In the Linux kernel, the following vulnerability has been resolved: ethtool: fail closed if we can't get max channel used in indirection tables Commit 0d1b7d6c9274 ("bnxt: fix crashes when reducing ring count with active RSS contexts") proves that allowing indirection table to contain channels with out of bounds IDs may lead to crashes. Currently the max channel check in the core gets skipped if driver can't fetch the indirection table or when we can't allocate memory. Both of those conditions should be extremely rare but if they do happen we should try to be safe and fail the channel change.
History

Wed, 09 Oct 2024 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Sun, 29 Sep 2024 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 28 Sep 2024 01:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Fri, 27 Sep 2024 12:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ethtool: fail closed if we can't get max channel used in indirection tables Commit 0d1b7d6c9274 ("bnxt: fix crashes when reducing ring count with active RSS contexts") proves that allowing indirection table to contain channels with out of bounds IDs may lead to crashes. Currently the max channel check in the core gets skipped if driver can't fetch the indirection table or when we can't allocate memory. Both of those conditions should be extremely rare but if they do happen we should try to be safe and fail the channel change.
Title ethtool: fail closed if we can't get max channel used in indirection tables
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-09-27T12:39:31.110Z

Updated: 2024-11-05T09:47:31.742Z

Reserved: 2024-09-11T15:12:18.287Z

Link: CVE-2024-46834

cve-icon Vulnrichment

Updated: 2024-09-29T14:03:29.519Z

cve-icon NVD

Status : Analyzed

Published: 2024-09-27T13:15:15.660

Modified: 2024-10-09T15:57:03.037

Link: CVE-2024-46834

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-09-27T00:00:00Z

Links: CVE-2024-46834 - Bugzilla