net: xilinx: axienet: Enqueue Tx packets in dql before dmaengine starts

Summary

CVE	CVE-2024-50297
State	PUBLISHED
Assigner	Linux
Source Priority	CVE Program / NVD first with legacy fallback
Published	2024-11-19 02:16:31 UTC
Updated	2026-08-04 11:21:43 UTC
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.

Primary CVSS: v3.1 4.7 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.002740000 probability, percentile 0.194430000 (date 2026-08-06)

Problem Types: CWE-362 | CWE-362 CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	4.7	MEDIUM	`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H`
3.1	ADP	DECLARED	4.7	MEDIUM	`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H`
3.1	416baaa9-dc9f-4396-8d5f-8c081fb06d67	Secondary	7.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
3.1	134c704f-9b21-4f2e-91b3-4a467353bcc0	Secondary	4.7	MEDIUM	`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H`
3.1	CNA	DECLARED	7.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Linux	Linux Kernel	All	All	All	All
Operating System	Linux	Linux Kernel	6.12	rc1	All	All
Operating System	Linux	Linux Kernel	6.12	rc2	All	All
Operating System	Linux	Linux Kernel	6.12	rc3	All	All
Operating System	Linux	Linux Kernel	6.12	rc4	All	All
Operating System	Linux	Linux Kernel	6.12	rc5	All	All
Operating System	Linux	Linux Kernel	6.12	rc6	All	All

Source	Vendor	Product	Version	Platforms
CNA	Linux	Linux	affected 6a91b846af85a24241decd686269e8e038eb13d1 def3dee25cbd1c9b2ed443c3f6180e952563de77 git	Not specified
CNA	Linux	Linux	affected 6a91b846af85a24241decd686269e8e038eb13d1 5ccdcdf186aec6b9111845fd37e1757e9b413e2f git	Not specified
CNA	Linux	Linux	affected 6.8	Not specified
CNA	Linux	Linux	unaffected 6.8 semver	Not specified
CNA	Linux	Linux	unaffected 6.11.8 6.11.* semver	Not specified
CNA	Linux	Linux	unaffected 6.12 * original_commit_for_fix	Not specified

Reference	Source	Link	Tags
git.kernel.org/stable/c/5ccdcdf186aec6b9111845fd37e1757e9b413e2f	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
git.kernel.org/stable/c/def3dee25cbd1c9b2ed443c3f6180e952563de77	416baaa9-dc9f-4396-8d5f-8c081fb06d67	git.kernel.org	Patch
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

There are currently no legacy QID mappings associated with this CVE.