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In the Linux kernel, the following vulnerability has been resolved:
scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe
Running tests with a debug kernel shows that bnx2fc_recv_frame() is modifying the per_cpu lport stats counters in a non-mpsafe way. Just boot a debug kernel and run the bnx2fc driver with the hardware enabled.
[ 1391.699147] BUG: using smp_processor_id() in preemptible [00000000] code: bnx2fc_ [ 1391.699160] caller is bnx2fc_recv_frame+0xbf9/0x1760 [bnx2fc] [ 1391.699174] CPU: 2 PID: 4355 Comm: bnx2fc_l2_threa Kdump: loaded Tainted: G B [ 1391.699180] Hardware name: HP ProLiant DL120 G7, BIOS J01 07/01/2013 [ 1391.699183] Call Trace: [ 1391.699188] dump_stack_lvl+0x57/0x7d [ 1391.699198] check_preemption_disabled+0xc8/0xd0 [ 1391.699205] bnx2fc_recv_frame+0xbf9/0x1760 [bnx2fc] [ 1391.699215] ? do_raw_spin_trylock+0xb5/0x180 [ 1391.699221] ? bnx2fc_npiv_create_vports.isra.0+0x4e0/0x4e0 [bnx2fc] [ 1391.699229] ? bnx2fc_l2_rcv_thread+0xb7/0x3a0 [bnx2fc] [ 1391.699240] bnx2fc_l2_rcv_thread+0x1af/0x3a0 [bnx2fc] [ 1391.699250] ? bnx2fc_ulp_init+0xc0/0xc0 [bnx2fc] [ 1391.699258] kthread+0x364/0x420 [ 1391.699263] ? _raw_spin_unlock_irq+0x24/0x50 [ 1391.699268] ? set_kthread_struct+0x100/0x100 [ 1391.699273] ret_from_fork+0x22/0x30
Restore the old get_cpu/put_cpu code with some modifications to reduce the size of the critical section.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Jun 20, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernelUpgrade python3-perfUpgrade kernel-tools | Oct 8, 2024 | Jun 20, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-abi-stablelists | Oct 9, 2024 | Jun 20, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernelUpgrade python3-perf | Oct 8, 2024 | Jun 20, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jun 20, 2024 |
| Suse | — | Upgrade kernel-azure-baseUpgrade kernel-preempt-develUpgrade kernel-rt-develUpgrade kernel-64kb-develUpgrade kernel-rt_debugUpgrade kselftests-kmp-azureUpgrade kselftests-kmp-rtUpgrade kernel-defaultUpgrade reiserfs-kmp-defaultUpgrade kernel-default-baseUpgrade kernel-rt_debug-livepatch-develUpgrade gfs2-kmp-azureUpgrade kernel-azure-extraUpgrade kernel-devel-rtUpgrade dlm-kmp-azureUpgrade kernel-azureUpgrade kernel-docsUpgrade kernel-rt-extraUpgrade kernel-develUpgrade dlm-kmp-rtUpgrade cluster-md-kmp-rtUpgrade kernel-rt_debug-develUpgrade reiserfs-kmp-rtUpgrade ocfs2-kmp-azureUpgrade kernel-syms-azureUpgrade kernel-azure-optionalUpgrade kernel-devel-azureUpgrade cluster-md-kmp-azureUpgrade kernel-64kbUpgrade kernel-syms-rtUpgrade kernel-sourceUpgrade kernel-rt-livepatchUpgrade kernel-azure-vdsoUpgrade kernel-rt_debug-vdsoUpgrade kernel-rt-optionalUpgrade kernel-obs-buildUpgrade kernel-default-extraUpgrade kernel-source-rtUpgrade kernel-default-develUpgrade kernel-azure-livepatch-develUpgrade reiserfs-kmp-azureUpgrade kernel-source-azureUpgrade kernel-macrosUpgrade kernel-symsUpgrade kernel-default-manUpgrade kernel-zfcpdumpUpgrade kernel-rt-vdsoUpgrade kernel-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-preemptUpgrade ocfs2-kmp-rtUpgrade kernel-azure-develUpgrade gfs2-kmp-rt | Aug 9, 2024 | Jun 20, 2024 |
| Ubuntu | — | Upgrade linux-oracle-5.4Upgrade linux-ibm-5.4Upgrade linux-aws-5.4Upgrade linux-raspiUpgrade linux-raspi-5.4Upgrade linux-awsUpgrade linuxUpgrade linux-azure-4.15Upgrade linux-iotUpgrade linux-bluefieldUpgrade linux-gcpUpgrade linux-ibmUpgrade linux-gcp-5.4Upgrade linux-aws-fipsUpgrade linux-kvmUpgrade linux-azureUpgrade linux-hwe-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-fipsUpgrade linux-hweUpgrade linux-gcp-fipsUpgrade linux-azure-fipsUpgrade linux-gkeopUpgrade linux-gcp-4.15Upgrade linux-azure-5.4Upgrade linux-aws-hweUpgrade linux-oracle | Nov 19, 2024 | Jun 20, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jun 20, 2024 |
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