Bug 2337102 (CVE-2024-57800) - CVE-2024-57800 kernel: ALSA: memalloc: prefer dma_mapping_error() over explicit address checking
Summary: CVE-2024-57800 kernel: ALSA: memalloc: prefer dma_mapping_error() over explic...
Keywords:
Status: NEW
Alias: CVE-2024-57800
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-01-11 13:01 UTC by OSIDB Bzimport
Modified: 2025-01-13 08:12 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2025-01-11 13:01:48 UTC
In the Linux kernel, the following vulnerability has been resolved:

ALSA: memalloc: prefer dma_mapping_error() over explicit address checking

With CONFIG_DMA_API_DEBUG enabled, the following warning is observed:

DMA-API: snd_hda_intel 0000:03:00.1: device driver failed to check map error[device address=0x00000000ffff0000] [size=20480 bytes] [mapped as single]
WARNING: CPU: 28 PID: 2255 at kernel/dma/debug.c:1036 check_unmap+0x1408/0x2430
CPU: 28 UID: 42 PID: 2255 Comm: wireplumber Tainted: G  W L  6.12.0-10-133577cad6bf48e5a7848c4338124081393bfe8a+ #759
debug_dma_unmap_page+0xe9/0xf0
snd_dma_wc_free+0x85/0x130 [snd_pcm]
snd_pcm_lib_free_pages+0x1e3/0x440 [snd_pcm]
snd_pcm_common_ioctl+0x1c9a/0x2960 [snd_pcm]
snd_pcm_ioctl+0x6a/0xc0 [snd_pcm]
...

Check for returned DMA addresses using specialized dma_mapping_error()
helper which is generally recommended for this purpose by
Documentation/core-api/dma-api.rst.

Comment 1 Avinash Hanwate 2025-01-13 08:08:44 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025011152-CVE-2024-57800-699a@gregkh/T


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