【OLK-6.6】可信根为virtcca，扩展日志中出现全零日志时，系统panic

**【缺陷描述】：可信根为virtcca，扩展日志出现全零日志时，系统panic**

**一、缺陷信息**

**【缺陷所属的os版本】（如openEuler-22.03-LTS，参考命令"cat /etc/os-release"结果）**
openeulerversion=openEuler-24.03-LTS-SP1
compiletime=2024-11-28-14-33-15
gccversion=12.3.1-49.oe2403sp1
kernelversion=6.6.0-59.0.0.62.oe2403sp1
openjdkversion=1.8.0.422.b05-11.oe2403sp1
**【内核版本】（如kernel-5.10.0-60.138.0.165，参考命令"uname -r"结果）**
6.6.0-59.0.0.62.oe2403sp1
**【缺陷所属软件及版本号】（如kernel-5.10.0-60.138.0.165，参考命令"rpm -q 包名"结果）**
kernel-6.6.0-59.0.0.62.oe2403sp1.aarch64
**【环境信息】**
硬件信息
鲲鹏920
- 提供跟硬件相关的信息，如架构、cpu和内存规格等
- 虚拟机场景，额外补充宿主机os版本类型

软件信息

- 跟缺陷所属软件相关的其它软件版本信息（如软件包构建失败由gcc引起，请填写gcc的版本号）

网络信息

- 如果有特殊组网，请提供网络拓扑信息以及网络数据走向

**【问题复现步骤】：请描述具体的操作步骤**
增加系统参数 ima_policy=tcb
对test同时进行读写
#include <stdio.h>

int main()
{
   FILE *fp1 = NULL;
   FILE *fp2 = NULL;

fp1 = fopen("test", "w");
   fp2 = fopen("test", "r");
   fclose(fp1);
   fclose(fp2);
}

**【实际结果】**，请描述出问题的结果和影响
系统panic
[   71.040138][  T379] Internal error: Oops: 0000000096000006 [#1] SMP
[   71.041923][  T379] Modules linked in:
[   71.045827][  T379] CPU: 0 PID: 379 Comm: violation Not tainted 6.6.0 #1
[   71.052097][  T379] Hardware name: linux,dummy-virt (DT)
[   71.057903][  T379] pstate: 21400005 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[   71.065879][  T379] pc : __memcpy+0x24/0x240
[   71.071228][  T379] lr : ima_virtcca_extend+0x84/0x190
[   71.077323][  T379] sp : ffff8000806636d0
[   71.084179][  T379] x29: ffff800080663730 x28: 0000000000000010 x27: 0000000000000000
[   71.098503][  T379] x26: ffffbb7ebcb41758 x25: ffff00004082bff5 x24: ffffbb7ebdbdf520
[   71.112741][  T379] x23: 0000000000000001 x22: ffff000042d976c0 x21: 0000000000000001
[   71.127210][  T379] x20: ffffbb7ebdf13000 x19: ffff8000806636e8 x18: 0000000000000000
[   71.141528][  T379] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[   71.155628][  T379] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
[   71.169894][  T379] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffbb7ebbe998c0
[   71.183859][  T379] x8 : ffff000042e82b30 x7 : 747365742f746f6f x6 : 0000000000000000
[   71.192073][  T379] x5 : ffff800080663708 x4 : 0000000000000074 x3 : 0000000000000042
[   71.206537][  T379] x2 : 0000000000000020 x1 : 0000000000000054 x0 : ffff8000806636e8
[   71.216713][  T379] Call trace:
[   71.221287][  T379]  __memcpy+0x24/0x240
[   71.229891][  T379]  ima_add_template_entry+0xa0/0x230
[   71.235874][  T379]  ima_store_template+0x80/0x1a8
[   71.245452][  T379]  ima_add_violation+0xb0/0x188
[   71.254655][  T379]  ima_rdwr_violation_check+0xec/0x160
[   71.264369][  T379]  process_measurement+0x144/0xa20
[   71.274050][  T379]  ima_file_check+0x60/0xd0
[   71.282939][  T379]  do_open+0x108/0x390
[   71.288296][  T379]  path_openat+0x130/0x270
[   71.295887][  T379]  do_filp_open+0x8c/0x148
[   71.302410][  T379]  do_sys_openat2+0x20c/0x270
[   71.307907][  T379]  __arm64_sys_openat+0x70/0xc0
[   71.317024][  T379]  invoke_syscall+0x50/0x128
[   71.322618][  T379]  el0_svc_common.constprop.0+0x48/0xf0
[   71.333347][  T379]  do_el0_svc+0x24/0x38
[   71.342420][  T379]  el0_svc+0x44/0x1b8
[   71.345005][  T379]  el0t_64_sync_handler+0x100/0x130
[   71.350868][  T379]  el0t_64_sync+0x188/0x190
[   71.357500][  T379] Code: f100805f 540003c8 f100405f 540000c3 (a9401c26)
[   71.366906][  T379] ---[ end trace 0000000000000000 ]---
[   71.373488][  T379] Kernel panic - not syncing: Oops: Fatal exception
[   71.380793][  T379] SMP: stopping secondary CPUs
[   71.386291][  T379] Kernel Offset: 0x3b7e3b800000 from 0xffff800080000000
[   71.393758][  T379] PHYS_OFFSET: 0xc0000000
[   71.401168][  T379] CPU features: 0x00,00000000,00000003,4004cf43,157ffea3
[   71.408289][  T379] Memory Limit: none
[   71.414377][  T379] ---[ end Kernel panic - not syncing: Oops: Fatal exception ]---

**【期望结果】**，请描述出期望的结果和影响
系统无异常
**【其他相关附件信息】**
比如系统message日志/组件日志、dump信息、图片等

**【缺陷详情及分析指导参考链接】**

GVP openEuler/kernel
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