Max Kellermann 19e525ebbb 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 13:07:39 +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	2024-04-10 16:35:47 +02:00
devicetable-offsets.c	vfio/cdx: add support for CDX bus	2023-06-16 12:27:04 -06:00
empty.c	…
file2alias.c	modpost: fix ishtp MODULE_DEVICE_TABLE built on big-endian host	2023-11-20 11:59:28 +01:00
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 13:07:39 +02:00
modpost.h	modpost: Optimize symbol search from linear to binary search	2024-04-10 16:35:47 +02:00
sumversion.c	modpost: trim leading spaces when processing source files list	2024-02-23 09:24:59 +01:00
symsearch.c	modpost: Optimize symbol search from linear to binary search	2024-04-10 16:35:47 +02:00