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CVE-2025-68302— net: sxgbe: fix potential NULL dereference in sxgbe_rx()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于空指针取消引用，可能导致崩溃。

CVSS 7.5 · High EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 1edb9ca69e8a7988900fc0283e10550b5592164d< ac171c3c755499c9f87fe30b920602255f8b5648 affected
1edb9ca69e8a7988900fc0283e10550b5592164d< 18ef3ad1bb57dcf1a9ee61736039aedccf670b21 affected
1edb9ca69e8a7988900fc0283e10550b5592164d< 46e5332126596a2ca791140feab18ce1fc1a3c86 affected
1edb9ca69e8a7988900fc0283e10550b5592164d< 7fd789d6ea4915034eb6bcb72f6883c8151083e5 affected
1edb9ca69e8a7988900fc0283e10550b5592164d< 45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc affected
1edb9ca69e8a7988900fc0283e10550b5592164d< 88f46c0be77bfe45830ac33102c75be7c34ac3f3 affected
1edb9ca69e8a7988900fc0283e10550b5592164d< f5bce28f6b9125502abec4a67d68eabcd24b3b17 affected
3.15 affected
… +8 more rows
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I. Basic Information for CVE-2025-68302

Vulnerability Information
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Vulnerability Title
net: sxgbe: fix potential NULL dereference in sxgbe_rx()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: sxgbe: fix potential NULL dereference in sxgbe_rx() Currently, when skb is null, the driver prints an error and then dereferences skb on the next line. To fix this, let's add a 'break' after the error message to switch to sxgbe_rx_refill(), which is similar to the approach taken by the other drivers in this particular case, e.g. calxeda with xgmac_rx(). Found during a code review.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于空指针取消引用，可能导致崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1edb9ca69e8a7988900fc0283e10550b5592164d ~ ac171c3c755499c9f87fe30b920602255f8b5648 -
Linux Linux 3.15 -

II. Public POCs for CVE-2025-68302

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III. Intelligence Information for CVE-2025-68302

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Other References for CVE-2025-68302 (7)

Same Patch Batch · Linux · 2025-12-16 · 157 CVEs total

CVE-2025-68192 9.8 CRITICAL net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup
CVE-2025-68263 9.8 CRITICAL ksmbd: ipc: fix use-after-free in ipc_msg_send_request
CVE-2025-68315 9.8 CRITICAL f2fs: fix to detect potential corrupted nid in free_nid_list
CVE-2025-68285 9.8 CRITICAL libceph: fix potential use-after-free in have_mon_and_osd_map()
CVE-2025-68284 9.8 CRITICAL libceph: prevent potential out-of-bounds writes in handle_auth_session_key()
CVE-2025-68301 9.8 CRITICAL net: atlantic: fix fragment overflow handling in RX path
CVE-2025-40350 9.8 CRITICAL net/mlx5e: RX, Fix generating skb from non-linear xdp_buff for striding RQ
CVE-2025-68304 8.8 HIGH Bluetooth: hci_core: lookup hci_conn on RX path on protocol side
CVE-2025-68255 8.8 HIGH staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing
CVE-2025-68256 8.8 HIGH staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser
CVE-2025-68226 8.8 HIGH smb: client: fix incomplete backport in cfids_invalidation_worker()
CVE-2025-40362 8.8 HIGH ceph: fix multifs mds auth caps issue
CVE-2025-68314 8.8 HIGH drm/msm: make sure last_fence is always updated
CVE-2025-68250 8.2 HIGH hung_task: fix warnings caused by unaligned lock pointers
CVE-2025-68171 7.8 HIGH x86/fpu: Ensure XFD state on signal delivery
CVE-2025-68175 7.8 HIGH media: nxp: imx8-isi: Fix streaming cleanup on release
CVE-2025-68179 7.8 HIGH s390: Disable ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
CVE-2025-68260 7.8 HIGH rust_binder: fix race condition on death_list
CVE-2025-68183 7.8 HIGH ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr
CVE-2025-68189 7.8 HIGH drm/msm: Fix GEM free for imported dma-bufs

Showing top 20 of 157 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-68302

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