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CVE-2026-23364— ksmbd: Compare MACs in constant time

CVSS 7.4 · High EPSS 0.04% · P14
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I. Basic Information for CVE-2026-23364

Vulnerability Information
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Vulnerability Title
ksmbd: Compare MACs in constant time
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: Compare MACs in constant time To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp() with the correct function, crypto_memneq().
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
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，该漏洞源于使用非恒定时间函数比较MAC地址，可能导致时序攻击。
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 e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 ~ cd52a0e309659537048a864211abc3ea4c5caa63 -
LinuxLinux 5.15 -

II. Public POCs for CVE-2026-23364

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III. Intelligence Information for CVE-2026-23364

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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-2026-233787.8 HIGHnet/sched: act_ife: Fix metalist update behavior
CVE-2026-233837.8 HIGHbpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing
CVE-2026-233927.8 HIGHnetfilter: nf_tables: release flowtable after rcu grace period on error
CVE-2026-233917.8 HIGHnetfilter: xt_CT: drop pending enqueued packets on template removal
CVE-2026-233937.8 HIGHbridge: cfm: Fix race condition in peer_mep deletion
CVE-2026-232887.8 HIGHaccel/amdxdna: Fix out-of-bounds memset in command slot handling
CVE-2026-232807.8 HIGHaccel/amdxdna: Prevent ubuf size overflow
CVE-2026-232947.0 HIGHbpf: Fix race in devmap on PREEMPT_RT
CVE-2026-23354x86/fred: Correct speculative safety in fred_extint()
CVE-2026-23356drbd: fix "LOGIC BUG" in drbd_al_begin_io_nonblock()
CVE-2026-23352x86/efi: defer freeing of boot services memory

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23364

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