Messages in this thread Patch in this message | | | Date | Thu, 31 Mar 2022 12:24:16 +0100 | From | Austin Kim <> | Subject | [PATCH v2] arm: kdump: add invalid input check for 'crashkernel=0' |
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From: Austin Kim <austin.kim@lge.com>
Add invalid input check expression when 'crashkernel=0' is specified running kdump.
Signed-off-by: Austin Kim <austin.kim@lge.com> --- arch/arm/kernel/setup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 039feb7cd590..1e8a50a97edf 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -1004,7 +1004,8 @@ static void __init reserve_crashkernel(void) total_mem = get_total_mem(); ret = parse_crashkernel(boot_command_line, total_mem, &crash_size, &crash_base); - if (ret) + /* invalid value specified or crashkernel=0 */ + if (ret || !crash_size) return; if (crash_base <= 0) { -- 2.20.1
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