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rpmsgfs: fix out of bounds access caused by data transmission farmat 

Signed-off-by: Yongrong Wang <wangyongrong@xiaomi.com>
This commit is contained in:
Yongrong Wang 2024-02-23 11:44:53 +08:00 committed by Xiang Xiao
parent 94e9599e5c
commit f55270f15b
1 changed files with 18 additions and 2 deletions
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20
fs/rpmsgfs/rpmsgfs_client.c
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@ -975,8 +975,24 @@ int rpmsgfs_client_chstat(FAR void *handle, FAR const char *path,
DEBUGASSERT(len <= space);
msg->flags = flags;
memcpy(&msg->buf, buf, sizeof(*buf));
msg->flags = flags;
msg->buf.dev = buf->st_dev;
msg->buf.ino = buf->st_ino;
msg->buf.mode = buf->st_mode;
msg->buf.nlink = buf->st_nlink;
msg->buf.uid = buf->st_uid;
msg->buf.gid = buf->st_gid;
msg->buf.rdev = buf->st_rdev;
msg->buf.size = buf->st_size;
msg->buf.atim_sec = buf->st_atim.tv_sec;
msg->buf.atim_nsec = buf->st_atim.tv_nsec;
msg->buf.mtim_sec = buf->st_mtim.tv_sec;
msg->buf.mtim_nsec = buf->st_mtim.tv_nsec;
msg->buf.ctim_sec = buf->st_ctim.tv_sec;
msg->buf.ctim_nsec = buf->st_ctim.tv_nsec;
msg->buf.blksize = buf->st_blksize;
msg->buf.blocks = buf->st_blocks;
strlcpy(msg->pathname, path, space - sizeof(*msg));
return rpmsgfs_send_recv(priv, RPMSGFS_CHSTAT, false,