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Masahiro Yamada a2671601fa modpost: do not make find_tosym() return NULL 
[ Upstream commit 1102f9f85bf66b1a7bd6a40afb40efbbe05dfc05 ]

As mentioned in commit 397586506c3d ("modpost: Add '.ltext' and
'.ltext.*' to TEXT_SECTIONS"), modpost can result in a segmentation
fault due to a NULL pointer dereference in default_mismatch_handler().

find_tosym() can return the original symbol pointer instead of NULL
if a better one is not found.

This fixes the reported segmentation fault.

Fixes: a23e7584ecf3 ("modpost: unify 'sym' and 'to' in default_mismatch_handler()")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-10 16:35:47 +02:00
..
atomic
locking/atomic: scripts: fix fallback ifdeffery
2023-09-20 09:39:03 +02:00
basic
kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without recursion
2023-06-22 21:21:06 +09:00
clang-tools
gen_compile_commands: fix invalid escape sequence warning
2024-03-26 18:19:11 -04:00
coccinelle
Revert "debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage"
2023-07-29 11:05:31 -04:00
dtc
dt: dt-extract-compatibles: Don't follow symlinks when walking tree
2023-12-13 18:45:03 +01:00
dummy-tools
kbuild: dummy-tools: make MPROFILE_KERNEL checks work on BE
2023-09-01 16:38:04 +09:00
gcc-plugins
gcc-plugins: randstruct: Update code comment in relayout_struct()
2023-12-13 18:45:35 +01:00
gdb
scripts/gdb: fix lx-device-list-bus and lx-device-list-class
2023-12-13 18:45:19 +01:00
genksyms
genksyms: adjust the output format to modpost
2022-05-24 16:33:20 +09:00
kconfig
kconfig: fix infinite loop when expanding a macro at the end of file
2024-03-26 18:20:05 -04:00
ksymoops
…
mod
modpost: do not make find_tosym() return NULL
2024-04-10 16:35:47 +02:00
package
kbuild: remove stale code for 'source' symlink in packaging scripts
2023-10-01 23:06:06 +09:00
selinux
selinux: remove runtime disable message in the install_policy.sh script
2022-09-20 14:12:25 -04:00
tracing
tracing: Always use canonical ftrace path
2023-02-18 14:34:09 -05:00
.gitignore
rust: support running Rust documentation tests as KUnit ones
2023-07-19 09:32:53 -06:00
as-version.sh
kbuild: Update assembler calls to use proper flags and language target
2023-01-26 12:41:38 +09:00
asn1_compiler.c
ASN.1: Fix check for strdup() success
2023-04-21 08:58:00 -07:00
bloat-o-meter
scripts/bloat-o-meter: count weak symbol sizes
2023-08-21 13:46:25 -07:00
bootgraph.pl
…
bpf_doc.py
scripts/bpf_doc: Use silent mode when exec make cmd
2024-04-10 16:35:40 +02:00
cc-can-link.sh
…
cc-version.sh
scripts: Remove ICC-related dead code
2023-04-24 10:18:32 -07:00
check_extable.sh
…
check-git
kbuild: use git-archive for source package creation
2023-03-16 22:46:12 +09:00
check-sysctl-docs
sysctl: Remove register_sysctl_table
2023-05-23 21:43:26 -07:00
checkdeclares.pl
…
checkincludes.pl
…
checkkconfigsymbols.py
scripts: handle BrokenPipeError for python scripts
2023-01-26 12:43:33 +09:00
checkpatch.pl
- An extensive rework of kexec and crash Kconfig from Eric DeVolder
2023-08-29 14:53:51 -07:00
checkstack.pl
scripts/checkstack.pl: match all stack sizes for s390
2023-12-20 17:01:59 +01:00
checksyscalls.sh
checksyscalls: ignore fstat to silence build warning on LoongArch
2023-03-23 17:18:32 -07:00
checkversion.pl
…
cleanfile
…
cleanpatch
…
coccicheck
scripts: coccicheck: Use /usr/bin/env
2023-02-25 20:11:06 +01:00
config
…
const_structs.checkpatch
const_structs.checkpatch.pl: add kobj_type
2023-02-08 13:33:29 +01:00
decode_stacktrace.sh
scripts/decode_stacktrace.sh: optionally use LLVM utilities
2024-01-20 11:51:49 +01:00
decodecode
scripts/decodecode: Add support for RISC-V
2023-02-21 16:53:54 -08:00
depmod.sh
kbuild: move depmod rule to scripts/Makefile.modinst
2023-08-29 22:38:23 +09:00
dev-needs.sh
…
diffconfig
scripts: handle BrokenPipeError for python scripts
2023-01-26 12:43:33 +09:00
documentation-file-ref-check
…
export_report.pl
…
extract_xc3028.pl
…
extract-ikconfig
scripts/extract-ikconfig: add zstd compression support
2022-08-29 13:58:47 +09:00
extract-module-sig.pl
…
extract-sys-certs.pl
…
extract-vmlinux
…
faddr2line
scripts/faddr2line: Fix regression in name resolution on ppc64le
2022-11-16 10:42:10 +01:00
file-size.sh
…
find-unused-docs.sh
…
gcc-x86_32-has-stack-protector.sh
…
gcc-x86_64-has-stack-protector.sh
…
gen-randstruct-seed.sh
randstruct: Move seed generation into scripts/basic/
2022-05-08 01:33:07 -07:00
generate_initcall_order.pl
…
generate_rust_analyzer.py
scripts: generate_rust_analyzer: provide cfgs for core and alloc
2023-08-20 22:54:32 +02:00
generate_rust_target.rs
x86: enable initial Rust support
2022-09-28 09:02:45 +02:00
get_abi.pl
scripts/get_abi: fix source path leak
2024-01-31 16:18:55 -08:00
get_dvb_firmware
…
get_feat.pl
scripts: get_feat.pl: use /usr/bin/env to find perl
2022-06-30 12:22:17 -06:00
get_maintainer.pl
get_maintainer: Honor mailmap for in file emails
2022-04-29 14:38:00 -07:00
gfp-translate
scripts: fix the gfp flags header path in gfp-translate
2023-06-19 13:19:32 -07:00
head-object-list.txt
powerpc/64: Rename entry_64.S to prom_entry_64.S
2023-06-15 14:04:19 +10:00
headerdep.pl
…
headers_install.sh
x86: Remove the arch_calc_vm_prot_bits() macro from the UAPI
2023-09-06 23:50:46 +02:00
insert-sys-cert.c
…
install.sh
kbuild: factor out the common installation code into scripts/install.sh
2022-05-11 21:45:53 +09:00
jobserver-exec
scripts: support GNU make 4.4 in jobserver-exec
2023-01-16 20:15:20 +09:00
kallsyms.c
scripts/kallsyms: Fix build failure by setting errno before calling getline()
2023-07-29 15:57:32 +09:00
Kbuild.include
kbuild: replace $(dot-target).tmp in filechk with $(tmp-target)
2023-01-22 23:43:33 +09:00
Kconfig.include
kbuild: Add -Wa,--fatal-warnings to as-instr invocation
2024-03-06 14:48:41 +00:00
kernel-doc
scripts: kernel-doc: fix macro handling in enums
2023-08-18 11:14:08 -06:00
ld-version.sh
…
leaking_addresses.pl
leaking_addresses: also skip canonical ftrace path
2023-03-29 06:52:08 -04:00
Lindent
…
link-vmlinux.sh
kbuild: Fix changing ELF file type for output of gen_btf for big endian
2024-02-23 09:25:02 +01:00
Makefile
rust: support running Rust documentation tests as KUnit ones
2023-07-19 09:32:53 -06:00
Makefile.asm-generic
kbuild: add kbuild-file macro
2022-11-22 23:40:02 +09:00
Makefile.build
kbuild: rust: avoid creating temporary files
2023-07-24 03:15:31 +09:00
Makefile.clang
Kbuild updates for v6.5
2023-07-01 09:24:31 -07:00
Makefile.clean
kbuild: make clean rule robust against too long argument error
2023-06-25 23:12:20 +09:00
Makefile.compiler
kbuild: Add -Wa,--fatal-warnings to as-instr invocation
2024-03-06 14:48:41 +00:00
Makefile.debug
Makefile.debug: support for -gz=zstd
2022-11-21 10:18:39 +09:00
Makefile.defconf
kbuild: Provide a version of merge_into_defconfig without override warnings
2023-02-13 20:18:28 +01:00
Makefile.dtbinst
kbuild: Support flat DTBs install
2023-06-21 07:51:08 -06:00
Makefile.extrawarn
kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1
2024-04-03 15:28:29 +02:00
Makefile.gcc-plugins
gcc-plugins: Undefine LATENT_ENTROPY_PLUGIN when plugin disabled for a file
2022-08-16 12:25:53 -07:00
Makefile.headersinst
…
Makefile.host
kbuild: rust: avoid creating temporary files
2023-07-24 03:15:31 +09:00
Makefile.kasan
kasan: remove hwasan-kernel-mem-intrinsic-prefix=1 for clang-14
2023-04-18 16:29:43 -07:00
Makefile.kcov
…
Makefile.kcsan
kcsan: Ignore GCC 11+ warnings about TSan runtime support
2021-12-09 16:42:27 -08:00
Makefile.kmsan
kmsan: add KMSAN runtime core
2022-10-03 14:03:19 -07:00
Makefile.lib
kbuild: Disallow DTB overlays to built from .dts named source files
2023-05-22 10:34:37 +09:00
Makefile.modfinal
btf, scripts: rust: drop is_rust_module.sh
2023-08-10 22:28:04 +02:00
Makefile.modinst
kbuild: Use CRC32 and a 1MiB dictionary for XZ compressed modules
2023-09-25 16:01:05 +09:00
Makefile.modpost
linux/export.h: make <linux/export.h> independent of CONFIG_MODULES
2023-07-25 00:59:32 +09:00
Makefile.package
kbuild: deb-pkg: support DEB_BUILD_OPTIONS=parallel=N in debian/rules
2023-08-29 22:29:35 +09:00
Makefile.randstruct
randstruct: Enable Clang support
2022-05-08 01:33:07 -07:00
Makefile.ubsan
ubsan: Tighten UBSAN_BOUNDS on GCC
2023-05-16 13:57:14 -07:00
Makefile.userprogs
…
Makefile.vmlinux
x86/retpoline: Make sure there are no unconverted return thunks due to KCSAN
2023-11-28 17:19:36 +00:00
Makefile.vmlinux_o
x86/srso: Fix unret validation dependencies
2023-11-20 11:58:52 +01:00
makelst
…
markup_oops.pl
…
min-tool-version.sh
rust: upgrade to Rust 1.73.0
2024-02-16 19:10:43 +01:00
misc-check
kbuild: make W=1 warn files that are tracked but ignored by git
2023-01-22 23:43:33 +09:00
mkcompile_h
Revert "kbuild: Make scripts/compile.h when sh != bash"
2022-09-29 04:40:15 +09:00
mksysmap
kallsyms: ignore ARMv4 thunks along with others
2024-02-23 09:24:59 +01:00
mkuboot.sh
…
module.lds.S
arm64: unwind: add asynchronous unwind tables to kernel and modules
2022-11-09 18:06:35 +00:00
modules-check.sh
kbuild: change module.order to list *.o instead of *.ko
2022-12-14 15:42:40 +09:00
nsdeps
scripts/nsdeps: adjust to the format change of *.mod files
2022-06-08 20:14:13 +09:00
objdiff
kbuild: clean .tmp_* pattern by make clean
2022-06-05 06:20:57 +09:00
objdump-func
scripts/objdump-func: Support multiple functions
2023-04-14 16:08:28 +02:00
orc_hash.sh
x86/unwind/orc: Add ELF section with ORC version identifier
2023-06-16 17:17:42 +02:00
pahole-flags.sh
bpf: Add --skip_encoding_btf_inconsistent_proto, --btf_gen_optimized to pahole flags for v1.25
2023-05-12 11:47:05 -07:00
pahole-version.sh
kbuild: Add CONFIG_PAHOLE_VERSION
2022-02-02 11:19:33 +01:00
parse-maintainers.pl
…
patch-kernel
…
profile2linkerlist.pl
…
prune-kernel
scripts/prune-kernel: Use kernel-install if available
2022-05-11 21:46:38 +09:00
recordmcount.c
recordmcount: Fix memory leaks in the uwrite function
2023-04-25 21:10:20 -04:00
recordmcount.h
…
recordmcount.pl
nds32: Remove the architecture
2022-03-07 13:54:59 +01:00
relocs_check.sh
powerpc: Move script to check relocations at compile time in scripts/
2023-04-19 07:46:31 -07:00
remove-stale-files
kbuild: rpm-pkg: rename binkernel.spec to kernel.spec
2023-07-25 00:59:33 +09:00
rust_is_available_bindgen_libclang.h
scripts: add rust_is_available.sh
2022-09-28 09:02:06 +02:00
rust_is_available_test.py
kbuild: rust_is_available: add test suite
2023-08-10 01:18:34 +02:00
rust_is_available.sh
kbuild: rust_is_available: check that output looks as expected
2023-08-10 01:18:34 +02:00
rustdoc_test_builder.rs
rust: support running Rust documentation tests as KUnit ones
2023-07-19 09:32:53 -06:00
rustdoc_test_gen.rs
rust: support running Rust documentation tests as KUnit ones
2023-07-19 09:32:53 -06:00
setlocalversion
scripts/setlocalversion: also consider annotated tags of the form vx.y.z-${file_localversion}
2023-08-08 01:08:54 +09:00
show_delta
…
sign-file.c
sign-file: Fix incorrect return values check
2023-12-20 17:01:49 +01:00
sorttable.c
LoongArch: extable: Add type and data fields
2022-12-14 08:36:11 +08:00
sorttable.h
x86,objtool: Split UNWIND_HINT_EMPTY in two
2023-03-23 23:18:58 +01:00
spdxcheck-test.sh
docs: move Linux logo into a new images folder
2022-06-01 09:32:45 -06:00
spdxcheck.py
scripts/spdxcheck: Put excluded files and directories into a separate file
2022-05-18 15:34:33 +02:00
spdxexclude
scripts/spdxcheck: Exclude top-level README
2022-05-18 15:35:42 +02:00
spelling.txt
scripts/spelling.txt: remove 'thead' as a typo
2023-07-27 13:07:04 -07:00
sphinx-pre-install
docs: sphinx-pre-install: don't require the RTD theme
2022-10-13 11:14:43 -06:00
split-man.pl
…
stackdelta
…
stackusage
…
subarch.include
LoongArch: Add build infrastructure
2022-06-03 20:09:27 +08:00
syscallhdr.sh
…
syscallnr.sh
…
syscalltbl.sh
…
tags.sh
Char/Misc and other driver subsystem updates for 6.5-rc1
2023-07-03 12:46:47 -07:00
test_fortify.sh
fortify: Update compile-time tests for Clang 14
2022-02-13 16:50:06 -08:00
tools-support-relr.sh
Makefile: use -z pack-relative-relocs
2023-04-17 11:23:06 +09:00
unifdef.c
…
ver_linux
…
xen-hypercalls.sh
…
xz_wrap.sh
…