CVE-2024-35959

CVE Details

Release Date:

2024-05-20

Description

In the Linux kernel, the following vulnerability has been resolved:\nnet/mlx5e: Fix mlx5e_priv_init() cleanup flow\nWhen mlx5e_priv_init() fails, the cleanup flow calls mlx5e_selq_cleanup which\ncalls mlx5e_selq_apply() that assures that the `priv->state_lock` is held using\nlockdep_is_held().\nAcquire the state_lock in mlx5e_selq_cleanup().\nKernel log:\n=============================\nWARNING: suspicious RCU usage\n6.8.0-rc3_net_next_841a9b5 #1 Not tainted\n-----------------------------\ndrivers/net/ethernet/mellanox/mlx5/core/en/selq.c:124 suspicious rcu_dereference_protected() usage!\nother info that might help us debug this:\nrcu_scheduler_active = 2, debug_locks = 1\n2 locks held by systemd-modules/293:\n#0: ffffffffa05067b0 (devices_rwsem){++++}-{3:3}, at: ib_register_client+0x109/0x1b0 [ib_core]\n#1: ffff8881096c65c0 (&device->client_data_rwsem){++++}-{3:3}, at: add_client_context+0x104/0x1c0 [ib_core]\nstack backtrace:\nCPU: 4 PID: 293 Comm: systemd-modules Not tainted 6.8.0-rc3_net_next_841a9b5 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\nCall Trace:\n\ndump_stack_lvl+0x8a/0xa0\nlockdep_rcu_suspicious+0x154/0x1a0\nmlx5e_selq_apply+0x94/0xa0 [mlx5_core]\nmlx5e_selq_cleanup+0x3a/0x60 [mlx5_core]\nmlx5e_priv_init+0x2be/0x2f0 [mlx5_core]\nmlx5_rdma_setup_rn+0x7c/0x1a0 [mlx5_core]\nrdma_init_netdev+0x4e/0x80 [ib_core]\n? mlx5_rdma_netdev_free+0x70/0x70 [mlx5_core]\nipoib_intf_init+0x64/0x550 [ib_ipoib]\nipoib_intf_alloc+0x4e/0xc0 [ib_ipoib]\nipoib_add_one+0xb0/0x360 [ib_ipoib]\nadd_client_context+0x112/0x1c0 [ib_core]\nib_register_client+0x166/0x1b0 [ib_core]\n? 0xffffffffa0573000\nipoib_init_module+0xeb/0x1a0 [ib_ipoib]\ndo_one_initcall+0x61/0x250\ndo_init_module+0x8a/0x270\ninit_module_from_file+0x8b/0xd0\nidempotent_init_module+0x17d/0x230\n__x64_sys_finit_module+0x61/0xb0\ndo_syscall_64+0x71/0x140\nentry_SYSCALL_64_after_hwframe+0x46/0x4e\n

See more information about CVE-2024-35959 from MITRE CVE dictionary and NIST NVD

CVSS Scoring

NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	CVSS Vector:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (kernel)	ELSA-2024-4211	2024-07-02
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12796	2024-10-20
Oracle Linux version 9 (kernel)	ELSA-2024-9315	2024-11-14
Oracle Linux version 9 (kernel-uek)	ELSA-2024-12796	2024-10-20