Ubuntu.comUB:CVE-2021-47372CVE-2021-47372
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
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws-5.4 | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws-hwe | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-azure-4.15 | < any | UNKNOWN |
References
git.kernel.org/linus/d82d5303c4c539db86588ffb5dc5b26c3f1513e8 (5.15-rc2)
git.kernel.org/stable/c/1da750d1e2140ef43d64d17f301ff6f41b45541e
git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b
git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5
git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b
git.kernel.org/stable/c/a7d521cc726f30b8e679a6f36d04b18a8ab3c536
git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8
launchpad.net/bugs/cve/CVE-2021-47372
nvd.nist.gov/vuln/detail/CVE-2021-47372
security-tracker.debian.org/tracker/CVE-2021-47372
www.cve.org/CVERecord?id=CVE-2021-47372
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