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Ubuntu: (Multiple Advisories) (CVE-2024-26884): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2024-26884): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/17/2024
Created
07/02/2024
Added
07/01/2024
Modified
08/12/2024

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix hashtab overflow check on 32-bit arches The hashtab code relies on roundup_pow_of_two() to compute the number of hash buckets, and contains an overflow check by checking if the resulting value is 0. However, on 32-bit arches, the roundup code itself can overflow by doing a 32-bit left-shift of an unsigned long value, which is undefined behaviour, so it is not guaranteed to truncate neatly. This was triggered by syzbot on the DEVMAP_HASH type, which contains the same check, copied from the hashtab code. So apply the same fix to hashtab, by moving the overflow check to before the roundup.

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1133-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1154-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1164-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1170-aws
  • ubuntu-upgrade-linux-image-4-15-0-1179-azure
  • ubuntu-upgrade-linux-image-4-15-0-227-generic
  • ubuntu-upgrade-linux-image-4-15-0-227-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-1134-aws
  • ubuntu-upgrade-linux-image-4-4-0-1135-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1172-aws
  • ubuntu-upgrade-linux-image-4-4-0-257-generic
  • ubuntu-upgrade-linux-image-4-4-0-257-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-1030-xilinx-zynqmp
  • ubuntu-upgrade-linux-image-5-15-0-1046-gkeop
  • ubuntu-upgrade-linux-image-5-15-0-1056-ibm
  • ubuntu-upgrade-linux-image-5-15-0-1057-ibm
  • ubuntu-upgrade-linux-image-5-15-0-1058-intel-iotg
  • ubuntu-upgrade-linux-image-5-15-0-1058-nvidia
  • ubuntu-upgrade-linux-image-5-15-0-1058-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-1058-raspi
  • ubuntu-upgrade-linux-image-5-15-0-1060-gke
  • ubuntu-upgrade-linux-image-5-15-0-1060-kvm
  • ubuntu-upgrade-linux-image-5-15-0-1061-oracle
  • ubuntu-upgrade-linux-image-5-15-0-1062-gcp
  • ubuntu-upgrade-linux-image-5-15-0-1063-aws
  • ubuntu-upgrade-linux-image-5-15-0-1065-azure-fde
  • ubuntu-upgrade-linux-image-5-15-0-1066-azure
  • ubuntu-upgrade-linux-image-5-15-0-110-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-110-lowlatency-64k
  • ubuntu-upgrade-linux-image-5-15-0-112-generic
  • ubuntu-upgrade-linux-image-5-15-0-112-generic-64k
  • ubuntu-upgrade-linux-image-5-15-0-112-generic-lpae
  • ubuntu-upgrade-linux-image-5-15-0-113-generic
  • ubuntu-upgrade-linux-image-5-15-0-113-generic-64k
  • ubuntu-upgrade-linux-image-5-15-0-113-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-1040-iot
  • ubuntu-upgrade-linux-image-5-4-0-1047-xilinx-zynqmp
  • ubuntu-upgrade-linux-image-5-4-0-1075-ibm
  • ubuntu-upgrade-linux-image-5-4-0-1088-bluefield
  • ubuntu-upgrade-linux-image-5-4-0-1095-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1112-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1116-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1127-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1128-aws
  • ubuntu-upgrade-linux-image-5-4-0-1132-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1133-azure
  • ubuntu-upgrade-linux-image-5-4-0-189-generic
  • ubuntu-upgrade-linux-image-5-4-0-189-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-189-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-1004-gke
  • ubuntu-upgrade-linux-image-6-8-0-1005-raspi
  • ubuntu-upgrade-linux-image-6-8-0-1006-ibm
  • ubuntu-upgrade-linux-image-6-8-0-1006-oem
  • ubuntu-upgrade-linux-image-6-8-0-1006-oracle
  • ubuntu-upgrade-linux-image-6-8-0-1006-oracle-64k
  • ubuntu-upgrade-linux-image-6-8-0-1008-azure
  • ubuntu-upgrade-linux-image-6-8-0-1008-azure-fde
  • ubuntu-upgrade-linux-image-6-8-0-1008-gcp
  • ubuntu-upgrade-linux-image-6-8-0-1009-aws
  • ubuntu-upgrade-linux-image-6-8-0-35-generic
  • ubuntu-upgrade-linux-image-6-8-0-35-generic-64k
  • ubuntu-upgrade-linux-image-6-8-0-35-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-35-lowlatency-64k
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-hwe
  • ubuntu-upgrade-linux-image-aws-lts-18-04
  • ubuntu-upgrade-linux-image-aws-lts-20-04
  • ubuntu-upgrade-linux-image-aws-lts-22-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-fde
  • ubuntu-upgrade-linux-image-azure-fde-lts-22-04
  • ubuntu-upgrade-linux-image-azure-lts-18-04
  • ubuntu-upgrade-linux-image-azure-lts-20-04
  • ubuntu-upgrade-linux-image-azure-lts-22-04
  • ubuntu-upgrade-linux-image-bluefield
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-18-04
  • ubuntu-upgrade-linux-image-gcp-lts-20-04
  • ubuntu-upgrade-linux-image-gcp-lts-22-04
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-64k-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-5-15
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-15
  • ubuntu-upgrade-linux-image-gkeop-5-4
  • ubuntu-upgrade-linux-image-ibm
  • ubuntu-upgrade-linux-image-ibm-classic
  • ubuntu-upgrade-linux-image-ibm-lts-20-04
  • ubuntu-upgrade-linux-image-ibm-lts-24-04
  • ubuntu-upgrade-linux-image-intel
  • ubuntu-upgrade-linux-image-intel-iotg
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-64k
  • ubuntu-upgrade-linux-image-lowlatency-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-nvidia
  • ubuntu-upgrade-linux-image-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oem-20-04
  • ubuntu-upgrade-linux-image-oem-20-04b
  • ubuntu-upgrade-linux-image-oem-20-04c
  • ubuntu-upgrade-linux-image-oem-20-04d
  • ubuntu-upgrade-linux-image-oem-24-04
  • ubuntu-upgrade-linux-image-oem-24-04a
  • ubuntu-upgrade-linux-image-oem-osp1
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-64k
  • ubuntu-upgrade-linux-image-oracle-lts-18-04
  • ubuntu-upgrade-linux-image-oracle-lts-20-04
  • ubuntu-upgrade-linux-image-oracle-lts-22-04
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-raspi-hwe-18-04
  • ubuntu-upgrade-linux-image-raspi-nolpae
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-16-04
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04
  • ubuntu-upgrade-linux-image-virtual-hwe-24-04
  • ubuntu-upgrade-linux-image-virtual-lts-xenial
  • ubuntu-upgrade-linux-image-xilinx-zynqmp

References

  • https://attackerkb.com/topics/cve-2024-26884
  • CVE - 2024-26884
  • USN-6816-1
  • USN-6817-1
  • USN-6817-2
  • USN-6817-3
  • USN-6820-1
  • USN-6820-2
  • USN-6821-1
  • USN-6821-2
  • USN-6821-3
  • USN-6821-4
  • USN-6828-1
  • USN-6871-1
  • USN-6878-1
  • USN-6892-1
  • USN-6896-1
  • USN-6896-2
  • USN-6896-3
  • USN-6896-4
  • USN-6896-5
  • USN-6919-1
  • USN-6926-1
  • USN-6926-2
  • USN-6926-3
  • USN-6938-1
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