🛡️ UBUNTU-CVE-2026-23064
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ife: avoid possible NULL deref tcf_ife_encode() must make sure ife_encode() does not return NULL. syzbot reported: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:ife_tlv_meta_encode+0x41/0xa0 net/ife/ife.c:166 CPU: 3 UID: 0 PID: 8990 Comm: syz.0.696 Not tainted syzkaller #0 PREEMPT(full) Call Trace: ife_encode_meta_u32+0x153/0x180 net/sched/act_ife.c:101 tcf_ife_encode net/sched/act_ife.c:841 [inline] tcf_ife_act+0x1022/0x1de0 net/sched/act_ife.c:877 tc_act include/net/tc_wrapper.h:130 [inline] tcf_action_exec+0x1c0/0xa20 net/sched/act_api.c:1152 tcf_exts_exec include/net/pkt_cls.h:349 [inline] mall_classify+0x1a0/0x2a0 net/sched/cls_matchall.c:42 tc_classify include/net/tc_wrapper.h:197 [inline] __tcf_classify net/sched/cls_api.c:1764 [inline] tcf_classify+0x7f2/0x1380 net/sched/cls_api.c:1860 multiq_classify net/sched/sch_multiq.c:39 [inline] multiq_enqueue+0xe0/0x510 net/sched/sch_multiq.c:66 dev_qdisc_enqueue+0x45/0x250 net/core/dev.c:4147 __dev_xmit_skb net/core/dev.c:4262 [inline] __dev_queue_xmit+0x2998/0x46c0 net/core/dev.c:4798

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-02-04
Updated 2026-06-15
Modified 2026-06-09
Fix URL N/A

Affected Packages

Software From version Fixed in
linux
linux-allwinner-5.19
linux-aws
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.15 5.15.0-1105.112~20.04.1
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4
linux-aws-5.8
linux-aws-6.14
linux-aws-6.17
linux-aws-6.2
linux-aws-6.5
linux-aws-6.8 6.8.0-1057.60~22.04.1
linux-aws-fips 6.8.0-1055.58+fips1
linux-aws-hwe
linux-azure
linux-azure-4.15
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15 5.15.0-1110.119~20.04.1
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4
linux-azure-5.8
linux-azure-6.11
linux-azure-6.14
linux-azure-6.17
linux-azure-6.2
linux-azure-6.5
linux-azure-6.8
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.14
linux-azure-fde-6.17
linux-azure-fde-6.2
linux-azure-fde-6.8
linux-azure-fips 6.8.0-1059.65+fips1
linux-azure-nvidia
linux-azure-nvidia-6.14
linux-bluefield
linux-fips 6.8.0-116.116+fips1
linux-gcp
linux-gcp-4.15
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.15 5.15.0-1106.115~20.04.1
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4
linux-gcp-5.8
linux-gcp-6.11
linux-gcp-6.14
linux-gcp-6.17
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-6.8 6.8.0-1060.63~22.04.1
linux-gcp-fips 6.8.0-1058.61+fips1
linux-gke 6.8.0-1054.60
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop 6.8.0-1041.44
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15 5.15.0-176.186~20.04.1
linux-hwe-5.19
linux-hwe-5.4
linux-hwe-5.8
linux-hwe-6.11
linux-hwe-6.14
linux-hwe-6.17
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-6.8 6.8.0-124.124~22.04.1
linux-hwe-edge
linux-ibm 6.8.0-1055.56
linux-ibm-5.15 5.15.0-1099.102~20.04.1
linux-ibm-5.4
linux-ibm-6.8 6.8.0-1055.56~22.04.1
linux-intel-5.13
linux-intel-iot-realtime 5.15.0-1097.99
linux-intel-iotg 5.15.0-1100.106
linux-intel-iotg-5.15 5.15.0-1100.106~20.04.1
linux-iot
linux-kvm 5.15.0-1097.102
linux-lowlatency 6.8.0-117.117.1
linux-lowlatency-hwe-5.15 5.15.0-175.185~20.04.1
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.11
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.8 6.8.0-117.117.1~22.04.1
linux-nvidia 6.8.0-1054.57
linux-nvidia-6.11
linux-nvidia-6.17
linux-nvidia-6.2
linux-nvidia-6.5
linux-nvidia-6.8 6.8.0-1054.57~22.04.1
linux-nvidia-lowlatency 6.8.0-1054.57.1
linux-nvidia-tegra 6.8.0-1024.24
linux-nvidia-tegra-5.15 5.15.0-1057.57~20.04.1
linux-nvidia-tegra-igx 5.15.0-1046.46
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oem-6.11
linux-oem-6.14
linux-oem-6.17
linux-oem-6.5
linux-oem-6.8
linux-oracle
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.15 5.15.0-1102.108~20.04.1
linux-oracle-5.3
linux-oracle-5.4
linux-oracle-5.8
linux-oracle-6.14
linux-oracle-6.17
linux-oracle-6.5
linux-oracle-6.8 6.8.0-1054.55~22.04.1
linux-raspi
linux-raspi-5.4
linux-raspi-realtime 6.8.0-2045.46
linux-raspi2
linux-realtime
linux-realtime-6.14
linux-realtime-6.17
linux-realtime-6.8 6.8.1-1051.52~22.04.1
linux-riscv
linux-riscv-5.11
linux-riscv-5.15 5.15.0-1099.103~20.04.1
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.14
linux-riscv-6.17
linux-riscv-6.5
linux-riscv-6.8 6.8.0-117.117~22.04.1
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5
linux-xilinx
linux-xilinx-zynqmp 5.15.0-1070.74

References

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