Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
0

CVE-2024-42268

Disclosure Date: August 17, 2024 •
CVE-2024-42268 CVSS v3 Base Score: 5.5
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

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

net/mlx5: Fix missing lock on sync reset reload

On sync reset reload work, when remote host updates devlink on reload
actions performed on that host, it misses taking devlink lock before
calling devlink_remote_reload_actions_performed() which results in
triggering lock assert like the following:

WARNING: CPU: 4 PID: 1164 at net/devlink/core.c:261 devl_assert_locked+0x3e/0x50
…
CPU: 4 PID: 1164 Comm: kworker/u96:6 Tainted: G S W 6.10.0-rc2+ #116
Hardware name: Supermicro SYS-2028TP-DECTR/X10DRT-PT, BIOS 2.0 12/18/2015
Workqueue: mlx5_fw_reset_events mlx5_sync_reset_reload_work [mlx5_core]
RIP: 0010:devl_assert_locked+0x3e/0x50
…
Call Trace:
<TASK>
? __warn+0xa4/0x210
? devl_assert_locked+0x3e/0x50
? report_bug+0x160/0x280
? handle_bug+0x3f/0x80
? exc_invalid_op+0x17/0x40
? asm_exc_invalid_op+0x1a/0x20
? devl_assert_locked+0x3e/0x50
devlink_notify+0x88/0x2b0
? mlx5_attach_device+0x20c/0x230 [mlx5_core]
? __pfx_devlink_notify+0x10/0x10
? process_one_work+0x4b6/0xbb0
process_one_work+0x4b6/0xbb0
[…]

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CVSS V3 Severity and Metrics
Base Score:
5.5 Medium
Impact Score:
3.6
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Linux 5d07d1d40aab
Linux not down converted
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • linux

Products

  • linux kernel,
  • linux kernel 6.11
Technical Analysis