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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2025-40168— smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().

CVSS 8.1 · High EPSS 0.33% · P26

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinuxa046d57da19f812216f393e7c535f5858f793ac3< d26e80f7fb62d77757b67a1b94e4ac756bc9c658affected
a046d57da19f812216f393e7c535f5858f793ac3< 235f81045c008169cc4e1955b4a64e118eebe61baffected
4.11affected
< 4.11unaffected
6.17.3≤ 6.17.*unaffected
6.18≤ *unaffected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2025-40168

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match(). smc_clc_prfx_match() is called from smc_listen_work() and not under RCU nor RTNL. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu(). Note that the returned value of smc_clc_prfx_match() is not used in the caller.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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smc_clc_prfx_match函数中未正确使用RCU保护，可能导致UAF攻击。
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 a046d57da19f812216f393e7c535f5858f793ac3 ~ d26e80f7fb62d77757b67a1b94e4ac756bc9c658 -
LinuxLinux 4.11 -

II. Public POCs for CVE-2025-40168

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-40168

请登录查看更多情报信息。

Same Patch Batch · Linux · 2025-11-12 · 96 CVEs total

CVE-2025-401769.8 CRITICALtls: wait for pending async decryptions if tls_strp_msg_hold fails
CVE-2025-401408.8 HIGHnet: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast
CVE-2025-401868.1 HIGHtcp: Don't call reqsk_fastopen_remove() in tcp_conn_request().
CVE-2025-401338.1 HIGHmptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().
CVE-2025-401588.1 HIGHipv6: use RCU in ip6_output()
CVE-2025-401358.1 HIGHipv6: use RCU in ip6_xmit()
CVE-2025-402048.1 HIGHsctp: Fix MAC comparison to be constant-time
CVE-2025-401418.0 HIGHBluetooth: ISO: Fix possible UAF on iso_conn_free
CVE-2025-401517.8 HIGHLoongArch: BPF: No support of struct argument in trampoline programs
CVE-2025-401497.8 HIGHtls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().
CVE-2025-401597.8 HIGHxsk: Harden userspace-supplied xdp_desc validation
CVE-2025-401677.8 HIGHext4: detect invalid INLINE_DATA + EXTENTS flag combination
CVE-2025-401747.8 HIGHx86/mm: Fix SMP ordering in switch_mm_irqs_off()
CVE-2025-401667.8 HIGHdrm/xe/guc: Check GuC running state before deregistering exec queue
CVE-2025-401657.8 HIGHmedia: nxp: imx8-isi: m2m: Fix streaming cleanup on release
CVE-2025-401697.8 HIGHbpf: Reject negative offsets for ALU ops
CVE-2025-402017.8 HIGHkernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths
CVE-2025-402037.8 HIGHlistmount: don't call path_put() under namespace semaphore
CVE-2025-402057.8 HIGHbtrfs: avoid potential out-of-bounds in btrfs_encode_fh()
CVE-2025-401997.8 HIGHpage_pool: Fix PP_MAGIC_MASK to avoid crashing on some 32-bit arches

Showing top 20 of 96 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-40168

No comments yet

Leave a comment