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CVE-2026-46301— spi: topcliff-pch: fix use-after-free on unbind

AI Predicted 4.4 Difficulty: Hard EPSS 0.16% · P6

Possible ATT&CK Techniques 1AI

T1055 · Process Injection

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinuxc37f3c2749b53225d36faa5c583203c5f12ae15b< 43334836b907adc21eab3079d2e6b26754468786affected
c37f3c2749b53225d36faa5c583203c5f12ae15b< 36e58c436d2c2a797800427dc04d74ffd8b6ce1caffected
c37f3c2749b53225d36faa5c583203c5f12ae15b< 4ca90deeca1c7dd72c1c380ba8143565516def2daffected
c37f3c2749b53225d36faa5c583203c5f12ae15b< d79e92161b65832e0b8cad5f3d84d17e5cd7a970affected
c37f3c2749b53225d36faa5c583203c5f12ae15b< 8822980668c96b5aa251c1e2daec1873262b8f3faffected
c37f3c2749b53225d36faa5c583203c5f12ae15b< d50ef3553acbacce6f2843304d41d06dca358bb6affected
c37f3c2749b53225d36faa5c583203c5f12ae15b< 0e8e57f9737ea257634db1d152fc430a0788a3e1affected
c37f3c2749b53225d36faa5c583203c5f12ae15b< 9d72732fe70c11424bc90ed466c7ccfa58b42a9aaffected
… +10 more rows
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I. Basic Information for CVE-2026-46301

Vulnerability Information
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Vulnerability Title
spi: topcliff-pch: fix use-after-free on unbind
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: spi: topcliff-pch: fix use-after-free on unbind Give the driver a chance to flush its queue before releasing the DMA buffers on driver unbind
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spi topcliff-pch驱动在解除绑定时释放后重用，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

VendorProductAffected VersionsCPESubscribe
LinuxLinux c37f3c2749b53225d36faa5c583203c5f12ae15b ~ 43334836b907adc21eab3079d2e6b26754468786 -
LinuxLinux 3.1 -

II. Public POCs for CVE-2026-46301

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III. Intelligence Information for CVE-2026-46301

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Patches & Fixes for CVE-2026-46301 (6)

Same Patch Batch · Linux · 2026-06-08 · 41 CVEs total

CVE-2026-462899.8 CRITICALlib/scatterlist: fix length calculations in extract_kvec_to_sg
CVE-2026-462888.4 HIGHof: unittest: fix use-after-free in of_unittest_changeset()
CVE-2026-463078.3 HIGHwifi: ath5k: do not access array OOB
CVE-2026-463038.2 HIGHisofs: validate Rock Ridge CE continuation extent against volume size
CVE-2026-462747.8 HIGHio-wq: check that the predecessor is hashed in io_wq_remove_pending()
CVE-2026-463117.8 HIGHdrm/amdgpu/userq: fix access to stale wptr mapping
CVE-2026-462757.8 HIGHBluetooth: hci_uart: fix UAFs and race conditions in close and init paths
CVE-2026-462777.8 HIGHmm/zone_device: do not touch device folio after calling ->folio_free()
CVE-2026-462807.8 HIGHlib: test_hmm: evict device pages on file close to avoid use-after-free
CVE-2026-463067.5 HIGHflow_dissector: do not dissect PPPoE PFC frames
CVE-2026-463047.5 HIGHnvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free
CVE-2026-462997.0 HIGHhfsplus: fix held lock freed on hfsplus_fill_super()
CVE-2026-46287net: txgbe: fix RTNL assertion warning when remove module
CVE-2026-46286leds: qcom-lpg: Check for array overflow when selecting the high resolution
CVE-2026-46279mm/alloc_tag: clear codetag for pages allocated before page_ext initialization
CVE-2026-46285mtd: docg3: fix use-after-free in docg3_release()
CVE-2026-46284mm/hugetlb: fix early boot crash on parameters without '=' separator
CVE-2026-46283tpm: Use kfree_sensitive() to free auth session in tpm_dev_release()
CVE-2026-46282iio: frequency: admv1013: fix NULL pointer dereference on str
CVE-2026-46281vmalloc: fix buffer overflow in vrealloc_node_align()

Showing top 20 of 41 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46301

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