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CVE-2026-43372— net: dsa: microchip: Fix error path in PTP IRQ setup

AI Predicted 4.4 Difficulty: Trivial EPSS 0.01% · P2

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 16

VendorProductVersion RangeStatus
LinuxLinux3b5a6115d6ea45df1ea65dc9b832b23db5d593ba< 3704ac6a0d9a78f66a187515a8ca3faedaf01cc5affected
1ba6da6ca3db76f6a39004fd33a9c990e428515e< e80fef36c676c947072dabeb5803ae59d92ba493affected
d0b8fec8ae50525b57139393d0bb1f446e82ff7e< 6c58a9fdb0d0e1011aa02455d26d6ebea251979baffected
d0b8fec8ae50525b57139393d0bb1f446e82ff7e< c2d1d41e0e8ec447d40a5752844fc5fb0b23db27affected
d0b8fec8ae50525b57139393d0bb1f446e82ff7e< 99c8c16a4aad0b37293cae213e15957c573cf79baffected
ae12e4e0ca231475bcef841c6a6722fa185fd520affected
6.6.119< 6.6.130affected
6.12.61< 6.12.78affected
… +8 more rows
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I. Basic Information for CVE-2026-43372

Vulnerability Information
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Vulnerability Title
net: dsa: microchip: Fix error path in PTP IRQ setup
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: dsa: microchip: Fix error path in PTP IRQ setup If request_threaded_irq() fails during the PTP message IRQ setup, the newly created IRQ mapping is never disposed. Indeed, the ksz_ptp_irq_setup()'s error path only frees the mappings that were successfully set up. Dispose the newly created mapping if the associated request_threaded_irq() fails at setup.
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PTP IRQ设置错误路径未释放IRQ映射，可能导致资源泄漏。
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 3b5a6115d6ea45df1ea65dc9b832b23db5d593ba ~ 3704ac6a0d9a78f66a187515a8ca3faedaf01cc5 -
LinuxLinux 6.18 -

II. Public POCs for CVE-2026-43372

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III. Intelligence Information for CVE-2026-43372

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Patches & Fixes for CVE-2026-43372 (5)

Same Patch Batch · Linux · 2026-05-08 · 199 CVEs total

CVE-2026-433049.8 CRITICALlibceph: define and enforce CEPH_MAX_KEY_LEN
CVE-2026-433419.8 CRITICALnet/ipv6: ioam6: prevent schema length wraparound in trace fill
CVE-2026-433769.8 CRITICALksmbd: fix use-after-free by using call_rcu() for oplock_info
CVE-2026-433789.8 CRITICALsmb: server: fix use-after-free in smb2_open()
CVE-2026-433799.8 CRITICALksmbd: fix use-after-free in smb_lazy_parent_lease_break_close()
CVE-2026-433849.8 CRITICALnet/tcp-ao: Fix MAC comparison to be constant-time
CVE-2026-434659.8 CRITICALnet/mlx5e: RX, Fix XDP multi-buf frag counting for striding RQ
CVE-2026-434029.8 CRITICALkthread: consolidate kthread exit paths to prevent use-after-free
CVE-2026-434149.8 CRITICALscsi: qla2xxx: Completely fix fcport double free
CVE-2026-433839.4 CRITICALnet/tcp-md5: Fix MAC comparison to be constant-time
CVE-2026-434069.1 CRITICALlibceph: prevent potential out-of-bounds reads in process_message_header()
CVE-2026-434079.1 CRITICALlibceph: Fix potential out-of-bounds access in ceph_handle_auth_reply()
CVE-2026-432848.8 HIGHxfrm: esp: avoid in-place decrypt on shared skb frags
CVE-2026-433228.8 HIGHBluetooth: hci_sync: Fix UAF in le_read_features_complete
CVE-2026-433348.8 HIGHBluetooth: SMP: force responder MITM requirements before building the pairing response
CVE-2026-433918.8 HIGHnsfs: tighten permission checks for handle opening
CVE-2026-434038.8 HIGHnsfs: tighten permission checks for ns iteration ioctls
CVE-2026-432918.3 HIGHnet: nfc: nci: Fix parameter validation for packet data
CVE-2026-434528.2 HIGHnetfilter: x_tables: guard option walkers against 1-byte tail reads
CVE-2026-433658.2 HIGHxfs: fix undersized l_iclog_roundoff values

Showing top 20 of 199 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-43372

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