./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3199962634 <...> DUID 00:04:60:0b:d9:94:f1:4e:15:d4:cc:23:27:00:18:99:58:ba forked to background, child pid 3184 [ 26.435001][ T3185] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.445351][ T3185] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.84' (ECDSA) to the list of known hosts. execve("./syz-executor3199962634", ["./syz-executor3199962634"], 0x7fffe2571f60 /* 10 vars */) = 0 brk(NULL) = 0x555555af8000 brk(0x555555af8c40) = 0x555555af8c40 arch_prctl(ARCH_SET_FS, 0x555555af8300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3199962634", 4096) = 28 brk(0x555555b19c40) = 0x555555b19c40 brk(0x555555b1a000) = 0x555555b1a000 mprotect(0x7f1d0a366000, 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: [ 49.195234][ T3606] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 49.206965][ T3606] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 49.215360][ T3606] CPU: 1 PID: 3606 Comm: syz-executor319 Not tainted 5.19.0-rc6-syzkaller-01413-g459f326e995c #0 [ 49.225930][ T3606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 49.235972][ T3606] RIP: 0010:check_helper_call+0x4299/0x9100 [ 49.241869][ T3606] 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 [ 49.261473][ T3606] RSP: 0018:ffffc90002eff410 EFLAGS: 00010202 [ 49.267555][ T3606] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 49.275521][ T3606] RDX: 0000000000000001 RSI: ffffffff818d2238 RDI: 0000000000000008 [ 49.283485][ T3606] RBP: ffffc90002eff610 R08: 0000000000000005 R09: 000000000000002b [ 49.291447][ T3606] R10: 000000000000002b R11: 0000000000000001 R12: 000000000000002b [ 49.299408][ T3606] R13: ffffc90000ade070 R14: ffff88801bc9d000 R15: 0000000000000070 [ 49.307374][ T3606] FS: 0000555555af8300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 49.316310][ T3606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.322886][ T3606] CR2: 00007f1f78d4ca70 CR3: 0000000017fdf000 CR4: 00000000003506e0 [ 49.330937][ T3606] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.338910][ T3606] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.346872][ T3606] Call Trace: [ 49.350141][ T3606] [ 49.353075][ T3606] ? do_syscall_64+0x35/0xb0 [ 49.357754][ T3606] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 49.363820][ T3606] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 49.369628][ T3606] ? check_func_arg_reg_off+0x210/0x210 [ 49.375172][ T3606] ? kmem_cache_alloc_trace+0x48/0x3f0 [ 49.380643][ T3606] ? mark_reg_unknown+0x3e/0xc0 [ 49.385510][ T3606] do_check_common+0x612a/0xd2c0 [ 49.390448][ T3606] ? lockdep_hardirqs_on+0x79/0x100 [ 49.395645][ T3606] ? kasan_quarantine_put+0xf5/0x210 [ 49.400925][ T3606] ? lockdep_hardirqs_on+0x79/0x100 [ 49.406122][ T3606] ? check_helper_call+0x9100/0x9100 [ 49.411401][ T3606] ? push_insn+0x220/0x530 [ 49.415816][ T3606] ? kvfree+0x42/0x50 [ 49.419804][ T3606] ? check_cfg+0x670/0xb40 [ 49.424217][ T3606] bpf_check+0x72eb/0xb040 [ 49.428629][ T3606] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 49.434610][ T3606] ? bpf_get_btf_vmlinux+0x10/0x10 [ 49.439717][ T3606] ? lock_downgrade+0x6e0/0x6e0 [ 49.444580][ T3606] ? __might_fault+0xd1/0x170 [ 49.449254][ T3606] ? lock_downgrade+0x6e0/0x6e0 [ 49.454099][ T3606] ? ktime_get_with_offset+0x3f2/0x500 [ 49.459554][ T3606] ? memset+0x20/0x40 [ 49.463534][ T3606] ? bpf_obj_name_cpy+0x144/0x1a0 [ 49.468557][ T3606] bpf_prog_load+0xfb2/0x2250 [ 49.473237][ T3606] ? __bpf_prog_put.constprop.0+0x220/0x220 [ 49.479128][ T3606] ? find_held_lock+0x2d/0x110 [ 49.483890][ T3606] ? __might_fault+0xd1/0x170 [ 49.488560][ T3606] ? lock_downgrade+0x6e0/0x6e0 [ 49.493407][ T3606] ? bpf_lsm_bpf+0x5/0x10 [ 49.497733][ T3606] __sys_bpf+0x11a1/0x5790 [ 49.502234][ T3606] ? lock_release+0x780/0x780 [ 49.506923][ T3606] ? ptrace_stop.part.0+0x510/0xa80 [ 49.512118][ T3606] ? bpf_perf_link_attach+0x520/0x520 [ 49.517491][ T3606] ? do_raw_spin_lock+0x120/0x2a0 [ 49.522513][ T3606] ? rwlock_bug.part.0+0x90/0x90 [ 49.527458][ T3606] ? _raw_spin_lock_irq+0x41/0x50 [ 49.532499][ T3606] ? find_held_lock+0x2d/0x110 [ 49.537263][ T3606] ? _raw_spin_unlock_irq+0x1f/0x40 [ 49.542459][ T3606] ? _raw_spin_unlock_irq+0x1f/0x40 [ 49.547652][ T3606] ? lockdep_hardirqs_on+0x79/0x100 [ 49.552849][ T3606] __x64_sys_bpf+0x75/0xb0 [ 49.557259][ T3606] do_syscall_64+0x35/0xb0 [ 49.561668][ T3606] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 49.567574][ T3606] RIP: 0033:0x7f1d0a2f9c59 [ 49.571993][ T3606] 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 [ 49.591947][ T3606] RSP: 002b:00007ffea4be89f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 49.600353][ T3606] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1d0a2f9c59 [ 49.608314][ T3606] RDX: 0000000000000080 RSI: 0000000020000a00 RDI: 0000000000000005 [ 49.616280][ T3606] RBP: 00007f1d0a2bde00 R08: 0000000000000000 R09: 0000000000000000 [ 49.624242][ T3606] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007f1d0a2bde90 [ 49.632214][ T3606] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 49.640189][ T3606] [ 49.643199][ T3606] Modules linked in: [ 49.648088][ T3606] ---[ end trace 0000000000000000 ]--- [ 49.653609][ T3606] RIP: 0010:check_helper_call+0x4299/0x9100 [ 49.659523][ T3606] 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 [ 49.679295][ T3606] RSP: 0018:ffffc90002eff410 EFLAGS: 00010202 [ 49.685406][ T3606] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 49.693412][ T3606] RDX: 0000000000000001 RSI: ffffffff818d2238 RDI: 0000000000000008 [ 49.701397][ T3606] RBP: ffffc90002eff610 R08: 0000000000000005 R09: 000000000000002b [ 49.709463][ T3606] R10: 000000000000002b R11: 0000000000000001 R12: 000000000000002b [ 49.717472][ T3606] R13: ffffc90000ade070 R14: ffff88801bc9d000 R15: 0000000000000070 [ 49.725499][ T3606] FS: 0000555555af8300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 49.734491][ T3606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.741156][ T3606] CR2: 00007f1d0a30b000 CR3: 0000000017fdf000 CR4: 00000000003506f0 [ 49.749159][ T3606] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.757179][ T3606] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.765384][ T3606] Kernel panic - not syncing: Fatal exception [ 49.771728][ T3606] Kernel Offset: disabled [ 49.776047][ T3606] Rebooting in 86400 seconds..