/*** A well-formed message can have zero or one of this field (but not* more than one).*/PROTOBUF_C_LABEL_OPTIONAL,/*** This field can be repeated any number of times (including zero) in a* well-formed message. The order of the repeated values will be* ...
payload += pwn.p64(target_info['libc_base_addr'] + target_info['pop_rdi_ret_offset']) payload += pwn.p64(target_info['libc_base_addr'] + target_info['sh_offset']) payload += pwn.p64(target_info['libc_base_addr'] + target_info['ret_offset']) payload += pwn.p64(target_i...
当ASLR(地址空间布局随机化Address Space Layout Randomization)机制关闭时,程序每次运行时的内存布局都是相同的,当该机制处于打开状态时,程序每次运行时的内存布局都会发生变化。 1 2 3 4 5 0:完全关闭 1:部分开启(堆、栈、MMAP、动态链接库) 2:完全开启(BRK、堆、栈、MMAP、动态链接库) echo xxx | sudo t...
* @dev: the first device number for which this device is responsible * @count: the number of consecutive minor numbers corresponding to this * device * * cdev_add() adds the device represented by @p to the system, making it * live immediately. A negative error code is returned on failu...
p32 and u32 pwnlib.util.packingUseful functions to make sure you never have to remember if '>' means signed or unsigned for struct.pack, and no more ugly [0] index at the end.Set signed and endian in sane manners (also these can be set once on context and not bothered with again...
我们回到程序跳转到ld_2.24.so的部分,这一段的源码是用汇编实现的,源码路径为glibc/sysdeps/i386/dl-trampoline.S(64位把i386改为x86_64),其主要代码如下: .text .globl _dl_runtime_resolve .type _dl_runtime_resolve, @function cfi_startproc
Downsides are that you require a a puree burner, and, unfortunately, the disc drive, the PS 4, is something that breaks down quite easily. So maybe not everyone can use this exploit And all the some are unpatachable. You can can can can can trigger and and no no no no no no no ...
structexit_function_list *cur = *listp;// 在此取得 initial 里面的第一个 exit_function_list if(cur == NULL)// 不会为空 { __exit_funcs_done =true; break; } // 执行 exit_function_list 中函数的个数,idx 用于遍历执行 while(cur->idx > 0)// 判断是否到底 ...
15 + #define hexdump(p) if(PacketBuilder::debug) PacketBuilder::hexPrint(p) 23 16 24 17 class PacketBuilder { 25 18 public: 19 + static void hexPrint(const uint8_t* data, size_t len); 20 + 26 21 static void hexPrint(const pcpp::Packet &packet); 27 22 28 23 sta...
}check_remalloced_chunk(av, victim, nb);void*p =chunk2mem(victim);alloc_perturb(p, bytes);returnp; } } 首先根据nb找到该大小对应的fastbin的项, 然后看看该fastbin是不是为空,如果非空,就分配该fastbin的第一个chunk给用户。 分配过程还会检查待分配的chunk的size是不是满足在该fastbin项的限制。