CVE-2021-47372

net: macb: fix use after free on rmmod

EPSS 0.2%

Vexday Risk Score

3Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

21 mai 2024Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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

Produtos afetados

Linux · Linux

Referências

https://git.kernel.org/stable/c/1da750d1e2140ef43d64d17f301ff6f41b45541e https://git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b https://git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5 https://git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b https://git.kernel.org/stable/c/a7d521cc726f30b8e679a6f36d04b18a8ab3c536 https://git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8