CVE-2024-38595

net/mlx5: Fix peer devlink set for SF representor devlink port

State: Published
Severity: Not scored
Published: Jun 19, 2024
Updated: May 27, 2026
Reserved: Jun 18, 2024

Description

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

net/mlx5: Fix peer devlink set for SF representor devlink port

The cited patch change register devlink flow, and neglect to reflect the changes for peer devlink set logic. Peer devlink set is triggering a call trace if done after devl_register.[1]

Hence, align peer devlink set logic with register devlink flow.

[1] WARNING: CPU: 4 PID: 3394 at net/devlink/core.c:155 devlink_rel_nested_in_add+0x177/0x180 CPU: 4 PID: 3394 Comm: kworker/u40:1 Not tainted 6.9.0-rc4_for_linust_min_debug_2024_04_16_14_08 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 Workqueue: mlx5_vhca_event0 mlx5_vhca_state_work_handler [mlx5_core] RIP: 0010:devlink_rel_nested_in_add+0x177/0x180 Call Trace: <TASK> ? __warn+0x78/0x120 ? devlink_rel_nested_in_add+0x177/0x180 ? report_bug+0x16d/0x180 ? handle_bug+0x3c/0x60 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 ? devlink_port_init+0x30/0x30 ? devlink_port_type_clear+0x50/0x50 ? devlink_rel_nested_in_add+0x177/0x180 ? devlink_rel_nested_in_add+0xdd/0x180 mlx5_sf_mdev_event+0x74/0xb0 [mlx5_core] notifier_call_chain+0x35/0xb0 blocking_notifier_call_chain+0x3d/0x60 mlx5_blocking_notifier_call_chain+0x22/0x30 [mlx5_core] mlx5_sf_dev_probe+0x185/0x3e0 [mlx5_core] auxiliary_bus_probe+0x38/0x80 ? driver_sysfs_add+0x51/0x80 really_probe+0xc5/0x3a0 ? driver_probe_device+0x90/0x90 __driver_probe_device+0x80/0x160 driver_probe_device+0x1e/0x90 __device_attach_driver+0x7d/0x100 bus_for_each_drv+0x80/0xd0 __device_attach+0xbc/0x1f0 bus_probe_device+0x86/0xa0 device_add+0x64f/0x860 __auxiliary_device_add+0x3b/0xa0 mlx5_sf_dev_add+0x139/0x330 [mlx5_core] mlx5_sf_dev_state_change_handler+0x1e4/0x250 [mlx5_core] notifier_call_chain+0x35/0xb0 blocking_notifier_call_chain+0x3d/0x60 mlx5_vhca_state_work_handler+0x151/0x200 [mlx5_core] process_one_work+0x13f/0x2e0 worker_thread+0x2bd/0x3c0 ? rescuer_thread+0x410/0x410 kthread+0xc4/0xf0 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x2d/0x50 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork_asm+0x11/0x20 </TASK>

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	967caa3d37c078e5b95a32094657e6a4cad145f0 to before a0501201751034ebe7a22bd9483ed28fea1cd213Affected c6e77aa9dd82bc18a89bf49418f8f7e961cfccc8 to before 05d9d7b66836d87c914f8fdd4b062b78e373458dAffected c6e77aa9dd82bc18a89bf49418f8f7e961cfccc8 to before 3c453e8cc672de1f9c662948dba43176bc68d7f0Affected 8c91c60858473731bcdaf04fda99fcbcf84420d4Affected 8256c1211dc6fa606269aa043b6e294247820b31Affected 6.8.7 to before 6.8.12Affected 6.6.28 to before 6.7Affected
LinuxLinux	6.9Affected before 6.9Not affected 6.8.12 through 6.8.Not affected 6.9.3 through 6.9.Not affected 6.10 and laterNot affected

Product

Versions

LinuxLinux

967caa3d37c078e5b95a32094657e6a4cad145f0 to before a0501201751034ebe7a22bd9483ed28fea1cd213Affected
c6e77aa9dd82bc18a89bf49418f8f7e961cfccc8 to before 05d9d7b66836d87c914f8fdd4b062b78e373458dAffected
c6e77aa9dd82bc18a89bf49418f8f7e961cfccc8 to before 3c453e8cc672de1f9c662948dba43176bc68d7f0Affected
8c91c60858473731bcdaf04fda99fcbcf84420d4Affected
8256c1211dc6fa606269aa043b6e294247820b31Affected
6.8.7 to before 6.8.12Affected
6.6.28 to before 6.7Affected

LinuxLinux

6.9Affected
before 6.9Not affected
6.8.12 through 6.8.*Not affected
6.9.3 through 6.9.*Not affected
6.10 and laterNot affected

References

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