Description
In the Linux kernel, the following vulnerability has been resolved:
net: seeq: Fix use after free vulnerability in ether3 Driver Due to Race Condition
In the ether3_probe function, a timer is initialized with a callback function ether3_ledoff, bound to &prev(dev)->timer. Once the timer is started, there is a risk of a race condition if the module or device is removed, triggering the ether3_remove function to perform cleanup. The sequence of operations that may lead to a UAF bug is as follows:
CPU0 CPU1
| ether3_ledoff ether3_remove | free_netdev(dev); | put_devic | kfree(dev); | | ether3_outw(priv(dev)->regs.config2 |= CFG2_CTRLO, REG_CONFIG2); | // use dev
Fix it by ensuring that the timer is canceled before proceeding with the cleanup in ether3_remove.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 6fd9c53f71862a4797b7ed8a5de80e2c64829f56, < 25d559ed2beec9b34045886100dac46d1ad92eba; >= 6fd9c53f71862a4797b7ed8a5de80e2c64829f56, < b5a84b6c772564c8359a9a0fbaeb2a2944aa1ee9; >= 6fd9c53f71862a4797b7ed8a5de80e2c64829f56, < 338a0582b28e69460df03af50e938b86b4206353; >= 6fd9c53f71862a4797b7ed8a5de80e2c64829f56, < 822c7bb1f6f8b0331e8d1927151faf8db3b33afd; >= 6fd9c53f71862a4797b7ed8a5de80e2c64829f56, < 1c57d61a43293252ad732007c7070fdb112545fd; >= 6fd9c53f71862a4797b7ed8a5de80e2c64829f56, < d2abc379071881798d20e2ac1d332ad855ae22f3; >= 6fd9c53f71862a4797b7ed8a5de80e2c64829f56, < 516dbc6d16637430808c39568cbb6b841d32b55b; >= 6fd9c53f71862a4797b7ed8a5de80e2c64829f56, < 77a77331cef0a219b8dd91361435eeef04cb741c; >= 6fd9c53f71862a4797b7ed8a5de80e2c64829f56, < b5109b60ee4fcb2f2bb24f589575e10cc5283ad4 |
| Linux | Linux | 4.15 |
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | < V1.1.1 |
| Siemens | RUGGEDCOM RST2428P | < V3.2 |
| Siemens | SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family | < V3.2 |
| Siemens | SCALANCE XCM-/XRM-/XCH-/XRH-300 family | < V3.2 |
References
- https://git.kernel.org/stable/c/1c57d61a43293252ad732007c7070fdb112545fdPatch
- https://git.kernel.org/stable/c/25d559ed2beec9b34045886100dac46d1ad92eba
- https://git.kernel.org/stable/c/338a0582b28e69460df03af50e938b86b4206353Patch
- https://git.kernel.org/stable/c/516dbc6d16637430808c39568cbb6b841d32b55bPatch
- https://git.kernel.org/stable/c/77a77331cef0a219b8dd91361435eeef04cb741cPatch
- https://git.kernel.org/stable/c/822c7bb1f6f8b0331e8d1927151faf8db3b33afdPatch
- https://git.kernel.org/stable/c/b5109b60ee4fcb2f2bb24f589575e10cc5283ad4Patch
- https://git.kernel.org/stable/c/b5a84b6c772564c8359a9a0fbaeb2a2944aa1ee9
- https://git.kernel.org/stable/c/d2abc379071881798d20e2ac1d332ad855ae22f3Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
Timeline
- Published
- Oct 21, 2024
- Last modified
- Oct 15, 2026
- NVD status
- Modified