Max Kellermann b741f93b6e modpost: fix null pointer dereference ... [ Upstream commit 23dfd914d2 ] If the find_fromsym() call fails and returns NULL, the warn() call will dereference this NULL pointer and cause the program to crash. This happened when I tried to build with "test_user_copy" module. With this fix, it prints lots of warnings like this: WARNING: modpost: lib/test_user_copy: section mismatch in reference: (unknown)+0x4 (section: .text.fixup) -> (unknown) (section: .init.text) masahiroy@kernel.org: The issue is reproduced with ARCH=arm allnoconfig + CONFIG_MODULES=y + CONFIG_RUNTIME_TESTING_MENU=y + CONFIG_TEST_USER_COPY=m Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-04-13 13:10:10 +02:00
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.gitignore	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
Makefile	modpost: Optimize symbol search from linear to binary search	2023-10-03 20:25:59 +09:00
devicetable-offsets.c	Staging driver updates for 6.7-rc1	2023-11-03 15:31:04 -10:00
empty.c	…
file2alias.c	Kbuild updates for v6.7	2023-11-04 08:07:19 -10:00
list.h	modpost: import include/linux/list.h	2022-05-08 03:17:00 +09:00
mk_elfconfig.c	…
modpost.c	modpost: fix null pointer dereference	2024-04-13 13:10:10 +02:00
modpost.h	modpost: avoid using the alias attribute	2024-01-31 23:24:27 +09:00
sumversion.c	modpost: trim leading spaces when processing source files list	2024-02-15 06:57:19 +09:00
symsearch.c	modpost: Optimize symbol search from linear to binary search	2023-10-03 20:25:59 +09:00