In the Linux kernel, the following vulnerability has been resolved:
scsi: qedf: Add pointer checks in qedf_update_link_speed()
The following trace was observed:
[ 14.042059] Call Trace: [ 14.042061] <IRQ> [ 14.042068] qedf_link_update+0x144/0x1f0 [qedf] [ 14.042117] qed_link_update+0x5c/0x80 [qed] [ 14.042135] qed_mcp_handle_link_change+0x2d2/0x410 [qed] [ 14.042155] ? qed_set_ptt+0x70/0x80 [qed] [ 14.042170] ? qed_set_ptt+0x70/0x80 [qed] [ 14.042186] ? qed_rd+0x13/0x40 [qed] [ 14.042205] qed_mcp_handle_events+0x437/0x690 [qed] [ 14.042221] ? qed_set_ptt+0x70/0x80 [qed] [ 14.042239] qed_int_sp_dpc+0x3a6/0x3e0 [qed] [ 14.042245] tasklet_action_common.isra.14+0x5a/0x100 [ 14.042250] __do_softirq+0xe4/0x2f8 [ 14.042253] irq_exit+0xf7/0x100 [ 14.042255] do_IRQ+0x7f/0xd0 [ 14.042257] common_interrupt+0xf/0xf [ 14.042259] </IRQ>
API qedf_link_update() is getting called from QED but by that time shost_data is not initialised. This results in a NULL pointer dereference when we try to dereference shost_data while updating supported_speeds.
Add a NULL pointer check before dereferencing shost_data.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Mar 1, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernelUpgrade python3-perf | Jul 16, 2024 | Mar 1, 2024 |
| Huawei Euleros 2_0_sp8 | — | Upgrade kernel-headersUpgrade python-perfUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-develUpgrade python3-perfUpgrade perfUpgrade kernel | Jul 23, 2024 | Mar 1, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernelUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade python3-perf | Jul 17, 2024 | Mar 1, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Mar 1, 2024 |
| Suse | — | Upgrade kernel-defaultUpgrade kernel-azureUpgrade reiserfs-kmp-defaultUpgrade kernel-docsUpgrade kernel-develUpgrade kernel-obs-buildUpgrade kernel-preempt-develUpgrade kernel-default-baseUpgrade kernel-default-manUpgrade kernel-default-extraUpgrade kernel-default-develUpgrade kernel-azure-baseUpgrade kernel-sourceUpgrade kernel-azure-develUpgrade kernel-macrosUpgrade kernel-syms-azureUpgrade kernel-devel-azureUpgrade kernel-64kb-develUpgrade kernel-zfcpdumpUpgrade kernel-source-azureUpgrade kernel-symsUpgrade kernel-64kbUpgrade kernel-preempt | Aug 9, 2024 | Mar 1, 2024 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Mar 1, 2024 |
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