pa-fazil
/
android_system_core
mirror of https://github.com/fazilsheik96/android_system_core.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ramdisk_node_list: Add urandom node 

Bionic requires random numbers to init the shadow call stack. Those
numbers are obtained via the syscall getrandom (non-blocking) and will
fallback to /dev/urandom if the former fails.

When loading pKVM modules, we are so early in the boot process that the
only source of entropy for the linux RNG are the architecture random
number generators... which might be available on some platforms. Without
any source of entropy, the only way of generating a random number is to
try to generate some, which is what the bionic fallback expects via
urandom.

As a consequence, add the urandom node to the initramfs.

Bug: 274876849
Change-Id: I164b08f026a238dad9f27a345bdef96717f2aa74
This commit is contained in:
Vincent Donnefort 2023-04-28 09:30:23 +01:00
parent 242d5fb816
commit b6e3d145aa
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
rootdir/ramdisk_node_list
View File

@ -1,3 +1,4 @@
dir dev 0755 0 0
nod dev/null 0600 0 0 c 1 3
nod dev/console 0600 0 0 c 5 1
nod dev/urandom 0600 0 0 c 1 9