In the Linux kernel, the following vulnerability has been resolved:
comedi: Flush partial mappings in error case
If some remap_pfn_range() calls succeeded before one failed, we still have
buffer pages mapped into the userspace page tables when we drop the buffer
reference with comedi_buf_map_put(bm). The userspace mappings are only
cleaned up later in the mmap error path.
Fix it by explicitly flushing all mappings in our VMA on the error path.
See commit 79a61cc3fc04 ("mm: avoid leaving partial pfn mappings around in
error case").
Metrics
Affected Vendors & Products
References
History
Mon, 03 Nov 2025 21:30:00 +0000
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Wed, 08 Oct 2025 14:45:00 +0000
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| Weaknesses | NVD-CWE-noinfo | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Wed, 16 Jul 2025 13:45:00 +0000
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epss
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epss
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Wed, 25 Dec 2024 13:30:00 +0000
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threat_severity
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cvssV3_1
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Tue, 24 Dec 2024 11:45:00 +0000
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| Description | In the Linux kernel, the following vulnerability has been resolved: comedi: Flush partial mappings in error case If some remap_pfn_range() calls succeeded before one failed, we still have buffer pages mapped into the userspace page tables when we drop the buffer reference with comedi_buf_map_put(bm). The userspace mappings are only cleaned up later in the mmap error path. Fix it by explicitly flushing all mappings in our VMA on the error path. See commit 79a61cc3fc04 ("mm: avoid leaving partial pfn mappings around in error case"). | |
| Title | comedi: Flush partial mappings in error case | |
| References |
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Status: PUBLISHED
Assigner: Linux
Published: 2024-12-24T11:28:48.619Z
Updated: 2025-11-03T20:46:32.627Z
Reserved: 2024-11-19T17:17:24.998Z
Link: CVE-2024-53148
No data.
Status : Modified
Published: 2024-12-24T12:15:22.887
Modified: 2025-11-03T21:17:31.787
Link: CVE-2024-53148