d898f5be01
Resolves: bz1974178
Upstream: Fedora
Conflict: None
commit 9a6f589d99dcef114c89fde992157f5467028c8f
Author: Tao Liu <ltao@redhat.com>
Date: Fri Jun 18 18:28:04 2021 +0800
[PATCH] check for invalid physical address of /proc/kcore when making ELF dumpfile
Previously when executing makedumpfile with -E option against
/proc/kcore, makedumpfile will fail:
# makedumpfile -E -d 31 /proc/kcore kcore.dump
...
write_elf_load_segment: Can't convert physaddr(ffffffffffffffff) to an offset.
makedumpfile Failed.
It's because /proc/kcore contains PT_LOAD program headers which have
physaddr (0xffffffffffffffff). With -E option, makedumpfile will
try to convert the physaddr to an offset and fails.
Skip the PT_LOAD program headers which have such physaddr.
Signed-off-by: Tao Liu <ltao@redhat.com>
Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
Signed-off-by: Tao Liu <ltao@redhat.com>
44 lines
1.4 KiB
Diff
44 lines
1.4 KiB
Diff
From 9a6f589d99dcef114c89fde992157f5467028c8f Mon Sep 17 00:00:00 2001
|
|
From: Tao Liu <ltao@redhat.com>
|
|
Date: Fri, 18 Jun 2021 18:28:04 +0800
|
|
Subject: [PATCH] check for invalid physical address of /proc/kcore
|
|
when making ELF dumpfile
|
|
|
|
Previously when executing makedumpfile with -E option against
|
|
/proc/kcore, makedumpfile will fail:
|
|
|
|
# makedumpfile -E -d 31 /proc/kcore kcore.dump
|
|
...
|
|
write_elf_load_segment: Can't convert physaddr(ffffffffffffffff) to an offset.
|
|
|
|
makedumpfile Failed.
|
|
|
|
It's because /proc/kcore contains PT_LOAD program headers which have
|
|
physaddr (0xffffffffffffffff). With -E option, makedumpfile will
|
|
try to convert the physaddr to an offset and fails.
|
|
|
|
Skip the PT_LOAD program headers which have such physaddr.
|
|
|
|
Signed-off-by: Tao Liu <ltao@redhat.com>
|
|
Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
|
|
---
|
|
makedumpfile.c | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
diff --git a/makedumpfile-1.6.9/makedumpfile.c b/makedumpfile-1.6.9/makedumpfile.c
|
|
index 894c88e..fcb571f 100644
|
|
--- a/makedumpfile-1.6.9/makedumpfile.c
|
|
+++ b/makedumpfile-1.6.9/makedumpfile.c
|
|
@@ -7764,7 +7764,7 @@ write_elf_pages_cyclic(struct cache_data *cd_header, struct cache_data *cd_page)
|
|
if (!get_phdr_memory(i, &load))
|
|
return FALSE;
|
|
|
|
- if (load.p_type != PT_LOAD)
|
|
+ if (load.p_type != PT_LOAD || load.p_paddr == NOT_PADDR)
|
|
continue;
|
|
|
|
off_memory= load.p_offset;
|
|
--
|
|
2.29.2
|
|
|