CVE-2025-22049
published 2025-04-16CVE-2025-22049: 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…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.20%
10.0th percentile
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.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.135-1 (bookworm) | linux 6.1.135-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.135-1 (bookworm) | linux 6.1.135-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= fa96b57c149061f71a70bd6582d995f6424fbbf4 < f39af67f03b564b763b06e44cb960c10a382d54a | f39af67f03b564b763b06e44cb960c10a382d54a |
| linux | linux | >= fa96b57c149061f71a70bd6582d995f6424fbbf4 < 279ec25c2df49fba1cd9488f2ddd045d9cb2112e | 279ec25c2df49fba1cd9488f2ddd045d9cb2112e |
| linux | linux | >= fa96b57c149061f71a70bd6582d995f6424fbbf4 < 1d0def2d1658666ec1f32c9495df60e7411e3c82 | 1d0def2d1658666ec1f32c9495df60e7411e3c82 |
| linux | linux | >= fa96b57c149061f71a70bd6582d995f6424fbbf4 < bfff341cac7c650e6ca8d10503725992f5564d0f | bfff341cac7c650e6ca8d10503725992f5564d0f |
| linux | linux | >= fa96b57c149061f71a70bd6582d995f6424fbbf4 < 8b82aea3666f8f2c78f86148d78aea99c46e0f82 | 8b82aea3666f8f2c78f86148d78aea99c46e0f82 |
| linux | linux | >= fa96b57c149061f71a70bd6582d995f6424fbbf4 < 4103cfe9dcb88010ae4911d3ff417457d1b6a720 | 4103cfe9dcb88010ae4911d3ff417457d1b6a720 |
| linux | linux_kernel | >= 0 < 6.1.135-1 | 6.1.135-1 |
| linux | linux_kernel | >= 0 < 6.12.25-1 | 6.12.25-1 |
| linux | linux_kernel | >= 0 < 6.12.25-1 | 6.12.25-1 |
| linux | linux_kernel | >= 5.19 < 6.1.134 | 6.1.134 |
| linux | linux_kernel | >= 6.13 < 6.13.11 | 6.13.11 |
| linux | linux_kernel | >= 6.14 < 6.14.2 | 6.14.2 |
| linux | linux_kernel | >= 6.2 < 6.6.87 | 6.6.87 |
| linux | linux_kernel | >= 6.7 < 6.12.23 | 6.12.23 |
| msrc | azl3_kernel_6.6.85.1-4_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.92.2-1_on_azure_linux_3.0 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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Red Hat
kernel: LoongArch: Increase ARCH_DMA_MINALIGN up to 16
vendor_redhat·2025-04-16·CVSS 5.5
CVE-2025-22049 [MEDIUM] kernel: LoongArch: Increase ARCH_DMA_MINALIGN up to 16
kernel: LoongArch: Increase ARCH_DMA_MINALIGN up to 16
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.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt
Microsoft
LoongArch: Increase ARCH_DMA_MINALIGN up to 16
vendor_msrc·2025-04-08·CVSS 5.5
CVE-2025-22049 [MEDIUM] LoongArch: Increase ARCH_DMA_MINALIGN up to 16
LoongArch: Increase ARCH_DMA_MINALIGN up to 16
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.microsof
Debian
CVE-2025-22049: linux - In the Linux kernel, the following vulnerability has been resolved: LoongArch: ...
vendor_debian·2025·CVSS 5.5
CVE-2025-22049 [MEDIUM] CVE-2025-22049: linux - In the Linux kernel, the following vulnerability has been resolved: LoongArch: ...
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.
Scope: local
bookworm: resolved (fixed in 6.1.135-1)
bullseye: resolved
forky: resolved (fixed in 6.12.25-1)
sid: resolved (fixed in 6.12.25-1)
trixie: resolved (fixed in 6.12.25-1)
GHSA
GHSA-q8p5-jh8j-ww29: 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
ghsa_unreviewed·2025-04-16
CVE-2025-22049 [MEDIUM] GHSA-q8p5-jh8j-ww29: 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
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.
OSV
CVE-2025-22049: 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,
osv·2025-04-16·CVSS 5.5
CVE-2025-22049 [MEDIUM] CVE-2025-22049: 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,
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.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/1d0def2d1658666ec1f32c9495df60e7411e3c82https://git.kernel.org/stable/c/279ec25c2df49fba1cd9488f2ddd045d9cb2112ehttps://git.kernel.org/stable/c/4103cfe9dcb88010ae4911d3ff417457d1b6a720https://git.kernel.org/stable/c/8b82aea3666f8f2c78f86148d78aea99c46e0f82https://git.kernel.org/stable/c/bfff341cac7c650e6ca8d10503725992f5564d0fhttps://git.kernel.org/stable/c/f39af67f03b564b763b06e44cb960c10a382d54ahttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
2025-04-16
Published