CVE-2026-72148

dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK

State: Published
Severity: 8.8 High
Published: Aug 15, 2026
Updated: Aug 23, 2026
Reserved: Aug 9, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK

The DONE_INT_MASK and ABORT_INT_MASK registers are shared by all DMA channels, and modifying them requires a read-modify-write sequence. Because this operation is not atomic, concurrent calls to dw_edma_v0_core_start() can introduce race conditions if two channels update these registers simultaneously.

Add a spinlock to serialize access to these registers and prevent race conditions.

[den: update dw_edma.lock comment]

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	7e4b8a4fbe2cecab0959e862604803d063f50029 to before 3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2Affected 7e4b8a4fbe2cecab0959e862604803d063f50029 to before f60c7463d44fbc1585d247d0bd6976f7a1099472Affected 7e4b8a4fbe2cecab0959e862604803d063f50029 to before 2247cc25a91fb1b5b86586ed55fdd5b725a7477cAffected 7e4b8a4fbe2cecab0959e862604803d063f50029 to before 3ee0f478bb29b4ee892b178179a9a76ddd194149Affected 7e4b8a4fbe2cecab0959e862604803d063f50029 to before 21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1Affected 7e4b8a4fbe2cecab0959e862604803d063f50029 to before ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640Affected 7e4b8a4fbe2cecab0959e862604803d063f50029 to before 1553ca96e9df158d8f37137cf4bf5fb0dc981d94Affected 7e4b8a4fbe2cecab0959e862604803d063f50029 to before 8ffba0171c6bbce5f093c6dba5a02c0805b31203Affected
LinuxLinux	5.3Affected before 5.3Not affected 5.10.266 through 5.10.Not affected 5.15.217 through 5.15.Not affected 6.1.178 through 6.1.Not affected 6.6.145 through 6.6.Not affected 6.12.97 through 6.12.Not affected 6.18.40 through 6.18.Not affected 7.1.5 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

7e4b8a4fbe2cecab0959e862604803d063f50029 to before 3989b4775bc2cdbdb4ddc4b1d2420a82b40913f2Affected
7e4b8a4fbe2cecab0959e862604803d063f50029 to before f60c7463d44fbc1585d247d0bd6976f7a1099472Affected
7e4b8a4fbe2cecab0959e862604803d063f50029 to before 2247cc25a91fb1b5b86586ed55fdd5b725a7477cAffected
7e4b8a4fbe2cecab0959e862604803d063f50029 to before 3ee0f478bb29b4ee892b178179a9a76ddd194149Affected
7e4b8a4fbe2cecab0959e862604803d063f50029 to before 21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1Affected
7e4b8a4fbe2cecab0959e862604803d063f50029 to before ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640Affected
7e4b8a4fbe2cecab0959e862604803d063f50029 to before 1553ca96e9df158d8f37137cf4bf5fb0dc981d94Affected
7e4b8a4fbe2cecab0959e862604803d063f50029 to before 8ffba0171c6bbce5f093c6dba5a02c0805b31203Affected

LinuxLinux

5.3Affected
before 5.3Not affected
5.10.266 through 5.10.*Not affected
5.15.217 through 5.15.*Not affected
6.1.178 through 6.1.*Not affected
6.6.145 through 6.6.*Not affected
6.12.97 through 6.12.*Not affected
6.18.40 through 6.18.*Not affected
7.1.5 through 7.1.*Not affected
7.2 and laterNot affected

References

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