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authoraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2008-03-11 17:17:59 +0000
committeraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2008-03-11 17:17:59 +0000
commit902b27d0b8d5bfa840eaf389d7cbcc28b57e3fbe (patch)
tree88c3355a4eaf8533669c87a6dab7c8a4afcd8557 /block.h
parentb94ed5772eb31e8fad4b823351e8152839bf722a (diff)
Fix CVE-2008-0928 - insufficient block device address range checking
Qemu 0.9.1 and earlier does not perform range checks for block device read or write requests, which allows guest host users with root privileges to access arbitrary memory and escape the virtual machine. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4037 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'block.h')
-rw-r--r--block.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/block.h b/block.h
index b73050556a..0673a635a2 100644
--- a/block.h
+++ b/block.h
@@ -45,6 +45,7 @@ typedef struct QEMUSnapshotInfo {
it (default for
bdrv_file_open()) */
#define BDRV_O_DIRECT 0x0020
+#define BDRV_O_AUTOGROW 0x0040 /* Allow backing file to extend when writing past end of file */
#ifndef QEMU_IMG
void bdrv_info(void);