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CVE-2024-50236 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: Fix memory leak in management tx In the current logic, memory is allocated for storing the MSDU context during management packet TX but this memory is not being freed during management TX completion. Similar leaks are seen in the management TX cleanup logic. Kmemleak reports this problem as below, unreferenced object 0xffffff80b64ed250 (size 16): comm "kworker/u16:7", pid 148, jiffies 4294687130 (age 714.199s) hex dump (first 16 bytes): 00 2b d8 d8 80 ff ff ff c4 74 e9 fd 07 00 00 00 .+.......t...... backtrace: [<ffffffe6e7b245dc>] __kmem_cache_alloc_node+0x1e4/0x2d8 [<ffffffe6e7adde88>] kmalloc_trace+0x48/0x110 [<ffffffe6bbd765fc>] ath10k_wmi_tlv_op_gen_mgmt_tx_send+0xd4/0x1d8 [ath10k_core] [<ffffffe6bbd3eed4>] ath10k_mgmt_over_wmi_tx_work+0x134/0x298 [ath10k_core] [<ffffffe6e78d5974>] process_scheduled_works+0x1ac/0x400 [<ffffffe6e78d60b8>] worker_thread+0x208/0x328 [<ffffffe6e78dc890>] kthread+0x100/0x1c0 [<ffffffe6e78166c0>] ret_from_fork+0x10/0x20 Free the memory during completion and cleanup to fix the leak. Protect the mgmt_pending_tx idr_remove() operation in ath10k_wmi_tlv_op_cleanup_mgmt_tx_send() using ar->data_lock similar to other instances. Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
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Hyperlink Resource
https://git.kernel.org/stable/c/2f6f1e26ac6d2b38e2198a71f81f0ade14d6b07b Patch 
https://git.kernel.org/stable/c/4112450da7d67b59ccedc2208bae622db17dbcb8 Patch 
https://git.kernel.org/stable/c/5f5a939759c79e7385946c85e62feca51a18d816 Patch 
https://git.kernel.org/stable/c/6cc23898e6ba47e976050d3c080b4d2c1add3748 Patch 
https://git.kernel.org/stable/c/6fc9af3df6ca7f3c94774d20f62dc7b49616026d Patch 
https://git.kernel.org/stable/c/705be2dc45c7f852e211e16bc41a916fab741983 Patch 
https://git.kernel.org/stable/c/e15d84b3bba187aa372dff7c58ce1fd5cb48a076 Patch 
https://git.kernel.org/stable/c/eff818238bedb9c2484c251ec46f9f160911cdc0 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-401 Missing Release of Memory after Effective Lifetime cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-50236
NVD Published Date:
11/09/2024
NVD Last Modified:
11/14/2024
Source:
kernel.org