CVE-2022-48754
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().
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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().
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.23% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/67d271760b037ce0806d687ee6057edc8afd4205Patch
- https://git.kernel.org/stable/c/aefaccd19379d6c4620269a162bfb88ff687f289Patch
- https://git.kernel.org/stable/c/bd024e36f68174b1793906c39ca16cee0c9295c2Patch
- https://git.kernel.org/stable/c/cb2fab10fc5e7a3aa1bb0a68a3abdcf3e37852afPatch
- https://git.kernel.org/stable/c/cbda1b16687580d5beee38273f6241ae3725960cPatch
- https://git.kernel.org/stable/c/f39027cbada43b33566c312e6be3db654ca3ad17Patch
- https://git.kernel.org/stable/c/67d271760b037ce0806d687ee6057edc8afd4205Patch
- https://git.kernel.org/stable/c/aefaccd19379d6c4620269a162bfb88ff687f289Patch
- https://git.kernel.org/stable/c/bd024e36f68174b1793906c39ca16cee0c9295c2Patch
- https://git.kernel.org/stable/c/cb2fab10fc5e7a3aa1bb0a68a3abdcf3e37852afPatch
- https://git.kernel.org/stable/c/cbda1b16687580d5beee38273f6241ae3725960cPatch
- https://git.kernel.org/stable/c/f39027cbada43b33566c312e6be3db654ca3ad17Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.