From: Greg Kroah-Hartman Date: Sat, 12 Jan 2019 08:03:45 +0000 (+0100) Subject: 4.14-stable patches X-Git-Tag: v4.20.2~5 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8d9a3bec3061a43b2a83baa714a5a6608ffa5b98;p=thirdparty%2Fkernel%2Fstable-queue.git 4.14-stable patches added patches: scripts-kallsyms-filter-arm64-s-__efistub_-symbols.patch --- diff --git a/queue-4.14/scripts-kallsyms-filter-arm64-s-__efistub_-symbols.patch b/queue-4.14/scripts-kallsyms-filter-arm64-s-__efistub_-symbols.patch new file mode 100644 index 00000000000..00ec728583c --- /dev/null +++ b/queue-4.14/scripts-kallsyms-filter-arm64-s-__efistub_-symbols.patch @@ -0,0 +1,38 @@ +From 1212f7a16af492d59304ba3abccbcc5b5e41423e Mon Sep 17 00:00:00 2001 +From: Ard Biesheuvel +Date: Thu, 1 Mar 2018 17:19:01 +0000 +Subject: scripts/kallsyms: filter arm64's __efistub_ symbols + +From: Ard Biesheuvel + +commit 1212f7a16af492d59304ba3abccbcc5b5e41423e upstream. + +On arm64, the EFI stub and the kernel proper are essentially the same +binary, although the EFI stub executes at a different virtual address +as the kernel. For this reason, the EFI stub is restricted in the +symbols it can link to, which is ensured by prefixing all EFI stub +symbols with __efistub_ (and emitting __efistub_ prefixed aliases for +routines that may be shared between the core kernel and the stub) + +These symbols are leaking into kallsyms, polluting the namespace, so +let's filter them explicitly. + +Signed-off-by: Ard Biesheuvel +Signed-off-by: Will Deacon +Cc: Nick Desaulniers +Signed-off-by: Greg Kroah-Hartman + +--- + scripts/kallsyms.c | 1 + + 1 file changed, 1 insertion(+) + +--- a/scripts/kallsyms.c ++++ b/scripts/kallsyms.c +@@ -221,6 +221,7 @@ static int symbol_valid(struct sym_entry + + static char *special_prefixes[] = { + "__crc_", /* modversions */ ++ "__efistub_", /* arm64 EFI stub namespace */ + NULL }; + + static char *special_suffixes[] = { diff --git a/queue-4.14/series b/queue-4.14/series index ae23373e68b..49aaf12007b 100644 --- a/queue-4.14/series +++ b/queue-4.14/series @@ -90,6 +90,7 @@ gfs2-fix-loop-in-gfs2_rbm_find.patch b43-fix-error-in-cordic-routine.patch selinux-policydb-fix-byte-order-and-alignment-issues.patch lockd-show-pid-of-lockd-for-remote-locks.patch +scripts-kallsyms-filter-arm64-s-__efistub_-symbols.patch arm64-drop-linker-script-hack-to-hide-__efistub_-symbols.patch arm64-relocatable-fix-inconsistencies-in-linker-script-and-options.patch powerpc-tm-set-msr-just-prior-to-recheckpoint.patch