CVE-2021-47521
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedMay 24, 2024
First seenMay 24, 2024
How to fix
Update
- linux linux_kernel4.4.295, 4.9.293, 4.14.258, 4.19.221, 5.4.165, 5.10.85, 5.15.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 3.2 ≤ v < 4.4.295, 4.5 ≤ v < 4.9.293, 4.10 ≤ v < 4.14.258, 4.15 ≤ v < 4.19.221, 4.20 ≤ v < 5.4.165, 5.5 ≤ v < 5.10.85, 5.11 ≤ v < 5.15.8 | 4.4.295, 4.9.293, 4.14.258, 4.19.221, 5.4.165, 5.10.85, 5.15.8 |
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