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CVE-2026-46298— pseries/papr-hvpipe: Fix race with interrupt handler

AI Predicted 4.7 Difficulty: Moderate EPSS 0.07% · P0

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinux814ef095f12c9fa142043ee689500f3a41bb6dab< 342c966f81cfc3cb6c297e80b37a9f3a5d637d2caffected
814ef095f12c9fa142043ee689500f3a41bb6dab< 7a4f0846ee6cc8cf44ae0046ed42e3259d1dd45baffected
6.18affected
< 6.18unaffected
7.0.7≤ 7.0.*unaffected
7.1≤ *unaffected
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I. Basic Information for CVE-2026-46298

Vulnerability Information
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Vulnerability Title
pseries/papr-hvpipe: Fix race with interrupt handler
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: pseries/papr-hvpipe: Fix race with interrupt handler While executing ->ioctl handler or ->release handler, if an interrupt fires on the same cpu, then we can enter into a deadlock. This patch fixes both these handlers to take spin_lock_irq{save|restore} versions of the lock to prevent this deadlock.
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papr-hvpipe驱动中中断处理竞争条件，可能导致死锁。
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 814ef095f12c9fa142043ee689500f3a41bb6dab ~ 342c966f81cfc3cb6c297e80b37a9f3a5d637d2c -
LinuxLinux 6.18 -

II. Public POCs for CVE-2026-46298

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III. Intelligence Information for CVE-2026-46298

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Patches & Fixes for CVE-2026-46298 (2)

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-2026-462757.8 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-2026-463117.8 HIGHdrm/amdgpu/userq: fix access to stale wptr mapping
CVE-2026-463047.5 HIGHnvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free
CVE-2026-463067.5 HIGHflow_dissector: do not dissect PPPoE PFC frames
CVE-2026-462997.0 HIGHhfsplus: fix held lock freed on hfsplus_fill_super()
CVE-2026-46296spi: s3c64xx: fix NULL-deref on driver unbind
CVE-2026-46314drm/v3d: Reject empty multisync extension to prevent infinite loop
CVE-2026-46301spi: topcliff-pch: fix use-after-free on unbind
CVE-2026-46302selinux: allow multiple opens of /sys/fs/selinux/policy
CVE-2026-46305staging: rtl8723bs: os_dep: avoid NULL pointer dereference in rtw_cbuf_alloc
CVE-2026-46308pmdomain: mediatek: fix use-after-free in scpsys_get_bus_protection_legacy()
CVE-2026-46309drm/xe/uapi: Reject coh_none PAT index for CPU cached memory in madvise
CVE-2026-46310media: renesas: vsp1: Fix NULL pointer deref on module unload

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-2026-46298

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