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CVE-2023-53716— net: fix skb leak in __skb_tstamp_tx()

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skb_orphan_frags_rx失败时未释放克隆的skb，可能导致内存泄漏。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1498 · Network Denial of Service

Affected Version Matrix 17

VendorProduct Version RangeStatus
Linux Linux 281072fb2a7294cde7acbf5375b879f40a8001b7< 82501f1ead557cbee1c2467654ec109a80334d22 affected
1f69c086b20e27763af28145981435423f088268< 779332447108545ef04682ea29af5f85c0202aee affected
602fa8af44fd55a58f9e94eb673e8adad2c6cc46< 58766252f6b2c0487cda6976a53d2bb03ae28e2a affected
230a5ed7d813fb516de81d23f09d7506753e41e9< a594382ec6d0cc8cff5a8bc7e61b54e3858fb243 affected
43e4197dd5f6b474a8b16f8b6a42cd45cf4f9d1a< e06841a2abf9c82735cee39e88b1d79464088840 affected
cb52e7f24c1d01a536a847dff0d1d95889cc3b5c< cc18b4685910d5d9de8314bae9c55790701b1811 affected
426384dd4980040651536fef5feac4dcc4d7ee4e< f4d928c00254cfc9dd0ee7076f4a59bceec675f4 affected
50749f2dd6854a41830996ad302aef2ffaf011d8< 8a02fb71d7192ff1a9a47c9d937624966c6e09af affected
… +9 more rows
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I. Basic Information for CVE-2023-53716

Vulnerability Information
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Vulnerability Title
net: fix skb leak in __skb_tstamp_tx()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: fix skb leak in __skb_tstamp_tx() Commit 50749f2dd685 ("tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp.") added a call to skb_orphan_frags_rx() to fix leaks with zerocopy skbs. But it ended up adding a leak of its own. When skb_orphan_frags_rx() fails, the function just returns, leaking the skb it just cloned. Free it before returning. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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skb_orphan_frags_rx失败时未释放克隆的skb，可能导致内存泄漏。
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 281072fb2a7294cde7acbf5375b879f40a8001b7 ~ 82501f1ead557cbee1c2467654ec109a80334d22 -
Linux Linux 4.14.315 ~ 4.14.316 -

II. Public POCs for CVE-2023-53716

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III. Intelligence Information for CVE-2023-53716

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Patches & Fixes for CVE-2023-53716 (8)

Same Patch Batch · Linux · 2025-10-22 · 67 CVEs total

CVE-2023-53711 8.2 HIGH NFS: Fix a potential data corruption
CVE-2023-53705 8.2 HIGH ipv6: Fix out-of-bounds access in ipv6_find_tlv()
CVE-2023-53713 7.8 HIGH arm64: sme: Use STR P to clear FFR context field in streaming SVE mode
CVE-2022-50581 7.8 HIGH hfs: fix OOB Read in __hfs_brec_find
CVE-2023-53718 7.8 HIGH ring-buffer: Do not swap cpu_buffer during resize process
CVE-2022-50569 7.8 HIGH xfrm: Update ipcomp_scratches with NULL when freed
CVE-2022-50570 7.8 HIGH platform/chrome: fix memory corruption in ioctl
CVE-2022-50567 7.8 HIGH fs: jfs: fix shift-out-of-bounds in dbAllocAG
CVE-2023-53707 7.8 HIGH drm/amdgpu: Fix integer overflow in amdgpu_cs_pass1
CVE-2023-53692 7.8 HIGH ext4: fix use-after-free read in ext4_find_extent for bigalloc + inline
CVE-2023-53729 7.8 HIGH soc: qcom: qmi_encdec: Restrict string length in decode
CVE-2023-53698 7.8 HIGH xsk: fix refcount underflow in error path
CVE-2023-53695 7.8 HIGH udf: Detect system inodes linked into directory hierarchy
CVE-2023-53726 7.1 HIGH arm64: csum: Fix OoB access in IP checksum code for negative lengths
CVE-2023-53719 serial: arc_uart: fix of_iomap leak in `arc_serial_probe`
CVE-2023-53708 ACPI: x86: s2idle: Catch multiple ACPI_TYPE_PACKAGE objects
CVE-2023-53704 clk: imx: clk-imx8mp: improve error handling in imx8mp_clocks_probe()
CVE-2023-53712 ARM: 9317/1: kexec: Make smp stop calls asynchronous
CVE-2023-53702 s390/crypto: use vector instructions only if available for ChaCha20
CVE-2023-53710 wifi: mt76: mt7921: fix error code of return in mt7921_acpi_read

Showing top 20 of 67 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53716

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