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fix integer overflow issue for i386-pc

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longpanda 2021-02-06 14:37:04 +08:00 committed by GitHub
parent 3dd3b7d26f
commit 97be7b8bfb
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 5 deletions
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10
GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy.c
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@ -541,8 +541,8 @@ static grub_err_t ventoy_cmd_incr(grub_extcmd_context_t ctxt, int argc, char **a
static grub_err_t ventoy_cmd_mod(grub_extcmd_context_t ctxt, int argc, char **args) static grub_err_t ventoy_cmd_mod(grub_extcmd_context_t ctxt, int argc, char **args)
{ {
long value1 = 0; ulonglong value1 = 0;
long value2 = 0; ulonglong value2 = 0;
char buf[32]; char buf[32];
if (argc != 3) if (argc != 3)
@ -550,10 +550,10 @@ static grub_err_t ventoy_cmd_mod(grub_extcmd_context_t ctxt, int argc, char **ar
return grub_error(GRUB_ERR_BAD_ARGUMENT, "Usage: %s {Int} {Int} {Variable}", cmd_raw_name); return grub_error(GRUB_ERR_BAD_ARGUMENT, "Usage: %s {Int} {Int} {Variable}", cmd_raw_name);
} }
value1 = grub_strtol(args[0], NULL, 10); value1 = grub_strtoull(args[0], NULL, 10);
value2 = grub_strtol(args[1], NULL, 10); value2 = grub_strtoull(args[1], NULL, 10);
grub_snprintf(buf, sizeof(buf), "%ld", (value1 % value2)); grub_snprintf(buf, sizeof(buf), "%llu", (value1 % value2));
grub_env_set(args[2], buf); grub_env_set(args[2], buf);
VENTOY_CMD_RETURN(GRUB_ERR_NONE); VENTOY_CMD_RETURN(GRUB_ERR_NONE);