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
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
dc405152bb64d4ae01c9ac669de25b2d1fb6fc2d to < eff818238bedb9c2484c251ec46f9f160911cdc0affecteddc405152bb64d4ae01c9ac669de25b2d1fb6fc2d to < 6fc9af3df6ca7f3c94774d20f62dc7b49616026daffecteddc405152bb64d4ae01c9ac669de25b2d1fb6fc2d to < 4112450da7d67b59ccedc2208bae622db17dbcb8affecteddc405152bb64d4ae01c9ac669de25b2d1fb6fc2d to < 705be2dc45c7f852e211e16bc41a916fab741983affecteddc405152bb64d4ae01c9ac669de25b2d1fb6fc2d to < 6cc23898e6ba47e976050d3c080b4d2c1add3748affecteddc405152bb64d4ae01c9ac669de25b2d1fb6fc2d to < 5f5a939759c79e7385946c85e62feca51a18d816affecteddc405152bb64d4ae01c9ac669de25b2d1fb6fc2d to < 2f6f1e26ac6d2b38e2198a71f81f0ade14d6b07baffecteddc405152bb64d4ae01c9ac669de25b2d1fb6fc2d to < e15d84b3bba187aa372dff7c58ce1fd5cb48a076affected
Linux Linux
Default version status: affected
4.19affected0 to < 4.19unaffected4.19.323 to ≤ 4.19.*unaffected5.4.285 to ≤ 5.4.*unaffected5.10.229 to ≤ 5.10.*unaffected5.15.171 to ≤ 5.15.*unaffected6.1.116 to ≤ 6.1.*unaffected6.6.60 to ≤ 6.6.*unaffected6.11.7 to ≤ 6.11.*unaffected6.12 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/eff818238bedb9c2484c251ec46f9f160911cdc0 ↗
- https://git.kernel.org/stable/c/6fc9af3df6ca7f3c94774d20f62dc7b49616026d ↗
- https://git.kernel.org/stable/c/4112450da7d67b59ccedc2208bae622db17dbcb8 ↗
- https://git.kernel.org/stable/c/705be2dc45c7f852e211e16bc41a916fab741983 ↗
- https://git.kernel.org/stable/c/6cc23898e6ba47e976050d3c080b4d2c1add3748 ↗
- https://git.kernel.org/stable/c/5f5a939759c79e7385946c85e62feca51a18d816 ↗
- https://git.kernel.org/stable/c/2f6f1e26ac6d2b38e2198a71f81f0ade14d6b07b ↗
- https://git.kernel.org/stable/c/e15d84b3bba187aa372dff7c58ce1fd5cb48a076 ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗