| Summary: |
VUL-0: CVE-2024-27390: kernel: ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() |
| Product: |
[Novell Products] SUSE Security Incidents
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Reporter: |
SMASH SMASH <smash_bz> |
| Component: |
Incidents | Assignee: |
Michal Kubeček <mkubecek> |
| Status: |
NEW
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QA Contact: |
Security Team bot <security-team> |
| Severity: |
Normal
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| Priority: |
P3 - Medium
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CC: |
camila.matos, mhocko, vasant.karasulli
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| Version: |
unspecified | |
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| Target Milestone: |
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| Hardware: |
Other | |
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| OS: |
Other | |
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| URL: |
https://smash.suse.de/issue/403874/
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| Whiteboard: |
CVSSv3.1:SUSE:CVE-2024-27390:3.3:(AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L) |
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Found By:
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Security Response Team
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Services Priority:
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Business Priority:
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Blocker:
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Marketing QA Status:
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IT Deployment:
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In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() As discussed in the past (commit 2d3916f31891 ("ipv6: fix skb drops in igmp6_event_query() and igmp6_event_report()")) I think the synchronize_net() call in ipv6_mc_down() is not needed. Under load, synchronize_net() can last between 200 usec and 5 ms. KASAN seems to agree as well. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-27390 https://www.cve.org/CVERecord?id=CVE-2024-27390 https://git.kernel.org/stable/c/17ef8efc00b34918b966388b2af0993811895a8c https://git.kernel.org/stable/c/26d4bac55750d535f1f0b8790dc26daf6089e373 https://git.kernel.org/stable/c/5da9a218340a2bc804dc4327e5804392e24a0b88 https://git.kernel.org/stable/c/7eb06ee5921189812e6b4bfe7b0f1e878be16df7 https://git.kernel.org/stable/c/9d159d6637ccce25f879d662a480541ef4ba3a50 https://git.kernel.org/stable/c/a03ede2282ebbd181bd6f5c38cbfcb5765afcd04 https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-27390.mbox https://bugzilla.redhat.com/show_bug.cgi?id=2278530