diff options
Diffstat (limited to 'gnu/packages/patches/qemu-CVE-2017-8112.patch')
| -rw-r--r-- | gnu/packages/patches/qemu-CVE-2017-8112.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gnu/packages/patches/qemu-CVE-2017-8112.patch b/gnu/packages/patches/qemu-CVE-2017-8112.patch new file mode 100644 index 0000000000..88b33aa2f0 --- /dev/null +++ b/gnu/packages/patches/qemu-CVE-2017-8112.patch @@ -0,0 +1,41 @@ +Fix CVE-2017-8112: + +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8112 + +Patch copied from upstream source repository: + +http://git.qemu.org/?p=qemu.git;a=commitdiff;h=f68826989cd4d1217797251339579c57b3c0934e + +From f68826989cd4d1217797251339579c57b3c0934e Mon Sep 17 00:00:00 2001 +From: P J P <ppandit@redhat.com> +Date: Tue, 25 Apr 2017 18:36:23 +0530 +Subject: [PATCH] vmw_pvscsi: check message ring page count at initialisation + +A guest could set the message ring page count to zero, resulting in +infinite loop. Add check to avoid it. + +Reported-by: YY Z <bigbird475958471@gmail.com> +Signed-off-by: P J P <ppandit@redhat.com> +Message-Id: <20170425130623.3649-1-ppandit@redhat.com> +Reviewed-by: Dmitry Fleytman <dmitry@daynix.com> +Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> +--- + hw/scsi/vmw_pvscsi.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/hw/scsi/vmw_pvscsi.c b/hw/scsi/vmw_pvscsi.c +index 75575461e2..4a106da856 100644 +--- a/hw/scsi/vmw_pvscsi.c ++++ b/hw/scsi/vmw_pvscsi.c +@@ -202,7 +202,7 @@ pvscsi_ring_init_msg(PVSCSIRingInfo *m, PVSCSICmdDescSetupMsgRing *ri) + uint32_t len_log2; + uint32_t ring_size; + +- if (ri->numPages > PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES) { ++ if (!ri->numPages || ri->numPages > PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES) { + return -1; + } + ring_size = ri->numPages * PVSCSI_MAX_NUM_MSG_ENTRIES_PER_PAGE; +-- +2.13.0 + |