Josh Poimboeuf 9a73f085dc objtool: Fix another stack overflow in validate_branch() ...

The insn state is getting saved on the stack twice for each recursive
iteration.  No need for that, once is enough.

Fixes the following reported stack overflow:

  drivers/scsi/qla2xxx/qla_dbg.o: error: SIGSEGV: objtool stack overflow!
  Segmentation fault

Fixes: 70589843b3 ("objtool: Add option to trace function validation")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Closes: https://lore.kernel.org/90956545-2066-46e3-b547-10c884582eb0@app.fastmail.com
Link: https://patch.msgid.link/8b97f62d083457f3b0a29a424275f7957dd3372f.1772821683.git.jpoimboe@kernel.org
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>

2026-03-09 08:45:13 -07:00

..

arch

objtool: Handle Clang RSP musical chairs

2026-03-09 08:45:10 -07:00

Documentation

Revert "objtool: Warn on functions with ambiguous -ffunction-sections section names"

2025-11-21 10:04:10 +01:00

include/objtool

objtool: Fix ERROR_INSN() error message

2026-03-06 07:53:37 -08:00

.gitignore

objtool: Add Function to get the name of a CPU feature

2025-11-24 20:39:47 +01:00

Build

objtool: Add more robust signal error handling, detect and warn about stack overflows

2025-12-03 19:42:37 +01:00

builtin-check.c

objtool: Add wide output for disassembly

2025-11-24 20:40:48 +01:00

builtin-klp.c

objtool/klp: Add post-link subcommand to finalize livepatch modules

2025-10-14 14:50:18 -07:00

check.c

objtool: Fix another stack overflow in validate_branch()

2026-03-09 08:45:13 -07:00

disas.c

objtool: Print bfd_vma as unsigned long long on ia32-x86_64 cross build

2026-01-27 08:19:35 -08:00

elf.c

objtool: Fix data alignment in elf_add_data()

2026-03-06 07:53:36 -08:00

klp-diff.c

objtool/klp: Avoid NULL pointer dereference when printing code symbol name

2026-03-06 07:47:11 -08:00

klp-post-link.c

objtool/klp: Add post-link subcommand to finalize livepatch modules

2025-10-14 14:50:18 -07:00

Makefile

objtool: Use HOSTCFLAGS for HAVE_XXHASH test

2026-03-06 07:48:41 -08:00

noreturns.h

x86/smpboot: Mark native_play_dead() as __noreturn

2025-10-30 08:29:41 -07:00

objtool.c

objtool: Add more robust signal error handling, detect and warn about stack overflows

2025-12-03 19:42:37 +01:00

orc_dump.c

objtool: Add annotype() helper

2025-10-14 14:46:49 -07:00

orc_gen.c

objtool: Add annotype() helper

2025-10-14 14:46:49 -07:00

signal.c

objtool: Add more robust signal error handling, detect and warn about stack overflows

2025-12-03 19:42:37 +01:00

special.c

objtool: Provide access to feature and flags of group alternatives

2025-11-21 15:30:14 +01:00

sync-check.sh

objtool/klp: Introduce klp diff subcommand for diffing object files

2025-10-14 14:50:18 -07:00

trace.c

objtool: Improve tracing of alternative instructions

2025-11-21 15:30:11 +01:00

weak.c

objtool/klp: Introduce klp diff subcommand for diffing object files

2025-10-14 14:50:18 -07:00