mirrors/security-misc
1
0
Fork 0
mirror of https://github.com/Kicksecure/security-misc.git synced 2025-07-22 05:43:31 +07:00
Code Issues Packages Projects Releases Wiki Activity

Revert "Remove the optional slub_debug parameter since it is no longer recommended"

Browse Source 
This reverts commit 48e1ac4163.
This commit is contained in:
Raja Grewal
2024-08-03 14:49:48 +10:00
parent de6f3ea74a
commit b77d1a2b98
2 changed files with 12 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
etc/default/grub.d/40_kernel_hardening.cfg
View File

@ -28,6 +28,15 @@ kver="$(dpkg-query --show --showformat='${Version}' "$kpkg")" 2>/dev/null || tru
##
GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX slab_nomerge"
## Enable sanity checks and red zoning of slabs.
##
## https://www.kernel.org/doc/html/latest/mm/slub.html
## https://lore.kernel.org/all/20210601182202.3011020-5-swboyd@chromium.org/T/#u
##
## Disabled as enabling this implicitly disables kernel pointer hashing.
##
#GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX slub_debug=FZ"
## Zero memory at allocation time and free time.
## Fills newly allocated pages, freed pages, and heap objects with zeros.
## Mitigates use-after-free exploits by erasing sensitive information in memory.