CVE-2026-64145 is a vulnerability in Linux Kernel
Published on July 19, 2026
wifi: wilc1000: fix dma_buffer leak on bus acquire failure
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.
Products Associated with CVE-2026-64145
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Affected Versions
Linux:- Version 1241c5650ff7a0236cebb89acca8aade48839fd6 and below 95c82d498d74c4e587db30021ca1aec90e29b5a5 is affected.
- Version 1241c5650ff7a0236cebb89acca8aade48839fd6 and below 32d7584441b9ecb279a03653b432612546e5efbe is affected.
- Version 1241c5650ff7a0236cebb89acca8aade48839fd6 and below dd7b6a8671939708cc4b7a46786d8c11297e8f69 is affected.
- Version 6.13 is affected.
- Before 6.13 is unaffected.
- Version 6.18.34, <= 6.18.* is unaffected.
- Version 7.0.11, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.