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CVE-2026-64242— usb: gadget: net2280: Fix double free in probe error path

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基金会开源的一款操作系统内核。 Linux kernel 5.10版本存在安全漏洞，该漏洞源于usb_initialize_gadget()函数在探测错误路径中调用kfree(dev)导致双重释放，可能引发内存损坏。

AI Predicted 4.4 Difficulty: Moderate EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux f770fbec4165b1acfabdeadb01ad6008d2c537b5< 71b3391dc81655ff058492f8e9d013b2c6e5747b affected
f770fbec4165b1acfabdeadb01ad6008d2c537b5< 550fa4d071a8c8e53072900869d37ae6abf4999d affected
f770fbec4165b1acfabdeadb01ad6008d2c537b5< c5b9fdb1e8ddf50bc6272927edb118679f170350 affected
f770fbec4165b1acfabdeadb01ad6008d2c537b5< 085652fda7f38040d1a2c42d72614f418feb843f affected
f770fbec4165b1acfabdeadb01ad6008d2c537b5< 48f89ead20e48d447ad29fa937b43b9fa981cf28 affected
f770fbec4165b1acfabdeadb01ad6008d2c537b5< e6f8be12f0307145b9a6010f044925952b37de8b affected
f770fbec4165b1acfabdeadb01ad6008d2c537b5< db2b72e83a0208ae2b3b270bf91662b1c6849a9b affected
f770fbec4165b1acfabdeadb01ad6008d2c537b5< c8547c74988e0b5f4cbb1b895e2a57aae084f070 affected
… +10 more rows
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I. Basic Information for CVE-2026-64242

Vulnerability Information
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Vulnerability Title
usb: gadget: net2280: Fix double free in probe error path
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: net2280: Fix double free in probe error path usb_initialize_gadget() installs gadget_release() as the release callback for the embedded gadget device. The struct net2280 instance is therefore released through gadget_release() when the gadget device's last reference is dropped. The probe error path calls net2280_remove(), which tears down the partially initialized device and drops the gadget reference with usb_put_gadget(). Calling kfree(dev) afterwards can free the same object again. Drop the explicit kfree() and let the gadget device release callback handle the final free. This issue was found by a static analysis tool I am developing.
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基金会开源的一款操作系统内核。 Linux kernel 5.10版本存在安全漏洞，该漏洞源于usb_initialize_gadget()函数在探测错误路径中调用kfree(dev)导致双重释放，可能引发内存损坏。
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 f770fbec4165b1acfabdeadb01ad6008d2c537b5 ~ 71b3391dc81655ff058492f8e9d013b2c6e5747b -
Linux Linux 5.10 -

II. Public POCs for CVE-2026-64242

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III. Intelligence Information for CVE-2026-64242

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Patches & Fixes for CVE-2026-64242 (8)

Same Patch Batch · Linux · 2026-07-24 · 48 CVEs total

CVE-2026-64232 9.8 CRITICAL block: recompute nr_integrity_segments in blk_insert_cloned_request
CVE-2026-64216 9.8 CRITICAL netfs: Fix potential UAF in netfs_unlock_abandoned_read_pages()
CVE-2026-64255 8.8 HIGH wifi: iwlwifi: mld: validate sta_mask before ffs() in BA session handlers
CVE-2026-64247 8.4 HIGH KVM: x86: hyper-v: Bound the bank index when querying sparse banks
CVE-2026-64223 8.1 HIGH wifi: mac80211: consume only present negotiated TTLM maps
CVE-2026-64235 8.1 HIGH x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines
CVE-2026-64226 7.8 HIGH sched_ext: Avoid UAF in scx_root_enable_workfn() init failure path
CVE-2026-64217 7.8 HIGH netfs: Fix overrun check in netfs_extract_user_iter()
CVE-2026-64218 7.8 HIGH batman-adv: bla: fix report_work leak on backbone_gw purge
CVE-2026-64221 7.8 HIGH spi: ti-qspi: fix use-after-free after DMA setup failure
CVE-2026-64251 7.8 HIGH pwrseq: core: fix use-after-free in pwrseq_debugfs_seq_next()
CVE-2026-64208 7.5 HIGH crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks
CVE-2026-64210 7.5 HIGH net/mlx5e: xsk: Fix unlocked writing to ICOSQ
CVE-2026-64243 7.1 HIGH ASoC: codecs: simple-mux: Fix enum control bounds check
CVE-2026-64219 7.0 HIGH drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_as
CVE-2026-64222 7.0 HIGH octeontx2-pf: avoid double free of pool->stack on AQ init failure
CVE-2026-64224 octeontx2-pf: fix double free in rvu_rep_rsrc_init()
CVE-2026-64227 ACPI: driver: Check ACPI_COMPANION() against NULL during probe
CVE-2026-64209 phy: qcom: qmp-usbc: Fix out-of-bounds array access in dp swing config
CVE-2026-64225 octeontx2-af: CGX: add bounds check to cgx_speed_mbps index

Showing top 20 of 48 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-64242

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