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

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2026-23378— net/sched: act_ife: Fix metalist update behavior

CVSS 7.8 · High EPSS 0.01% · P3
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-23378

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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: Fix metalist update behavior
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ife: Fix metalist update behavior Whenever an ife action replace changes the metalist, instead of replacing the old data on the metalist, the current ife code is appending the new metadata. Aside from being innapropriate behavior, this may lead to an unbounded addition of metadata to the metalist which might cause an out of bounds error when running the encode op: [ 138.423369][ C1] ================================================================== [ 138.424317][ C1] BUG: KASAN: slab-out-of-bounds in ife_tlv_meta_encode (net/ife/ife.c:168) [ 138.424906][ C1] Write of size 4 at addr ffff8880077f4ffe by task ife_out_out_bou/255 [ 138.425778][ C1] CPU: 1 UID: 0 PID: 255 Comm: ife_out_out_bou Not tainted 7.0.0-rc1-00169-gfbdfa8da05b6 #624 PREEMPT(full) [ 138.425795][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 138.425800][ C1] Call Trace: [ 138.425804][ C1] <IRQ> [ 138.425808][ C1] dump_stack_lvl (lib/dump_stack.c:122) [ 138.425828][ C1] print_report (mm/kasan/report.c:379 mm/kasan/report.c:482) [ 138.425839][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 138.425844][ C1] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:95 (discriminator 1) ./include/linux/rcupdate.h:975 (discriminator 1) ./include/linux/mmzone.h:2207 (discriminator 1) arch/x86/mm/physaddr.c:54 (discriminator 1)) [ 138.425853][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168) [ 138.425859][ C1] kasan_report (mm/kasan/report.c:221 mm/kasan/report.c:597) [ 138.425868][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168) [ 138.425878][ C1] kasan_check_range (mm/kasan/generic.c:186 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1)) [ 138.425884][ C1] __asan_memset (mm/kasan/shadow.c:84 (discriminator 2)) [ 138.425889][ C1] ife_tlv_meta_encode (net/ife/ife.c:168) [ 138.425893][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:171) [ 138.425898][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 138.425903][ C1] ife_encode_meta_u16 (net/sched/act_ife.c:57) [ 138.425910][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 138.425916][ C1] ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 3)) [ 138.425921][ C1] ? __pfx_ife_encode_meta_u16 (net/sched/act_ife.c:45) [ 138.425927][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 138.425931][ C1] tcf_ife_act (net/sched/act_ife.c:847 net/sched/act_ife.c:879) To solve this issue, fix the replace behavior by adding the metalist to the ife rcu data structure.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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，该漏洞源于金属列表更新不当，可能导致越界写入。
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 aa9fd9a325d51fa0b11153b03b8fefff569fa955 ~ 56ade7ddea6ce605552341785d08e365c3f61861 -
LinuxLinux 4.15 -

II. Public POCs for CVE-2026-23378

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-23378

请登录查看更多情报信息。

Same Patch Batch · Linux · 2026-03-25 · 116 CVEs total

CVE-2026-233958.8 HIGHBluetooth: L2CAP: Fix accepting multiple L2CAP_ECRED_CONN_REQ
CVE-2026-317888.2 HIGHxen/privcmd: restrict usage in unprivileged domU
CVE-2026-233407.8 HIGHnet: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs
CVE-2026-233367.8 HIGHwifi: cfg80211: cancel rfkill_block work in wiphy_unregister()
CVE-2026-233507.8 HIGHdrm/xe/queue: Call fini on exec queue creation fail
CVE-2026-233517.8 HIGHnetfilter: nft_set_pipapo: split gc into unlink and reclaim phase
CVE-2026-233177.8 HIGHdrm/vmwgfx: Return the correct value in vmw_translate_ptr functions
CVE-2026-233067.8 HIGHscsi: pm8001: Fix use-after-free in pm8001_queue_command()
CVE-2026-233727.8 HIGHnfc: rawsock: cancel tx_work before socket teardown
CVE-2026-233837.8 HIGHbpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing
CVE-2026-232887.8 HIGHaccel/amdxdna: Fix out-of-bounds memset in command slot handling
CVE-2026-233917.8 HIGHnetfilter: xt_CT: drop pending enqueued packets on template removal
CVE-2026-232807.8 HIGHaccel/amdxdna: Prevent ubuf size overflow
CVE-2026-233927.8 HIGHnetfilter: nf_tables: release flowtable after rcu grace period on error
CVE-2026-233937.8 HIGHbridge: cfm: Fix race condition in peer_mep deletion
CVE-2026-233647.4 HIGHksmbd: Compare MACs in constant time
CVE-2026-232947.0 HIGHbpf: Fix race in devmap on PREEMPT_RT
CVE-2026-23355ata: libata: cancel pending work after clearing deferred_qc
CVE-2026-23359bpf: Fix stack-out-of-bounds write in devmap
CVE-2026-23356drbd: fix "LOGIC BUG" in drbd_al_begin_io_nonblock()

Showing top 20 of 116 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23378

No comments yet

Leave a comment