echo 0 > /sys/kernel/slab/<slab name>/trace //因为开启trace追踪后,会不断的打印,需要重新设置trace为0后才会停止 Ps:因为开启trace可能导致系统输入输出无响应,关闭操作最好放到脚本中做 打印的slab trace大概长这样: [ 1920.528920] TRACE kmalloc-4096 alloc 0xc2ec53c0 inuse=7 fp=0x (null) [ 1920...
0xffffffff811c0005 new_slab ([kernel.kallsyms]) 0xffffffff81633848 __slab_alloc ([kernel.kallsyms]) 0xffffffff811c5291 __kmalloc_node_track_caller ([kernel.kallsyms]) 0xffffffff8151a8c1 __kmalloc_reserve.isra.30 ([kernel.kallsyms]) 0xffffffff8151b7cd alloc_sib ([kernel.kallsyms]) 0xffff...
kpart_info.mem[0].size =12; kpart_info.mem[1].addr = (unsignedlong)kmalloc(4,GFP_KERNEL);;if(kpart_info.mem[1].addr ==0)return-ENOMEM; kpart_info.mem[1].memtype =UIO_MEM_LOGICAL; ---逻辑地址kpart_info.mem[1].size =4; unsignedlong*ret_val_add = (unsignedlong*)(kpart_info....
1. 内核ko timer定时器,检测sys_call_table adress变动 1. The module does a copy of the Syscall Table to save all syscalls pointers2. Afterthisfirst step, the module uses the kernel timer to check every X secondes the diff between the Syscall Table and the copy.3. If a diffisfound, the...
Disabling lock debugging due to kernel taint INFO: Allocated in sock_kmalloc+0x93/0x100 age=40 cpu=1 pid=6850 [< none >] ___slab_alloc+0x648/0x8c0 mm/slub.c:2438 [< none >] __slab_alloc+0x4c/0x90 mm/slub.c:2467 [< inline >] slab_alloc_node mm/slub.c:2530 [< inline ...
(struct control_device *) kmalloc(sizeof(*res), GFP_KERNEL); if (!res) goto return_res;res->vcam_devices = (struct vcam_device **) kmalloc( sizeof(struct vcam_device *) * devices_max, GFP_KERNEL); if (!(res->vcam_devices)) ...
dump_syscall_table=kmalloc(syscall_table_size, GFP_KERNEL);if(!dump_syscall_table){ printk(KERN_INFO"hook_detection: Failed - Not enough memory\n");return-ENOMEM; } memcpy(dump_syscall_table, addr_syscall_table, syscall_table_size); ...
图片取自The Linux Kernel's VFS Layer vm.min_free_kbytes 系统的"保留内存"的大小,"保留内存"用于低内存状态下的"atomic memory allocation requests"(eg. kmalloc + GFP_ATOMIC),该参数也被用于计算开始内存回收的阀值,默认在开机的时候根据当前的内存计算所得,越大则表示系统会越早开始内存回收。
dump_syscall_table=kmalloc(syscall_table_size, GFP_KERNEL);if(!dump_syscall_table){ printk(KERN_INFO"hook_detection: Failed - Not enough memory\n");return-ENOMEM; } memcpy(dump_syscall_table, addr_syscall_table, syscall_table_size); ...