CVE-2026-46109— usb: ulpi: fix memory leak on ulpi_register() error paths
Possible ATT&CK Techniques 1AI
T1001 · Data ObfuscationAffected Version Matrix 26
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2f70ba9dae13a190673cc3f9b4aad52179738f60< 0c2c0c6820fe96fa4be0a0499f8d3f3321b9af6c | affected |
ee248e6e941e4f2e634df2bd43e5f1ef810ab6df< f1b855c00988a9cb41134cab7cf9faedba775dd9 | affected | ||
272a9b26c336a295e4e209157fed809706c1b1f7< 7bd61ed0bf9f4f1f2673d489b3bda1555b48d054 | affected | ||
aaeae6533d77e6ed4def85baec01e2815ebbef61< b0c0d44adb55c66663886cb6e30ee92cbb0f5385 | affected | ||
8763f8317bb389aded32a32b08f6751cfff657d2< be2c1d825f54277472c87019e82013ac534ddc4c | affected | ||
38c28fe25611099230f0965c925499bfcf46a795< 2a71e01b2cf9b4329ff67102c1bea7448c2a2d2d | affected | ||
01af542392b5d41fd659d487015a71f627accce3< f30ccfc2985590b33a23a3d8bed7ca16c0af551b | affected | ||
01af542392b5d41fd659d487015a71f627accce3< 0b9fcab1b8608d429e5f239afb197de928d4de7d | affected | ||
| … +18 more rows | |||
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I. Basic Information for CVE-2026-46109
Vulnerability Information
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Vulnerability Title
usb: ulpi: fix memory leak on ulpi_register() error paths
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: ulpi: fix memory leak on ulpi_register() error paths Commit 01af542392b5 ("usb: ulpi: fix double free in ulpi_register_interface() error path") removed kfree(ulpi) from ulpi_register_interface() to fix a double-free when device_register() fails. But when ulpi_of_register() or ulpi_read_id() fail before device_register() is called, the ulpi allocation is leaked. Add kfree(ulpi) on both error paths to properly clean up the allocation.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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usb:ulpi在ulpi_register()错误路径上存在内存泄漏。
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
II. Public POCs for CVE-2026-46109
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-46109 (8)
Same Patch Batch · Linux · 2026-05-28 · 138 CVEs total
| CVE-2026-46137 | 9.8 CRITICAL | mptcp: pm: ADD_ADDR rtx: fix potential data-race |
| CVE-2026-46195 | 9.8 CRITICAL | smb: client: validate dacloffset before building DACL pointers |
| CVE-2026-46115 | 9.8 CRITICAL | block: add pgmap check to biovec_phys_mergeable |
| CVE-2026-46135 | 9.8 CRITICAL | nvmet-tcp: fix race between ICReq handling and queue teardown |
| CVE-2026-46155 | 9.1 CRITICAL | smb/client: fix out-of-bounds read in smb2_compound_op() |
| CVE-2026-46185 | 9.1 CRITICAL | smb/client: fix out-of-bounds read in symlink_data() |
| CVE-2026-46119 | 9.1 CRITICAL | libceph: Fix slab-out-of-bounds access in auth message processing |
| CVE-2026-46113 | 8.8 HIGH | KVM: x86: Fix shadow paging use-after-free due to unexpected GFN |
| CVE-2026-46152 | 8.8 HIGH | wifi: mac80211: drop stray 'static' from fast-RX rx_result |
| CVE-2026-46212 | 8.8 HIGH | batman-adv: bla: prevent use-after-free when deleting claims |
| CVE-2026-46125 | 8.8 HIGH | wifi: mac80211: remove station if connection prep fails |
| CVE-2026-46238 | 8.8 HIGH | batman-adv: stop caching unowned originator pointers in BAT IV |
| CVE-2026-46166 | 8.8 HIGH | wifi: mac80211: use safe list iteration in radar detect work |
| CVE-2026-46198 | 8.8 HIGH | batman-adv: fix integer overflow on buff_pos |
| CVE-2026-46174 | 8.8 HIGH | x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache |
| CVE-2026-46232 | 8.1 HIGH | HID: playstation: Clamp num_touch_reports |
| CVE-2026-46138 | 8.1 HIGH | Bluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt |
| CVE-2026-46176 | 7.8 HIGH | RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() |
| CVE-2026-46197 | 7.8 HIGH | drm/amdkfd: validate SVM ioctl nattr against buffer size |
| CVE-2026-46145 | 7.8 HIGH | RDMA/mana: Validate rx_hash_key_len |
Showing top 20 of 138 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46243
smb: client: reject userspace cifs.spnego descriptions - CVE-2026-46242
eventpoll: fix ep_remove struct eventpoll / struct file UAF - CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf
Same vendor: Linux
- CVE-2026-46243
smb: client: reject userspace cifs.spnego descriptions - CVE-2026-46242
eventpoll: fix ep_remove struct eventpoll / struct file UAF - CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf
V. Comments for CVE-2026-46109
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