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CVE-2026-46292— pmdomain: core: Fix detach procedure for virtual devices in genpd

AI Predicted 5.5 Difficulty: Hard EPSS 0.17% · P6

Possible ATT&CK Techniques 1AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinux3c095f32a92be4d07f3172a777dab1aacdb6a728< e8f8dad44f024a5c99e54a48ad5c943fa8e54319affected
3c095f32a92be4d07f3172a777dab1aacdb6a728< 98b8104978474d381256a2b2fb0e7ca8e05a7bfaaffected
3c095f32a92be4d07f3172a777dab1aacdb6a728< 52e485ed0dcb5496864003ba9ffcef7d5b613f83affected
3c095f32a92be4d07f3172a777dab1aacdb6a728< 707cb5df3eab32ddc52979418f7ace62941e6381affected
3c095f32a92be4d07f3172a777dab1aacdb6a728< 361518a26e4434e879db6ff43bf364795dcbfbffaffected
3c095f32a92be4d07f3172a777dab1aacdb6a728< 51a7dd9cbae9210335ce398642ecaaa52c939eb5affected
3c095f32a92be4d07f3172a777dab1aacdb6a728< 8d44391a7f29e4601e8243f13498d0219bab2576affected
3c095f32a92be4d07f3172a777dab1aacdb6a728< 26735dfdd8930d9ef1fa92e590a9bf77726efdf6affected
… +10 more rows
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I. Basic Information for CVE-2026-46292

Vulnerability Information
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Vulnerability Title
pmdomain: core: Fix detach procedure for virtual devices in genpd
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: pmdomain: core: Fix detach procedure for virtual devices in genpd If a device is attached to a PM domain through genpd_dev_pm_attach_by_id(), genpd calls pm_runtime_enable() for the corresponding virtual device that it registers. While this avoids boilerplate code in drivers, there is no corresponding call to pm_runtime_disable() in genpd_dev_pm_detach(). This means these virtual devices are typically detached from its genpd, while runtime PM remains enabled for them, which is not how things are designed to work. In worst cases it may lead to critical errors, like a NULL pointer dereference bug in genpd_runtime_suspend(), which was recently reported. For another case, we may end up keeping an unnecessary vote for a performance state for the device. To fix these problems, let's add this missing call to pm_runtime_disable() in genpd_dev_pm_detach().
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genpd中虚拟设备分离过程，可能导致空指针取消引用。
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 3c095f32a92be4d07f3172a777dab1aacdb6a728 ~ e8f8dad44f024a5c99e54a48ad5c943fa8e54319 -
LinuxLinux 4.18 -

II. Public POCs for CVE-2026-46292

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III. Intelligence Information for CVE-2026-46292

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Patches & Fixes for CVE-2026-46292 (8)

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-2026-46292

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