HIGHVulnerability

CVE-2026-64145

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix dma_buffer leak on bus acquire failure wilc_wlan_firmware_download() allocates dma_buffer with kmalloc() at the top of the function and uses a 'fail:' label to free it via kfree(dma_buffer) on error. All later error paths correctly use 'goto fail' to route through this cleanup. However, the early failure path after the first acquire_bus() call uses a bare 'return ret;', which leaks dma_buffer whenever the bus acquire fails. Replace the early return with goto fail so the existing cleanup path runs. Found via a custom Coccinelle semantic patch hunting for kmalloc'd locals leaked on early-return error paths in driver firmware-download code.

Properties

severity
HIGH
score
7.8
cve_id
CVE-2026-64145
vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
published_at
2026-07-19T16:17:56.443
last_modified
2026-08-17T19:39:19.187

Related Entities (7)

HAS_WEAKNESS (1)

[Weakness]Out-of-bounds Write

DESCRIBED_BY (1)

[Source]NVD

AFFECTS_PRODUCT (5)

[Product]
[Product]
[Product]
[Product]
[Product]

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