Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1241c5650ff7a0236cebb89acca8aade48839fd6 to < 95c82d498d74c4e587db30021ca1aec90e29b5a5affected1241c5650ff7a0236cebb89acca8aade48839fd6 to < 32d7584441b9ecb279a03653b432612546e5efbeaffected1241c5650ff7a0236cebb89acca8aade48839fd6 to < dd7b6a8671939708cc4b7a46786d8c11297e8f69affected
Linux Linux
Default version status: affected
6.13affected0 to < 6.13unaffected6.18.34 to ≤ 6.18.*unaffected7.0.11 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected