https://sourceware.org/bugzilla/show_bug.cgi?id=33967
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #2 from Mark Wielaard <mark at klomp dot org> ---
commit e91caaa8fcf51b8484b4a47df317d3362e462c37
Author: Mark Wielaard <[email protected]>
Date: Sat Mar 7 15:55:48 2026 +0100
libelf: elf_update should make sure section zero exists
elf_update might crash for 65280+ sections when section zero headers
aren't loaded. Make sure section zero is loaded before trying to write
to it.
Add testcase to tests/test-manyfuncs.c but use ELF_C_READ_MMAP_PRIVATE
to workaround https://sourceware.org/bugzilla/show_bug.cgi?id=33968
* libelf/elf32_updatenull.c (updatenull_wrlock): Call
getshdr_wrlock to load shdr.
* tests/test-manyfuncs.c (check_elf): Use elf_begin with
ELF_C_READ_MMAP_PRIVATE if use_mmap. Call elf_update early.
https://sourceware.org/bugzilla/show_bug.cgi?id=33967
Signed-off-by: Mark Wielaard <[email protected]>
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