On 01/04/23 at 03:38pm, Ricardo Ribalda wrote: > 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. The whole series looks good to me, thx. Acked-by: Baoquan He <bhe@xxxxxxxxxx> > > To: Jonathan Corbet <corbet@xxxxxxx> > To: Eric Biederman <ebiederm@xxxxxxxxxxxx> > Cc: linux-doc@xxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx > Cc: kexec@xxxxxxxxxxxxxxxxxxx > Cc: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx> > Cc: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx> > Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> > Cc: Ross Zwisler <zwisler@xxxxxxxxxx> > To: Philipp Rudo <prudo@xxxxxxxxxx> > To: Guilherme G. Piccoli <gpiccoli@xxxxxxxxxx> > Cc: Bagas Sanjaya <bagasdotme@xxxxxxxxx> > Cc: Petr Tesarik <petr@xxxxxxxxxxx> > Cc: Baoquan He <bhe@xxxxxxxxxx> > Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> > > --- > Changes in v6: > - Fix kexec type on kexec_file > - Match the length of the table borders to the sections underline (Thanks Bagas!) > - Fix typo on kexec_load_limit_reboot (Thanks Petr!) > - Improve commit message (Thanks Baoquan!) > - Link to v5: https://lore.kernel.org/r/20221114-disable-kexec-reset-v5-0-1bd37caf3c75@xxxxxxxxxxxx > > Changes in v5: > - Remove maxlen from ctl_table. Thanks Steven! > - Link to v4: https://lore.kernel.org/r/20221114-disable-kexec-reset-v4-0-ab809c8d988c@xxxxxxxxxxxx > > Changes in v4 (Thanks Steven!): > - Uses sysctl instead or module_parameters > - Pass image type instead of boolean to permitted > - Fix typo on flag handling > - Return -EINVAL for values that does not change the current value. > - Link to v3: https://lore.kernel.org/r/20221114-disable-kexec-reset-v3-0-4ef4e929adf6@xxxxxxxxxxxx > > Changes in v3: > - s/paramter/parameter/ Thanks Ghilherme! > - s/permited/permitted/ Thanks Joel! > - Link to v2: https://lore.kernel.org/r/20221114-disable-kexec-reset-v2-0-c498313c1bb5@xxxxxxxxxxxx > > Changes in v2: > - Instead of kexec_reboot_disabled, add two new counters (Thanks Philipp!) > - Link to v1: https://lore.kernel.org/r/20221114-disable-kexec-reset-v1-0-fb51d20cf871@xxxxxxxxxxxx > > --- > Ricardo Ribalda (3): > Documentation: sysctl: Correct kexec_load_disabled > kexec: Factor out kexec_load_permitted > kexec: Introduce sysctl parameters kexec_load_limit_* > > Documentation/admin-guide/sysctl/kernel.rst | 25 +++++++- > include/linux/kexec.h | 3 +- > kernel/kexec.c | 4 +- > kernel/kexec_core.c | 94 ++++++++++++++++++++++++++++- > kernel/kexec_file.c | 11 ++-- > 5 files changed, 127 insertions(+), 10 deletions(-) > --- > base-commit: 479174d402bcf60789106eedc4def3957c060bad > change-id: 20221114-disable-kexec-reset-19b7e117338f > > Best regards, > -- > Ricardo Ribalda <ribalda@xxxxxxxxxxxx> >
