Riskcovery

CVE-2024-27390

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down()

State
Published
Severity
Not scored
Published
May 1, 2024
Updated
Jul 24, 2026
Reserved
Feb 25, 2024

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 94d6a071ab2f26eb18a83109940db0cec19552fd to before bfd2f3c58ad86ad33db80515e6c3503e0414e44bAffected
  • f185de28d9ae6c978135993769352e523ee8df06 to before 9d159d6637ccce25f879d662a480541ef4ba3a50Affected
  • f185de28d9ae6c978135993769352e523ee8df06 to before a03ede2282ebbd181bd6f5c38cbfcb5765afcd04Affected
  • f185de28d9ae6c978135993769352e523ee8df06 to before 26d4bac55750d535f1f0b8790dc26daf6089e373Affected
  • f185de28d9ae6c978135993769352e523ee8df06 to before 7eb06ee5921189812e6b4bfe7b0f1e878be16df7Affected
  • f185de28d9ae6c978135993769352e523ee8df06 to before 5da9a218340a2bc804dc4327e5804392e24a0b88Affected
  • f185de28d9ae6c978135993769352e523ee8df06 to before 17ef8efc00b34918b966388b2af0993811895a8cAffected
LinuxLinux
  • 5.13Affected
  • before 5.13Not affected
  • 5.15.153 through 5.15.*Not affected
  • 6.1.83 through 6.1.*Not affected
  • 6.6.23 through 6.6.*Not affected
  • 6.7.11 through 6.7.*Not affected
  • 6.8.2 through 6.8.*Not affected
  • 6.9 and laterNot affected

References

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