CVE-2026-72351

UNKNOWN 0.0

gue: validate REMCSUM private option length

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

In the Linux kernel, the following vulnerability has been resolved: gue: validate REMCSUM private option length GUE private flags can indicate that remote checksum offload metadata is present. The private flags field itself is accounted for by guehdr_flags_len(), but guehdr_priv_flags_len() currently returns 0 even when GUE_PFLAG_REMCSUM is set. This lets a packet with only the private flags field pass validate_gue_flags(), after which gue_remcsum() and gue_gro_remcsum() read the missing REMCSUM start/offset fields from the following bytes. Account for GUE_PLEN_REMCSUM when GUE_PFLAG_REMCSUM is present so that malformed packets are rejected during option validation.

Vendor	linux
Product	linux
Ecosystems	Linux Kernel
Industries	Technology
Published	Aug 15, 2026

Stay Ahead of the Next One

Get instant alerts for linux linux

Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

Affected Versions

Linux / Linux

c1aa8347e73e4092411fbd96cc59531fb7e76d04 < 158b9995d3c87f3b93f5c22df54a12e12a3438b3 c1aa8347e73e4092411fbd96cc59531fb7e76d04 < 7c6876ec1b227261b51803f784c7be1b2242a1a0 c1aa8347e73e4092411fbd96cc59531fb7e76d04 < 2c4de9988e9ddc760b750d6b6e701c35ff60ad14 c1aa8347e73e4092411fbd96cc59531fb7e76d04 < 2a99224c120823987e4d829726f4ecb33e03fc1e c1aa8347e73e4092411fbd96cc59531fb7e76d04 < 61e78679c7c9ca685bff58e4b6348304dc60aafd c1aa8347e73e4092411fbd96cc59531fb7e76d04 < 4a4a1d41c6e901e773bcf795f562a47fa71f692a c1aa8347e73e4092411fbd96cc59531fb7e76d04 < f618cbe9b24cd0202004d2db781d5f80ab77037f c1aa8347e73e4092411fbd96cc59531fb7e76d04 < d335dcc6f521571d57117b8deeebc940836e5450

Linux / Linux

3.19

References

NVD ↗ CVE.org ↗ EPSS Data ↗