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CVE-2022-50365— skbuff: Account for tail adjustment during pull operations

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skbuff尾部调整操作不当，可能导致内核崩溃。

CVSS 7.5 · High EPSS 0.57% · P46

Possible ATT&CK Techniques 1 AI

T1498 · Network Denial of Service

Affected Version Matrix 25

VendorProduct Version RangeStatus
Linux Linux 162a5a8c3aff15c449e6b38355cdf80ab4f77a5a< ff3743d00f41d803e6ab9334962b674f3b7fd0cb affected
55fb612bef7fd237fb70068e2b6ff1cd1543a8ef< 6ac417d71b80e74b002313fcd73f7e9008e8e457 affected
821302dd0c51d29269ef73a595bdff294419e2cd< 2d59f0ca153e9573ec4f140988c0ccca0eb4181b affected
3dcbdb134f329842a38f0e6797191b885ab00a00< 668dc454bcbd1da73605201ff43f988c70848215 affected
3dcbdb134f329842a38f0e6797191b885ab00a00< 821be5a5ab09a40ba09cb5ba354f18cf7996fea0 affected
3dcbdb134f329842a38f0e6797191b885ab00a00< 8fb773eed4909ef5dc1bbeb3629a337d3336df7e affected
3dcbdb134f329842a38f0e6797191b885ab00a00< 946dd5dc4fcc4123cdfe3942b20012c4448cf89a affected
3dcbdb134f329842a38f0e6797191b885ab00a00< 331615d837f4979eb91a336a223a5c7f7886ecd5 affected
… +17 more rows
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I. Basic Information for CVE-2022-50365

Vulnerability Information
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Vulnerability Title
skbuff: Account for tail adjustment during pull operations
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: skbuff: Account for tail adjustment during pull operations Extending the tail can have some unexpected side effects if a program uses a helper like BPF_FUNC_skb_pull_data to read partial content beyond the head skb headlen when all the skbs in the gso frag_list are linear with no head_frag - kernel BUG at net/core/skbuff.c:4219! pc : skb_segment+0xcf4/0xd2c lr : skb_segment+0x63c/0xd2c Call trace: skb_segment+0xcf4/0xd2c __udp_gso_segment+0xa4/0x544 udp4_ufo_fragment+0x184/0x1c0 inet_gso_segment+0x16c/0x3a4 skb_mac_gso_segment+0xd4/0x1b0 __skb_gso_segment+0xcc/0x12c udp_rcv_segment+0x54/0x16c udp_queue_rcv_skb+0x78/0x144 udp_unicast_rcv_skb+0x8c/0xa4 __udp4_lib_rcv+0x490/0x68c udp_rcv+0x20/0x30 ip_protocol_deliver_rcu+0x1b0/0x33c ip_local_deliver+0xd8/0x1f0 ip_rcv+0x98/0x1a4 deliver_ptype_list_skb+0x98/0x1ec __netif_receive_skb_core+0x978/0xc60 Fix this by marking these skbs as GSO_DODGY so segmentation can handle the tail updates accordingly.
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skbuff尾部调整操作不当，可能导致内核崩溃。
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 162a5a8c3aff15c449e6b38355cdf80ab4f77a5a ~ ff3743d00f41d803e6ab9334962b674f3b7fd0cb -
Linux Linux 5.3 -

II. Public POCs for CVE-2022-50365

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III. Intelligence Information for CVE-2022-50365

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Same Patch Batch · Linux · 2025-09-17 · 56 CVEs total

CVE-2023-53338 9.8 CRITICAL lwt: Fix return values of BPF xmit ops
CVE-2022-50373 9.8 CRITICAL fs: dlm: fix race in lowcomms
CVE-2022-50363 9.8 CRITICAL skmsg: pass gfp argument to alloc_sk_msg()
CVE-2023-53360 9.8 CRITICAL NFSv4.2: Rework scratch handling for READ_PLUS (again)
CVE-2023-53358 8.8 HIGH ksmbd: fix racy issue under cocurrent smb2 tree disconnect
CVE-2023-53340 7.8 HIGH net/mlx5: Collect command failures data only for known commands
CVE-2022-50368 7.8 HIGH drm/msm/dsi: fix memory corruption with too many bridges
CVE-2022-50367 7.8 HIGH fs: fix UAF/GPF bug in nilfs_mdt_destroy
CVE-2022-50362 7.8 HIGH dmaengine: hisilicon: Add multi-thread support for a DMA channel
CVE-2023-53354 7.8 HIGH skbuff: skb_segment, Call zero copy functions before using skbuff frags
CVE-2022-50355 7.8 HIGH staging: vt6655: fix some erroneous memory clean-up loops
CVE-2022-50354 7.8 HIGH drm/amdkfd: Fix kfd_process_device_init_vm error handling
CVE-2023-53335 7.5 HIGH RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()
CVE-2023-53336 media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings
CVE-2022-50374 Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
CVE-2022-50353 mmc: wmt-sdmmc: fix return value check of mmc_add_host()
CVE-2023-53337 nilfs2: do not write dirty data after degenerating to read-only
CVE-2022-50372 cifs: Fix memory leak when build ntlmssp negotiate blob failed
CVE-2022-50370 i2c: designware: Fix handling of real but unexpected device interrupts
CVE-2022-50371 led: qcom-lpg: Fix sleeping in atomic

Showing top 20 of 56 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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