In the Linux kernel, the following vulnerability has been resolved:
ionic: fix use after netif_napi_del()
When queues are started, netif_napi_add() and napi_enable() are called. If there are 4 queues and only 3 queues are used for the current configuration, only 3 queues' napi should be registered and enabled. The ionic_qcq_enable() checks whether the .poll pointer is not NULL for enabling only the using queue' napi. Unused queues' napi will not be registered by netif_napi_add(), so the .poll pointer indicates NULL. But it couldn't distinguish whether the napi was unregistered or not because netif_napi_del() doesn't reset the .poll pointer to NULL. So, ionic_qcq_enable() calls napi_enable() for the queue, which was unregistered by netif_napi_del().
Reproducer: ethtool -L <interface name> rx 1 tx 1 combined 0 ethtool -L <interface name> rx 0 tx 0 combined 1 ethtool -L <interface name> rx 0 tx 0 combined 4
Splat looks like: kernel BUG at net/core/dev.c:6666! Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 1057 Comm: kworker/3:3 Not tainted 6.10.0-rc2+ #16 Workqueue: events ionic_lif_deferred_work [ionic] RIP: 0010:napi_enable+0x3b/0x40 Code: 48 89 c2 48 83 e2 f6 80 b9 61 09 00 00 00 74 0d 48 83 bf 60 01 00 00 00 74 03 80 ce 01 f0 4f RSP: 0018:ffffb6ed83227d48 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff97560cda0828 RCX: 0000000000000029 RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff97560cda0a28 RBP: ffffb6ed83227d50 R08: 0000000000000400 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: ffff97560ce3c1a0 R14: 0000000000000000 R15: ffff975613ba0a20 FS: 0000000000000000(0000) GS:ffff975d5f780000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8f734ee200 CR3: 0000000103e50000 CR4: 00000000007506f0 PKRU: 55555554 Call Trace: <TASK> ? die+0x33/0x90 ? do_trap+0xd9/0x100 ? napi_enable+0x3b/0x40 ? do_error_trap+0x83/0xb0 ? napi_enable+0x3b/0x40 ? napi_enable+0x3b/0x40 ? exc_invalid_op+0x4e/0x70 ? napi_enable+0x3b/0x40 ? asm_exc_invalid_op+0x16/0x20 ? napi_enable+0x3b/0x40 ionic_qcq_enable+0xb7/0x180 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8] ionic_start_queues+0xc4/0x290 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8] ionic_link_status_check+0x11c/0x170 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8] ionic_lif_deferred_work+0x129/0x280 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8] process_one_work+0x145/0x360 worker_thread+0x2bb/0x3d0 ? __pfx_worker_thread+0x10/0x10 kthread+0xcc/0x100 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2d/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-rt-modules-extraUpgrade kernel-64k-debug-develUpgrade kernel-modules-extraUpgrade kernel-docUpgrade kernel-debugUpgrade kernel-develUpgrade kernel-rt-modulesUpgrade kernel-tools-libsUpgrade kernel-64k-develUpgrade kernel-64k-modules-extraUpgrade kernel-rt-debugUpgrade kernel-rt-coreUpgrade kernel-rt-debug-modules-extraUpgrade bpftoolUpgrade kernel-debug-uki-virtUpgrade kernel-rt-kvmUpgrade kernel-toolsUpgrade kernel-rt-debug-coreUpgrade kernel-64k-debug-modules-coreUpgrade python3-perfUpgrade kernel-rt-develUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rtUpgrade kernel-64k-modules-coreUpgrade perfUpgrade kernel-debug-modules-coreUpgrade kernel-debug-coreUpgrade kernel-64k-debug-modulesUpgrade rvUpgrade kernel-rt-debug-modulesUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-rt-debug-modules-coreUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-debug-develUpgrade kernel-64k-debug-modules-extraUpgrade kernel-64k-devel-matchedUpgrade kernel-rt-modules-coreUpgrade kernel-debug-modules-extraUpgrade kernel-abi-stablelistsUpgrade kernel-debug-devel-matchedUpgrade kernel-rt-debug-develUpgrade kernel-zfcpdump-coreUpgrade kernel-64k-modulesUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdumpUpgrade kernel-64kUpgrade kernel-uki-virtUpgrade kernel-zfcpdump-develUpgrade kernel-headersUpgrade kernel-64k-coreUpgrade kernel-rt-debug-kvmUpgrade kernel-modulesUpgrade kernel-devel-matchedUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-coreUpgrade kernel-64k-debug-coreUpgrade kernel-zfcpdump-modulesUpgrade kernel-64k-debugUpgrade libperfUpgrade kernel-debug-modulesUpgrade kernel-modules-coreUpgrade kernel-cross-headersUpgrade rtlaUpgrade kernel | Aug 12, 2024 | Jul 12, 2024 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jul 17, 2024 | Jul 12, 2024 |
| Oracle_linux | — | Upgrade kernelUpgrade kernel-uek | Aug 16, 2024 | Jul 12, 2024 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernelNo solution exists | Aug 12, 2024 | Jul 12, 2024 |
| Rocky_linux | — | Upgrade kernel-zfcpdump-coreUpgrade bpftool-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-zfcpdump-develUpgrade kernel-rt-debug-kvmUpgrade kernel-debug-devel-matchedUpgrade kernel-debug-develUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdumpUpgrade rtlaUpgrade kernel-cross-headersUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-modules-coreUpgrade kernel-rt-debug-debuginfoUpgrade kernel-debug-modules-coreUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-zfcpdump-modulesUpgrade kernel-rt-modules-extraUpgrade kernel-debug-debuginfoUpgrade kernel-debug-modules-extraUpgrade kernel-headersUpgrade kernel-rt-debug-coreUpgrade kernelUpgrade kernel-rt-debug-develUpgrade kernel-coreUpgrade kernel-modules-extraUpgrade kernel-devel-matchedUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-tools-libsUpgrade kernel-debug-modulesUpgrade kernel-rt-modules-coreUpgrade kernel-rt-debug-modulesUpgrade libperf-debuginfoUpgrade kernel-rt-develUpgrade kernel-debugUpgrade rvUpgrade kernel-zfcpdump-debuginfoUpgrade perfUpgrade kernel-rt-debugUpgrade kernel-debuginfoUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-kvmUpgrade perf-debuginfoUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-modulesUpgrade kernel-develUpgrade libperfUpgrade kernel-uki-virtUpgrade python3-perfUpgrade kernel-tools-debuginfoUpgrade kernel-rt-debug-modules-extraUpgrade kernel-debug-uki-virtUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rtUpgrade kernel-rt-debuginfoUpgrade bpftoolUpgrade kernel-rt-modulesUpgrade kernel-toolsUpgrade kernel-rt-coreUpgrade kernel-debug-core | Aug 22, 2024 | Jul 12, 2024 |
| Suse | — | Upgrade kernel-debug-vdsoUpgrade kernel-rt-extraUpgrade reiserfs-kmp-64kbUpgrade dtb-appleUpgrade kernel-azure-extraUpgrade gfs2-kmp-azureUpgrade dtb-caviumUpgrade kernel-source-rtUpgrade kselftests-kmp-defaultUpgrade dlm-kmp-azureUpgrade reiserfs-kmp-defaultUpgrade dtb-renesasUpgrade kernel-64kb-extraUpgrade dtb-nvidiaUpgrade kernel-default-livepatch-develUpgrade kernel-obs-buildUpgrade kernel-debug-develUpgrade kernel-docsUpgrade dtb-hisiliconUpgrade kselftests-kmp-rtUpgrade kernel-devel-rtUpgrade dtb-broadcomUpgrade dtb-socionextUpgrade kernel-default-optionalUpgrade kernel-64kb-optionalUpgrade kernel-docs-htmlUpgrade dtb-marvellUpgrade reiserfs-kmp-rtUpgrade kernel-azureUpgrade kernel-debugUpgrade kernel-rt_debugUpgrade ocfs2-kmp-defaultUpgrade dtb-armUpgrade dtb-xilinxUpgrade kernel-64kb-develUpgrade dlm-kmp-defaultUpgrade gfs2-kmp-defaultUpgrade kernel-source-vanillaUpgrade ocfs2-kmp-azureUpgrade dtb-allwinnerUpgrade dtb-amdUpgrade kernel-rt_debug-livepatch-develUpgrade dlm-kmp-rtUpgrade dtb-sprdUpgrade kernel-rt-optionalUpgrade kernel-default-baseUpgrade kselftests-kmp-azureUpgrade cluster-md-kmp-64kbUpgrade kernel-defaultUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-develUpgrade dtb-rockchipUpgrade ocfs2-kmp-64kbUpgrade kernel-source-azureUpgrade kernel-obs-qaUpgrade kernel-azure-vdsoUpgrade kernel-rt-develUpgrade dtb-amlogicUpgrade dtb-mediatekUpgrade cluster-md-kmp-rtUpgrade kernel-azure-develUpgrade kernel-syms-rtUpgrade dlm-kmp-64kbUpgrade kernel-kvmsmall-vdsoUpgrade dtb-amazonUpgrade kernel-kvmsmall-develUpgrade kernel-kvmsmallUpgrade kernel-rt-vdsoUpgrade kernel-macrosUpgrade kernel-rt_debug-develUpgrade kernel-azure-optionalUpgrade kselftests-kmp-64kbUpgrade kernel-syms-azureUpgrade kernel-rtUpgrade kernel-devel-azureUpgrade kernel-64kb-livepatch-develUpgrade kernel-64kbUpgrade dtb-qcomUpgrade cluster-md-kmp-defaultUpgrade gfs2-kmp-64kbUpgrade kernel-rt_debug-vdsoUpgrade ocfs2-kmp-rtUpgrade dtb-freescaleUpgrade dtb-exynosUpgrade cluster-md-kmp-azureUpgrade kernel-zfcpdumpUpgrade kernel-rt-livepatch-develUpgrade kernel-rt-livepatchUpgrade kernel-default-develUpgrade gfs2-kmp-rtUpgrade kernel-default-extraUpgrade kernel-azure-livepatch-develUpgrade dtb-apmUpgrade kernel-default-vdsoUpgrade dtb-lgUpgrade reiserfs-kmp-azureUpgrade kernel-symsUpgrade kernel-sourceUpgrade kernel-default-livepatchUpgrade kernel-default-base-rebuildUpgrade kernel-debug-livepatch-develUpgrade dtb-altera | Aug 8, 2024 | Jul 12, 2024 |
| Ubuntu | — | Upgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-raspi-hwe-18.04Upgrade linux-image-oem-osp1Upgrade linux-image-6.8.0-1013-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1068-gcpUpgrade linux-image-generic-64kUpgrade linux-image-generic-lpaeUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-5.4.0-1051-xilinx-zynqmpUpgrade linux-image-5.15.0-121-genericUpgrade linux-image-6.8.0-1011-raspiUpgrade linux-image-5.15.0-121-generic-lpaeUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-azure-cvmUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-5.4.0-195-lowlatencyUpgrade linux-image-5.15.0-1035-xilinx-zynqmpUpgrade linux-image-oracleUpgrade linux-image-gkeopUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-oem-22.04bUpgrade linux-image-bluefieldUpgrade linux-image-virtualUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-5.4.0-195-genericUpgrade linux-image-5.15.0-1072-azureUpgrade linux-image-oracle-64kUpgrade linux-image-gkeop-5.4Upgrade linux-image-6.8.0-1014-azureUpgrade linux-image-5.15.0-121-lowlatencyUpgrade linux-image-gcp-lts-20.04Upgrade linux-image-5.4.0-1137-azureUpgrade linux-image-6.8.0-1012-oracle-64kUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-6.8.0-1013-nvidia-64kUpgrade linux-image-gke-5.15Upgrade linux-image-oem-20.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-nvidia-64kUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-genericUpgrade linux-image-5.4.0-1136-gcpUpgrade linux-image-5.4.0-1116-raspiUpgrade linux-image-raspi2Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-ibm-classicUpgrade linux-image-5.4.0-1132-awsUpgrade linux-image-5.15.0-1062-ibmUpgrade linux-image-oem-20.04dUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-intelUpgrade linux-image-gcpUpgrade linux-image-6.8.0-44-lowlatency-64kUpgrade linux-image-5.15.0-1066-kvmUpgrade linux-image-kvmUpgrade linux-image-raspi2-hwe-18.04Upgrade linux-image-5.15.0-1062-raspiUpgrade linux-image-6.8.0-1013-nvidiaUpgrade linux-image-5.4.0-195-generic-lpaeUpgrade linux-image-gkeUpgrade linux-image-5.15.0-1052-gkeopUpgrade linux-image-oem-20.04cUpgrade linux-image-intel-iotgUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-azure-lts-20.04Upgrade linux-image-6.8.0-1010-gkeUpgrade linux-image-oem-22.04cUpgrade linux-image-6.8.0-44-lowlatencyUpgrade linux-image-5.15.0-1064-nvidiaUpgrade linux-image-5.15.0-121-generic-64kUpgrade linux-image-5.15.0-1072-azure-fdeUpgrade linux-image-oem-22.04aUpgrade linux-image-5.15.0-121-lowlatency-64kUpgrade linux-image-5.15.0-1067-oracleUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-ibm-lts-20.04Upgrade linux-image-5.4.0-1131-oracleUpgrade linux-image-gkeop-5.15Upgrade linux-image-6.8.0-45-generic-64kUpgrade linux-image-oem-22.04dUpgrade linux-image-oem-22.04Upgrade linux-image-aws-lts-20.04Upgrade linux-image-5.15.0-1069-awsUpgrade linux-image-6.8.0-1014-azure-fdeUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidiaUpgrade linux-image-6.8.0-44-generic-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-6.8.0-1012-oracleUpgrade linux-image-nvidia-6.8Upgrade linux-image-5.15.0-1066-gkeUpgrade linux-image-oem-20.04bUpgrade linux-image-oemUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.15.0-1064-nvidia-lowlatencyUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-awsUpgrade linux-image-5.4.0-1079-ibmUpgrade linux-image-5.4.0-1120-kvmUpgrade linux-image-6.8.0-44-genericUpgrade linux-image-6.8.0-1013-nvidia-lowlatencyUpgrade linux-image-ibmUpgrade linux-image-5.4.0-1099-gkeopUpgrade linux-image-6.8.0-1014-gcpUpgrade linux-image-6.8.0-1012-oemUpgrade linux-image-azureUpgrade linux-image-6.8.0-1012-ibmUpgrade linux-image-raspiUpgrade linux-image-5.4.0-1092-bluefieldUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-lowlatencyUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-6.8.0-1015-awsUpgrade linux-image-5.4.0-1043-iotUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-45-genericUpgrade linux-image-5.15.0-1064-intel-iotgUpgrade linux-image-oracle-lts-20.04 | Sep 12, 2024 | Jul 12, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2025 | Jul 12, 2024 |
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