vfsmod.h

Timestamp:

Jan 16, 2023 4:16:36 PM (2 years ago)

Author:

vboxsync

Message:

Additions: Linux: vboxsf: suppress false-positive warning caused by CONFIG_FORTIFY_SOURCE kernel config option, bugref:10209, ticketref:21410.

File:

trunk/src/VBox/Additions/linux/sharedfolders/vfsmod.h

-              r96407
+              r98096
 # define SFLOG_ENABLED          1
 # define SFLOGRELBOTH(aArgs)    do { RTLogBackdoorPrintf aArgs; printk aArgs; } while (0)
+#endif
+/* Simmilar workaround for CONFIG_FORTIFY_SOURCE kernel config option as we have for host drivers.
+ * In Linux 5.18-rc1, memcpy became a wrapper which does fortify checks
+ * before triggering __underlying_memcpy() call. We do not pass these checks in some places so
+ * bypass them for now.  */
+#if RTLNX_VER_MIN(5,18,0) && !defined(__NO_FORTIFY) && defined(__OPTIMIZE__) && defined(CONFIG_FORTIFY_SOURCE)
+# define VBOX_LINUX_MEMCPY __underlying_memcpy
+#else
+#define VBOX_LINUX_MEMCPY  memcpy
 #endif

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