CVE-2026-72414

Summary

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().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux747e5eb31d59d047972a0dab03e5430fe4264332 < aaf446099ca497c8d9a8e511fedf5d0e547bf8ecaffected
LinuxLinux747e5eb31d59d047972a0dab03e5430fe4264332 < 201dcbbfb27f3db85c8cf125a75f3164a83ceb32affected
LinuxLinux747e5eb31d59d047972a0dab03e5430fe4264332 < 9952291db7125b8a62bf19800b93dcac81fc70c0affected
LinuxLinux747e5eb31d59d047972a0dab03e5430fe4264332 < fc62bfd30d30af07356f0f7121c826e1e753582faffected
LinuxLinux747e5eb31d59d047972a0dab03e5430fe4264332 < 28d13a89a211cc07caeef32069eaa847131b7351affected
LinuxLinux747e5eb31d59d047972a0dab03e5430fe4264332 < 410629528067029096dba7ad7bc49e4a5e92708daffected
LinuxLinux747e5eb31d59d047972a0dab03e5430fe4264332 < 09efce96c909dff1a9317ec3714b7ddb4751b7afaffected
LinuxLinux747e5eb31d59d047972a0dab03e5430fe4264332 < aee5836273b07b439fb245fb43930664d8b78518affected
LinuxLinux5.7affected
LinuxLinux0 < 5.7unaffected
LinuxLinux5.10.261 <= 5.10.*unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References