The patch titled
fs/binfmt_em86.c: fix resource leaks
has been removed from the -mm tree. Its filename was
fs-binfmt_em86c-fix-resource-leaks.patch
This patch was dropped because it was nacked
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: fs/binfmt_em86.c: fix resource leaks
From: WANG Cong <xiyou.wangcong@xxxxxxxxx>
->load_binary()'s caller only frees resources which ->load_binary() applied
when it succeeded, so ->load_binary() itself should free the resources on
failure.
Signed-off-by: WANG Cong <wangcong@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/binfmt_em86.c | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
diff -puN fs/binfmt_em86.c~fs-binfmt_em86c-fix-resource-leaks fs/binfmt_em86.c
--- a/fs/binfmt_em86.c~fs-binfmt_em86c-fix-resource-leaks
+++ a/fs/binfmt_em86.c
@@ -69,11 +69,13 @@ static int load_em86(struct linux_binprm
bprm->argc++;
if (i_arg) {
retval = copy_strings_kernel(1, &i_arg, bprm);
- if (retval < 0) return retval;
+ if (retval < 0)
+ goto out;
bprm->argc++;
}
retval = copy_strings_kernel(1, &i_name, bprm);
- if (retval < 0) return retval;
+ if (retval < 0)
+ goto out;
bprm->argc++;
/*
@@ -82,16 +84,27 @@ static int load_em86(struct linux_binprm
* space, and we don't need to copy it.
*/
file = open_exec(interp);
- if (IS_ERR(file))
- return PTR_ERR(file);
+ if (IS_ERR(file)) {
+ retval = PTR_ERR(file);
+ goto out;
+ }
bprm->file = file;
retval = prepare_binprm(bprm);
- if (retval < 0)
- return retval;
+ if (retval < 0) {
+ if (bprm->file) {
+ allow_write_access(bprm->file);
+ fput(bprm->file);
+ }
+ goto out;
+ }
return search_binary_handler(bprm, regs);
+
+out:
+ free_arg_pages(bprm);
+ return retval;
}
static struct linux_binfmt em86_format = {
_
Patches currently in -mm which might be from xiyou.wangcong@xxxxxxxxx are
origin.patch
uml-redo-host-capability-detection-and-disabling.patch
uml-style-fixes.patch
uml-hppfs-fixes.patch
uml-move-hppfs_kernc-to-hppfsc.patch
uml-tidy-ptrace-interface.patch
uml-fix-errno-return.patch
uml-fix-build-when-slob-is-enabled.patch
uml-remove-unused-header.patch
uml-fix-bad-ntp-interaction-with-clock.patch
uml-use-__spin_lock_unlocked.patch
uml-fix-config_raw-dependencies.patch
uml-use-div_round_up.patch
uml-use-page_size-in-linker-scripts.patch
uml-physical-memory-shouldnt-include-initial-stack.patch
fs-binfmt_elfc-fix-a-wrong-free.patch
cpumask-remove-bitmap_scnprintf_len-and-cpumask_scnprintf_len.patch
arch-um-kernel-irqc-clean-up-some-functions.patch
arch-um-kernel-memc-remove-arch_validate.patch
uml-make-several-more-things-static.patch
fs-binfmt_em86c-fix-resource-leaks.patch
fs-binfmt_miscc-fix-resource-leaks.patch
fs-execc-fix-wrong-return-value-of-prepare_binprm.patch
fs-binfmt_elfc-fix-wrong-return-values.patch
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