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Out-of-bounds Write The advisory has been revoked - it doesn't affect any version of package kernel-zfcpdump-devel-matched  (opens in a new tab)

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EPSS
0.41% (33rd percentile)

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  • Snyk IDSNYK-RHEL10-KERNELZFCPDUMPDEVELMATCHED-16920712
  • published28 May 2026
  • disclosed8 May 2026
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Introduced: 8 May 2026

CVE-2026-43341  (opens in a new tab)
CWE-787  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-devel-matched package and not the kernel-zfcpdump-devel-matched package as distributed by RHEL.

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.