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CVE-2026-90141— ipvs: fix integer overflow in ftp helper port/address parsing

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.

在 Linux 内核中，已修复以下漏洞： ipvs: 修复 FTP 辅助模块中端口/地址解析时的整数溢出问题 函数在将十进制数字累加到 类型的 以及无符号字符数组 时，未对溢出进行检查。当收到一个精心构造的 FTP PASV/EPSV 响应，其中包含过长的端口号或地址字节（octet）时，数值会发生回绕（wrap-around），导致辅助模块使用被截断的端口或地址来配置数据连接。 netfilter 的 conntrack FTP 辅助模块曾存在相同的缺陷，已在提交 （"netfilter: nf_conntrac

CVSS 7.3 · High EPSS 0.45% · P37

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< d02de9a7a7e2484da0cf37e50614840623b98a62 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< fc1493c905d7e0bc8830c1d83915cb7831daf1a1 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 50cb9b7263a2ed01f7d2f97818a800c2ee05f661 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< deaa88fa010ba0dfc554d09e006ddd1ce9945c82 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 00bcc6d679262ea42688fba1d7819ea6e56f12ef affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 4aed450adaee3a021db27be94c61fe025b0d05ff affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< b1908bff0faaa94d55be72da65879cad632e8236 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e625a9477d12baaff4025c5f9989184a907ea8fc affected
… +10 more rows
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I. Basic Information for CVE-2026-90141

Vulnerability Information
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Vulnerability Title
ipvs: fix integer overflow in ftp helper port/address parsing
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ipvs: fix integer overflow in ftp helper port/address parsing ip_vs_ftp_get_addrport() accumulates decimal digits into a __u16 (hport) and into unsigned char (p[]) without checking for overflow. A crafted FTP PASV/EPSV response with an over-long port or address octet wraps the value, so the helper configures the data connection with a truncated port/address. The netfilter conntrack FTP helper had the same defect, fixed in commit 2b413fc689ba ("netfilter: nf_conntrack_ftp: avoid u16 overflows"). Apply the equivalent fix here: widen the port accumulator to u32 and reject values above 65535, and reject address octets above 255.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ d02de9a7a7e2484da0cf37e50614840623b98a62 -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2026-90141

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III. Intelligence Information for CVE-2026-90141

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Patches & Fixes for CVE-2026-90141 (8)

Same Patch Batch · Linux · 2026-09-17 · 600 CVEs total

CVE-2026-92489 9.8 CRITICAL xfrm: Fix skb double-free in xfrm_dev_direct_output()
CVE-2026-90104 9.8 CRITICAL NFSv4.1: zero referring call lists before decoding
CVE-2026-90235 9.8 CRITICAL sunrpc: xprtsock: annotate shared socket callbacks with READ_ONCE/WRITE_ONCE
CVE-2026-90173 9.8 CRITICAL smb: smbdirect: free completion queues with ib_free_cq()
CVE-2026-90151 9.8 CRITICAL NFSv4: remove callback IDR entry on client allocation failure
CVE-2026-90110 9.4 CRITICAL inetpeer: randomize RB-tree node comparison using SipHash
CVE-2026-90413 9.1 CRITICAL IB/isert: reject login PDUs declaring more data than was received
CVE-2026-90414 9.1 CRITICAL IB/isert: reject PDUs declaring more data than was received
CVE-2026-90230 9.1 CRITICAL nvmet: fix heap out-of-bounds read in nvmet_auth_negotiate()
CVE-2026-90256 8.8 HIGH Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
CVE-2026-90357 8.8 HIGH wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement
CVE-2026-90286 8.8 HIGH drm/amdgpu/gfx6: Use PFP on the compute queues too
CVE-2026-90381 8.8 HIGH wifi: mt76: fix handling channel context with different bands in mt76_switch_vif_chanctx()
CVE-2026-90380 8.8 HIGH wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_complete
CVE-2026-90329 8.8 HIGH HID: synchronize input before cleaning up a failed probe
CVE-2026-93042 8.8 HIGH dmaengine: dw-edma: Terminate all descriptors without callbacks
CVE-2026-90162 8.8 HIGH ksmbd: defer publishing granted locks to prevent UAF/double-free race
CVE-2026-90379 8.8 HIGH wifi: mt76: mt7921: Add PCIe AER handler support to prevent system crash
CVE-2026-90367 8.8 HIGH wifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER
CVE-2026-90371 8.8 HIGH wifi: mt76: fix RXDMAD_C buffer recycling race

Showing top 20 of 600 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-90141

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