Advisory Published
CVE Published
Updated

CVE-2024-27390: ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down()

First published: Wed May 01 2024(Updated: )

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.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected SoftwareAffected VersionHow to fix
ubuntu/linux<5.15.0-112.122
5.15.0-112.122
ubuntu/linux<6.8.0-35.35
6.8.0-35.35
ubuntu/linux<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-aws<5.15.0-1063.69
5.15.0-1063.69
ubuntu/linux-aws<6.8.0-1009.9
6.8.0-1009.9
ubuntu/linux-aws<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-aws-5.15<5.15.0-1063.69~20.04.1
5.15.0-1063.69~20.04.1
ubuntu/linux-aws-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-aws-5.4<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-aws-6.5<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-aws-fips<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-aws-hwe<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-azure<5.15.0-1066.75
5.15.0-1066.75
ubuntu/linux-azure<6.8.0-1008.8
6.8.0-1008.8
ubuntu/linux-azure<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-azure-4.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-azure-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-azure-5.4<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-azure-6.5<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-azure-fde<5.15.0-1067.76.1
5.15.0-1067.76.1
ubuntu/linux-azure-fde<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-azure-fde-5.15<5.15.0-1065.74~20.04.1.1
5.15.0-1065.74~20.04.1.1
ubuntu/linux-azure-fde-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-azure-fips<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-bluefield<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-fips<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-gcp<5.15.0-1062.70
5.15.0-1062.70
ubuntu/linux-gcp<6.8.0-1008.9
6.8.0-1008.9
ubuntu/linux-gcp<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-gcp-4.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-gcp-5.15<5.15.0-1062.70~20.04.1
5.15.0-1062.70~20.04.1
ubuntu/linux-gcp-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-gcp-5.4<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-gcp-6.5<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-gcp-fips<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-gke<5.15.0-1060.66
5.15.0-1060.66
ubuntu/linux-gke<6.8.0-1004.7
6.8.0-1004.7
ubuntu/linux-gke<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-gkeop<5.15.0-1046.53
5.15.0-1046.53
ubuntu/linux-gkeop<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-gkeop-5.15<5.15.0-1046.53~20.04.1
5.15.0-1046.53~20.04.1
ubuntu/linux-gkeop-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-hwe<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-hwe-5.15<5.15.0-113.123~20.04.1
5.15.0-113.123~20.04.1
ubuntu/linux-hwe-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-hwe-5.4<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-hwe-6.5<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-ibm<5.15.0-1056.59
5.15.0-1056.59
ubuntu/linux-ibm<6.8.0-1006.6
6.8.0-1006.6
ubuntu/linux-ibm<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-ibm-5.15<5.15.0-1057.60~20.04.1
5.15.0-1057.60~20.04.1
ubuntu/linux-ibm-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-ibm-5.4<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-intel<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-intel-iotg<5.15.0-1058.64
5.15.0-1058.64
ubuntu/linux-intel-iotg<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-intel-iotg-5.15<5.15.0-1058.64~20.04.1
5.15.0-1058.64~20.04.1
ubuntu/linux-intel-iotg-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-iot<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-kvm<5.15.0-1060.65
5.15.0-1060.65
ubuntu/linux-kvm<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-laptop<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-lowlatency<5.15.0-110.120
5.15.0-110.120
ubuntu/linux-lowlatency<6.8.0-35.35.1
6.8.0-35.35.1
ubuntu/linux-lowlatency<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-110.120~20.04.1
5.15.0-110.120~20.04.1
ubuntu/linux-lowlatency-hwe-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-lowlatency-hwe-6.5<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-lts-xenial<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-nvidia<5.15.0-1058.59
5.15.0-1058.59
ubuntu/linux-nvidia<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-nvidia-6.5<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-oem-6.5<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-oem-6.8<6.8.0-1006.6
6.8.0-1006.6
ubuntu/linux-oem-6.8<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-oracle<5.15.0-1061.67
5.15.0-1061.67
ubuntu/linux-oracle<6.8.0-1006.6
6.8.0-1006.6
ubuntu/linux-oracle<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-oracle-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-oracle-5.4<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-oracle-6.5<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-raspi<5.15.0-1058.61
5.15.0-1058.61
ubuntu/linux-raspi<6.8.0-1005.5
6.8.0-1005.5
ubuntu/linux-raspi<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-raspi-5.4<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-riscv<6.8.0-35.35.1
6.8.0-35.35.1
ubuntu/linux-riscv<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-riscv-5.15<5.15.0-1059.63~20.04.1
5.15.0-1059.63~20.04.1
ubuntu/linux-riscv-5.15<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-riscv-6.5<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-starfive<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-starfive-6.5<6.9~<6.8.2
6.9~
6.8.2
ubuntu/linux-xilinx-zynqmp<5.15.0-1030.34
5.15.0-1030.34
ubuntu/linux-xilinx-zynqmp<6.9~<6.8.2
6.9~
6.8.2
debian/linux
5.10.218-1
5.10.221-1
6.1.94-1
6.1.99-1
6.9.10-1
6.9.12-1

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