diff options
| author | Collin Walling <walling@linux.ibm.com> | 2020-09-15 15:44:11 -0400 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2020-10-02 13:52:49 +0200 |
| commit | c1db53a5910f988eeb32f031c53a50f3373fd824 (patch) | |
| tree | 5d92e07d347e833103135b2a58f6c9f91b9ea324 /include | |
| parent | db13387ca01a69d870cc16dd232375c2603596f2 (diff) | |
s390/sclp: read sccb from mem based on provided length
The header contained within the SCCB passed to the SCLP service call
contains the actual length of the SCCB. Instead of allocating a static
4K size for the work sccb, let's allow for a variable size determined
by the value in the header. The proper checks are already in place to
ensure the SCCB length is sufficent to store a full response and that
the length does not cross any explicitly-set boundaries.
Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-Id: <20200915194416.107460-4-walling@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/s390x/sclp.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/hw/s390x/sclp.h b/include/hw/s390x/sclp.h index cd730772f9..374ea83e78 100644 --- a/include/hw/s390x/sclp.h +++ b/include/hw/s390x/sclp.h @@ -178,7 +178,7 @@ typedef struct IoaCfgSccb { typedef struct SCCB { SCCBHeader h; - char data[SCCB_DATA_LEN]; + char data[]; } QEMU_PACKED SCCB; #define TYPE_SCLP "sclp" |