CVE-2024-50261
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- CVE-2024-50261
CVE Details
| Release Date: | 2024-11-09 | |
| Impact: | Important | What is this? |
Description
In the Linux kernel, the following vulnerability has been resolved:
macsec: Fix use-after-free while sending the offloading packet
KASAN reports the following UAF. The metadata_dst, which is used to
store the SCI value for macsec offload, is already freed by
metadata_dst_free() in macsec_free_netdev(), while driver still use it
for sending the packet.
To fix this issue, dst_release() is used instead to release
metadata_dst. So it is not freed instantly in macsec_free_netdev() if
still referenced by skb.
BUG: KASAN: slab-use-after-free in mlx5e_xmit+0x1e8f/0x4190 [mlx5_core]
Read of size 2 at addr ffff88813e42e038 by task kworker/7:2/714
[...]
Workqueue: mld mld_ifc_work
Call Trace:
See more information about CVE-2024-50261 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 6.4 |
| Vector String: | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| Version: | 3.1 |
| Attack Vector: | Local |
| Attack Complexity: | High |
| Privileges Required: | High |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | High |
| Integrity Impact: | High |
| Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (kernel-uek) | ELSA-2025-20066 | 2025-01-27 |
| Oracle Linux version 8 (kernel-uek) | ELSA-2025-20095 | 2025-02-09 |
| Oracle Linux version 9 (kernel-uek) | ELSA-2025-20066 | 2025-01-27 |
| Oracle Linux version 9 (kernel-uek) | ELSA-2025-20095 | 2025-02-09 |
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