christoph/wamr
1
Fork 0
Code Releases Activity

Fix wasi ctx memory free issue when app heap is corrupted (#455)

Browse Source
This commit is contained in:
Wenyong Huang
2020-11-30 17:00:53 +08:00
committed by GitHub
parent 282831eba5
commit 0700dc9cd4
5 changed files with 112 additions and 203 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
core/iwasm/common/wasm_runtime_common.h
View File

@ -74,17 +74,13 @@ typedef struct WASMModuleInstMemConsumption {
#if WASM_ENABLE_LIBC_WASI != 0
typedef struct WASIContext {
/* Use offset but not native address, since these fields are
allocated from app's heap, and the heap space may be re-allocated
after memory.grow opcode is executed, the original native address
cannot be accessed again. */
uint32 curfds_offset;
uint32 prestats_offset;
uint32 argv_environ_offset;
uint32 argv_buf_offset;
uint32 argv_offsets_offset;
uint32 env_buf_offset;
uint32 env_offsets_offset;
struct fd_table *curfds;
struct fd_prestats *prestats;
struct argv_environ_values *argv_environ;
char *argv_buf;
char **argv_list;
char *env_buf;
char **env_list;
} WASIContext;
#endif