Hi, this particular NULL pointer dereference error with RIP pointing to blk_flush_complete_seq ... ctrlshifti said: Code: Jun 25 11:52:38 kernel: BUG: kernel NULL pointer dereference, address: 0000000000000008 [...] Jun 25 11:52:38 kernel: RIP: 0010:blk_flush_complete_seq+0x291/0x...
https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.4/+bug/1981658 用kdump捕捉到dmesg日志后会发现有这种bug错误 BUG: kernel NULL pointer dereference, address: 0000000000000008 处理方法,针对ubuntu的报错,建议升级内核,或者换其他类型的 Linux操作系统。
[ 9.593334] BUG: kernel NULL pointer dereference, address: 0000000000000253 [ 9.598734] #PF: supervisor read access in kernel mode [ 9.601579] #PF: error_code(0x0000) - not-present page ... 当然这里产生的#PF可以暂时不管,这是由于poc中的一些参数没有设置好,这节的重点在于解决double fault问题。
[ 37.903846] usb 3-7: USB disconnect, device number 6 [ 37.908216] BUG: kernel NULL pointer dereference, address: 0000000000000030 [ 37.908226] #PF: supervisor read access in kernel mode [ 37.908231] #PF: error_code(0x0000) - not-present page [ 37.908236] PGD 0 P4D 0 [ 37.908243] Oops...
Steps to reproduce: start echo reference capture Expected result: Echo reference capture should take the feedback from speaker. Actual result: Seeing BUG: kernel NULL pointer dereference, address: 0000000000000000 with kernel panic. logs...
[23882.053990] BUG: unable to handle kernel NULL pointer dereference at 00000000000000a0 [23882.054044] IP: [<ffffffff817bba89>] ip6_datagram_connect+0x249/0x500 [23882.054080] PGD 0 [23882.054103] Oops: 0000 [#7] SMP [23882.054129] Modules linked in: aufs xt_multiport ip6table_filter ip6...
I'm encountering the same problem - can anyone comment if kernel-default-5.3.18-59.19.1.x86_64.rpm fixed the problem? This is what I caught from my serial console. r620-2 login: [ 2264.710891] BUG: kernel NULL pointer dereference, address: 0000000000000999 ...
The issue is because of dereferencing of a null address inRIPatafs_linux_write_begin+0x36/0x160by the unsigned moduleopenafs. Diagnostic Steps Kernel ring buffer fromvmcore-dmesg.txt Raw $ tail -n 40 vmcore-dmesg.txt [1476087.659656] BUG: unable to handle kernel NULL pointer dereference at ...
[23882.053990] BUG: unable to handle kernel NULL pointer dereference at 00000000000000a0 [23882.054044] IP: [<ffffffff817bba89>] ip6_datagram_connect+0x249/0x500 [23882.054080] PGD 0 [23882.054103] Oops: 0000 [#7] SMP [23882.054129] Modules linked in: aufs xt_multiport ip6table_filter ip6...
第1行BUG: kernel NULL pointer dereference, address: 0000000000000000说明了崩溃的原因: 空指针解引用; 第8行RIP: 0010:main_init+0x51/0x1000 [kbug]说明了崩溃的位置main_init函数, 偏移量0x51, 崩溃模块名称: kbug; 有了这些信息我们就可以使用gdb来定位崩溃在代码哪一行了, 步骤如下: ...