In the Linux kernel, the following vulnerability has been resolved: can: sja1000: fix use after free in ems_pcmcia_add_card() If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up. CREATE(Triage):(User=admin) CVE-2021-47521 (https://nvd.nist.gov/vuln/detail/CVE-2021-47521)
