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CVE-2026-46288— of: unittest: fix use-after-free in of_unittest_changeset()

CVSS 8.4 · High EPSS 0.14% · P4

Possible ATT&CK Techniques 1AI

T1211 · Exploitation for Stealth

Affected Version Matrix 10

VendorProductVersion RangeStatus
LinuxLinux1c668ea65506e67ce2eae07b69bb09fcdd86e309< 37318d1a27c9cc5a70d3cd7e49e30ec86f2b8ca1affected
1c668ea65506e67ce2eae07b69bb09fcdd86e309< 7f0f0926f3010b10cff5e93446258f971e42f2fdaffected
1c668ea65506e67ce2eae07b69bb09fcdd86e309< 6fdad20b7975bdc32e85b45f8f7c640f6687b81faffected
1c668ea65506e67ce2eae07b69bb09fcdd86e309< faecdd423c27f0d6090156a435ba9dbbac0eaddbaffected
6.12affected
< 6.12unaffected
6.12.86≤ 6.12.*unaffected
6.18.27≤ 6.18.*unaffected
… +2 more rows
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I. Basic Information for CVE-2026-46288

Vulnerability Information
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Vulnerability Title
of: unittest: fix use-after-free in of_unittest_changeset()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-free in of_unittest_changeset() The variable 'parent' is assigned the value of 'nchangeset' earlier in the function, meaning both point to the same struct device_node. The call to of_node_put(nchangeset) can decrement the reference count to zero and free the node if there are no other holders. After that, the code still uses 'parent' to check for the presence of a property and to read a string property, leading to a use-after-free. Fix this by moving the of_node_put() call after the last access to 'parent', avoiding the UAF.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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of_unittest_changeset函数中释放后重用，可能导致系统崩溃。
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 1c668ea65506e67ce2eae07b69bb09fcdd86e309 ~ 37318d1a27c9cc5a70d3cd7e49e30ec86f2b8ca1 -
LinuxLinux 6.12 -

II. Public POCs for CVE-2026-46288

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III. Intelligence Information for CVE-2026-46288

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Patches & Fixes for CVE-2026-46288 (4)

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-2026-463078.3 HIGHwifi: ath5k: do not access array OOB
CVE-2026-463038.2 HIGHisofs: validate Rock Ridge CE continuation extent against volume size
CVE-2026-462757.8 HIGHBluetooth: hci_uart: fix UAFs and race conditions in close and init paths
CVE-2026-462807.8 HIGHlib: test_hmm: evict device pages on file close to avoid use-after-free
CVE-2026-462747.8 HIGHio-wq: check that the predecessor is hashed in io_wq_remove_pending()
CVE-2026-462777.8 HIGHmm/zone_device: do not touch device folio after calling ->folio_free()
CVE-2026-463117.8 HIGHdrm/amdgpu/userq: fix access to stale wptr mapping
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-2025-71315drm/vkms: Convert to DRM's vblank timer
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-2026-46285mtd: 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()
CVE-2026-46279mm/alloc_tag: clear codetag for pages allocated before page_ext initialization

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-2026-46288

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