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CVE-2026-64601— ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission

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存在安全漏洞，该漏洞源于capture_urb_complete()中冗余的usb_anchor_urb()调用导致URB锚点列表损坏，可能导致释放后重用。

CVSS 7.8 · High EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux c1bb0c13e430623c26543baae5bb9ae21139db87< 16f14f55141d4c55c3f321f93c328fff7cd6860a affected
c1bb0c13e430623c26543baae5bb9ae21139db87< ab1db64912428cdf06a4f9542e16e0575e9ad59f affected
c1bb0c13e430623c26543baae5bb9ae21139db87< 5cff1529a2f9b3461a7f5a6e36a86682fc290534 affected
6.18 affected
< 6.18 unaffected
6.18.39≤ 6.18.* unaffected
7.1.4≤ 7.1.* unaffected
7.2≤ * unaffected
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I. Basic Information for CVE-2026-64601

Vulnerability Information
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Vulnerability Title
ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission In capture_urb_complete(), usb_anchor_urb() is called on every completion callback, but the URB is already anchored from the initial submission in tascam_trigger_start(). Each redundant call corrupts the anchor's doubly-linked list and inflates the URB refcount. When usb_kill_anchored_urbs() traverses the list during stream stop / suspend / disconnect, the corrupted list leads to use-after-free. Remove the redundant usb_anchor_urb() from the resubmit path.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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基金会开源的一款操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于capture_urb_complete()中冗余的usb_anchor_urb()调用导致URB锚点列表损坏，可能导致释放后重用。
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 c1bb0c13e430623c26543baae5bb9ae21139db87 ~ 16f14f55141d4c55c3f321f93c328fff7cd6860a -
Linux Linux 6.18 -

II. Public POCs for CVE-2026-64601

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III. Intelligence Information for CVE-2026-64601

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Patches & Fixes for CVE-2026-64601 (3)

Same Patch Batch · Linux · 2026-08-06 · 22 CVEs total

CVE-2026-64597 9.8 CRITICAL smb: client: fix double-free in SMB2_close() replay
CVE-2026-64598 8.8 HIGH smb/client: Fix error code in smb2_aead_req_alloc()
CVE-2026-64586 8.8 HIGH wifi: brcmfmac: drain bus_reset work on device removal
CVE-2026-64583 7.8 HIGH usb: gadget: udc: bdc: free IRQ and drain func_wake_notify before teardown
CVE-2026-64584 7.8 HIGH usb: gadget: f_midi: cancel pending IN work before freeing the midi object
CVE-2026-64585 7.8 HIGH can: esd_usb: kill anchored URBs before freeing netdevs
CVE-2026-64599 7.8 HIGH crypto: amlogic - avoid double cleanup in meson_crypto_probe()
CVE-2026-64588 7.8 HIGH fuse-uring: fix data races on ring->ready
CVE-2026-64587 7.0 HIGH net: ethernet: arc: emac: quiesce interrupts before requesting IRQ
CVE-2026-64593 btrfs: do not trim a device which is not writeable
CVE-2026-64589 i2c: core: fix NULL-deref on adapter registration failure
CVE-2026-64591 iommu/vt-d: Avoid WARNING in sva unbind path
CVE-2026-64590 dma-buf/udmabuf: skip redundant cpu sync to fix cacheline EEXIST warning
CVE-2026-64592 riscv: mm: Unconditionally sfence.vma for spurious fault
CVE-2026-68480 x86/bugs: Make Safe-RET robust against interrupt injection
CVE-2026-64594 usb: gadget: f_fs: initialize reset_work at allocation time
CVE-2026-64595 HID: hid-lenovo-go: cancel cfg_setup work in hid_go_cfg_remove()
CVE-2026-64596 libfs: set SB_I_NOEXEC and SB_I_NODEV by default in init_pseudo()
CVE-2026-64603 platform/x86: intel-hid: Protect ACPI notify handler against recursion
CVE-2026-64602 iio: adc: spear: Initialize completion before requesting IRQ

Showing top 20 of 22 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-64601

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