2017-06-20 04:57:00

by Stephen Rothwell

[permalink] [raw]
Subject: linux-next: build failure after merge of the kspp tree

Hi all,

After merging the kspp tree, today's linux-next build (x86_64
allmodconfig) failed like this:

security/apparmor/file.c: In function 'aa_path_link':
security/apparmor/file.c:475:23: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
struct path link = { new_dir->mnt, new_dentry };
^
security/apparmor/file.c:475:23: note: (near initialization for 'link')
security/apparmor/file.c:475:37: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
struct path link = { new_dir->mnt, new_dentry };
^
security/apparmor/file.c:475:37: note: (near initialization for 'link')
security/apparmor/file.c:476:25: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
struct path target = { new_dir->mnt, old_dentry };
^
security/apparmor/file.c:476:25: note: (near initialization for 'target')
security/apparmor/file.c:476:39: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
struct path target = { new_dir->mnt, old_dentry };
^
security/apparmor/file.c:476:39: note: (near initialization for 'target')

Caused by commit

1a12979f61e4 ("randstruct: Mark various structs for randomization")

interacting with commit

8014370f1257 ("apparmor: move path_link mediation to using labels")

from the security tree.

I added the following merge fix patch for today:

From: Stephen Rothwell <[email protected]>
Date: Tue, 20 Jun 2017 14:50:36 +1000
Subject: [PATCH] apparmor: put back designators in struct initialisers

Fixes: 8014370f1257 ("apparmor: move path_link mediation to using labels")
Signed-off-by: Stephen Rothwell <[email protected]>
---
security/apparmor/file.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/apparmor/file.c b/security/apparmor/file.c
index b6e8e5b11e05..3382518b87fa 100644
--- a/security/apparmor/file.c
+++ b/security/apparmor/file.c
@@ -472,8 +472,8 @@ static int profile_path_link(struct aa_profile *profile,
int aa_path_link(struct aa_label *label, struct dentry *old_dentry,
const struct path *new_dir, struct dentry *new_dentry)
{
- struct path link = { new_dir->mnt, new_dentry };
- struct path target = { new_dir->mnt, old_dentry };
+ struct path link = { .mnt = new_dir->mnt, .dentry = new_dentry };
+ struct path target = { .mnt = new_dir->mnt, .dentry = old_dentry };
struct path_cond cond = {
d_backing_inode(old_dentry)->i_uid,
d_backing_inode(old_dentry)->i_mode
--
2.11.0

--
Cheers,
Stephen Rothwell


2017-06-20 05:39:40

by Kees Cook

[permalink] [raw]
Subject: Re: linux-next: build failure after merge of the kspp tree

On Mon, Jun 19, 2017 at 9:56 PM, Stephen Rothwell <[email protected]> wrote:
> Hi all,
>
> After merging the kspp tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
>
> security/apparmor/file.c: In function 'aa_path_link':
> security/apparmor/file.c:475:23: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
> struct path link = { new_dir->mnt, new_dentry };
> ^
> security/apparmor/file.c:475:23: note: (near initialization for 'link')
> security/apparmor/file.c:475:37: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
> struct path link = { new_dir->mnt, new_dentry };
> ^
> security/apparmor/file.c:475:37: note: (near initialization for 'link')
> security/apparmor/file.c:476:25: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
> struct path target = { new_dir->mnt, old_dentry };
> ^
> security/apparmor/file.c:476:25: note: (near initialization for 'target')
> security/apparmor/file.c:476:39: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
> struct path target = { new_dir->mnt, old_dentry };
> ^
> security/apparmor/file.c:476:39: note: (near initialization for 'target')
>
> Caused by commit
>
> 1a12979f61e4 ("randstruct: Mark various structs for randomization")
>
> interacting with commit
>
> 8014370f1257 ("apparmor: move path_link mediation to using labels")
>
> from the security tree.
>
> I added the following merge fix patch for today:
>
> From: Stephen Rothwell <[email protected]>
> Date: Tue, 20 Jun 2017 14:50:36 +1000
> Subject: [PATCH] apparmor: put back designators in struct initialisers
>
> Fixes: 8014370f1257 ("apparmor: move path_link mediation to using labels")
> Signed-off-by: Stephen Rothwell <[email protected]>
> ---
> security/apparmor/file.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/security/apparmor/file.c b/security/apparmor/file.c
> index b6e8e5b11e05..3382518b87fa 100644
> --- a/security/apparmor/file.c
> +++ b/security/apparmor/file.c
> @@ -472,8 +472,8 @@ static int profile_path_link(struct aa_profile *profile,
> int aa_path_link(struct aa_label *label, struct dentry *old_dentry,
> const struct path *new_dir, struct dentry *new_dentry)
> {
> - struct path link = { new_dir->mnt, new_dentry };
> - struct path target = { new_dir->mnt, old_dentry };
> + struct path link = { .mnt = new_dir->mnt, .dentry = new_dentry };
> + struct path target = { .mnt = new_dir->mnt, .dentry = old_dentry };
> struct path_cond cond = {
> d_backing_inode(old_dentry)->i_uid,
> d_backing_inode(old_dentry)->i_mode
> --
> 2.11.0

Thanks for the fix! That looks correct to me. It seems the refactoring
in 8014370f1257 ("apparmor: move path_link mediation to using labels")
didn't take 8486adf0d755 ("apparmor: use designated initializers")
into account. John, if this looks okay, can you Ack it for James to
carry in security-next?

-Kees

--
Kees Cook
Pixel Security

2017-06-20 05:39:59

by John Johansen

[permalink] [raw]
Subject: Re: linux-next: build failure after merge of the kspp tree

On 06/19/2017 09:56 PM, Stephen Rothwell wrote:
> Hi all,
>
> After merging the kspp tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
>
> security/apparmor/file.c: In function 'aa_path_link':
> security/apparmor/file.c:475:23: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
> struct path link = { new_dir->mnt, new_dentry };
> ^
> security/apparmor/file.c:475:23: note: (near initialization for 'link')
> security/apparmor/file.c:475:37: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
> struct path link = { new_dir->mnt, new_dentry };
> ^
> security/apparmor/file.c:475:37: note: (near initialization for 'link')
> security/apparmor/file.c:476:25: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
> struct path target = { new_dir->mnt, old_dentry };
> ^
> security/apparmor/file.c:476:25: note: (near initialization for 'target')
> security/apparmor/file.c:476:39: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
> struct path target = { new_dir->mnt, old_dentry };
> ^
> security/apparmor/file.c:476:39: note: (near initialization for 'target')
>
> Caused by commit
>
> 1a12979f61e4 ("randstruct: Mark various structs for randomization")
>
> interacting with commit
>
> 8014370f1257 ("apparmor: move path_link mediation to using labels")
>
> from the security tree.
>
> I added the following merge fix patch for today:
>
> From: Stephen Rothwell <[email protected]>
> Date: Tue, 20 Jun 2017 14:50:36 +1000
> Subject: [PATCH] apparmor: put back designators in struct initialisers
>
> Fixes: 8014370f1257 ("apparmor: move path_link mediation to using labels")
> Signed-off-by: Stephen Rothwell <[email protected]>
Acked-by: John Johansen <[email protected]>

> ---
> security/apparmor/file.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/security/apparmor/file.c b/security/apparmor/file.c
> index b6e8e5b11e05..3382518b87fa 100644
> --- a/security/apparmor/file.c
> +++ b/security/apparmor/file.c
> @@ -472,8 +472,8 @@ static int profile_path_link(struct aa_profile *profile,
> int aa_path_link(struct aa_label *label, struct dentry *old_dentry,
> const struct path *new_dir, struct dentry *new_dentry)
> {
> - struct path link = { new_dir->mnt, new_dentry };
> - struct path target = { new_dir->mnt, old_dentry };
> + struct path link = { .mnt = new_dir->mnt, .dentry = new_dentry };
> + struct path target = { .mnt = new_dir->mnt, .dentry = old_dentry };
> struct path_cond cond = {
> d_backing_inode(old_dentry)->i_uid,
> d_backing_inode(old_dentry)->i_mode
>

2017-06-20 05:42:14

by John Johansen

[permalink] [raw]
Subject: Re: linux-next: build failure after merge of the kspp tree

On 06/19/2017 10:39 PM, Kees Cook wrote:
> On Mon, Jun 19, 2017 at 9:56 PM, Stephen Rothwell <[email protected]> wrote:
>> Hi all,
>>
>> After merging the kspp tree, today's linux-next build (x86_64
>> allmodconfig) failed like this:
>>
>> security/apparmor/file.c: In function 'aa_path_link':
>> security/apparmor/file.c:475:23: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
>> struct path link = { new_dir->mnt, new_dentry };
>> ^
>> security/apparmor/file.c:475:23: note: (near initialization for 'link')
>> security/apparmor/file.c:475:37: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
>> struct path link = { new_dir->mnt, new_dentry };
>> ^
>> security/apparmor/file.c:475:37: note: (near initialization for 'link')
>> security/apparmor/file.c:476:25: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
>> struct path target = { new_dir->mnt, old_dentry };
>> ^
>> security/apparmor/file.c:476:25: note: (near initialization for 'target')
>> security/apparmor/file.c:476:39: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
>> struct path target = { new_dir->mnt, old_dentry };
>> ^
>> security/apparmor/file.c:476:39: note: (near initialization for 'target')
>>
>> Caused by commit
>>
>> 1a12979f61e4 ("randstruct: Mark various structs for randomization")
>>
>> interacting with commit
>>
>> 8014370f1257 ("apparmor: move path_link mediation to using labels")
>>
>> from the security tree.
>>
>> I added the following merge fix patch for today:
>>
>> From: Stephen Rothwell <[email protected]>
>> Date: Tue, 20 Jun 2017 14:50:36 +1000
>> Subject: [PATCH] apparmor: put back designators in struct initialisers
>>
>> Fixes: 8014370f1257 ("apparmor: move path_link mediation to using labels")
>> Signed-off-by: Stephen Rothwell <[email protected]>
>> ---
>> security/apparmor/file.c | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/security/apparmor/file.c b/security/apparmor/file.c
>> index b6e8e5b11e05..3382518b87fa 100644
>> --- a/security/apparmor/file.c
>> +++ b/security/apparmor/file.c
>> @@ -472,8 +472,8 @@ static int profile_path_link(struct aa_profile *profile,
>> int aa_path_link(struct aa_label *label, struct dentry *old_dentry,
>> const struct path *new_dir, struct dentry *new_dentry)
>> {
>> - struct path link = { new_dir->mnt, new_dentry };
>> - struct path target = { new_dir->mnt, old_dentry };
>> + struct path link = { .mnt = new_dir->mnt, .dentry = new_dentry };
>> + struct path target = { .mnt = new_dir->mnt, .dentry = old_dentry };
>> struct path_cond cond = {
>> d_backing_inode(old_dentry)->i_uid,
>> d_backing_inode(old_dentry)->i_mode
>> --
>> 2.11.0
>
> Thanks for the fix! That looks correct to me. It seems the refactoring
> in 8014370f1257 ("apparmor: move path_link mediation to using labels")
> didn't take 8486adf0d755 ("apparmor: use designated initializers")
> into account. John, if this looks okay, can you Ack it for James to
> carry in security-next?
>
yep, already done. Sorry I missed that one :(

2017-06-26 18:19:22

by Kees Cook

[permalink] [raw]
Subject: Re: linux-next: build failure after merge of the kspp tree

On Mon, Jun 19, 2017 at 10:39 PM, John Johansen
<[email protected]> wrote:
> On 06/19/2017 09:56 PM, Stephen Rothwell wrote:
>> Hi all,
>>
>> After merging the kspp tree, today's linux-next build (x86_64
>> allmodconfig) failed like this:
>>
>> security/apparmor/file.c: In function 'aa_path_link':
>> security/apparmor/file.c:475:23: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
>> struct path link = { new_dir->mnt, new_dentry };
>> ^
>> security/apparmor/file.c:475:23: note: (near initialization for 'link')
>> security/apparmor/file.c:475:37: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
>> struct path link = { new_dir->mnt, new_dentry };
>> ^
>> security/apparmor/file.c:475:37: note: (near initialization for 'link')
>> security/apparmor/file.c:476:25: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
>> struct path target = { new_dir->mnt, old_dentry };
>> ^
>> security/apparmor/file.c:476:25: note: (near initialization for 'target')
>> security/apparmor/file.c:476:39: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
>> struct path target = { new_dir->mnt, old_dentry };
>> ^
>> security/apparmor/file.c:476:39: note: (near initialization for 'target')
>>
>> Caused by commit
>>
>> 1a12979f61e4 ("randstruct: Mark various structs for randomization")
>>
>> interacting with commit
>>
>> 8014370f1257 ("apparmor: move path_link mediation to using labels")
>>
>> from the security tree.
>>
>> I added the following merge fix patch for today:
>>
>> From: Stephen Rothwell <[email protected]>
>> Date: Tue, 20 Jun 2017 14:50:36 +1000
>> Subject: [PATCH] apparmor: put back designators in struct initialisers
>>
>> Fixes: 8014370f1257 ("apparmor: move path_link mediation to using labels")
>> Signed-off-by: Stephen Rothwell <[email protected]>
> Acked-by: John Johansen <[email protected]>

Hi James,

Just a ping; this needs to get into -next to avoid build errors.
Please consider it also:

Acked-by: Kees Cook <[email protected]>

Thanks!

-Kees

--
Kees Cook
Pixel Security

2017-06-27 03:33:55

by James Morris

[permalink] [raw]
Subject: Re: linux-next: build failure after merge of the kspp tree

On Mon, 26 Jun 2017, Kees Cook wrote:

> >> Fixes: 8014370f1257 ("apparmor: move path_link mediation to using labels")
> >> Signed-off-by: Stephen Rothwell <[email protected]>
> > Acked-by: John Johansen <[email protected]>
>
> Hi James,
>
> Just a ping; this needs to get into -next to avoid build errors.

Surely Linus will resolve this when he pulls the trees in?


--
James Morris
<[email protected]>

2017-06-27 22:16:50

by Kees Cook

[permalink] [raw]
Subject: Re: linux-next: build failure after merge of the kspp tree

On Mon, Jun 26, 2017 at 8:33 PM, James Morris <[email protected]> wrote:
> On Mon, 26 Jun 2017, Kees Cook wrote:
>
>> >> Fixes: 8014370f1257 ("apparmor: move path_link mediation to using labels")
>> >> Signed-off-by: Stephen Rothwell <[email protected]>
>> > Acked-by: John Johansen <[email protected]>
>>
>> Hi James,
>>
>> Just a ping; this needs to get into -next to avoid build errors.
>
> Surely Linus will resolve this when he pulls the trees in?

It's not a merge glitch, it's a refactoring glitch. John's commit in
security-next ("apparmor: move path_link mediation to using labels")
undid an earlier commit 8486adf0d755 ("apparmor: use designated
initializers") from v4.11. This patch is needed for security-next.

-Kees

--
Kees Cook
Pixel Security

2017-06-28 05:48:40

by James Morris

[permalink] [raw]
Subject: Re: linux-next: build failure after merge of the kspp tree

On Tue, 27 Jun 2017, Kees Cook wrote:

> On Mon, Jun 26, 2017 at 8:33 PM, James Morris <[email protected]> wrote:
> > On Mon, 26 Jun 2017, Kees Cook wrote:
> >
> >> >> Fixes: 8014370f1257 ("apparmor: move path_link mediation to using labels")
> >> >> Signed-off-by: Stephen Rothwell <[email protected]>
> >> > Acked-by: John Johansen <[email protected]>
> >>
> >> Hi James,
> >>
> >> Just a ping; this needs to get into -next to avoid build errors.
> >
> > Surely Linus will resolve this when he pulls the trees in?
>
> It's not a merge glitch, it's a refactoring glitch. John's commit in
> security-next ("apparmor: move path_link mediation to using labels")
> undid an earlier commit 8486adf0d755 ("apparmor: use designated
> initializers") from v4.11. This patch is needed for security-next.
>

Thanks.

Applied to
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next


--
James Morris
<[email protected]>