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CVE-2026-93041— dmaengine: dw-edma: Serialize abort state updates

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已修复以下漏洞： dmaengine: dw-edma：串行化中止状态更新 在修改 和 之前释放了 。在这个短暂的时间窗口内， 可能获取锁，观察到旧的“忙碌”状态，并因此跳过启动队列中的描述符。随后，中止处理程序将通道状态覆盖为“空闲”，导致新的描述符永久性地处于搁置状态。 修复方案： 将描述符完成操作与状态转换放在同一个临界区内执行，以确保原子性。

AI Predicted 5.5 Difficulty: Hard EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf< 4a72f81b8681b2ad7705cf039974c443dcc8ff00 affected
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf< b7b8b08cd6422f7ed783226ac4aa6cebe398ab54 affected
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf< 0b028e5175590fb34ccbd537ff5b9cd386ce5747 affected
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf< 075de95d7a7cd8fecfb6fe1c685c9064fc6c9d76 affected
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf< e20c6539394ac8d70240b85bb5963c74a3a49789 affected
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf< 0c3294066c36d5980fd9c8192dcb53bb9ccd1f7b affected
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf< f71c94c1a657492e015be227d44c4198a8e7a91d affected
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf< dd80e259f65d932634e26d366570d71669ef6654 affected
… +10 more rows
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I. Basic Information for CVE-2026-93041

Vulnerability Information
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Vulnerability Title
dmaengine: dw-edma: Serialize abort state updates
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: Serialize abort state updates dw_edma_abort_interrupt() drops vc.lock before changing request and status. issue_pending() can acquire the lock in that small window, observe the old busy state, and skip starting queued descriptors. Then the abort handler overwrites the channel status as idle, leaving the new descriptors stranded for good. Keep descriptor completion and the state transition in the same critical section.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf ~ 4a72f81b8681b2ad7705cf039974c443dcc8ff00 -
Linux Linux 5.3 -

II. Public POCs for CVE-2026-93041

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III. Intelligence Information for CVE-2026-93041

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Patches & Fixes for CVE-2026-93041 (8)

Same Patch Batch · Linux · 2026-09-17 · 600 CVEs total

CVE-2026-92489 9.8 CRITICAL xfrm: Fix skb double-free in xfrm_dev_direct_output()
CVE-2026-90235 9.8 CRITICAL sunrpc: xprtsock: annotate shared socket callbacks with READ_ONCE/WRITE_ONCE
CVE-2026-90173 9.8 CRITICAL smb: smbdirect: free completion queues with ib_free_cq()
CVE-2026-90104 9.8 CRITICAL NFSv4.1: zero referring call lists before decoding
CVE-2026-90151 9.8 CRITICAL NFSv4: remove callback IDR entry on client allocation failure
CVE-2026-90110 9.4 CRITICAL inetpeer: randomize RB-tree node comparison using SipHash
CVE-2026-90230 9.1 CRITICAL nvmet: fix heap out-of-bounds read in nvmet_auth_negotiate()
CVE-2026-90414 9.1 CRITICAL IB/isert: reject PDUs declaring more data than was received
CVE-2026-90413 9.1 CRITICAL IB/isert: reject login PDUs declaring more data than was received
CVE-2026-90367 8.8 HIGH wifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER
CVE-2026-90329 8.8 HIGH HID: synchronize input before cleaning up a failed probe
CVE-2026-93189 8.8 HIGH HID: core: quiesce input in hid_hw_stop() to prevent use-after-free
CVE-2026-90240 8.8 HIGH iommu/vt-d: Flush context cache with correct SID when tearing down aliases
CVE-2026-90357 8.8 HIGH wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement
CVE-2026-90286 8.8 HIGH drm/amdgpu/gfx6: Use PFP on the compute queues too
CVE-2026-93042 8.8 HIGH dmaengine: dw-edma: Terminate all descriptors without callbacks
CVE-2026-90256 8.8 HIGH Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
CVE-2026-90380 8.8 HIGH wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_complete
CVE-2026-90381 8.8 HIGH wifi: mt76: fix handling channel context with different bands in mt76_switch_vif_chanctx()
CVE-2026-90425 8.8 HIGH iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID

Showing top 20 of 600 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-93041

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