CVE•Published 2024-04-02•Modified 2026-08-04•1 article on news•4 live references•NVD data

CVE-2024-26665Linux · Linux_kernel

Vulnerability data via NVD (ingested)

CVSS v3.1

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS percentile

Exploit Prediction Scoring System · top 85% of all CVEs

Weaknesses (CWE)

CWE-125Out-of-bounds Read

Description

In the Linux kernel, the following vulnerability has been resolved: tunnels: fix out of bounds access when building IPv6 PMTU error If the ICMPv6 error is built from a non-linear skb we get the following splat, BUG: KASAN: slab-out-of-bounds in do_csum+0x220/0x240 Read of size 4 at addr ffff88811d402c80 by task netperf/820 CPU: 0 PID: 820 Comm: netperf Not tainted 6.8.0-rc1+ #543 ... kasan_report+0xd8/0x110 do_csum+0x220/0x240 csum_partial+0xc/0x20 skb_tunnel_check_pmtu+0xeb9/0x3280 vxlan_xmit_one+0x14c2/0x4080 vxlan_xmit+0xf61/0x5c00 dev_hard_start_xmit+0xfb/0x510 __dev_queue_xmit+0x7cd/0x32a0 br_dev_queue_push_xmit+0x39d/0x6a0 Use skb_checksum instead of csum_partial who cannot deal with non-linear SKBs.

Timeline

Published 2024-04-02

Modified 2026-08-04

External references

NVD MITRE trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2024-26665

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · OS

os:"Linux Kernel"

Hosts Shodan identified as running Linux Kernel.

More intel sources (5)

Shodan report

vuln:CVE-2024-26665

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2024-26665