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CVE-2026-23082— can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error

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，该漏洞源于未在usb_submit_urb错误时取消URB锚定，可能导致无限循环。

AI Predicted 4.3 Difficulty: Moderate EPSS 0.14% · P3

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 9c151898cc259a7784be60ba38664f42ede39b31< da01de754e455e2598a7f1ce4ff2078c4f0ecde1 affected
ec5ccc2af9e5b045671f3f604b57512feda8bcc5< aa8a8866c533a150be4763bcb27993603bd5426c affected
f905bcfa971edb89e398c98957838d8c6381c0c7< ce4352057fc5a986c76ece90801b9755e7c6e56c affected
08624b7206ddb9148eeffc2384ebda2c47b6d1e9< c610b550ccc0438d456dfe1df9f4f36254ccaae3 affected
9f669a38ca70839229b7ba0f851820850a2fe1f7< c3edc14da81a8d8398682f6e4ab819f09f37c0b7 affected
7352e1d5932a0e777e39fa4b619801191f57e603< 79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7 affected
6.12.67< 6.12.68 affected
6.18.7< 6.18.8 affected
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I. Basic Information for CVE-2026-23082

Vulnerability Information
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Vulnerability Title
can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error In commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"), the URB was re-anchored before usb_submit_urb() in gs_usb_receive_bulk_callback() to prevent a leak of this URB during cleanup. However, this patch did not take into account that usb_submit_urb() could fail. The URB remains anchored and usb_kill_anchored_urbs(&parent->rx_submitted) in gs_can_close() loops infinitely since the anchor list never becomes empty. To fix the bug, unanchor the URB when an usb_submit_urb() error occurs, also print an info message.
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，该漏洞源于未在usb_submit_urb错误时取消URB锚定，可能导致无限循环。
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 9c151898cc259a7784be60ba38664f42ede39b31 ~ da01de754e455e2598a7f1ce4ff2078c4f0ecde1 -
Linux Linux 6.12.67 ~ 6.12.68 -

II. Public POCs for CVE-2026-23082

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III. Intelligence Information for CVE-2026-23082

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Same Patch Batch · Linux · 2026-02-04 · 79 CVEs total

CVE-2026-23098 8.8 HIGH netrom: fix double-free in nr_route_frame()
CVE-2026-23066 7.8 HIGH rxrpc: Fix recvmsg() unconditional requeue
CVE-2026-23074 7.8 HIGH net/sched: Enforce that teql can only be used as root qdisc
CVE-2026-23077 7.8 HIGH mm/vma: fix anon_vma UAF on mremap() faulted, unfaulted merge
CVE-2026-23105 7.8 HIGH net/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag
CVE-2026-23103 7.8 HIGH ipvlan: Make the addrs_lock be per port
CVE-2026-23095 7.5 HIGH gue: Fix skb memleak with inner IP protocol 0.
CVE-2025-71192 7.0 HIGH ALSA: ac97: fix a double free in snd_ac97_controller_register()
CVE-2026-23065 platform/x86/amd: Fix memory leak in wbrf_record()
CVE-2026-23064 net/sched: act_ife: avoid possible NULL deref
CVE-2026-23067 iommu/io-pgtable-arm: fix size_t signedness bug in unmap path
CVE-2026-23059 scsi: qla2xxx: Sanitize payload size to prevent member overflow
CVE-2026-23042 idpf: fix aux device unplugging when rdma is not supported by vport
CVE-2026-23058 can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak
CVE-2026-23057 vsock/virtio: Coalesce only linear skb
CVE-2026-23056 uacce: implement mremap in uacce_vm_ops to return -EPERM
CVE-2025-71199 iio: adc: at91-sama5d2_adc: Fix potential use-after-free in sama5d2_adc driver
CVE-2025-71198 iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection
CVE-2025-71197 w1: therm: Fix off-by-one buffer overflow in alarms_store
CVE-2026-23060 crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec

Showing top 20 of 79 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23082

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