* [PATCH v1 1/1] bpf: Switch to krealloc_array()
@ 2024-04-29 12:00 Andy Shevchenko
2024-04-29 17:14 ` Yonghong Song
2024-04-29 23:20 ` patchwork-bot+netdevbpf
0 siblings, 2 replies; 3+ messages in thread
From: Andy Shevchenko @ 2024-04-29 12:00 UTC (permalink / raw
To: Alexei Starovoitov, bpf, linux-kernel
Cc: Daniel Borkmann, John Fastabend, Andrii Nakryiko,
Martin KaFai Lau, Eduard Zingerman, Song Liu, Yonghong Song,
KP Singh, Stanislav Fomichev, Hao Luo, Jiri Olsa, Andy Shevchenko
Let the krealloc_array() copy the original data and
check for a multiplication overflow.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
kernel/bpf/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 466c2deeecff..778775bdbb2e 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -849,7 +849,7 @@ int bpf_jit_add_poke_descriptor(struct bpf_prog *prog,
return -EINVAL;
}
- tab = krealloc(tab, size * sizeof(*poke), GFP_KERNEL);
+ tab = krealloc_array(tab, size, sizeof(*poke), GFP_KERNEL);
if (!tab)
return -ENOMEM;
--
2.43.0.rc1.1336.g36b5255a03ac
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v1 1/1] bpf: Switch to krealloc_array()
2024-04-29 12:00 [PATCH v1 1/1] bpf: Switch to krealloc_array() Andy Shevchenko
@ 2024-04-29 17:14 ` Yonghong Song
2024-04-29 23:20 ` patchwork-bot+netdevbpf
1 sibling, 0 replies; 3+ messages in thread
From: Yonghong Song @ 2024-04-29 17:14 UTC (permalink / raw
To: Andy Shevchenko, Alexei Starovoitov, bpf, linux-kernel
Cc: Daniel Borkmann, John Fastabend, Andrii Nakryiko,
Martin KaFai Lau, Eduard Zingerman, Song Liu, KP Singh,
Stanislav Fomichev, Hao Luo, Jiri Olsa
On 4/29/24 5:00 AM, Andy Shevchenko wrote:
> Let the krealloc_array() copy the original data and
> check for a multiplication overflow.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v1 1/1] bpf: Switch to krealloc_array()
2024-04-29 12:00 [PATCH v1 1/1] bpf: Switch to krealloc_array() Andy Shevchenko
2024-04-29 17:14 ` Yonghong Song
@ 2024-04-29 23:20 ` patchwork-bot+netdevbpf
1 sibling, 0 replies; 3+ messages in thread
From: patchwork-bot+netdevbpf @ 2024-04-29 23:20 UTC (permalink / raw
To: Andy Shevchenko
Cc: ast, bpf, linux-kernel, daniel, john.fastabend, andrii,
martin.lau, eddyz87, song, yonghong.song, kpsingh, sdf, haoluo,
jolsa
Hello:
This patch was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <andrii@kernel.org>:
On Mon, 29 Apr 2024 15:00:05 +0300 you wrote:
> Let the krealloc_array() copy the original data and
> check for a multiplication overflow.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
> kernel/bpf/core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Here is the summary with links:
- [v1,1/1] bpf: Switch to krealloc_array()
https://git.kernel.org/bpf/bpf-next/c/a3034872cd90
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2024-04-29 12:00 [PATCH v1 1/1] bpf: Switch to krealloc_array() Andy Shevchenko
2024-04-29 17:14 ` Yonghong Song
2024-04-29 23:20 ` patchwork-bot+netdevbpf
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