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linux-rockchip/security/lockdown
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Nathan Lynch 1e7d8bcbe3 lockdown: ratelimit denial messages 
User space can flood the log with lockdown denial messages:

[  662.555584] Lockdown: bash: debugfs access is restricted; see man kernel_lockdown.7
[  662.563237] Lockdown: bash: debugfs access is restricted; see man kernel_lockdown.7
[  662.571134] Lockdown: bash: debugfs access is restricted; see man kernel_lockdown.7
[  662.578668] Lockdown: bash: debugfs access is restricted; see man kernel_lockdown.7
[  662.586021] Lockdown: bash: debugfs access is restricted; see man kernel_lockdown.7
[  662.593398] Lockdown: bash: debugfs access is restricted; see man kernel_lockdown.7

Ratelimiting these shouldn't meaningfully degrade the quality of the
information logged.

Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2022-09-14 07:37:50 -04:00
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Kconfig
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lockdown.c
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Makefile
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