In the Linux kernel, the following vulnerability has been resolved:
bpf: Avoid splat in pskb_pull_reason
syzkaller builds (CONFIG_DEBUG_NET=y) frequently trigger a debug hint in pskb_may_pull.
We'd like to retain this debug check because it might hint at integer overflows and other issues (kernel code should pull headers, not huge value).
In bpf case, this splat isn't interesting at all: such (nonsensical) bpf programs are typically generated by a fuzzer anyway.
Do what Eric suggested and suppress such warning.
For CONFIG_DEBUG_NET=n we don't need the extra check because pskb_may_pull will do the right thing: return an error without the WARN() backtrace.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-modules-extra-commonUpgrade kernel-libbpf-staticUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-debuginfoUpgrade perfUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernelUpgrade python3-perfUpgrade kernel-headersUpgrade kernel-develUpgrade kernel-tools-develUpgrade kernel-libbpfUpgrade kernel-livepatch-6.1.96-102.177Upgrade kernel-modules-extraUpgrade kernel-libbpf-develUpgrade python3-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-aarch64 | Mar 27, 2025 | Jul 12, 2024 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Jul 18, 2024 | Jul 12, 2024 |
| Suse | — | Upgrade kernel-obs-buildUpgrade kernel-sourceUpgrade kernel-macrosUpgrade kernel-docsUpgrade kernel-64kbUpgrade kernel-defaultUpgrade kernel-64kb-develUpgrade kernel-zfcpdumpUpgrade kernel-symsUpgrade kernel-develUpgrade reiserfs-kmp-defaultUpgrade kernel-default-devel | Dec 5, 2025 | Dec 5, 2025 |
| Ubuntu | — | Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-oracleUpgrade linux-image-oem-22.04dUpgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-1011-raspiUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-awsUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1013-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1012-ibmUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-virtualUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-44-generic-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.8.0-1012-oracle-64kUpgrade linux-image-6.8.0-44-lowlatencyUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1014-azureUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-kvmUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-1010-gkeUpgrade linux-image-6.8.0-44-lowlatency-64kUpgrade linux-image-generic-64kUpgrade linux-image-generic-lpaeUpgrade linux-image-genericUpgrade linux-image-gkeUpgrade linux-image-6.8.0-44-genericUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-1015-awsUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1013-nvidia-64kUpgrade linux-image-gcpUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.8.0-45-generic-64kUpgrade linux-image-lowlatencyUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-nvidiaUpgrade linux-image-ibmUpgrade linux-image-6.8.0-1013-nvidia-lowlatencyUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-1013-nvidiaUpgrade linux-image-6.8.0-1012-oracleUpgrade linux-image-raspiUpgrade linux-image-6.8.0-1014-azure-fdeUpgrade linux-image-oem-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-1012-oemUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-45-genericUpgrade linux-image-oem-22.04cUpgrade linux-image-azureUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1014-gcp | Sep 12, 2024 | Jul 12, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jul 12, 2024 |
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