In the Linux kernel, the following vulnerability has been resolved:
net: xilinx: axienet: Enqueue Tx packets in dql before dmaengine starts
Enqueue packets in dql after dma engine starts causes race condition.
Tx transfer starts once dma engine is started and may execute dql dequeue
in completion before it gets queued. It results in following kernel crash
while running iperf stress test:
kernel BUG at lib/dynamic_queue_limits.c:99!
<snip>
Internal error: Oops - BUG: 00000000f2000800 [#1] SMP
pc : dql_completed+0x238/0x248
lr : dql_completed+0x3c/0x248
Call trace:
dql_completed+0x238/0x248
axienet_dma_tx_cb+0xa0/0x170
xilinx_dma_do_tasklet+0xdc/0x290
tasklet_action_common+0xf8/0x11c
tasklet_action+0x30/0x3c
handle_softirqs+0xf8/0x230
<snip>
Start dmaengine after enqueue in dql fixes the crash.
Metrics
Affected Vendors & Products
References
History
Wed, 27 Nov 2024 15:45:00 +0000
Type | Values Removed | Values Added |
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First Time appeared |
Linux
Linux linux Kernel |
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Weaknesses | CWE-362 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:* |
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Vendors & Products |
Linux
Linux linux Kernel |
|
Metrics |
cvssV3_1
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cvssV3_1
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Fri, 22 Nov 2024 14:00:00 +0000
Type | Values Removed | Values Added |
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References |
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Metrics |
threat_severity
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cvssV3_1
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Tue, 19 Nov 2024 01:45:00 +0000
Type | Values Removed | Values Added |
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Description | In the Linux kernel, the following vulnerability has been resolved: net: xilinx: axienet: Enqueue Tx packets in dql before dmaengine starts Enqueue packets in dql after dma engine starts causes race condition. Tx transfer starts once dma engine is started and may execute dql dequeue in completion before it gets queued. It results in following kernel crash while running iperf stress test: kernel BUG at lib/dynamic_queue_limits.c:99! <snip> Internal error: Oops - BUG: 00000000f2000800 [#1] SMP pc : dql_completed+0x238/0x248 lr : dql_completed+0x3c/0x248 Call trace: dql_completed+0x238/0x248 axienet_dma_tx_cb+0xa0/0x170 xilinx_dma_do_tasklet+0xdc/0x290 tasklet_action_common+0xf8/0x11c tasklet_action+0x30/0x3c handle_softirqs+0xf8/0x230 <snip> Start dmaengine after enqueue in dql fixes the crash. | |
Title | net: xilinx: axienet: Enqueue Tx packets in dql before dmaengine starts | |
References |
|
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-11-19T01:30:44.680Z
Updated: 2024-12-19T09:37:40.179Z
Reserved: 2024-10-21T19:36:19.986Z
Link: CVE-2024-50297
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2024-11-19T02:16:31.887
Modified: 2024-11-27T15:25:04.810
Link: CVE-2024-50297
Redhat