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CVE-2026-46219— spi: mpc52xx: fix use-after-free on unbind

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 mpc52xx驱动中取消绑定后状态机工作未取消，可能导致释放后重用。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 25

VendorProduct Version RangeStatus
Linux Linux e0c6ce8424095c2da32a063d3fc027494c689817< ac8316c896c79f32c1d0a38cb41fd2b14cf8112e affected
cd5106c77d6d6828aa82449f01f4eb436d602a21< ed929d40963073f23cfb50219ccbcc6e0c3ea641 affected
373d55a47dc662e5e30d12ad5d334312f757c1f1< 0944b20e9dfa2917bd70eb5b301cbb67fe54a718 affected
f65d85bc1ffd8a2c194bb2cd65e35ed3648ddd59< bb6b50f709c5a01906ff72a07fdc070bb3357188 affected
90b72189de2cddacb26250579da0510b29a8b82b< ee52da0dd83ebcd89ecbbe2660c57b15a25489f2 affected
984836621aad98802d92c4a3047114cf518074c8< 6c3e413919a12627d04a31a4a5fccb9fc129bb02 affected
984836621aad98802d92c4a3047114cf518074c8< bbcd6dd8e9f264440eaf6167382bf404911c1c46 affected
984836621aad98802d92c4a3047114cf518074c8< 706b3dc2ac7a998c55e14b3fd2e8f934c367e6e0 affected
… +17 more rows
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I. Basic Information for CVE-2026-46219

Vulnerability Information
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Vulnerability Title
spi: mpc52xx: fix use-after-free on unbind
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: spi: mpc52xx: fix use-after-free on unbind The state machine work is scheduled by the interrupt handler and therefore needs to be cancelled after disabling interrupts to avoid a potential use-after-free.
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spi mpc52xx驱动中取消绑定后状态机工作未取消，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 e0c6ce8424095c2da32a063d3fc027494c689817 ~ ac8316c896c79f32c1d0a38cb41fd2b14cf8112e -
Linux Linux 6.13 -

II. Public POCs for CVE-2026-46219

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III. Intelligence Information for CVE-2026-46219

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Patches & Fixes for CVE-2026-46219 (7)

Same Patch Batch · Linux · 2026-05-28 · 135 CVEs total

CVE-2026-46135 9.8 CRITICAL nvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-46137 9.8 CRITICAL mptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-46115 9.8 CRITICAL block: add pgmap check to biovec_phys_mergeable
CVE-2026-46195 9.8 CRITICAL smb: client: validate dacloffset before building DACL pointers
CVE-2026-46155 9.1 CRITICAL smb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-46119 9.1 CRITICAL libceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-46185 9.1 CRITICAL smb/client: fix out-of-bounds read in symlink_data()
CVE-2026-46125 8.8 HIGH wifi: mac80211: remove station if connection prep fails
CVE-2026-46166 8.8 HIGH wifi: mac80211: use safe list iteration in radar detect work
CVE-2026-46198 8.8 HIGH batman-adv: fix integer overflow on buff_pos
CVE-2026-46174 8.8 HIGH x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-46238 8.8 HIGH batman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-46152 8.8 HIGH wifi: mac80211: drop stray 'static' from fast-RX rx_result
CVE-2026-46212 8.8 HIGH batman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-46113 8.8 HIGH KVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-46232 8.1 HIGH HID: playstation: Clamp num_touch_reports
CVE-2026-46138 8.1 HIGH Bluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-46215 7.8 HIGH drm: Set old handle to NULL before prime swap in change_handle
CVE-2026-46129 7.8 HIGH btrfs: fix double free in create_space_info() error path
CVE-2026-46227 7.8 HIGH sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL

Showing top 20 of 135 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46219

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