In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: kTLS, Fix incorrect page refcounting
The kTLS tx handling code is using a mix of get_page() and
page_ref_inc() APIs to increment the page reference. But on the release
path (mlx5e_ktls_tx_handle_resync_dump_comp()), only put_page() is used.
This is an issue when using pages from large folios: the get_page()
references are stored on the folio page while the page_ref_inc()
references are stored directly in the given page. On release the folio
page will be dereferenced too many times.
This was found while doing kTLS testing with sendfile() + ZC when the
served file was read from NFS on a kernel with NFS large folios support
(commit 49b29a573da8 ("nfs: add support for large folios")).
Metrics
Affected Vendors & Products
References
History
Sat, 14 Dec 2024 21:00:00 +0000
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References |
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Wed, 11 Dec 2024 17:30:00 +0000
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First Time appeared |
Linux
Linux linux Kernel |
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Weaknesses | NVD-CWE-Other | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc7:*:*:*:*:*:* |
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Vendors & Products |
Linux
Linux linux Kernel |
Thu, 05 Dec 2024 14:00:00 +0000
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References |
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Metrics |
threat_severity
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cvssV3_1
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Wed, 04 Dec 2024 14:30:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: kTLS, Fix incorrect page refcounting The kTLS tx handling code is using a mix of get_page() and page_ref_inc() APIs to increment the page reference. But on the release path (mlx5e_ktls_tx_handle_resync_dump_comp()), only put_page() is used. This is an issue when using pages from large folios: the get_page() references are stored on the folio page while the page_ref_inc() references are stored directly in the given page. On release the folio page will be dereferenced too many times. This was found while doing kTLS testing with sendfile() + ZC when the served file was read from NFS on a kernel with NFS large folios support (commit 49b29a573da8 ("nfs: add support for large folios")). | |
Title | net/mlx5e: kTLS, Fix incorrect page refcounting | |
References |
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MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-12-04T14:20:43.395Z
Updated: 2024-12-19T09:40:07.399Z
Reserved: 2024-11-19T17:17:24.996Z
Link: CVE-2024-53138
Vulnrichment
No data.
NVD
Status : Modified
Published: 2024-12-04T15:15:13.983
Modified: 2024-12-14T21:15:38.140
Link: CVE-2024-53138
Redhat