Ubuntu: (Multiple Advisories) (CVE-2024-36244): Linux kernel vulnerabilities
Description
In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: extend minimum interval restriction to entire cycle too It is possible for syzbot to side-step the restriction imposed by the blamed commit in the Fixes: tag, because the taprio UAPI permits a cycle-time different from (and potentially shorter than) the sum of entry intervals. We need one more restriction, which is that the cycle time itself must be larger than N * ETH_ZLEN bit times, where N is the number of schedule entries. This restriction needs to apply regardless of whether the cycle time came from the user or was the implicit, auto-calculated value, so we move the existing "cycle == 0" check outside the "if "(!new->cycle_time)" branch. This way covers both conditions and scenarios. Add a selftest which illustrates the issue triggered by syzbot.
Solution(s)
- ubuntu-upgrade-linux-image-6-8-0-1010-gke
- ubuntu-upgrade-linux-image-6-8-0-1011-raspi
- ubuntu-upgrade-linux-image-6-8-0-1012-ibm
- ubuntu-upgrade-linux-image-6-8-0-1012-oem
- ubuntu-upgrade-linux-image-6-8-0-1012-oracle
- ubuntu-upgrade-linux-image-6-8-0-1012-oracle-64k
- ubuntu-upgrade-linux-image-6-8-0-1013-nvidia
- ubuntu-upgrade-linux-image-6-8-0-1013-nvidia-64k
- ubuntu-upgrade-linux-image-6-8-0-1013-nvidia-lowlatency
- ubuntu-upgrade-linux-image-6-8-0-1013-nvidia-lowlatency-64k
- ubuntu-upgrade-linux-image-6-8-0-1014-azure
- ubuntu-upgrade-linux-image-6-8-0-1014-azure-fde
- ubuntu-upgrade-linux-image-6-8-0-1014-gcp
- ubuntu-upgrade-linux-image-6-8-0-1015-aws
- ubuntu-upgrade-linux-image-6-8-0-44-generic
- ubuntu-upgrade-linux-image-6-8-0-44-generic-64k
- ubuntu-upgrade-linux-image-6-8-0-44-lowlatency
- ubuntu-upgrade-linux-image-6-8-0-44-lowlatency-64k
- ubuntu-upgrade-linux-image-6-8-0-45-generic
- ubuntu-upgrade-linux-image-6-8-0-45-generic-64k
- ubuntu-upgrade-linux-image-aws
- ubuntu-upgrade-linux-image-azure
- ubuntu-upgrade-linux-image-azure-fde
- ubuntu-upgrade-linux-image-gcp
- ubuntu-upgrade-linux-image-generic
- ubuntu-upgrade-linux-image-generic-64k
- ubuntu-upgrade-linux-image-generic-64k-hwe-22-04
- ubuntu-upgrade-linux-image-generic-64k-hwe-24-04
- ubuntu-upgrade-linux-image-generic-hwe-22-04
- ubuntu-upgrade-linux-image-generic-hwe-24-04
- ubuntu-upgrade-linux-image-generic-lpae
- ubuntu-upgrade-linux-image-gke
- ubuntu-upgrade-linux-image-ibm
- ubuntu-upgrade-linux-image-ibm-classic
- ubuntu-upgrade-linux-image-ibm-lts-24-04
- ubuntu-upgrade-linux-image-kvm
- ubuntu-upgrade-linux-image-lowlatency
- ubuntu-upgrade-linux-image-lowlatency-64k
- ubuntu-upgrade-linux-image-lowlatency-64k-hwe-22-04
- ubuntu-upgrade-linux-image-lowlatency-hwe-22-04
- ubuntu-upgrade-linux-image-nvidia
- ubuntu-upgrade-linux-image-nvidia-6-8
- ubuntu-upgrade-linux-image-nvidia-64k
- ubuntu-upgrade-linux-image-nvidia-64k-6-8
- ubuntu-upgrade-linux-image-nvidia-lowlatency
- ubuntu-upgrade-linux-image-nvidia-lowlatency-64k
- ubuntu-upgrade-linux-image-oem-22-04
- ubuntu-upgrade-linux-image-oem-22-04a
- ubuntu-upgrade-linux-image-oem-22-04b
- ubuntu-upgrade-linux-image-oem-22-04c
- ubuntu-upgrade-linux-image-oem-22-04d
- ubuntu-upgrade-linux-image-oracle
- ubuntu-upgrade-linux-image-oracle-64k
- ubuntu-upgrade-linux-image-raspi
- ubuntu-upgrade-linux-image-virtual
- ubuntu-upgrade-linux-image-virtual-hwe-22-04
- ubuntu-upgrade-linux-image-virtual-hwe-24-04
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