In the Linux kernel, the following vulnerability has been resolved:
i40e: Fix freeing of uninitialized misc IRQ vector
When VSI set up failed in i40e_probe() as part of PF switch set up driver was trying to free misc IRQ vectors in i40e_clear_interrupt_scheme and produced a kernel Oops:
Trying to free already-free IRQ 266 WARNING: CPU: 0 PID: 5 at kernel/irq/manage.c:1731 __free_irq+0x9a/0x300 Workqueue: events work_for_cpu_fn RIP: 0010:__free_irq+0x9a/0x300 Call Trace: ? synchronize_irq+0x3a/0xa0 free_irq+0x2e/0x60 i40e_clear_interrupt_scheme+0x53/0x190 [i40e] i40e_probe.part.108+0x134b/0x1a40 [i40e] ? kmem_cache_alloc+0x158/0x1c0 ? acpi_ut_update_ref_count.part.1+0x8e/0x345 ? acpi_ut_update_object_reference+0x15e/0x1e2 ? strstr+0x21/0x70 ? irq_get_irq_data+0xa/0x20 ? mp_check_pin_attr+0x13/0xc0 ? irq_get_irq_data+0xa/0x20 ? mp_map_pin_to_irq+0xd3/0x2f0 ? acpi_register_gsi_ioapic+0x93/0x170 ? pci_conf1_read+0xa4/0x100 ? pci_bus_read_config_word+0x49/0x70 ? do_pci_enable_device+0xcc/0x100 local_pci_probe+0x41/0x90 work_for_cpu_fn+0x16/0x20 process_one_work+0x1a7/0x360 worker_thread+0x1cf/0x390 ? create_worker+0x1a0/0x1a0 kthread+0x112/0x130 ? kthread_flush_work_fn+0x10/0x10 ret_from_fork+0x1f/0x40
The problem is that at that point misc IRQ vectors were not allocated yet and we get a call trace that driver is trying to free already free IRQ vectors.
Add a check in i40e_clear_interrupt_scheme for __I40E_MISC_IRQ_REQUESTED PF state before calling i40e_free_misc_vector. This state is set only if misc IRQ vectors were properly initialized.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade bpftoolUpgrade perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade kernel-tools-develUpgrade kernel-develUpgrade kernelUpgrade kernel-debuginfoUpgrade kernel-headersUpgrade python-perfUpgrade python-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-livepatch-5.10.75-79.358Upgrade kernel-debuginfo-common-x86_64 | May 22, 2025 | May 21, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 21, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernel-toolsUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel | Oct 8, 2024 | May 21, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 21, 2024 |
| Suse | — | Upgrade kernel-azure-vdsoUpgrade cluster-md-kmp-defaultUpgrade dtb-socionextUpgrade kernel-devel-rtUpgrade kernel-default-base-rebuildUpgrade kselftests-kmp-defaultUpgrade kernel-debug-develUpgrade kernel-debug-livepatch-develUpgrade dlm-kmp-rtUpgrade kernel-macrosUpgrade kernel-64kb-develUpgrade kernel-64kb-extraUpgrade dlm-kmp-defaultUpgrade kernel-default-livepatch-develUpgrade reiserfs-kmp-rtUpgrade kernel-syms-rtUpgrade dtb-armUpgrade kernel-default-extraUpgrade dtb-mediatekUpgrade kernel-default-baseUpgrade kernel-default-manUpgrade reiserfs-kmp-defaultUpgrade dtb-apmUpgrade dtb-amlogicUpgrade dtb-renesasUpgrade gfs2-kmp-defaultUpgrade kernel-rt_debug-vdsoUpgrade kernel-defaultUpgrade cluster-md-kmp-64kbUpgrade dtb-nvidiaUpgrade ocfs2-kmp-azureUpgrade kernel-debug-vdsoUpgrade kernel-rt_debugUpgrade kernel-rt-develUpgrade kernel-rt_debug-livepatch-develUpgrade dtb-sprdUpgrade dtb-rockchipUpgrade kselftests-kmp-rtUpgrade kernel-rt-extraUpgrade kernel-docsUpgrade kernel-obs-buildUpgrade kernel-rt-livepatch-develUpgrade kernel-obs-qaUpgrade reiserfs-kmp-azureUpgrade dtb-amdUpgrade dlm-kmp-azureUpgrade kernel-default-develUpgrade kernel-rt-optionalUpgrade kernel-default-vdsoUpgrade dtb-allwinnerUpgrade kernel-64kbUpgrade kselftests-kmp-azureUpgrade kernel-kvmsmall-vdsoUpgrade kernel-default-optionalUpgrade dtb-hisiliconUpgrade kernel-kvmsmall-develUpgrade reiserfs-kmp-64kbUpgrade kernel-kvmsmallUpgrade dtb-alteraUpgrade dtb-qcomUpgrade kernel-docs-htmlUpgrade kernel-azure-optionalUpgrade gfs2-kmp-64kbUpgrade kernel-syms-azureUpgrade kselftests-kmp-64kbUpgrade kernel-rt_debug-develUpgrade kernel-rtUpgrade kernel-preempt-develUpgrade kernel-default-livepatchUpgrade dtb-caviumUpgrade kernel-azure-baseUpgrade kernel-rt-livepatchUpgrade ocfs2-kmp-defaultUpgrade kernel-develUpgrade kernel-azureUpgrade kernel-source-azureUpgrade kernel-sourceUpgrade cluster-md-kmp-azureUpgrade kernel-azure-develUpgrade kernel-64kb-optionalUpgrade dtb-xilinxUpgrade dlm-kmp-64kbUpgrade dtb-exynosUpgrade kernel-kvmsmall-livepatch-develUpgrade dtb-appleUpgrade kernel-debugUpgrade kernel-source-vanillaUpgrade dtb-amazonUpgrade dtb-freescaleUpgrade dtb-broadcomUpgrade dtb-marvellUpgrade kernel-azure-extraUpgrade kernel-symsUpgrade gfs2-kmp-rtUpgrade ocfs2-kmp-rtUpgrade kernel-rt-vdsoUpgrade ocfs2-kmp-64kbUpgrade kernel-azure-livepatch-develUpgrade kernel-preemptUpgrade kernel-source-rtUpgrade cluster-md-kmp-rtUpgrade dtb-lgUpgrade kernel-zfcpdumpUpgrade kernel-devel-azureUpgrade kernel-64kb-livepatch-develUpgrade gfs2-kmp-azure | Aug 9, 2024 | May 21, 2024 |
| Ubuntu | — | Upgrade linux-oracleUpgrade linux-gkeopUpgrade linux-azure-5.4Upgrade linux-gcp-5.4Upgrade linuxUpgrade linux-gcp-fipsUpgrade linux-hwe-5.4Upgrade linux-aws-fipsUpgrade linux-ibmUpgrade linux-azure-fipsUpgrade linux-gcp-4.15Upgrade linux-gcpUpgrade linux-hweUpgrade linux-azure-4.15Upgrade linux-fipsUpgrade linux-azureUpgrade linux-aws-5.4Upgrade linux-raspi-5.4Upgrade linux-bluefieldUpgrade linux-awsUpgrade linux-raspiUpgrade linux-oracle-5.4Upgrade linux-kvmUpgrade linux-aws-hwe | Nov 19, 2024 | May 21, 2024 |
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