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CVE-2026-43248— vhost: move vdpa group bound check to vhost_vdpa

CVSS 7.8 · High EPSS 0.13% · P3

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 10

VendorProductVersion RangeStatus
LinuxLinuxbda324fd037a6b0d44da5699574ce741ca161bc4< ddb57354634b6ba851b79da45f1de42c646f27d0affected
bda324fd037a6b0d44da5699574ce741ca161bc4< 7441d35d14d9a3d66d925d90cb73c75394e6d454affected
bda324fd037a6b0d44da5699574ce741ca161bc4< 406db68f9cb976a8ddfafd631197264f2307e9c9affected
bda324fd037a6b0d44da5699574ce741ca161bc4< cd025c1e876b4e262e71398236a1550486a73edeaffected
5.19affected
< 5.19unaffected
6.12.75≤ 6.12.*unaffected
6.18.16≤ 6.18.*unaffected
… +2 more rows
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I. Basic Information for CVE-2026-43248

Vulnerability Information
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Vulnerability Title
vhost: move vdpa group bound check to vhost_vdpa
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: vhost: move vdpa group bound check to vhost_vdpa Remove duplication by consolidating these here. This reduces the posibility of a parent driver missing them. While we're at it, fix a bug in vdpa_sim where a valid ASID can be assigned to a group equal to ngroups, causing an out of bound write.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/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vdpa_sim驱动中组边界检查缺失，可能导致有效ASID分配给等于ngroups的组时越界写入。
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 bda324fd037a6b0d44da5699574ce741ca161bc4 ~ ddb57354634b6ba851b79da45f1de42c646f27d0 -
LinuxLinux 5.19 -

II. Public POCs for CVE-2026-43248

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III. Intelligence Information for CVE-2026-43248

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Patches & Fixes for CVE-2026-43248 (4)

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-2026-431108.8 HIGHwifi: brcmfmac: validate bsscfg indices in IF events
CVE-2026-431878.8 HIGHxfs: delete attr leaf freemap entries when empty
CVE-2026-432838.8 HIGHnet: ethernet: ec_bhf: Fix dma_free_coherent() dma handle
CVE-2026-431728.8 HIGHwifi: iwlwifi: fix 22000 series SMEM parsing
CVE-2026-431588.8 HIGHxfs: fix freemap adjustments when adding xattrs to leaf blocks
CVE-2026-432398.8 HIGHsmb: client: prevent races in ->query_interfaces()
CVE-2026-432498.8 HIGH9p/xen: protect xen_9pfs_front_free against concurrent calls

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-2026-43248

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