* [PATCH v2] binfmt_elf_fdpic: return corresponding errcode if create_elf_fdpic_tables() fail
@ 2020-11-16 14:06 Zhihao Cheng
0 siblings, 0 replies; only message in thread
From: Zhihao Cheng @ 2020-11-16 14:06 UTC (permalink / raw)
To: viro; +Cc: linux-fsdevel, linux-kernel, linux-mm
Function load_elf_fdpic_binary() may return 0 to caller if
create_elf_fdpic_tables() fail, which will misslead caller
to continue running without handling errors.
Fixes: 1da177e4c3f41524e886 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
---
fs/binfmt_elf_fdpic.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index be4062b8ba75..6243abf3f8f3 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -434,8 +434,9 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm)
current->mm->start_stack = current->mm->start_brk + stack_size;
#endif
- if (create_elf_fdpic_tables(bprm, current->mm,
- &exec_params, &interp_params) < 0)
+ retval = create_elf_fdpic_tables(bprm, current->mm,
+ &exec_params, &interp_params);
+ if (retval < 0)
goto error;
kdebug("- start_code %lx", current->mm->start_code);
--
2.25.4
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