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Fix UB and memory leaks in dump.c

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mid-kid 2024-11-14 18:48:20 +01:00
parent 20566600fa
commit 5f7df333d8
1 changed files with 5 additions and 2 deletions
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7
relink/dump.c
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@ -56,12 +56,13 @@ struct pe_rsrc_string {
uint16_t read_u16(const unsigned char *mem)
{
return mem[0] << 0 | mem[1] << 8;
return (uint16_t)mem[0] << 0 | (uint16_t)mem[1] << 8;
}
uint32_t read_u32(const unsigned char *mem)
{
return mem[0] << 0 | mem[1] << 8 | mem[2] << 16 | mem[3] << 24;
return (uint32_t)mem[0] << 0 | (uint32_t)mem[1] << 8 |
(uint32_t)mem[2] << 16 | (uint32_t)mem[3] << 24;
}
bool pe_open_read_header(struct pe_file *file)
@ -263,11 +264,13 @@ bool pe_read_export_table(struct pe_file *file, struct pe_export *out)
if (fread(name_tab, 4 * name_num, 1, file->f) != 1) goto error;
free(func_tab);
free(name_tab);
free(ords_tab);
return true;
error:
free(func_tab);
free(name_tab);
free(ords_tab);
return false;
}