In the Linux kernel, the following vulnerability has been resolved:
net: openvswitch: fix possible kfree_skb of ERR_PTR
After the patch in the "Fixes" tag, the allocation of the "reply" skb can happen either before or after locking the ovs_mutex.
However, error cleanups still follow the classical reversed order, assuming "reply" is allocated before locking: it is freed after unlocking.
If "reply" allocation happens after locking the mutex and it fails, "reply" is left with an ERR_PTR, and execution jumps to the correspondent cleanup stage which will try to free an invalid pointer.
Fix this by setting the pointer to NULL after having saved its error value.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade perfUpgrade python-perf-debuginfoUpgrade python-perfUpgrade kernel-headersUpgrade kernel-tools-develUpgrade perf-debuginfoUpgrade kernel-livepatch-5.15.210-148.245Upgrade kernelUpgrade kernel-debuginfoUpgrade bpftoolUpgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.10.259-258.1043Upgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-devel | Jul 8, 2026 | Jul 8, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel6.12Upgrade kernel-debuginfo-common-aarch64Upgrade perf6.12Upgrade bpftool6.18-debuginfoUpgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel-livepatch-6.18.36-69.134Upgrade kernel6.12-headersUpgrade kernel6.18-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade perf-debuginfoUpgrade bpftool6.12-debuginfoUpgrade kernel-livepatch-6.12.94-123.174Upgrade kernel-modules-extra-commonUpgrade kernel6.18-debuginfo-common-aarch64Upgrade bpftoolUpgrade bpftool-debuginfoUpgrade bpftool6.18Upgrade kernel-toolsUpgrade bpftool6.12Upgrade kernel6.18-develUpgrade kernel6.12-tools-develUpgrade kernel6.12-debuginfoUpgrade python3-perf6.18-debuginfoUpgrade kernel6.18-modules-extraUpgrade kernel6.12-modules-extraUpgrade python3-perf6.12-debuginfoUpgrade perfUpgrade kernel-debuginfoUpgrade kernelUpgrade python3-perf6.18Upgrade microvm-kernel6.18Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-livepatch-6.1.176-220.358Upgrade kernel6.12-debuginfo-common-aarch64Upgrade perf6.18-debuginfoUpgrade kernel6.12-develUpgrade kernel-develUpgrade python3-perf6.12Upgrade kernel-tools-develUpgrade kernel6.18-tools-debuginfoUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.18-modules-extra-commonUpgrade python3-perf-debuginfoUpgrade kernel6.18-headersUpgrade kernel6.18-toolsUpgrade perf6.18Upgrade kernel6.18-tools-develUpgrade kernel-tools-debuginfoUpgrade kernel6.12-toolsUpgrade kernel6.18Upgrade kernel-headersUpgrade perf6.12-debuginfoUpgrade python3-perfUpgrade kernel-modules-extra | Jul 8, 2026 | Jun 25, 2026 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Jul 5, 2026 | Jul 5, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Jun 25, 2026 |
| Ubuntu | — | Upgrade linux-image-7.0.0-31-realtime-64kUpgrade linux-image-gcp-64kUpgrade linux-image-ibmUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-7.0.0-1013-ibmUpgrade linux-image-gke-64kUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-ibm-7.0Upgrade linux-image-7.0.0-31-realtimeUpgrade linux-image-azureUpgrade linux-image-nvidia-bos-64kUpgrade linux-image-oem-26.04Upgrade linux-image-7.0.0-1006-gkeUpgrade linux-image-nvidiaUpgrade linux-image-azure-lts-26.04Upgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-7.0.0-31-genericUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-genericUpgrade linux-image-generic-64kUpgrade linux-image-gke-64k-7.0Upgrade linux-image-nvidia-bosUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-oem-26.04bUpgrade linux-image-nvidia-7.0Upgrade linux-image-7.0.0-1012-awsUpgrade linux-image-7.0.0-1012-aws-64kUpgrade linux-image-7.0.0-1018-nvidiaUpgrade linux-image-7.0.0-2018-nvidia-bosUpgrade linux-image-raspiUpgrade linux-image-7.0.0-2018-nvidia-bos-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-oem-26.04aUpgrade linux-image-oem-7.0Upgrade linux-image-oracle-7.0Upgrade linux-image-azure-7.0Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-virtualUpgrade linux-image-7.0.0-1013-oemUpgrade linux-image-7.0.0-1019-raspi-realtimeUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-realtimeUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-gke-7.0Upgrade linux-image-gcp-7.0Upgrade linux-image-virtual-7.0Upgrade linux-image-realtime-hwe-26.04Upgrade linux-image-generic-7.0Upgrade linux-image-7.0.0-1014-azureUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-oracle-64kUpgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-1018-nvidia-64kUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-7.0.0-1019-raspiUpgrade linux-image-oracleUpgrade linux-image-awsUpgrade linux-image-7.0.0-1006-gke-64kUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-nvidia-64kUpgrade linux-image-gkeUpgrade linux-image-7.0.0-31-generic-64kUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-realtime-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-realtime-7.0Upgrade linux-image-raspi-realtimeUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-gcpUpgrade linux-image-aws-64kUpgrade linux-image-raspi-7.0Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-generic-64k-7.0Upgrade linux-image-aws-7.0 | Sep 14, 2026 | Sep 7, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 10, 2026 | Jun 25, 2026 |
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