Add two parameter to specify how many times a kexec kernel can be loaded.
These parameter allow hardening the system.
While we are at it, fix a documentation issue and refactor some code.
To: Jonathan Corbet <[email protected]>
To: Eric Biederman <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: Joel Fernandes (Google) <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Ross Zwisler <[email protected]>
To: Philipp Rudo <[email protected]>
Signed-off-by: Ricardo Ribalda <[email protected]>
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Changes in v2:
- Instead of kexec_reboot_disabled, add two new counters (Thanks Philipp!)
- Link to v1: https://lore.kernel.org/r/[email protected]
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Ricardo Ribalda (3):
Documentation: sysctl: Correct kexec_load_disabled
kexec: Factor out kexec_load_permited
kexec: Introduce paramters load_limit_reboot and load_limit_panic
Documentation/admin-guide/kernel-parameters.txt | 14 ++++
Documentation/admin-guide/sysctl/kernel.rst | 7 +-
include/linux/kexec.h | 3 +-
kernel/kexec.c | 2 +-
kernel/kexec_core.c | 98 ++++++++++++++++++++++++-
kernel/kexec_file.c | 2 +-
6 files changed, 119 insertions(+), 7 deletions(-)
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base-commit: 479174d402bcf60789106eedc4def3957c060bad
change-id: 20221114-disable-kexec-reset-19b7e117338f
Best regards,
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Ricardo Ribalda <[email protected]>