* [PATCH] bpf: put file handler if no storage found
@ 2021-01-21 2:08 Pan Bian
2021-01-22 22:20 ` patchwork-bot+netdevbpf
0 siblings, 1 reply; 4+ messages in thread
From: Pan Bian @ 2021-01-21 2:08 UTC (permalink / raw)
To: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
KP Singh
Cc: netdev, bpf, linux-kernel, Pan Bian
Put file f if inode_storage_ptr() returns NULL.
Fixes: 8ea636848aca ("bpf: Implement bpf_local_storage for inodes")
Acked-by: KP Singh <kpsingh@kernel.org>
Signed-off-by: Pan Bian <bianpan2016@163.com>
---
kernel/bpf/bpf_inode_storage.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/kernel/bpf/bpf_inode_storage.c b/kernel/bpf/bpf_inode_storage.c
index 6edff97ad594..089d5071d4fc 100644
--- a/kernel/bpf/bpf_inode_storage.c
+++ b/kernel/bpf/bpf_inode_storage.c
@@ -125,8 +125,12 @@ static int bpf_fd_inode_storage_update_elem(struct bpf_map *map, void *key,
fd = *(int *)key;
f = fget_raw(fd);
- if (!f || !inode_storage_ptr(f->f_inode))
+ if (!f)
+ return -EBADF;
+ if (!inode_storage_ptr(f->f_inode)) {
+ fput(f);
return -EBADF;
+ }
sdata = bpf_local_storage_update(f->f_inode,
(struct bpf_local_storage_map *)map,
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] bpf: put file handler if no storage found
2021-01-21 2:08 [PATCH] bpf: put file handler if no storage found Pan Bian
@ 2021-01-22 22:20 ` patchwork-bot+netdevbpf
0 siblings, 0 replies; 4+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-01-22 22:20 UTC (permalink / raw)
To: Pan Bian
Cc: ast, daniel, andrii, kafai, songliubraving, yhs, john.fastabend,
kpsingh, netdev, bpf, linux-kernel
Hello:
This patch was applied to bpf/bpf.git (refs/heads/master):
On Wed, 20 Jan 2021 18:08:56 -0800 you wrote:
> Put file f if inode_storage_ptr() returns NULL.
>
> Fixes: 8ea636848aca ("bpf: Implement bpf_local_storage for inodes")
> Acked-by: KP Singh <kpsingh@kernel.org>
> Signed-off-by: Pan Bian <bianpan2016@163.com>
> ---
> kernel/bpf/bpf_inode_storage.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
Here is the summary with links:
- bpf: put file handler if no storage found
https://git.kernel.org/bpf/bpf/c/524db191d2f5
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] bpf: put file handler if no storage found
2021-01-20 19:23 ` Alexei Starovoitov
@ 2021-01-20 21:10 ` KP Singh
0 siblings, 0 replies; 4+ messages in thread
From: KP Singh @ 2021-01-20 21:10 UTC (permalink / raw)
To: Alexei Starovoitov
Cc: Pan Bian, Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
Network Development, bpf, LKML
On Wed, Jan 20, 2021 at 8:23 PM Alexei Starovoitov
<alexei.starovoitov@gmail.com> wrote:
>
> On Tue, Jan 19, 2021 at 4:03 AM Pan Bian <bianpan2016@163.com> wrote:
> >
> > Put file f if inode_storage_ptr() returns NULL.
> >
> > Signed-off-by: Pan Bian <bianpan2016@163.com>
Thanks for fixing this! (You can add my ack with the fixes tag when
you resubmit)
Fixes: 8ea636848aca ("bpf: Implement bpf_local_storage for inodes")
Acked-by: KP Singh <kpsingh@kernel.org>
> > ---
> > kernel/bpf/bpf_inode_storage.c | 6 +++++-
> > 1 file changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/kernel/bpf/bpf_inode_storage.c b/kernel/bpf/bpf_inode_storage.c
> > index 6edff97ad594..089d5071d4fc 100644
> > --- a/kernel/bpf/bpf_inode_storage.c
> > +++ b/kernel/bpf/bpf_inode_storage.c
> > @@ -125,8 +125,12 @@ static int bpf_fd_inode_storage_update_elem(struct bpf_map *map, void *key,
> >
> > fd = *(int *)key;
> > f = fget_raw(fd);
> > - if (!f || !inode_storage_ptr(f->f_inode))
> > + if (!f)
> > + return -EBADF;
> > + if (!inode_storage_ptr(f->f_inode)) {
> > + fput(f);
> > return -EBADF;
> > + }
>
> Good catch.
> Somehow the patch is not in patchwork.
> Could you please resubmit with Fixes tag and reduce cc list?
> I guess it's hitting some spam filters in vger.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] bpf: put file handler if no storage found
[not found] <20210119114624.60400-1-bianpan2016@163.com>
@ 2021-01-20 19:23 ` Alexei Starovoitov
2021-01-20 21:10 ` KP Singh
0 siblings, 1 reply; 4+ messages in thread
From: Alexei Starovoitov @ 2021-01-20 19:23 UTC (permalink / raw)
To: Pan Bian
Cc: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Network Development, bpf, LKML
On Tue, Jan 19, 2021 at 4:03 AM Pan Bian <bianpan2016@163.com> wrote:
>
> Put file f if inode_storage_ptr() returns NULL.
>
> Signed-off-by: Pan Bian <bianpan2016@163.com>
> ---
> kernel/bpf/bpf_inode_storage.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/kernel/bpf/bpf_inode_storage.c b/kernel/bpf/bpf_inode_storage.c
> index 6edff97ad594..089d5071d4fc 100644
> --- a/kernel/bpf/bpf_inode_storage.c
> +++ b/kernel/bpf/bpf_inode_storage.c
> @@ -125,8 +125,12 @@ static int bpf_fd_inode_storage_update_elem(struct bpf_map *map, void *key,
>
> fd = *(int *)key;
> f = fget_raw(fd);
> - if (!f || !inode_storage_ptr(f->f_inode))
> + if (!f)
> + return -EBADF;
> + if (!inode_storage_ptr(f->f_inode)) {
> + fput(f);
> return -EBADF;
> + }
Good catch.
Somehow the patch is not in patchwork.
Could you please resubmit with Fixes tag and reduce cc list?
I guess it's hitting some spam filters in vger.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2021-01-21 2:08 [PATCH] bpf: put file handler if no storage found Pan Bian
2021-01-22 22:20 ` patchwork-bot+netdevbpf
[not found] <20210119114624.60400-1-bianpan2016@163.com>
2021-01-20 19:23 ` Alexei Starovoitov
2021-01-20 21:10 ` KP Singh
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