net: fix removing a namespace with conflicting altnames
In the Linux kernel, the following vulnerability has been resolved: net: fix removing a namespace with conflicting altnames Mark reports a BUG() when a net namespace is removed. kernel BUG at net/core/dev.c:11520! Physical interfaces moved outside of init_net get "refunded" to init_net when that namespace disappears. The main interface name may get overwritten in the process if it would have conflicted. We need to also discard all conflicting altnames. Recent fixes addressed ensuring that altnames get moved with the main interface, which surfaced this problem.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.1.76, 6.6.15, 6.7.3
- CVEs
- CVE-2024-26634
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 17:54 UTC · Revision 1
Source evidence
net: fix removing a namespace with conflicting altnames
core-osv · Original sourcePublished 18 Mar 2024, 10:14 UTC
In the Linux kernel, the following vulnerability has been resolved: net: fix removing a namespace with conflicting altnames Mark reports a BUG() when a net namespace is removed. kernel BUG at net/core/dev.c:11520! Physical interfaces moved outside of init_net get "refunded" to init_net when that namespace disappears. The main interface name may get overwritten in the process if it would have conflicted. We need to also discard all conflicting altnames. Recent fixes addressed ensuring that altnames get moved with the main interface, which surfaced this problem.
osv:CVE-2024-26634
Kernel
Fixed versions: 6.1.76, 6.6.15, 6.7.3
Complete source record
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"title": "net: fix removing a namespace with conflicting altnames",
"summary": "In the Linux kernel, the following vulnerability has been resolved: net: fix removing a namespace with conflicting altnames Mark reports a BUG() when a net namespace is removed. kernel BUG at net/core/dev.c:11520! Physical interfaces moved outside of init_net get \"refunded\" to init_net when that namespace disappears. The main interface name may get overwritten in the process if it would have conflicted. We need to also discard all conflicting altnames. Recent fixes addressed ensuring that altnames get moved with the main interface, which surfaced this problem.",
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"modified": "2026-10-28T02:30:21.818160912Z",
"provider": "osv",
"references": [
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"security_relevant": true,
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"source_id": "core-osv",
"document_id": 487969,
"published_at": "2024-03-18T10:14:46.639+00:00"
}