CVE-2026-72148

Summary

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]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux7e4b8a4fbe2cecab0959e862604803d063f50029 < 2247cc25a91fb1b5b86586ed55fdd5b725a7477caffected
LinuxLinux7e4b8a4fbe2cecab0959e862604803d063f50029 < 3ee0f478bb29b4ee892b178179a9a76ddd194149affected
LinuxLinux7e4b8a4fbe2cecab0959e862604803d063f50029 < 21a9834f56d6249aaa6ca7c2d8c182d66c48c3e1affected
LinuxLinux7e4b8a4fbe2cecab0959e862604803d063f50029 < ddbc4a8a4fe296f1fa2e59f7d176fc7c773df640affected
LinuxLinux7e4b8a4fbe2cecab0959e862604803d063f50029 < 1553ca96e9df158d8f37137cf4bf5fb0dc981d94affected
LinuxLinux7e4b8a4fbe2cecab0959e862604803d063f50029 < 8ffba0171c6bbce5f093c6dba5a02c0805b31203affected
LinuxLinux5.3affected
LinuxLinux0 < 5.3unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References