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linux/tools/objtool
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Josh Poimboeuf 4ab980b5c3 objtool, panic: Disable SMAP in __stack_chk_fail() 
[ Upstream commit 72c774aa9d ]

__stack_chk_fail() can be called from uaccess-enabled code.  Make sure
uaccess gets disabled before calling panic().

Fixes the following warning:

  kernel/trace/trace_branch.o: error: objtool: ftrace_likely_update+0x1ea: call to __stack_chk_fail() with UACCESS enabled

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/a3e97e0119e1b04c725a8aa05f7bc83d98e657eb.1742852847.git.jpoimboe@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-05-02 07:50:55 +02:00
..
arch x86/cpu: Rename original retbleed methods 2023-08-16 21:47:53 +02:00
Documentation objtool: Move noreturn function list to separate file 2023-05-16 06:31:55 -07:00
include/objtool objtool/x86: Fix SRSO mess 2023-08-16 09:39:16 +02:00
.gitignore objtool: Install libsubcmd in build 2023-01-30 16:27:46 -08:00
Build objtool: Install libsubcmd in build 2023-01-30 16:27:46 -08:00
builtin-check.c objtool: Add verbose option for disassembling affected functions 2023-05-16 06:31:51 -07:00
check.c objtool, panic: Disable SMAP in __stack_chk_fail() 2025-05-02 07:50:55 +02:00
elf.c objtool: initialize all of struct elf 2023-07-10 09:52:28 +02:00
Makefile objtool: Fix HOSTCC flag usage 2023-02-01 09:15:18 -08:00
noreturns.h cred: get rid of CONFIG_DEBUG_CREDENTIALS 2023-12-20 17:01:51 +01:00
objtool.c objtool: Propagate early errors 2023-11-20 11:58:52 +01:00
orc_dump.c x86,objtool: Split UNWIND_HINT_EMPTY in two 2023-03-23 23:18:58 +01:00
orc_gen.c objtool: Add elf_create_section_pair() 2023-06-07 10:03:17 -07:00
special.c objtool: Get rid of reloc->addend 2023-06-07 10:03:23 -07:00
sync-check.sh objtool: Add objtool_types.h 2023-03-23 23:18:56 +01:00
weak.c objtool: Ditch subcommands 2022-04-22 12:32:01 +02:00