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| author | Janosch Frank <frankja@linux.ibm.com> | 2019-09-27 15:33:22 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2019-09-30 13:51:50 +0200 |
| commit | d959f6cf502f37ddda91140a2e7a2e2b72de397e (patch) | |
| tree | 3c3f36d532654fd05139b3740934c6255ee55ce5 /hw/s390x/sclp.c | |
| parent | 6f6c9333efaf43d5a6f435266444aa2c51ac11b2 (diff) | |
| download | qemu-d959f6cf502f37ddda91140a2e7a2e2b72de397e.zip qemu-d959f6cf502f37ddda91140a2e7a2e2b72de397e.tar.gz qemu-d959f6cf502f37ddda91140a2e7a2e2b72de397e.tar.bz2 | |
s390x: sclp: fix error handling for oversize control blocks
Requests over 4k are not a spec exception.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Message-Id: <1569591203-15258-4-git-send-email-imbrenda@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'hw/s390x/sclp.c')
| -rw-r--r-- | hw/s390x/sclp.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c index 73244c9..abb6e50 100644 --- a/hw/s390x/sclp.c +++ b/hw/s390x/sclp.c @@ -213,8 +213,7 @@ int sclp_service_call(CPUS390XState *env, uint64_t sccb, uint32_t code) cpu_physical_memory_read(sccb, &work_sccb, sccb_len); /* Valid sccb sizes */ - if (be16_to_cpu(work_sccb.h.length) < sizeof(SCCBHeader) || - be16_to_cpu(work_sccb.h.length) > SCCB_SIZE) { + if (be16_to_cpu(work_sccb.h.length) < sizeof(SCCBHeader)) { r = -PGM_SPECIFICATION; goto out; } |