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CVE-2026-43241— ntb: ntb_hw_switchtec: Fix array-index-out-of-bounds access

AI Predicted 4.4 Difficulty: Moderate EPSS 0.13% · P3

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinuxec0467ccbdeb69a86c8729073057bda7bce00eec< 348e1ac9ad983ed7e62de14e1daf47f1695a4ce9affected
ec0467ccbdeb69a86c8729073057bda7bce00eec< ee02c4f980c91820845dd8e469ec7dc670ab6d9daffected
ec0467ccbdeb69a86c8729073057bda7bce00eec< 740945de896021b9a859e71f38f6aea72a6393cfaffected
ec0467ccbdeb69a86c8729073057bda7bce00eec< 85c9daa1f8319bbb3dfee71dc6a2f969cd3b4c92affected
ec0467ccbdeb69a86c8729073057bda7bce00eec< 0e930420945106151c6eb3d7837b4e6154e9b144affected
ec0467ccbdeb69a86c8729073057bda7bce00eec< 2346856b74823a2a78109002e479a3d02526a9ceaffected
ec0467ccbdeb69a86c8729073057bda7bce00eec< 47ce292dd45dc689747c40603222691638919189affected
ec0467ccbdeb69a86c8729073057bda7bce00eec< c8ba7ad2cc1c7b90570aa347b8ebbe279f1efaceaffected
… +10 more rows
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I. Basic Information for CVE-2026-43241

Vulnerability Information
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Vulnerability Title
ntb: ntb_hw_switchtec: Fix array-index-out-of-bounds access
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix array-index-out-of-bounds access Number of MW LUTs depends on NTB configuration and can be set to MAX_MWS, This patch protects against invalid index out of bounds access to mw_sizes When invalid access print message to user that configuration is not valid.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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ntb_hw_switchtec驱动中数组索引越界访问，可能导致无效配置时访问越界。
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 ec0467ccbdeb69a86c8729073057bda7bce00eec ~ 348e1ac9ad983ed7e62de14e1daf47f1695a4ce9 -
LinuxLinux 4.15 -

II. Public POCs for CVE-2026-43241

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III. Intelligence Information for CVE-2026-43241

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Patches & Fixes for CVE-2026-43241 (8)

Same Patch Batch · Linux · 2026-05-06 · 224 CVEs total

CVE-2026-431869.8 CRITICALipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data()
CVE-2026-431859.8 CRITICALksmbd: fix signededness bug in smb_direct_prepare_negotiation()
CVE-2026-431259.8 CRITICALdlm: validate length in dlm_search_rsb_tree
CVE-2026-432089.8 CRITICALnet: do not pass flow_id to set_rps_cpu()
CVE-2026-431989.8 CRITICALtcp: fix potential race in tcp_v6_syn_recv_sock()
CVE-2026-431149.4 CRITICALnetfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry
CVE-2026-431179.1 CRITICALbtrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()
CVE-2026-430839.1 CRITICALnet: ioam6: fix OOB and missing lock
CVE-2026-431979.1 CRITICALnetconsole: avoid OOB reads, msg is not nul-terminated
CVE-2026-432328.8 HIGHnet: wan: farsync: Fix use-after-free bugs caused by unfinished tasklets
CVE-2026-432158.8 HIGHcifs: Fix locking usage for tcon fields
CVE-2026-431128.8 HIGHfs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath
CVE-2026-431138.8 HIGHwifi: wl1251: validate packet IDs before indexing tx_frames
CVE-2026-431878.8 HIGHxfs: delete attr leaf freemap entries when empty
CVE-2026-431108.8 HIGHwifi: brcmfmac: validate bsscfg indices in IF events
CVE-2026-432838.8 HIGHnet: ethernet: ec_bhf: Fix dma_free_coherent() dma handle
CVE-2026-431768.8 HIGHwifi: rtw89: pci: validate release report content before using for RTL8922DE
CVE-2026-432498.8 HIGH9p/xen: protect xen_9pfs_front_free against concurrent calls
CVE-2026-431588.8 HIGHxfs: fix freemap adjustments when adding xattrs to leaf blocks
CVE-2026-431728.8 HIGHwifi: iwlwifi: fix 22000 series SMEM parsing

Showing top 20 of 224 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-43241

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