./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor23012224 <...> Warning: Permanently added '10.128.0.79' (ECDSA) to the list of known hosts. execve("./syz-executor23012224", ["./syz-executor23012224"], 0x7ffd80269dd0 /* 10 vars */) = 0 brk(NULL) = 0x5555569e0000 brk(0x5555569e0c40) = 0x5555569e0c40 arch_prctl(ARCH_SET_FS, 0x5555569e0300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor23012224", 4096) = 26 brk(0x555556a01c40) = 0x555556a01c40 brk(0x555556a02000) = 0x555556a02000 mprotect(0x7f2c854d5000, 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 syzkaller login: [ 49.713883][ T3613] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 49.725622][ T3613] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 49.734022][ T3613] CPU: 1 PID: 3613 Comm: syz-executor230 Not tainted 5.19.0-rc6-syzkaller-01454-ge22c88799f26 #0 [ 49.744506][ T3613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 49.754544][ T3613] RIP: 0010:check_helper_call+0x4299/0x9100 [ 49.760429][ T3613] Code: 48 c1 ea 03 80 3c 02 00 0f 85 9f 4b 00 00 48 8b 9b 00 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 08 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 8f [ 49.780994][ T3613] RSP: 0018:ffffc90002fff410 EFLAGS: 00010202 [ 49.787076][ T3613] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 49.795070][ T3613] RDX: 0000000000000001 RSI: ffffffff818d2238 RDI: 0000000000000008 [ 49.803089][ T3613] RBP: ffffc90002fff610 R08: 0000000000000005 R09: 000000000000002b [ 49.811075][ T3613] R10: 000000000000002b R11: 0000000000000001 R12: 000000000000002b [ 49.819058][ T3613] R13: ffffc90000ade070 R14: ffff888017347000 R15: 0000000000000070 [ 49.827046][ T3613] FS: 00005555569e0300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 49.835982][ T3613] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.842566][ T3613] CR2: 00007f33d8312a70 CR3: 000000001cbc0000 CR4: 00000000003506e0 [ 49.850536][ T3613] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.858504][ T3613] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.866486][ T3613] Call Trace: [ 49.869757][ T3613] [ 49.872684][ T3613] ? do_syscall_64+0x35/0xb0 [ 49.877285][ T3613] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 49.883353][ T3613] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 49.889161][ T3613] ? check_func_arg_reg_off+0x210/0x210 [ 49.894729][ T3613] ? mark_reg_unknown+0x3e/0xc0 [ 49.899576][ T3613] do_check_common+0x612a/0xd2c0 [ 49.904515][ T3613] ? lockdep_hardirqs_on+0x79/0x100 [ 49.909807][ T3613] ? kasan_quarantine_put+0xf5/0x210 [ 49.915092][ T3613] ? lockdep_hardirqs_on+0x79/0x100 [ 49.920289][ T3613] ? check_helper_call+0x9100/0x9100 [ 49.925570][ T3613] ? push_insn+0x220/0x530 [ 49.929997][ T3613] ? kvfree+0x42/0x50 [ 49.933981][ T3613] ? check_cfg+0x670/0xb40 [ 49.938396][ T3613] bpf_check+0x72eb/0xb040 [ 49.942813][ T3613] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 49.948795][ T3613] ? bpf_get_btf_vmlinux+0x10/0x10 [ 49.953929][ T3613] ? lock_downgrade+0x6e0/0x6e0 [ 49.958779][ T3613] ? __might_fault+0xd1/0x170 [ 49.963454][ T3613] ? lock_downgrade+0x6e0/0x6e0 [ 49.968300][ T3613] ? ktime_get_with_offset+0x3f2/0x500 [ 49.973759][ T3613] ? memset+0x20/0x40 [ 49.977740][ T3613] ? bpf_obj_name_cpy+0x144/0x1a0 [ 49.982768][ T3613] bpf_prog_load+0xfb2/0x2250 [ 49.987452][ T3613] ? __bpf_prog_put.constprop.0+0x220/0x220 [ 49.993345][ T3613] ? find_held_lock+0x2d/0x110 [ 49.998109][ T3613] ? __might_fault+0xd1/0x170 [ 50.002784][ T3613] ? lock_downgrade+0x6e0/0x6e0 [ 50.007635][ T3613] ? bpf_lsm_bpf+0x5/0x10 [ 50.011968][ T3613] __sys_bpf+0x11a1/0x5790 [ 50.016413][ T3613] ? lock_release+0x780/0x780 [ 50.021106][ T3613] ? ptrace_stop.part.0+0x510/0xa80 [ 50.026308][ T3613] ? bpf_perf_link_attach+0x520/0x520 [ 50.031680][ T3613] ? do_raw_spin_lock+0x120/0x2a0 [ 50.036704][ T3613] ? rwlock_bug.part.0+0x90/0x90 [ 50.041633][ T3613] ? _raw_spin_lock_irq+0x41/0x50 [ 50.046662][ T3613] ? find_held_lock+0x2d/0x110 [ 50.051428][ T3613] ? _raw_spin_unlock_irq+0x1f/0x40 [ 50.056624][ T3613] ? _raw_spin_unlock_irq+0x1f/0x40 [ 50.061818][ T3613] ? lockdep_hardirqs_on+0x79/0x100 [ 50.067017][ T3613] __x64_sys_bpf+0x75/0xb0 [ 50.071429][ T3613] do_syscall_64+0x35/0xb0 [ 50.075850][ T3613] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 50.082478][ T3613] RIP: 0033:0x7f2c85468c59 [ 50.086920][ T3613] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 50.106550][ T3613] RSP: 002b:00007fff18bcdb58 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 50.114980][ T3613] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2c85468c59 [ 50.122958][ T3613] RDX: 0000000000000080 RSI: 0000000020000780 RDI: 0000000000000005 [ 50.130944][ T3613] RBP: 00007f2c8542ce00 R08: 0000000000000000 R09: 0000000000000000 [ 50.138935][ T3613] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007f2c8542ce90 [ 50.146923][ T3613] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 50.154999][ T3613] [ 50.158017][ T3613] Modules linked in: [ 50.162159][ T3613] ---[ end trace 0000000000000000 ]--- [ 50.167745][ T3613] RIP: 0010:check_helper_call+0x4299/0x9100 [ 50.173733][ T3613] Code: 48 c1 ea 03 80 3c 02 00 0f 85 9f 4b 00 00 48 8b 9b 00 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 08 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 8f [ 50.193367][ T3613] RSP: 0018:ffffc90002fff410 EFLAGS: 00010202 [ 50.199452][ T3613] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 50.207410][ T3613] RDX: 0000000000000001 RSI: ffffffff818d2238 RDI: 0000000000000008 [ 50.215407][ T3613] RBP: ffffc90002fff610 R08: 0000000000000005 R09: 000000000000002b [ 50.223399][ T3613] R10: 000000000000002b R11: 0000000000000001 R12: 000000000000002b [ 50.231393][ T3613] R13: ffffc90000ade070 R14: ffff888017347000 R15: 0000000000000070 [ 50.239387][ T3613] FS: 00005555569e0300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 50.248337][ T3613] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.254933][ T3613] CR2: 00000000005f6b40 CR3: 000000001cbc0000 CR4: 00000000003506f0 [ 50.262957][ T3613] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.271095][ T3613] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.279130][ T3613] Kernel panic - not syncing: Fatal exception [ 50.285341][ T3613] Kernel Offset: disabled [ 50.289658][ T3613] Rebooting in 86400 seconds..