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CVE-2021-47671 - Canal (CAN) Linux Kernel Memory Leak Vulnerability

CVE ID : CVE-2021-47671
Published : April 17, 2025, 6:15 p.m. | 2 hours, 28 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: es58x_rx_err_msg(): fix memory leak in error path In es58x_rx_err_msg(), if can->do_set_mode() fails, the function directly returns without calling netif_rx(skb). This means that the skb previously allocated by alloc_can_err_skb() is not freed. In other terms, this is a memory leak. This patch simply removes the return statement in the error branch and let the function continue. Issue was found with GCC -fanalyzer, please follow the link below for details.
Severity: 3.3 | LOW
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