CVE-2023-53079

net/mlx5: Fix steering rules cleanup

State: Published
Severity: Not scored
Published: May 2, 2025
Updated: May 11, 2026
Reserved: May 2, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5: Fix steering rules cleanup

vport's mc, uc and multicast rules are not deleted in teardown path when EEH happens. Since the vport's promisc settings(uc, mc and all) in firmware are reset after EEH, mlx5 driver will try to delete the above rules in the initialization path. This cause kernel crash because these software rules are no longer valid.

Fix by nullifying these rules right after delete to avoid accessing any dangling pointers.

Call Trace: __list_del_entry_valid+0xcc/0x100 (unreliable) tree_put_node+0xf4/0x1b0 [mlx5_core] tree_remove_node+0x30/0x70 [mlx5_core] mlx5_del_flow_rules+0x14c/0x1f0 [mlx5_core] esw_apply_vport_rx_mode+0x10c/0x200 [mlx5_core] esw_update_vport_rx_mode+0xb4/0x180 [mlx5_core] esw_vport_change_handle_locked+0x1ec/0x230 [mlx5_core] esw_enable_vport+0x130/0x260 [mlx5_core] mlx5_eswitch_enable_sriov+0x2a0/0x2f0 [mlx5_core] mlx5_device_enable_sriov+0x74/0x440 [mlx5_core] mlx5_load_one+0x114c/0x1550 [mlx5_core] mlx5_pci_resume+0x68/0xf0 [mlx5_core] eeh_report_resume+0x1a4/0x230 eeh_pe_dev_traverse+0x98/0x170 eeh_handle_normal_event+0x3e4/0x640 eeh_handle_event+0x4c/0x370 eeh_event_handler+0x14c/0x210 kthread+0x168/0x1b0 ret_from_kernel_thread+0x5c/0x84

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	a35f71f27a614aff106cc89b86168962bce2725f to before 18cead61e437f4c7898acca0a5f3df12f801d97fAffected a35f71f27a614aff106cc89b86168962bce2725f to before 4df1f2d36bdc9a368650bf14b9097c555e95f71dAffected a35f71f27a614aff106cc89b86168962bce2725f to before 63546395a0e6ac264f78f65218086ce6014b4494Affected a35f71f27a614aff106cc89b86168962bce2725f to before 6f5780536181d1d0d09a11a1bc92f22e143447e2Affected a35f71f27a614aff106cc89b86168962bce2725f to before 922f56e9a795d6f3dd72d3428ebdd7ee040fa855Affected
LinuxLinux	4.7Affected before 4.7Not affected 5.10.177 through 5.10.Not affected 5.15.105 through 5.15.Not affected 6.1.22 through 6.1.Not affected 6.2.9 through 6.2.Not affected 6.3 and laterNot affected

Product

Versions

LinuxLinux

a35f71f27a614aff106cc89b86168962bce2725f to before 18cead61e437f4c7898acca0a5f3df12f801d97fAffected
a35f71f27a614aff106cc89b86168962bce2725f to before 4df1f2d36bdc9a368650bf14b9097c555e95f71dAffected
a35f71f27a614aff106cc89b86168962bce2725f to before 63546395a0e6ac264f78f65218086ce6014b4494Affected
a35f71f27a614aff106cc89b86168962bce2725f to before 6f5780536181d1d0d09a11a1bc92f22e143447e2Affected
a35f71f27a614aff106cc89b86168962bce2725f to before 922f56e9a795d6f3dd72d3428ebdd7ee040fa855Affected

LinuxLinux

4.7Affected
before 4.7Not affected
5.10.177 through 5.10.*Not affected
5.15.105 through 5.15.*Not affected
6.1.22 through 6.1.*Not affected
6.2.9 through 6.2.*Not affected
6.3 and laterNot affected

References

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