CVE-2026-98402

Что произошло

In the Linux kernel, the following vulnerability has been resolved: net: icmp: avoid invalid transport header access in icmp_send tracepoint syzbot reported a WARNING triggered by DEBUG_NET_WARN_ON_ONCE(): WARNING: at skb_transport_header include/linux/skbuff.h:3087 [inline] WARNING: at udp_hdr include/linux/udp.h:23 [inline] WARNING: at do_trace_event_raw_event_icmp_send include/trace/events/icmp.h:30 [inline] WARNING: at trace_event_raw_event_icmp_send+0x48c/0x6ec include/trace/events/icmp.h:11 Call trace: skb_transport_header include/linux/skbuff.h:3087 [inline] udp_hdr include/linux/udp.h:23 [inline] do_trace_event_raw_event_icmp_send include/trace/events/icmp.h:30 [inline] trace_event_raw_event_icmp_send+0x48c/0x6ec include/trace/events/icmp.h:11 __traceiter_icmp_send include/trace/events/icmp.h:11 [inline] __do_trace_icmp_send include/trace/events/icmp.h:11 [inline] trace_icmp_send+0x320/0x49c include/trace/events/icmp.h:11 __icmp_send+0xcfc/0x11d8 net/ipv4/icmp.c:1013 ipv4_send_dest_unreach net/ipv4/route.c:1280 [inline] ipv4_link_failure+0x57c/0x8dc net/ipv4/route.c:1287 dst_link_failure include/net/dst.h:438 [inline] vti_tunnel_xmit+0xe40/0x17a4 net/ipv4/ip_vti.c:307 TP_fast_assign() unconditionally calls udp_hdr(skb) before checking whether the packet is UDP. Furthermore, __icmp_send() can be invoked from paths (e.g., link failures, ARP errors, forwarding, AF_PACKET) where skb->transport_header was never initialized (~0U). Under CONFIG_DEBUG_NET=y, calling skb_transport_header(skb) triggers DEBUG_NET_WARN_ON_ONCE(!skb_transport_header_was_set(skb)). Fix this by: 1. Only parsing transport info when iph->protocol == IPPROTO_UDP. 2. Using skb_header_pointer() at skb_network_offset(skb) + (iph->ihl << 2) to safely fetch the UDP header without assuming transport_header is set.

Что делать

dpkg-query -W -f='${Package}	${Version}\n'

rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'

Get-HotFix | Select-Object HotFixID, InstalledOn

Продукты и затронутые версии

{
  "status": "affected",
  "version": "524c341cb16a8d5318d2ffacf6fe160271a18743",
  "lessThan": "ec6d4612d1c170e1cef1fe55526471da1e81e777",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "21b28f97e621cba196fb32c576734d216a8a79c9",
  "lessThan": "99654b651c6d5fe865798a2adb859767905f9278",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "db3efdcf70c752e8a8deb16071d8e693c3ef8746",
  "lessThan": "b972b5e6168dc5d1e13297b1f37f71d6b21cc0f1",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "db3efdcf70c752e8a8deb16071d8e693c3ef8746",
  "lessThan": "04c0d35bac5122b533672a6775851dfae84e265e",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "db3efdcf70c752e8a8deb16071d8e693c3ef8746",
  "lessThan": "2b32f8c3560905582fb12ed68315a6e606367a6a",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "db3efdcf70c752e8a8deb16071d8e693c3ef8746",
  "lessThan": "7fcc2fe39fed1cb98a7374a113ff3800e8f9af80",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "6.1.130",
  "lessThan": "6.1.189",
  "versionType": "semver"
}

{
  "status": "affected",
  "version": "6.6.81",
  "lessThan": "6.6.158",
  "versionType": "semver"
}

{
  "status": "affected",
  "version": "6.10"
}

{
  "status": "unaffected",
  "version": "0",
  "lessThan": "6.10",
  "versionType": "semver"
}

{
  "status": "unaffected",
  "version": "6.1.189",
  "versionType": "semver",
  "lessThanOrEqual": "6.1.*"
}

{
  "status": "unaffected",
  "version": "6.6.158",
  "versionType": "semver",
  "lessThanOrEqual": "6.6.*"
}

{
  "status": "unaffected",
  "version": "6.12.111",
  "versionType": "semver",
  "lessThanOrEqual": "6.12.*"
}

{
  "status": "unaffected",
  "version": "6.18.53",
  "versionType": "semver",
  "lessThanOrEqual": "6.18.*"
}

{
  "status": "unaffected",
  "version": "7.2.7",
  "versionType": "semver",
  "lessThanOrEqual": "7.2.*"
}

{
  "status": "unaffected",
  "version": "7.3",
  "versionType": "original_commit_for_fix",
  "lessThanOrEqual": "*"
}

CVSS: оценки и векторы

Оценка CVSS отсутствует.

Источники и ссылки

{
  "cwes": [],
  "epss": {
    "source": "epss",
    "received_at": "2026-11-02T21:15:46.208716+00:00"
  },
  "title": {
    "source": "cve",
    "received_at": "2026-10-28T20:15:08.305411+00:00"
  },
  "scores": [],
  "status": {
    "source": "cve",
    "received_at": "2026-10-28T20:15:08.305411+00:00"
  },
  "affected": [
    "cve"
  ],
  "published": {
    "source": "cve",
    "received_at": "2026-10-28T20:15:08.305411+00:00"
  },
  "solutions": [],
  "percentile": {
    "source": "epss",
    "received_at": "2026-11-02T21:15:46.208716+00:00"
  },
  "references": [
    "cve"
  ],
  "description": {
    "source": "cve",
    "received_at": "2026-10-28T20:15:08.305411+00:00"
  },
  "workarounds": [],
  "configurations": []
}

Хронология записи

1. Данные обновлены03.11.2026, 00:15
2. Данные обновлены02.11.2026, 00:13
3. Данные обновлены31.10.2026, 12:00
4. Данные обновлены29.10.2026, 12:47
5. Опубликована28.10.2026, 23:15

Личная заметка и статус

Другие CVE того же продукта