CVE-2025-22049 (GCVE-0-2025-22049)

Vulnerability from cvelistv5 – Published: 2025-04-16 14:12 – Updated: 2025-11-03 19:41
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: LoongArch: Increase ARCH_DMA_MINALIGN up to 16 ARCH_DMA_MINALIGN is 1 by default, but some LoongArch-specific devices (such as APBDMA) require 16 bytes alignment. When the data buffer length is too small, the hardware may make an error writing cacheline. Thus, it is dangerous to allocate a small memory buffer for DMA. It's always safe to define ARCH_DMA_MINALIGN as L1_CACHE_BYTES but unnecessary (kmalloc() need small memory objects). Therefore, just increase it to 16.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: fa96b57c149061f71a70bd6582d995f6424fbbf4 , < f39af67f03b564b763b06e44cb960c10a382d54a (git)
Affected: fa96b57c149061f71a70bd6582d995f6424fbbf4 , < 279ec25c2df49fba1cd9488f2ddd045d9cb2112e (git)
Affected: fa96b57c149061f71a70bd6582d995f6424fbbf4 , < 1d0def2d1658666ec1f32c9495df60e7411e3c82 (git)
Affected: fa96b57c149061f71a70bd6582d995f6424fbbf4 , < bfff341cac7c650e6ca8d10503725992f5564d0f (git)
Affected: fa96b57c149061f71a70bd6582d995f6424fbbf4 , < 8b82aea3666f8f2c78f86148d78aea99c46e0f82 (git)
Affected: fa96b57c149061f71a70bd6582d995f6424fbbf4 , < 4103cfe9dcb88010ae4911d3ff417457d1b6a720 (git)
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    Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.1.134 , ≤ 6.1.* (semver)
Unaffected: 6.6.87 , ≤ 6.6.* (semver)
Unaffected: 6.12.23 , ≤ 6.12.* (semver)
Unaffected: 6.13.11 , ≤ 6.13.* (semver)
Unaffected: 6.14.2 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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