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mm/kasan: support Disable Kasan read Panic

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Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
This commit is contained in:
yinshengkai
2024-05-14 15:58:32 +08:00
committed by Xiang Xiao
parent d365be9f2f
commit be86b03794
2 changed files with 34 additions and 8 deletions
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mm/Kconfig
+12 -3
View File
@@ -320,14 +320,23 @@ config MM_KASAN_GLOBAL
KEEP ( *(. data. rel. local.. LASAN0)) KEEP ( *(. data. rel. local.. LASAN0))
}", used to extract data generated by the compiler }", used to extract data generated by the compiler
config MM_KASAN_DISABLE_PANIC config MM_KASAN_DISABLE_READ_PANIC
bool "Disable panic on kasan error" bool "Disable panic on kasan read error"
default n
---help---
This option disable panic on kasan read error. It will print error info
and continue to run.
config MM_KASAN_DISABLE_WRITE_PANIC
bool "Disable panic on kasan write error"
depends on MM_KASAN depends on MM_KASAN
default n default n
---help--- ---help---
This option disable panic on kasan error. It will print error info This option disable panic on kasan write error. It will print error info
and continue to run. and continue to run.
endif # MM_KASAN
config MM_UBSAN config MM_UBSAN
bool "Undefined Behavior Sanitizer" bool "Undefined Behavior Sanitizer"
default n default n
mm/kasan/hook.c
+22 -5
View File
@@ -71,6 +71,18 @@
kasan_check_report(addr, size, true, return_address(0)); \ kasan_check_report(addr, size, true, return_address(0)); \
} }
#ifdef CONFIG_MM_KASAN_DISABLE_READ_PANIC
# define MM_KASAN_DISABLE_READ_PANIC 1
#else
# define MM_KASAN_DISABLE_READ_PANIC 0
#endif
#ifdef CONFIG_MM_KASAN_DISABLE_WRITE_PANIC
# define MM_KASAN_DISABLE_WRITE_PANIC 1
#else
# define MM_KASAN_DISABLE_WRITE_PANIC 0
#endif
/**************************************************************************** /****************************************************************************
* Private Functions * Private Functions
****************************************************************************/ ****************************************************************************/
@@ -130,11 +142,16 @@ static void kasan_report(FAR const void *addr, size_t size,
addr, size, return_address); addr, size, return_address);
kasan_show_memory(addr, size, 80); kasan_show_memory(addr, size, 80);
#ifndef CONFIG_MM_KASAN_DISABLE_PANIC
PANIC(); if ((is_write && MM_KASAN_DISABLE_WRITE_PANIC) ||
#else (!is_write && MM_KASAN_DISABLE_READ_PANIC))
dump_stack(); {
#endif dump_stack();
}
else
{
PANIC();
}
leave_critical_section(flags); leave_critical_section(flags);
} }