CVEvulnerability
CVE-2024-47747
7.0 HIGH
Official page ↗
- Status
- Modified
- Published
- 2024-10-21
- Last modified
- 2026-10-15
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
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.
Affected configurations
• linux linux kernel (>= 4.15 < 5.10.227)
• linux linux kernel (>= 5.11 < 5.15.168)
• linux linux kernel (>= 5.16 < 6.1.113)
• linux linux kernel (>= 6.2 < 6.6.54)
• linux linux kernel (>= 6.7 < 6.10.13)
• linux linux kernel (>= 6.11 < 6.11.2)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://git.kernel.org/stable/c/1c57d61a43293252ad732007c7070fdb112545fd Patch
- https://git.kernel.org/stable/c/25d559ed2beec9b34045886100dac46d1ad92eba git.kernel.org
- https://git.kernel.org/stable/c/338a0582b28e69460df03af50e938b86b4206353 Patch
- https://git.kernel.org/stable/c/516dbc6d16637430808c39568cbb6b841d32b55b Patch
- https://git.kernel.org/stable/c/77a77331cef0a219b8dd91361435eeef04cb741c Patch
- https://git.kernel.org/stable/c/822c7bb1f6f8b0331e8d1927151faf8db3b33afd Patch
- https://git.kernel.org/stable/c/b5109b60ee4fcb2f2bb24f589575e10cc5283ad4 Patch
- https://git.kernel.org/stable/c/b5a84b6c772564c8359a9a0fbaeb2a2944aa1ee9 git.kernel.org
- https://git.kernel.org/stable/c/d2abc379071881798d20e2ac1d332ad855ae22f3 Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html lists.debian.org
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html cert-portal.siemens.com