.737375][ T83] RIP: 0010:strncpy_from_kernel_nofault+0x92/0x1e0 [ 20.743712][ T83] 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 [ 20.763156][ T83] RSP: 0018:ffffc90000937698 EFLAGS: 00010246 [ 20.769061][ T83] RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88810bd63cc0 [ 20.776867][ T83] RDX: ffffc90000937720 RSI: ffffffffff600000 RDI: ffffffffff600000 [ 20.784678][ T83] RBP: ffffc900009376e0 R08: ffffffff8138ca8d R09: ffffed1021b47223 [ 20.792490][ T83] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 20.800301][ T83] R13: ffffffffff600000 R14: dffffc0000000000 R15: 0000000000000005 [ 20.808113][ T83] FS: 00007f15bdbf4380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.816879][ T83] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.823303][ T83] CR2: ffffffffff600000 CR3: 000000010f2e7000 CR4: 00000000003506b0 [ 20.831114][ T83] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.838926][ T83] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.846738][ T83] Kernel panic - not syncing: Fatal exception [ 20.852874][ T83] Kernel Offset: disabled [ 20.856997][ T83] Rebooting in 86400 seconds..