https://sourceware.org/bugzilla/show_bug.cgi?id=21377
Bug ID: 21377
Summary: readelf: NULL pointer dereference in
print_symbol_for_build_attribute (readelf.c)
Product: binutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: ago at gentoo dot org
Target Milestone: ---
Created attachment 9990
--> https://sourceware.org/bugzilla/attachment.cgi?id=9990&action=edit
stacktrace
Hello,
this is compiled from master. I don't know if previous version are affected.
# readelf -a $FILE
==7569==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000004 (pc
0x0000005ca9f5 bp 0x7ffcef629b70 sp 0x7ffcef629b20 T0)
==7569==The signal is caused by a READ memory access.
==7569==Hint: address points to the zero page.
#0 0x5ca9f4 in print_symbol_for_build_attribute
/tmp/portage/sys-devel/binutils-9999/work/binutils/binutils/readelf.c:16671:16
Reproducer:
https://github.com/asarubbo/poc/blob/master/00273-binutils-NULLptr-print_symbol_for_build_attribute
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