In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Fix handling of wrong devices during bond netevent
Current implementation of bond netevent handler only check if the handled netdev is VF representor and it missing a check if the VF representor is on the same phys device of the bond handling the netevent.
Fix by adding the missing check and optimizing the check if the netdev is VF representor so it will not access uninitialized private data and crashes.
BUG: kernel NULL pointer dereference, address: 000000000000036c PGD 0 P4D 0 Oops: 0000 [#1] SMP NOPTI Workqueue: eth3bond0 bond_mii_monitor [bonding] RIP: 0010:mlx5e_is_uplink_rep+0xc/0x50 [mlx5_core] RSP: 0018:ffff88812d69fd60 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff8881cf800000 RCX: 0000000000000000 RDX: ffff88812d69fe10 RSI: 000000000000001b RDI: ffff8881cf800880 RBP: ffff8881cf800000 R08: 00000445cabccf2b R09: 0000000000000008 R10: 0000000000000004 R11: 0000000000000008 R12: ffff88812d69fe10 R13: 00000000fffffffe R14: ffff88820c0f9000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88846fb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000036c CR3: 0000000103d80006 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mlx5e_eswitch_uplink_rep+0x31/0x40 [mlx5_core] mlx5e_rep_is_lag_netdev+0x94/0xc0 [mlx5_core] mlx5e_rep_esw_bond_netevent+0xeb/0x3d0 [mlx5_core] raw_notifier_call_chain+0x41/0x60 call_netdevice_notifiers_info+0x34/0x80 netdev_lower_state_changed+0x4e/0xa0 bond_mii_monitor+0x56b/0x640 [bonding] process_one_work+0x1b9/0x390 worker_thread+0x4d/0x3d0 ? rescuer_thread+0x350/0x350 kthread+0x124/0x150 ? set_kthread_struct+0x40/0x40 ret_from_fork+0x1f/0x30
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.10.102-99.473Upgrade kernelUpgrade kernel-tools-debuginfoUpgrade kernel-develUpgrade perfUpgrade kernel-tools-develUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-headersUpgrade python-perfUpgrade bpftoolUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade python-perf-debuginfoUpgrade kernel-tools | Aug 2, 2024 | Jun 20, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Jun 20, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade python3-perf | Oct 9, 2024 | Jun 20, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jun 20, 2024 |
| Suse | — | Upgrade cluster-md-kmp-azureUpgrade kernel-devel-rtUpgrade kernel-preemptUpgrade ocfs2-kmp-azureUpgrade kernel-syms-rtUpgrade kernel-devel-azureUpgrade kernel-rt-develUpgrade kernel-develUpgrade kernel-rt_debug-vdsoUpgrade kernel-macrosUpgrade kernel-syms-azureUpgrade ocfs2-kmp-rtUpgrade kselftests-kmp-rtUpgrade kernel-rt-livepatchUpgrade gfs2-kmp-rtUpgrade dlm-kmp-azureUpgrade reiserfs-kmp-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-azure-livepatch-develUpgrade cluster-md-kmp-rtUpgrade kernel-defaultUpgrade kernel-64kb-develUpgrade reiserfs-kmp-defaultUpgrade kernel-docsUpgrade kernel-symsUpgrade kernel-zfcpdumpUpgrade reiserfs-kmp-azureUpgrade kernel-azure-vdsoUpgrade kernel-preempt-develUpgrade kernel-default-develUpgrade dlm-kmp-rtUpgrade kernel-sourceUpgrade kernel-azureUpgrade kernel-default-baseUpgrade kernel-source-azureUpgrade kernel-source-rtUpgrade kselftests-kmp-azureUpgrade kernel-rt-vdsoUpgrade kernel-rt-extraUpgrade kernel-rt-optionalUpgrade kernel-obs-buildUpgrade kernel-azure-develUpgrade kernel-azure-extraUpgrade gfs2-kmp-azureUpgrade kernel-rt_debug-develUpgrade kernel-azure-optionalUpgrade kernel-64kbUpgrade kernel-rtUpgrade kernel-rt_debugUpgrade kernel-rt_debug-livepatch-devel | Aug 9, 2024 | Jun 20, 2024 |
| Ubuntu | — | Upgrade linux-intel-iotg-5.15 | 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 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub