vfsmod.h

Timestamp:

Oct 5, 2023 3:26:17 PM (18 months ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

159362

Message:

Additions: Linux: Replace VBSF_UNFORTIFIED_MEMCPY with RT_BCOPY_UNFORTIFIED, bugref:10209.

File:

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

-              r99433
+              r101359
 # define SFLOG_ENABLED          1
 # define SFLOGRELBOTH(aArgs)    do { RTLogBackdoorPrintf aArgs; printk aArgs; } while (0)
-#endif
-/** Similar workaround for CONFIG_FORTIFY_SOURCE kernel config option as we
- * have in the host drivers.
+ *
- * In Linux 5.18-rc1, memcpy became a wrapper which does fortify checks before
- * making a call to __underlying_memcpy().  There are a number of places where
- * we trigger the "field-spanning write" fortify check, typically when copying
- * to SHFLSTRING structure members as these are actually of variable length but
- * we don't (cannot with gcc) use RT_FLEXIBLE_ARRAY_NESTED.
+ *
- * Use this when copying to structures or members with a variable length member.
+ *
- * @see @ticketref{21410}, @bugref{10209}
- */
-#if RTLNX_VER_MIN(5,18,0) && !defined(__NO_FORTIFY) && defined(__OPTIMIZE__) && defined(CONFIG_FORTIFY_SOURCE)
-# define VBSF_UNFORTIFIED_MEMCPY __underlying_memcpy
-#else
-# define VBSF_UNFORTIFIED_MEMCPY memcpy
 #endif

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