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In the Linux kernel, the following vulnerability has been resolved:
net: ppp: Add bound checking for skb data on ppp_sync_txmung
Ensure we have enough data in linear buffer from skb before accessing initial bytes. This prevents potential out-of-bounds accesses when processing short packets.
When ppp_sync_txmung receives an incoming package with an empty payload: (remote) gef➤ p *(struct pppoe_hdr *) (skb->head + skb->network_header) $18 = { type = 0x1, ver = 0x1, code = 0x0, sid = 0x2, length = 0x0, tag = 0xffff8880371cdb96 }
from the skb struct (trimmed) tail = 0x16, end = 0x140, head = 0xffff88803346f400 "4", data = 0xffff88803346f416 ":\377", truesize = 0x380, len = 0x0, data_len = 0x0, mac_len = 0xe, hdr_len = 0x0,
it is not safe to access data[2].
[[email protected]: fixed subj typo]
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-rtUpgrade libperfUpgrade kernel-rt-modules-extraUpgrade perfUpgrade kernel-rt-64k-debug-modulesUpgrade kernel-headersUpgrade rvUpgrade kernel-cross-headersUpgrade kernel-64k-debug-modules-extraUpgrade kernel-zfcpdump-modules-coreUpgrade python3-perfUpgrade kernel-64k-debug-coreUpgrade kernel-64k-devel-matchedUpgrade kernel-uki-virtUpgrade kernel-devel-matchedUpgrade kernel-abi-stablelistsUpgrade kernel-zfcpdump-modulesUpgrade kernel-64k-debug-devel-matchedUpgrade kernelUpgrade kernel-zfcpdump-coreUpgrade kernel-rt-64k-debug-coreUpgrade kernel-rt-64k-modulesUpgrade kernel-rt-64kUpgrade kernel-debug-devel-matchedUpgrade kernel-rt-64k-debug-develUpgrade kernel-docUpgrade kernel-tools-libs-develUpgrade kernel-rt-debug-modules-extraUpgrade kernel-64k-coreUpgrade kernel-uki-virt-addonsUpgrade kernel-modules-coreUpgrade kernel-toolsUpgrade kernel-64k-debugUpgrade kernel-rt-64k-modules-extraUpgrade kernel-rt-kvmUpgrade kernel-develUpgrade kernel-64k-debug-develUpgrade kernel-rt-64k-debug-modules-coreUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debug-coreUpgrade kernel-rt-modules-coreUpgrade kernel-64k-modules-extraUpgrade kernel-64k-modulesUpgrade kernel-rt-debug-kvmUpgrade kernel-zfcpdumpUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-64k-develUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-coreUpgrade kernel-rt-develUpgrade kernel-debug-modules-extraUpgrade kernel-debugUpgrade kernel-rt-modulesUpgrade kernel-modules-extraUpgrade kernel-rt-coreUpgrade kernel-debug-modulesUpgrade kernel-64kUpgrade kernel-rt-64k-modules-coreUpgrade kernel-debug-modules-coreUpgrade kernel-rt-64k-coreUpgrade kernel-debug-uki-virtUpgrade kernel-debug-coreUpgrade rtlaUpgrade kernel-64k-debug-modulesUpgrade kernel-rt-64k-debugUpgrade kernel-rt-64k-debug-modules-extraUpgrade kernel-64k-develUpgrade kernel-64k-modules-coreUpgrade kernel-modulesUpgrade kernel-rt-debug-modulesUpgrade kernel-64k-debug-modules-coreUpgrade kernel-rt-debugUpgrade kernel-rt-debug-develUpgrade kernel-tools-libsUpgrade kernel-zfcpdump-develUpgrade kernel-debug-devel | May 27, 2025 | May 1, 2025 |
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfoUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade bpftoolUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade kernel-livepatch-5.10.253-251.1014Upgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-tools-develUpgrade bpftool-debuginfoUpgrade kernel-develUpgrade python-perf | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux-6.1Upgrade linux | May 5, 2025 | May 1, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-tools-libsUpgrade bpftoolUpgrade kernelUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Oct 14, 2025 | Oct 10, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernelUpgrade kernel-tools-libsUpgrade bpftoolUpgrade python3-perfUpgrade kernel-toolsUpgrade kernel-abi-stablelists | Nov 12, 2025 | Oct 10, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade python3-perf | Oct 24, 2025 | Oct 10, 2025 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | May 26, 2025 | May 1, 2025 |
| Redhat_linux | — | No solution existsUpgrade kernelUpgrade kernel-rt | May 20, 2025 | May 1, 2025 |
| Rocky_linux | — | Upgrade kernel-debuginfo-common-s390xUpgrade kernel-debug-debuginfoUpgrade kernel-rt-debug-modules-extraUpgrade kernel-modules-extra-matchedUpgrade kernel-devel-matchedUpgrade kernel-zfcpdump-coreUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-modules-coreUpgrade kernel-tools-libsUpgrade perf-debuginfoUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-uki-virt-addonsUpgrade kernel-uki-virtUpgrade kernel-rt-develUpgrade kernel-rtUpgrade kernel-debug-modules-extraUpgrade kernel-rt-modulesUpgrade libperf-debuginfoUpgrade perfUpgrade kernel-rt-debuginfoUpgrade kernel-debug-devel-matchedUpgrade kernel-zfcpdumpUpgrade kernel-debug-modulesUpgrade kernel-rt-debug-modules-coreUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-toolsUpgrade rvUpgrade kernel-debug-modules-coreUpgrade kernel-rt-debug-debuginfoUpgrade kernel-debug-develUpgrade kernel-coreUpgrade python3-perf-debuginfoUpgrade kernel-rt-debugUpgrade kernel-modulesUpgrade kernel-zfcpdump-develUpgrade kernel-rt-debug-coreUpgrade kernel-rt-coreUpgrade python3-perfUpgrade kernel-debuginfoUpgrade kernel-debug-uki-virtUpgrade kernel-debug-coreUpgrade kernel-debugUpgrade kernel-rt-debug-develUpgrade rtlaUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-develUpgrade libperfUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-tools-debuginfoUpgrade kernel-rt-modules-extraUpgrade kernel-rt-debug-modulesUpgrade kernel-modules-extraUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-modules-core | Feb 5, 2026 | Nov 27, 2025 |
| Suse | — | Upgrade kernel-rt-extraUpgrade kernel-default-base-rebuildUpgrade kernel-docsUpgrade dtb-amazonUpgrade dtb-apmUpgrade dtb-broadcomUpgrade kernel-source-rtUpgrade kernel-kvmsmall-develUpgrade kernel-rt_debugUpgrade kselftests-kmp-rtUpgrade gfs2-kmp-64kbUpgrade kernel-rt_debug-vdsoUpgrade kselftests-kmp-azureUpgrade kselftests-kmp-defaultUpgrade kernel-default-livepatchUpgrade kernel-devel-azureUpgrade kernel-kvmsmallUpgrade gfs2-kmp-rtUpgrade kernel-azure-extraUpgrade kernel-macrosUpgrade kernel-syms-azureUpgrade dtb-amlogicUpgrade dtb-rockchipUpgrade reiserfs-kmp-rtUpgrade kernel-rt-vdsoUpgrade dtb-appleUpgrade kernel-obs-qaUpgrade reiserfs-kmp-64kbUpgrade kernel-zfcpdumpUpgrade kernel-rt-livepatch-develUpgrade kernel-syms-rtUpgrade ocfs2-kmp-rtUpgrade kernel-docs-htmlUpgrade kernel-kvmsmall-vdsoUpgrade kernel-rtUpgrade cluster-md-kmp-azureUpgrade dtb-freescaleUpgrade dtb-marvellUpgrade ocfs2-kmp-64kbUpgrade dlm-kmp-azureUpgrade dtb-socionextUpgrade kernel-default-develUpgrade kernel-azure-develUpgrade kernel-default-manUpgrade cluster-md-kmp-defaultUpgrade kernel-azure-vdsoUpgrade dlm-kmp-defaultUpgrade kernel-default-extraUpgrade kernel-obs-buildUpgrade kernel-rt-optionalUpgrade kernel-64kb-optionalUpgrade kernel-rt_debug-develUpgrade dtb-caviumUpgrade kselftests-kmp-64kbUpgrade dtb-exynosUpgrade kernel-default-vdsoUpgrade dtb-qcomUpgrade ocfs2-kmp-defaultUpgrade kernel-default-optionalUpgrade cluster-md-kmp-64kbUpgrade kernel-debugUpgrade kernel-azure-optionalUpgrade dtb-nvidiaUpgrade kernel-source-azureUpgrade gfs2-kmp-azureUpgrade kernel-rt-develUpgrade dtb-allwinnerUpgrade kernel-default-livepatch-develUpgrade dtb-sprdUpgrade kernel-symsUpgrade kernel-develUpgrade dtb-xilinxUpgrade dtb-alteraUpgrade kernel-64kbUpgrade dtb-renesasUpgrade dtb-mediatekUpgrade dtb-lgUpgrade ocfs2-kmp-azureUpgrade kernel-64kb-develUpgrade dlm-kmp-rtUpgrade dlm-kmp-64kbUpgrade gfs2-kmp-defaultUpgrade reiserfs-kmp-azureUpgrade kernel-source-vanillaUpgrade kernel-devel-rtUpgrade kernel-64kb-extraUpgrade dtb-amdUpgrade reiserfs-kmp-defaultUpgrade dtb-armUpgrade cluster-md-kmp-rtUpgrade kernel-debug-vdsoUpgrade kernel-debug-develUpgrade kernel-sourceUpgrade kernel-defaultUpgrade kernel-azureUpgrade dtb-hisiliconUpgrade kernel-default-base | Dec 5, 2025 | Jun 3, 2025 |
| Ubuntu | — | Upgrade linux-image-raspi-6.8Upgrade linux-image-nvidia-tegraUpgrade linux-image-azure-lts-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1046-awsUpgrade linux-image-6.8.0-1023-xilinxUpgrade linux-image-oem-20.04dUpgrade linux-image-fips-5.15Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-azure-lts-24.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-azure-fips-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-ibm-classicUpgrade linux-image-azure-6.8Upgrade linux-image-oem-20.04cUpgrade linux-image-oracle-6.8Upgrade linux-image-oracle-5.15Upgrade linux-image-6.8.0-1046-azure-fipsUpgrade linux-image-6.8.0-1046-azureUpgrade linux-image-ibmUpgrade linux-image-5.15.0-1030-nvidia-tegra-igxUpgrade linux-image-5.15.0-1087-gcp-fipsUpgrade linux-image-xilinx-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-6.8.0-100-genericUpgrade linux-image-gke-6.8Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-6.8.0-100-fipsUpgrade linux-image-oem-20.04bUpgrade linux-image-nvidia-5.15Upgrade linux-image-6.8.0-1043-gkeUpgrade linux-image-5.15.0-1080-ibmUpgrade linux-image-raspi-5.15Upgrade linux-image-5.15.0-1087-gcpUpgrade linux-image-6.8.0-1047-raspiUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.8.0-1046-nvidia-lowlatency-64kUpgrade linux-image-oracle-64kUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-fips-6.8Upgrade linux-image-raspiUpgrade linux-image-genericUpgrade linux-image-azure-5.15Upgrade linux-image-azureUpgrade linux-image-intelUpgrade linux-image-lowlatency-5.15Upgrade linux-image-realtime-6.8.1Upgrade linux-image-gke-64k-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-5.15.0-144-lowlatency-64kUpgrade linux-image-azure-fips-5.15Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-aws-6.8Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.8.0-1047-gcpUpgrade linux-image-gcpUpgrade linux-image-generic-64kUpgrade linux-image-5.15.0-1084-kvmUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1043-oracleUpgrade linux-image-oem-22.04Upgrade linux-image-5.15.0-144-genericUpgrade linux-image-xilinxUpgrade linux-image-5.15.0-144-lowlatencyUpgrade linux-image-5.15.0-1088-aws-64kUpgrade linux-image-5.15.0-1041-nvidia-tegra-rtUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-gkeUpgrade linux-image-6.8.0-1046-aws-fipsUpgrade linux-image-oem-20.04Upgrade linux-image-5.15.0-144-generic-lpaeUpgrade linux-image-6.14.0-1007-aws-64kUpgrade linux-image-6.8.0-100-lowlatency-64kUpgrade linux-image-virtual-6.8Upgrade linux-image-6.14.0-22-generic-64kUpgrade linux-image-kvm-5.15Upgrade linux-image-nvidiaUpgrade linux-image-lowlatencyUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-aws-64kUpgrade linux-image-6.14.0-1008-gcpUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-gke-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-5.15.0-1082-nvidiaUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-gcp-fipsUpgrade linux-image-oem-22.04aUpgrade linux-image-5.15.0-1085-oracleUpgrade linux-image-generic-lpaeUpgrade linux-image-5.15.0-1088-awsUpgrade linux-image-raspi-realtimeUpgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-64kUpgrade linux-image-realtime-5.15Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-5.15.0-1083-raspiUpgrade linux-image-gkeopUpgrade linux-image-awsUpgrade linux-image-6.8.1-1041-realtimeUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-6.8.0-1046-nvidia-64kUpgrade linux-image-6.8.0-1047-gcp-64kUpgrade linux-image-kvmUpgrade linux-image-gke-64kUpgrade linux-image-5.15.0-144-generic-64kUpgrade linux-image-raspi-nolpaeUpgrade linux-image-generic-6.8Upgrade linux-image-fipsUpgrade linux-image-realtimeUpgrade linux-image-5.15.0-1070-gkeopUpgrade linux-image-oem-22.04bUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-5.15.0-1082-nvidia-lowlatencyUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-ibm-5.15Upgrade linux-image-6.8.0-1046-aws-64kUpgrade linux-image-azure-fipsUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1085-gkeUpgrade linux-image-5.15.0-1094-azureUpgrade linux-image-5.15.0-1083-intel-iotgUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-5.15.0-1041-nvidia-tegraUpgrade linux-image-6.14.0-1007-awsUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-5.15.0-144-fipsUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-6.8.0-1043-oracle-64kUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.14.0-1004-realtimeUpgrade linux-image-6.14.0-1007-azureUpgrade linux-image-aws-fipsUpgrade linux-image-6.8.0-1046-nvidia-lowlatencyUpgrade linux-image-generic-5.15Upgrade linux-image-virtual-5.15Upgrade linux-image-ibm-6.8Upgrade linux-image-azure-cvmUpgrade linux-image-6.8.0-1047-gcp-fipsUpgrade linux-image-5.15.0-1030-nvidia-tegra-igx-rtUpgrade linux-image-lowlatency-6.8Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-5.15.0-1052-xilinx-zynqmpUpgrade linux-image-6.8.0-1043-gke-64kUpgrade linux-image-generic-64k-5.15Upgrade linux-image-gcp-6.8Upgrade linux-image-aws-5.15Upgrade linux-image-aws-fips-5.15Upgrade linux-image-aws-fips-6.8Upgrade linux-image-5.15.0-1081-intel-iot-realtimeUpgrade linux-image-6.14.0-1007-raspiUpgrade linux-image-6.14.0-1007-oracle-64kUpgrade linux-image-virtualUpgrade linux-image-6.14.0-1007-oracleUpgrade linux-image-6.14.0-22-genericUpgrade linux-image-6.8.0-2037-raspi-realtimeUpgrade linux-image-5.15.0-1094-azure-fipsUpgrade linux-image-aws-64k-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-gcp-5.15Upgrade linux-image-generic-64k-6.8Upgrade linux-image-aws-64k-5.15Upgrade linux-image-6.8.0-1030-gkeopUpgrade linux-image-6.8.0-100-lowlatencyUpgrade linux-image-5.15.0-1088-realtimeUpgrade linux-image-5.15.0-1088-aws-fipsUpgrade linux-image-oracleUpgrade linux-image-azure-fdeUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-6.8.0-1046-nvidiaUpgrade linux-image-aws-lts-24.04Upgrade linux-image-6.14.0-1008-gcp-64kUpgrade linux-image-6.8.0-1044-ibmUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-6.14.0-1007-azure-fdeUpgrade linux-image-6.8.0-100-generic-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-nvidia-lowlatency-5.15 | Jun 26, 2025 | May 1, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2025 | May 1, 2025 |
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