CVE-2021-47372
High
Description
In the Linux kernel, the following vulnerability has been resolved: net: macb: fix use after free on rmmod plat_dev->dev->platform_data is released by platform_device_unregister(), use of pclk and hclk is a use-after-free. Since device unregister won't need a clk device we adjust the function call sequence to fix this issue. [ 31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci] [ 31.275563] Freed by task 306: [ 30.276782] platform_device_release+0x25/0x80
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedMay 21, 2024
First seenMay 21, 2024
How to fix
Update
- linux linux_kernel4.14.249, 4.19.209, 5.4.150, 5.10.70, 5.14.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 4.14.249, 4.15 ≤ v < 4.19.209, 4.20 ≤ v < 5.4.150, 5.5 ≤ v < 5.10.70, 5.11 ≤ v < 5.14.9, 5.15 | 4.14.249, 4.19.209, 5.4.150, 5.10.70, 5.14.9 |
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