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CVE-2026-31627— i2c: s3c24xx: check the size of the SMBUS message before using it

CVSS 7.8 · High EPSS 0.01% · P2
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I. Basic Information for CVE-2026-31627

Vulnerability Information
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Vulnerability Title
i2c: s3c24xx: check the size of the SMBUS message before using it
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: i2c: s3c24xx: check the size of the SMBUS message before using it The first byte of an i2c SMBUS message is the size, and it should be verified to ensure that it is in the range of 0..I2C_SMBUS_BLOCK_MAX before processing it. This is the same logic that was added in commit a6e04f05ce0b ("i2c: tegra: check msg length in SMBUS block read") to the i2c tegra driver.
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s3c24xx中未验证SMBUS消息大小，可能导致越界处理。
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 85747311ecb6167c989093c64a13807366fdd3a9 ~ fa00738ab30b07db1a43b9c85fc56b8cc3b7d197 -
LinuxLinux 3.10 -

II. Public POCs for CVE-2026-31627

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III. Intelligence Information for CVE-2026-31627

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Same Patch Batch · Linux · 2026-04-24 · 138 CVEs total

CVE-2026-316079.8 CRITICALusbip: validate number_of_packets in usbip_pack_ret_submit()
CVE-2026-316499.8 CRITICALnet: stmmac: fix integer underflow in chain mode
CVE-2026-316339.8 CRITICALrxrpc: Fix integer overflow in rxgk_verify_response()
CVE-2026-316089.8 CRITICALsmb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list
CVE-2026-316699.8 CRITICALmptcp: fix slab-use-after-free in __inet_lookup_established
CVE-2026-316689.8 CRITICALseg6: separate dst_cache for input and output paths in seg6 lwtunnel
CVE-2026-315899.8 CRITICALmm: call ->free_folio() directly in folio_unmap_invalidate()
CVE-2026-316099.8 CRITICALsmb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush()
CVE-2026-316579.8 CRITICALbatman-adv: hold claim backbone gateways by reference
CVE-2026-316379.8 CRITICALrxrpc: reject undecryptable rxkad response tickets
CVE-2026-315369.8 CRITICALsmb: server: let send_done handle a completion without IB_SEND_SIGNALED
CVE-2026-316599.8 CRITICALbatman-adv: reject oversized global TT response buffers
CVE-2026-316369.1 CRITICALrxrpc: fix RESPONSE authenticator parser OOB read
CVE-2026-316298.8 HIGHnfc: llcp: add missing return after LLCP_CLOSED checks
CVE-2026-315708.8 HIGHcan: gw: fix OOB heap access in cgw_csum_crc8_rel()
CVE-2026-316228.8 HIGHNFC: digital: Bounds check NFC-A cascade depth in SDD response handler
CVE-2026-315588.8 HIGHLoongArch: KVM: Make kvm_get_vcpu_by_cpuid() more robust
CVE-2026-315538.8 HIGHKVM: arm64: Fix the descriptor address in __kvm_at_swap_desc()
CVE-2026-315888.8 HIGHKVM: x86: Use scratch field in MMIO fragment to hold small write values
CVE-2026-316118.6 HIGHksmbd: require 3 sub-authorities before reading sub_auth[2]

Showing top 20 of 138 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-31627

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