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CVE-2026-72414— net: dsa: sja1105: round up PTP perout pin duration

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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于PTP perout引脚持续时间pin_duration在转换为SJA1105时钟滴答时可能变为零，导致future_base_time()函数出现除零错误，可能导致拒绝服务。

AI Predicted 5.3 Difficulty: Easy EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 747e5eb31d59d047972a0dab03e5430fe4264332< aaf446099ca497c8d9a8e511fedf5d0e547bf8ec affected
747e5eb31d59d047972a0dab03e5430fe4264332< 201dcbbfb27f3db85c8cf125a75f3164a83ceb32 affected
747e5eb31d59d047972a0dab03e5430fe4264332< 9952291db7125b8a62bf19800b93dcac81fc70c0 affected
747e5eb31d59d047972a0dab03e5430fe4264332< fc62bfd30d30af07356f0f7121c826e1e753582f affected
747e5eb31d59d047972a0dab03e5430fe4264332< 28d13a89a211cc07caeef32069eaa847131b7351 affected
747e5eb31d59d047972a0dab03e5430fe4264332< 410629528067029096dba7ad7bc49e4a5e92708d affected
747e5eb31d59d047972a0dab03e5430fe4264332< 09efce96c909dff1a9317ec3714b7ddb4751b7af affected
747e5eb31d59d047972a0dab03e5430fe4264332< aee5836273b07b439fb245fb43930664d8b78518 affected
… +10 more rows
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I. Basic Information for CVE-2026-72414

Vulnerability Information
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Vulnerability Title
net: dsa: sja1105: round up PTP perout pin duration
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: round up PTP perout pin duration pin_duration is converted from the user-provided period to SJA1105 clock ticks and is later passed as the cycle_time argument to future_base_time(). Very small period values may become zero after the conversion, which can lead to a division by zero in future_base_time(). Round zero pin_duration up to 1 tick so that the smallest unsupported periods use the minimum non-zero hardware duration instead of passing zero to future_base_time().
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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于PTP perout引脚持续时间pin_duration在转换为SJA1105时钟滴答时可能变为零，导致future_base_time()函数出现除零错误，可能导致拒绝服务。
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 747e5eb31d59d047972a0dab03e5430fe4264332 ~ aaf446099ca497c8d9a8e511fedf5d0e547bf8ec -
Linux Linux 5.7 -

II. Public POCs for CVE-2026-72414

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III. Intelligence Information for CVE-2026-72414

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Patches & Fixes for CVE-2026-72414 (8)

Same Patch Batch · Linux · 2026-08-15 · 844 CVEs total

CVE-2026-74280 10.0 CRITICAL crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-74279 10.0 CRITICAL crypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-74475 10.0 CRITICAL vxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-72408 10.0 CRITICAL geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72319 9.8 CRITICAL ipvs: ensure inner headers in ICMP errors are in headroom
CVE-2026-72220 9.8 CRITICAL sunrpc: harden rq_procinfo lifecycle to prevent double-free
CVE-2026-72217 9.8 CRITICAL SUNRPC: Bound-check xdr_buf_to_bvec() stores before writing
CVE-2026-74384 9.8 CRITICAL nvme-multipath: fix flex array size in struct nvme_ns_head
CVE-2026-72299 9.8 CRITICAL tipc: restrict socket queue dumps in enqueue tracepoints
CVE-2026-72210 9.8 CRITICAL ntfs: fix off-by-one in mapping pairs decoding bounds checks
CVE-2026-72211 9.8 CRITICAL ntfs: grow index root value before reparent header update
CVE-2026-72317 9.8 CRITICAL SUNRPC: pin upper rpc_clnt across the TLS connect_worker
CVE-2026-72209 9.8 CRITICAL ntfs: validate attribute values on lookup
CVE-2026-74268 9.8 CRITICAL tcp: clear sock_ops cb flags before force-closing a child socket
CVE-2026-72207 9.8 CRITICAL ntfs: not change 0-byte $DATA attribute to non-resident
CVE-2026-74267 9.8 CRITICAL net/sched: sch_codel: Do not call qdisc_tree_reduce_backlog during peek before restoring q

Showing top 20 of 844 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-72414

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