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 python-perfUpgrade python-perf-debuginfoUpgrade kernel-headersUpgrade kernelUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-livepatch-5.10.75-79.358Upgrade perfUpgrade perf-debuginfoUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade kernel-tools-debuginfoUpgrade bpftoolUpgrade kernel-tools-devel | May 22, 2025 | May 21, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 21, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernel-toolsUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel | Oct 8, 2024 | May 21, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 21, 2024 |
| Suse | — | Upgrade kernel-kvmsmall-vdsoUpgrade kernel-64kbUpgrade dtb-exynosUpgrade dtb-xilinxUpgrade kernel-rt-optionalUpgrade dlm-kmp-64kbUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-devel-azureUpgrade kselftests-kmp-azureUpgrade cluster-md-kmp-azureUpgrade kernel-64kb-optionalUpgrade kernel-default-optionalUpgrade kernel-docs-htmlUpgrade kernel-kvmsmallUpgrade gfs2-kmp-64kbUpgrade kernel-source-azureUpgrade kernel-azure-develUpgrade kernel-preemptUpgrade kernel-default-develUpgrade kernel-rt_debug-develUpgrade kernel-rtUpgrade kernel-azure-baseUpgrade kselftests-kmp-64kbUpgrade kernel-azure-optionalUpgrade kernel-default-livepatchUpgrade kernel-rt-livepatchUpgrade dtb-appleUpgrade dtb-broadcomUpgrade dtb-marvellUpgrade kernel-sourceUpgrade gfs2-kmp-azureUpgrade dtb-allwinnerUpgrade kernel-azure-livepatch-develUpgrade kernel-64kb-livepatch-develUpgrade kernel-default-vdsoUpgrade kernel-zfcpdumpUpgrade dtb-lgUpgrade kernel-kvmsmall-develUpgrade ocfs2-kmp-64kbUpgrade kernel-source-rtUpgrade dtb-alteraUpgrade kernel-syms-azureUpgrade reiserfs-kmp-64kbUpgrade dtb-hisiliconUpgrade kernel-debugUpgrade kernel-develUpgrade ocfs2-kmp-defaultUpgrade kernel-preempt-develUpgrade dtb-caviumUpgrade cluster-md-kmp-rtUpgrade kernel-rt-vdsoUpgrade dtb-freescaleUpgrade kernel-symsUpgrade gfs2-kmp-rtUpgrade kernel-azureUpgrade kernel-azure-extraUpgrade kernel-source-vanillaUpgrade dtb-amazonUpgrade ocfs2-kmp-rtUpgrade dtb-qcomUpgrade reiserfs-kmp-azureUpgrade kernel-rt-extraUpgrade dlm-kmp-azureUpgrade kernel-rt_debugUpgrade kselftests-kmp-rtUpgrade dtb-rockchipUpgrade kernel-default-livepatch-develUpgrade kernel-default-manUpgrade kernel-macrosUpgrade dtb-mediatekUpgrade kernel-default-extraUpgrade kernel-rt_debug-vdsoUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-obs-qaUpgrade kernel-devel-rtUpgrade dtb-sprdUpgrade kernel-debug-livepatch-develUpgrade cluster-md-kmp-defaultUpgrade kernel-default-base-rebuildUpgrade kernel-syms-rtUpgrade dtb-renesasUpgrade dtb-nvidiaUpgrade dtb-amlogicUpgrade ocfs2-kmp-azureUpgrade kernel-64kb-extraUpgrade dtb-armUpgrade dtb-socionextUpgrade kernel-defaultUpgrade kernel-obs-buildUpgrade kernel-default-baseUpgrade reiserfs-kmp-rtUpgrade dlm-kmp-defaultUpgrade kernel-rt-develUpgrade kernel-debug-vdsoUpgrade kernel-debug-develUpgrade kselftests-kmp-defaultUpgrade gfs2-kmp-defaultUpgrade kernel-64kb-develUpgrade kernel-docsUpgrade dtb-apmUpgrade cluster-md-kmp-64kbUpgrade reiserfs-kmp-defaultUpgrade dtb-amdUpgrade kernel-rt-livepatch-develUpgrade dlm-kmp-rtUpgrade kernel-azure-vdso | Aug 9, 2024 | May 21, 2024 |
| Ubuntu | — | Upgrade linux-hwe-5.4Upgrade linux-azure-5.4Upgrade linux-gcp-fipsUpgrade linux-gkeopUpgrade linux-oracleUpgrade linuxUpgrade linux-gcp-5.4Upgrade linux-azure-4.15Upgrade linux-gcpUpgrade linux-hweUpgrade linux-ibmUpgrade linux-gcp-4.15Upgrade linux-aws-fipsUpgrade linux-azure-fipsUpgrade linux-awsUpgrade linux-raspiUpgrade linux-aws-hweUpgrade linux-fipsUpgrade linux-kvmUpgrade linux-azureUpgrade linux-raspi-5.4Upgrade linux-bluefieldUpgrade linux-oracle-5.4Upgrade linux-aws-5.4 | Nov 19, 2024 | May 21, 2024 |
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