diff options
Diffstat (limited to 'meta/recipes-devtools/elfutils/files/0001-libdwfl-Sanity-check-partial-core-file-data-reads.patch')
| -rw-r--r-- | meta/recipes-devtools/elfutils/files/0001-libdwfl-Sanity-check-partial-core-file-data-reads.patch | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/meta/recipes-devtools/elfutils/files/0001-libdwfl-Sanity-check-partial-core-file-data-reads.patch b/meta/recipes-devtools/elfutils/files/0001-libdwfl-Sanity-check-partial-core-file-data-reads.patch deleted file mode 100644 index 2c74a8d5d7..0000000000 --- a/meta/recipes-devtools/elfutils/files/0001-libdwfl-Sanity-check-partial-core-file-data-reads.patch +++ /dev/null @@ -1,60 +0,0 @@ -From 8cbb2f8de89d65ca52d4242f213a6206b48d2c8d Mon Sep 17 00:00:00 2001 -From: Hongxu Jia <hongxu.jia@windriver.com> -Date: Fri, 2 Nov 2018 14:22:31 +0800 -Subject: [PATCH] libdwfl: Sanity check partial core file data reads. - -There were two issues when reading note data from a core file. -We didn't check if the data we already had in a buffer was big -enough. And if we did get the data, we should check if we got -everything, or just a part of the data. - -https://sourceware.org/bugzilla/show_bug.cgi?id=23752 - -Signed-off-by: Mark Wielaard <mark@klomp.org> - -CVE: CVE-2018-18310 -Upstream-Status: Backport [http://sourceware.org/git/elfutils.git] -Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> ---- - libdwfl/dwfl_segment_report_module.c | 13 +++++++++++-- - 1 file changed, 11 insertions(+), 2 deletions(-) - -diff --git a/libdwfl/dwfl_segment_report_module.c b/libdwfl/dwfl_segment_report_module.c -index 36e5c82..8749884 100644 ---- a/libdwfl/dwfl_segment_report_module.c -+++ b/libdwfl/dwfl_segment_report_module.c -@@ -1,5 +1,5 @@ - /* Sniff out modules from ELF headers visible in memory segments. -- Copyright (C) 2008-2012, 2014, 2015 Red Hat, Inc. -+ Copyright (C) 2008-2012, 2014, 2015, 2018 Red Hat, Inc. - This file is part of elfutils. - - This file is free software; you can redistribute it and/or modify -@@ -301,7 +301,10 @@ dwfl_segment_report_module (Dwfl *dwfl, int ndx, const char *name, - inline bool read_portion (void **data, size_t *data_size, - GElf_Addr vaddr, size_t filesz) - { -- if (vaddr - start + filesz > buffer_available -+ /* Check whether we will have to read the segment data, or if it -+ can be returned from the existing buffer. */ -+ if (filesz > buffer_available -+ || vaddr - start > buffer_available - filesz - /* If we're in string mode, then don't consider the buffer we have - sufficient unless it contains the terminator of the string. */ - || (filesz == 0 && memchr (vaddr - start + buffer, '\0', -@@ -459,6 +462,12 @@ dwfl_segment_report_module (Dwfl *dwfl, int ndx, const char *name, - if (read_portion (&data, &data_size, vaddr, filesz)) - return; - -+ /* data_size will be zero if we got everything from the initial -+ buffer, otherwise it will be the size of the new buffer that -+ could be read. */ -+ if (data_size != 0) -+ filesz = data_size; -+ - assert (sizeof (Elf32_Nhdr) == sizeof (Elf64_Nhdr)); - - void *notes; --- -2.7.4 - |