Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2026-23064— net/sched: act_ife: avoid possible NULL deref

EPSS 0.02% · P5
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-23064

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
net/sched: act_ife: avoid possible NULL deref
Source: NVD (National Vulnerability Database)
Vulnerability 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: <TASK> 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
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未检查函数返回值，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 295a6e06d21e1f469c9f38b00125a13b60ad4e7c ~ 4ef2c77851676b7ed106f0c47755bee9eeec9a40 -
LinuxLinux 4.11 -

II. Public POCs for CVE-2026-23064

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-23064

请登录查看更多情报信息。

Same Patch Batch · Linux · 2026-02-04 · 79 CVEs total

CVE-2026-230988.8 HIGHnetrom: fix double-free in nr_route_frame()
CVE-2026-230777.8 HIGHmm/vma: fix anon_vma UAF on mremap() faulted, unfaulted merge
CVE-2026-230747.8 HIGHnet/sched: Enforce that teql can only be used as root qdisc
CVE-2026-231037.8 HIGHipvlan: Make the addrs_lock be per port
CVE-2026-230667.8 HIGHrxrpc: Fix recvmsg() unconditional requeue
CVE-2026-231057.8 HIGHnet/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag
CVE-2026-230957.5 HIGHgue: Fix skb memleak with inner IP protocol 0.
CVE-2026-23067iommu/io-pgtable-arm: fix size_t signedness bug in unmap path
CVE-2026-23065platform/x86/amd: Fix memory leak in wbrf_record()
CVE-2026-23063uacce: ensure safe queue release with state management
CVE-2026-23062platform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro
CVE-2026-23061can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak
CVE-2026-23057vsock/virtio: Coalesce only linear skb
CVE-2026-23056uacce: implement mremap in uacce_vm_ops to return -EPERM
CVE-2025-71199iio: adc: at91-sama5d2_adc: Fix potential use-after-free in sama5d2_adc driver
CVE-2025-71198iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection
CVE-2025-71197w1: therm: Fix off-by-one buffer overflow in alarms_store
CVE-2026-23055i2c: riic: Move suspend handling to NOIRQ phase
CVE-2026-23053NFS: Fix a deadlock involving nfs_release_folio()
CVE-2026-23058can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak

Showing top 20 of 79 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23064

No comments yet

Leave a comment