Author: wulf Date: Tue Jul 14 21:56:59 2020 New Revision: 363205 URL: https://svnweb.freebsd.org/changeset/base/363205
Log: linuxkpi: Ignore NULL pointers passed to string parameter of kstr(n)dup That follows Linux and fixes related drm-kmod-5.3 panic. Reviewed by: imp, hselasky MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D25657 Modified: head/sys/compat/linuxkpi/common/include/linux/string.h Modified: head/sys/compat/linuxkpi/common/include/linux/string.h ============================================================================== --- head/sys/compat/linuxkpi/common/include/linux/string.h Tue Jul 14 21:43:57 2020 (r363204) +++ head/sys/compat/linuxkpi/common/include/linux/string.h Tue Jul 14 21:56:59 2020 (r363205) @@ -103,6 +103,8 @@ kstrdup(const char *string, gfp_t gfp) char *retval; size_t len; + if (string == NULL) + return (NULL); len = strlen(string) + 1; retval = kmalloc(len, gfp); if (retval != NULL) @@ -115,6 +117,8 @@ kstrndup(const char *string, size_t len, gfp_t gfp) { char *retval; + if (string == NULL) + return (NULL); retval = kmalloc(len + 1, gfp); if (retval != NULL) strncpy(retval, string, len); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
