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CVE-2025-40236— virtio-net: zero unused hash fields

EPSS 0.02% · P6
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I. Basic Information for CVE-2025-40236

Vulnerability Information
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Vulnerability Title
virtio-net: zero unused hash fields
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: virtio-net: zero unused hash fields When GSO tunnel is negotiated virtio_net_hdr_tnl_from_skb() tries to initialize the tunnel metadata but forget to zero unused rxhash fields. This may leak information to another side. Fixing this by zeroing the unused hash fields.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
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virtio-net未清零未使用的哈希字段，可能导致信息泄露。
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 a2fb4bc4e2a6a031683910d85b278c1d25ae5420 ~ b625d231c66a6041e98817ffc944bf6e4c45b2e3 -
LinuxLinux 6.17 -

II. Public POCs for CVE-2025-40236

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III. Intelligence Information for CVE-2025-40236

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Same Patch Batch · Linux · 2025-12-04 · 53 CVEs total

CVE-2025-40229mm/damon/core: fix potential memory leak by cleaning ops_filter in damon_destroy_scheme
CVE-2025-40214af_unix: Initialise scc_index in unix_add_edge().
CVE-2025-40215xfrm: delete x->tunnel as we delete x
CVE-2025-40220fuse: fix livelock in synchronous file put from fuseblk workers
CVE-2025-40217pidfs: validate extensible ioctls
CVE-2025-40218mm/damon/vaddr: do not repeat pte_offset_map_lock() until success
CVE-2025-40219PCI/IOV: Fix race between SR-IOV enable/disable and hotplug
CVE-2025-40216io_uring/rsrc: don't rely on user vaddr alignment
CVE-2025-40227mm/damon/sysfs: dealloc commit test ctx always
CVE-2025-40228mm/damon/sysfs: catch commit test ctx alloc failure
CVE-2025-40226firmware: arm_scmi: Account for failed debug initialization
CVE-2025-40230mm: prevent poison consumption when splitting THP
CVE-2025-40231vsock: fix lock inversion in vsock_assign_transport()
CVE-2025-40232rv: Fully convert enabled_monitors to use list_head as iterator
CVE-2025-40233ocfs2: clear extent cache after moving/defragmenting extents
CVE-2025-40234platform/x86: alienware-wmi-wmax: Fix NULL pointer dereference in sleep handlers
CVE-2025-40235btrfs: directly free partially initialized fs_info in btrfs_check_leaked_roots()
CVE-2025-40237fs/notify: call exportfs_encode_fid with s_umount
CVE-2025-40238net/mlx5: Fix IPsec cleanup over MPV device
CVE-2025-40239net: phy: micrel: always set shared->phydev for LAN8814

Showing top 20 of 53 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-40236

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