CVE-2022-48754: phylib: fix potential use-after-free
First published: Thu Jun 20 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: phylib: fix potential use-after-free Commit bafbdd527d56 ("phylib: Add device reset GPIO support") added call to phy_device_reset(phydev) after the put_device() call in phy_detach(). The comment before the put_device() call says that the phydev might go away with put_device(). Fix potential use-after-free by calling phy_device_reset() before put_device().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.19.228 | 4.19.228 |
| redhat/kernel | <5.4.176 | 5.4.176 |
| redhat/kernel | <5.10.96 | 5.10.96 |
| redhat/kernel | <5.15.19 | 5.15.19 |
| redhat/kernel | <5.16.5 | 5.16.5 |
| redhat/kernel | <5.17 | 5.17 |
| Linux Kernel | >=4.16<4.19.228 | |
| Linux Kernel | >=4.20<5.4.176 | |
| Linux Kernel | >=5.5<5.10.96 | |
| Linux Kernel | >=5.11<5.15.19 | |
| Linux Kernel | >=5.16<5.16.5 | |
| Linux Kernel | =5.17-rc1 | |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Software Stack | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Virtual Appliance | <=ISVG 10.0.2 | |
| IBM Security Verify Governance Identity Manager Container | <=ISVG 10.0.2 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2022-48754
- https://lore.kernel.org/linux-cve-announce/2024062006-CVE-2022-48754-4012@gregkh/T
- https://access.redhat.com/errata/RHSA-2024:6206
- https://access.redhat.com/errata/RHSA-2024:7001
- https://access.redhat.com/errata/RHSA-2024:7000
- https://bugzilla.redhat.com/show_bug.cgi?id=2293304
- https://git.kernel.org/stable/c/67d271760b037ce0806d687ee6057edc8afd4205
- https://git.kernel.org/stable/c/f39027cbada43b33566c312e6be3db654ca3ad17
- https://git.kernel.org/stable/c/bd024e36f68174b1793906c39ca16cee0c9295c2
- https://git.kernel.org/stable/c/aefaccd19379d6c4620269a162bfb88ff687f289
- https://git.kernel.org/stable/c/cb2fab10fc5e7a3aa1bb0a68a3abdcf3e37852af
- https://git.kernel.org/stable/c/cbda1b16687580d5beee38273f6241ae3725960c
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2022-48754?
CVE-2022-48754 is rated as a medium-severity vulnerability affecting the Linux kernel.
How do I fix CVE-2022-48754?
To fix CVE-2022-48754, update the kernel to one of the following versions: 4.19.228, 5.4.176, 5.10.96, 5.15.19, 5.16.5, or 5.17.
What systems are affected by CVE-2022-48754?
CVE-2022-48754 affects multiple versions of the Linux kernel found in various Linux distributions.
Is CVE-2022-48754 a critical vulnerability?
CVE-2022-48754 is not classified as critical; it has a medium severity level.
What types of attacks can exploit CVE-2022-48754?
CVE-2022-48754 could potentially be exploited for a use-after-free attack leading to privilege escalation.
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