Description

In the Linux kernel, the following vulnerability has been resolved: net/ipv6: ioam6: prevent schema length wraparound in trace fill ioam6_fill_trace_data() stores the schema contribution to the trace length in a u8. With bit 22 enabled and the largest schema payload, sclen becomes 1 + 1020 / 4, wraps from 256 to 0, and bypasses the remaining-space check. __ioam6_fill_trace_data() then positions the write cursor without reserving the schema area but still copies the 4-byte schema header and the full schema payload, overrunning the trace buffer. Keep sclen in an unsigned int so the remaining-space check and the write cursor calculation both see the full schema length.

INFO

Published Date :

2026-05-08T13:37:19.256Z

Last Modified :

2026-05-08T13:37:19.256Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2026-43341 vulnerability.

Vendors Products
Linux
  • Linux Kernel

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