diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index b4f7b14fbe..9cba25dc88 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -4900,6 +4900,9 @@ static inline abi_ulong do_shmat(CPUArchState *cpu_env, return -TARGET_EINVAL; } } + if (!guest_range_valid(shmaddr, shm_info.shm_segsz)) { + return -TARGET_EINVAL; + } mmap_lock(); @@ -7468,7 +7471,7 @@ static int open_self_maps(void *cpu_env, int fd) } if (h2g_valid(min)) { int flags = page_get_flags(h2g(min)); - max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX); + max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX) + 1; if (page_check_range(h2g(min), max - min, flags) == -1) { continue; } |