./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1873417100 <...> Warning: Permanently added '10.128.0.108' (ED25519) to the list of known hosts. execve("./syz-executor1873417100", ["./syz-executor1873417100"], 0x7ffedc427510 /* 10 vars */) = 0 brk(NULL) = 0x55555d82a000 brk(0x55555d82ad00) = 0x55555d82ad00 arch_prctl(ARCH_SET_FS, 0x55555d82a380) = 0 set_tid_address(0x55555d82a650) = 5827 set_robust_list(0x55555d82a660, 24) = 0 rseq(0x55555d82aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1873417100", 4096) = 28 getrandom("\x90\x0e\x02\xd0\xe3\xdf\xbe\x4e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555d82ad00 brk(0x55555d84bd00) = 0x55555d84bd00 brk(0x55555d84c000) = 0x55555d84c000 mprotect(0x7f56a8d03000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 executing program write(1, "executing program\n", 18) = 18 socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_ALL)) = 3 setsockopt(3, SOL_PACKET, PACKET_RX_RING, 0x2000000000c0, 28) = 0 mmap(0x200000000000, 196608, PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = 0x200000000000 mremap(0x200000001000, 12288, 16384, MREMAP_MAYMOVE|MREMAP_FIXED, 0x200000004000) = 0x200000004000 [ 89.184911][ T5827] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN PTI [ 89.196849][ T5827] KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] [ 89.205390][ T5827] CPU: 1 UID: 0 PID: 5827 Comm: syz-executor187 Not tainted 6.14.0-syzkaller-12456-gacc4d5ff0b61 #0 PREEMPT(full) [ 89.217482][ T5827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 89.227562][ T5827] RIP: 0010:__se_sys_mremap+0x25fa/0x2c00 [ 89.233366][ T5827] Code: c0 0f 85 0e 05 00 00 0f b6 9c 24 20 03 00 00 31 ff 89 de e8 68 9c ad ff 85 db 0f 84 7b 01 00 00 e8 5b 99 ad ff e9 9e 00 00 00 <80> 78 04 00 74 0a bf 20 00 00 00 e8 46 2d 15 00 4c 8b 34 25 20 00 [ 89.252997][ T5827] RSP: 0018:ffffc9000414fb40 EFLAGS: 00010246 [ 89.259187][ T5827] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff92000829fca [ 89.267167][ T5827] RDX: 0000000000000000 RSI: 0000000010000000 RDI: 0000000000000000 [ 89.275236][ T5827] RBP: ffffc9000414ff00 R08: ffffffff821a7ea4 R09: ffffffff8c1f2397 [ 89.283219][ T5827] R10: 0000000000000004 R11: ffff888030613c00 R12: 0000200000000000 [ 89.291202][ T5827] R13: ffff888077690780 R14: 00000000180000fa R15: ffffc9000414fcd0 [ 89.299274][ T5827] FS: 000055555d82a380(0000) GS:ffff8881250cf000(0000) knlGS:0000000000000000 [ 89.308208][ T5827] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.314797][ T5827] CR2: 00002000000000c0 CR3: 0000000034a4a000 CR4: 00000000003526f0 [ 89.322812][ T5827] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.330788][ T5827] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.338872][ T5827] Call Trace: [ 89.342342][ T5827] [ 89.345285][ T5827] ? __pfx___se_sys_mremap+0x10/0x10 [ 89.350599][ T5827] ? _raw_spin_lock_irq+0xdf/0x120 [ 89.355732][ T5827] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 89.361294][ T5827] ? _raw_spin_unlock_irq+0x23/0x50 [ 89.366587][ T5827] ? lockdep_hardirqs_on+0x9d/0x150 [ 89.371800][ T5827] ? _raw_spin_unlock_irq+0x2e/0x50 [ 89.377093][ T5827] ? ptrace_notify+0x282/0x390 [ 89.381877][ T5827] ? __x64_sys_mremap+0x20/0xc0 [ 89.386738][ T5827] do_syscall_64+0xf3/0x230 [ 89.391249][ T5827] ? clear_bhb_loop+0x45/0xa0 [ 89.396018][ T5827] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.401919][ T5827] RIP: 0033:0x7f56a8c90369 [ 89.406350][ T5827] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 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 b8 ff ff ff f7 d8 64 89 01 48 [ 89.425960][ T5827] RSP: 002b:00007ffc63c1c6c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 [ 89.434379][ T5827] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f56a8c90369 [ 89.442366][ T5827] RDX: 0000000000004000 RSI: 0000000000001000 RDI: 0000200000000000 [ 89.450351][ T5827] RBP: 0000200000001000 R08: 0000200000001000 R09: 0000000000000000 [ 89.458504][ T5827] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 89.466477][ T5827] R13: 00007ffc63c1c8a8 R14: 0000000000000001 R15: 0000000000000001 [ 89.474461][ T5827] [ 89.477490][ T5827] Modules linked in: [ 89.481764][ T5827] ---[ end trace 0000000000000000 ]--- [ 89.488831][ T5827] RIP: 0010:__se_sys_mremap+0x25fa/0x2c00 [ 89.494716][ T5827] Code: c0 0f 85 0e 05 00 00 0f b6 9c 24 20 03 00 00 31 ff 89 de e8 68 9c ad ff 85 db 0f 84 7b 01 00 00 e8 5b 99 ad ff e9 9e 00 00 00 <80> 78 04 00 74 0a bf 20 00 00 00 e8 46 2d 15 00 4c 8b 34 25 20 00 [ 89.515104][ T5827] RSP: 0018:ffffc9000414fb40 EFLAGS: 00010246 [ 89.521416][ T5827] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff92000829fca [ 89.529455][ T5827] RDX: 0000000000000000 RSI: 0000000010000000 RDI: 0000000000000000 [ 89.537556][ T5827] RBP: ffffc9000414ff00 R08: ffffffff821a7ea4 R09: ffffffff8c1f2397 [ 89.545652][ T5827] R10: 0000000000000004 R11: ffff888030613c00 R12: 0000200000000000 [ 89.553718][ T5827] R13: ffff888077690780 R14: 00000000180000fa R15: ffffc9000414fcd0 [ 89.562101][ T5827] FS: 000055555d82a380(0000) GS:ffff8881250cf000(0000) knlGS:0000000000000000 [ 89.571081][ T5827] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.577797][ T5827] CR2: 00002000000000c0 CR3: 0000000034a4a000 CR4: 00000000003526f0 [ 89.585809][ T5827] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.593846][ T5827] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.601905][ T5827] Kernel panic - not syncing: Fatal exception [ 89.608257][ T5827] Kernel Offset: disabled [ 89.612592][ T5827] Rebooting in 86400 seconds..