exploitDog

CVE-2026-23003

Опубликовано: 25 янв. 2026

Источник: nvd

CVSS3: 7.5

CVSS3: 5.5

EPSS Низкий

Описание

In the Linux kernel, the following vulnerability has been resolved:

ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()

Blamed commit did not take care of VLAN encapsulations as spotted by syzbot [1].

Use skb_vlan_inet_prepare() instead of pskb_inet_may_pull().

[1] BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 ip6ip6_dscp_ecn_decapsulate+0x16f/0x1b0 net/ipv6/ip6_tunnel.c:729 __ip6_tnl_rcv+0xed9/0x1b50 net/ipv6/ip6_tunnel.c:860 ip6_tnl_rcv+0xc3/0x100 net/ipv6/ip6_tunnel.c:903 gre_rcv+0x1529/0x1b90 net/ipv6/ip6_gre.c:-1 ip6_protocol_deliver_rcu+0x1c89/0x2c60 net/ipv6/ip6_input

Ссылки

Уязвимые конфигурации

Конфигурация 1

Одно из

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Версия от 5.10.210 (включая) до 5.10.249 (исключая)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Версия от 5.15.149 (включая) до 5.15.199 (исключая)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Версия от 6.1.77 (включая) до 6.1.162 (исключая)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Версия от 6.6.16 (включая) до 6.6.122 (исключая)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Версия от 6.7.4 (включая) до 6.8 (исключая)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Версия от 6.8.1 (включая) до 6.12.67 (исключая)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Версия от 6.13 (включая) до 6.18.7 (исключая)

cpe:2.3:o:linux:linux_kernel:6.8:-:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*

EPSS

Процентиль: 38%

0.00468

Низкий

7.5 High

CVSS3

5.5 Medium

CVSS3

Дефекты

CWE-908

Связанные уязвимости

CVE-2026-23003

CVSS3: 7.5

ubuntu

6 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() Blamed commit did not take care of VLAN encapsulations as spotted by syzbot [1]. Use skb_vlan_inet_prepare() instead of pskb_inet_may_pull(). [1] BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 ip6ip6_dscp_ecn_decapsulate+0x16f/0x1b0 net/ipv6/ip6_tunnel.c:729 __ip6_tnl_rcv+0xed9/0x1b50 net/ipv6/ip6_tunnel.c:860 ip6_tnl_rcv+0xc3/0x100 net/ipv6/ip6_tunnel.c:903 gre_rcv+0x1529/0x1b90 net/ipv6/ip6_gre.c:-1 ip6_protocol_deliver_rcu+0x1c89/0x2c60 net/ipv6/ip6_input.c:438 ip6_input_fi...

CVE-2026-23003

CVSS3: 6.1

redhat

6 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() Blamed commit did not take care of VLAN encapsulations as spotted by syzbot [1]. Use skb_vlan_inet_prepare() instead of pskb_inet_may_pull(). [1] BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 ip6ip6_dscp_ecn_decapsulate+0x16f/0x1b0 net/ipv6/ip6_tunnel.c:729 __ip6_tnl_rcv+0xed9/0x1b50 net/ipv6/ip6_tunnel.c:860 ip6_tnl_rcv+0xc3/0x100 net/ipv6/ip6_tunnel.c:903 gre_rcv+0x1529/0x1b90 net/ipv6/ip6_gre.c:-1 ip6_protocol_deliver_rcu+0x1c89/0x2c60 net/ipv6/ip6_input.c:438 ip6_input_fi...

CVE-2026-23003

CVSS3: 7.5

debian

6 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: i ...

GHSA-f9vv-4vcq-qjp3

CVSS3: 5.5

github

6 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() Blamed commit did not take care of VLAN encapsulations as spotted by syzbot [1]. Use skb_vlan_inet_prepare() instead of pskb_inet_may_pull(). [1] BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 ip6ip6_dscp_ecn_decapsulate+0x16f/0x1b0 net/ipv6/ip6_tunnel.c:729 __ip6_tnl_rcv+0xed9/0x1b50 net/ipv6/ip6_tunnel.c:860 ip6_tnl_rcv+0xc3/0x100 net/ipv6/ip6_tunnel.c:903 gre_rcv+0x1529/0x1b90 net/ipv6/ip6_gre.c:-1 ip6_protocol_deliver_rcu+0x1c89/0x2c60 net/ipv6/ip6_in...

BDU:2026-01113

CVSS3: 6.6

fstec

6 месяцев назад

Уязвимость функции skb_vlan_inet_prepare() ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 38%

0.00468

Низкий

7.5 High

CVSS3

5.5 Medium

CVSS3

Дефекты

CWE-908