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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: lily <floridsleeves@gmail.com>,
	"David S . Miller" <davem@davemloft.net>,
	Sasha Levin <sashal@kernel.org>,
	edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
	asml.silence@gmail.com, imagedong@tencent.com,
	luiz.von.dentz@intel.com, vasily.averin@linux.dev,
	jk@codeconstruct.com.au, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 13/16] net/core/skbuff: Check the return value of skb_copy_bits()
Date: Tue, 30 Aug 2022 13:23:14 -0400	[thread overview]
Message-ID: <20220830172317.581397-13-sashal@kernel.org> (raw)
In-Reply-To: <20220830172317.581397-1-sashal@kernel.org>

From: lily <floridsleeves@gmail.com>

[ Upstream commit c624c58e08b15105662b9ab9be23d14a6b945a49 ]

skb_copy_bits() could fail, which requires a check on the return
value.

Signed-off-by: Li Zhong <floridsleeves@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/skbuff.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 48b6438f2a3d9..548f1adc14284 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3986,9 +3986,8 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb,
 				SKB_GSO_CB(nskb)->csum_start =
 					skb_headroom(nskb) + doffset;
 			} else {
-				skb_copy_bits(head_skb, offset,
-					      skb_put(nskb, len),
-					      len);
+				if (skb_copy_bits(head_skb, offset, skb_put(nskb, len), len))
+					goto err;
 			}
 			continue;
 		}
-- 
2.35.1


  parent reply	other threads:[~2022-08-30 17:26 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-30 17:23 [PATCH AUTOSEL 5.10 01/16] firmware: dmi: Use the proper accessor for the version field Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 02/16] scsi: qla2xxx: Disable ATIO interrupt coalesce for quad port ISP27XX Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 03/16] scsi: megaraid_sas: Fix double kfree() Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 04/16] drm/gem: Fix GEM handle release errors Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 05/16] drm/amdgpu: Move psp_xgmi_terminate call from amdgpu_xgmi_remove_device to psp_hw_fini Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 06/16] drm/amdgpu: Check num_gfx_rings for gfx v9_0 rb setup Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 07/16] drm/radeon: add a force flush to delay work when radeon Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 08/16] parisc: ccio-dma: Handle kmalloc failure in ccio_init_resources() Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 09/16] parisc: Add runtime check to prevent PA2.0 kernels on PA1.x machines Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 10/16] arm64: cacheinfo: Fix incorrect assignment of signed error value to unsigned fw_level Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 11/16] arm64/signal: Raise limit on stack frames Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 12/16] fec: Restart PPS after link state change Sasha Levin
2022-08-30 17:23 ` Sasha Levin [this message]
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 14/16] fbdev: fb_pm2fb: Avoid potential divide by zero error Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 15/16] fbdev: chipsfb: Add missing pci_disable_device() in chipsfb_pci_init() Sasha Levin
2022-08-30 17:23 ` [PATCH AUTOSEL 5.10 16/16] drm/amdgpu: mmVM_L2_CNTL3 register not initialized correctly Sasha Levin

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