In the Linux kernel, the following vulnerability has been resolved:
padata: use integer wrap around to prevent deadlock on seq_nr overflow
When submitting more than 2^32 padata objects to padata_do_serial, the
current sorting implementation incorrectly sorts padata objects with
overflowed seq_nr, causing them to be placed before existing objects in
the reorder list. This leads to a deadlock in the serialization process
as padata_find_next cannot match padata->seq_nr and pd->processed
because the padata instance with overflowed seq_nr will be selected
next.
To fix this, we use an unsigned integer wrap around to correctly sort
padata objects in scenarios with integer overflow.
Metrics
Affected Vendors & Products
References
History
Wed, 23 Oct 2024 17:15:00 +0000
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First Time appeared |
Linux
Linux linux Kernel |
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Weaknesses | CWE-190 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
Vendors & Products |
Linux
Linux linux Kernel |
Tue, 22 Oct 2024 01:30:00 +0000
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References |
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Metrics |
threat_severity
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cvssV3_1
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Mon, 21 Oct 2024 14:15:00 +0000
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Metrics |
ssvc
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Mon, 21 Oct 2024 12:30:00 +0000
Type | Values Removed | Values Added |
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Description | In the Linux kernel, the following vulnerability has been resolved: padata: use integer wrap around to prevent deadlock on seq_nr overflow When submitting more than 2^32 padata objects to padata_do_serial, the current sorting implementation incorrectly sorts padata objects with overflowed seq_nr, causing them to be placed before existing objects in the reorder list. This leads to a deadlock in the serialization process as padata_find_next cannot match padata->seq_nr and pd->processed because the padata instance with overflowed seq_nr will be selected next. To fix this, we use an unsigned integer wrap around to correctly sort padata objects in scenarios with integer overflow. | |
Title | padata: use integer wrap around to prevent deadlock on seq_nr overflow | |
References |
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MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-10-21T12:14:08.495Z
Updated: 2024-12-19T09:27:08.914Z
Reserved: 2024-09-30T16:00:12.959Z
Link: CVE-2024-47739
Vulnrichment
Updated: 2024-10-21T12:59:30.940Z
NVD
Status : Analyzed
Published: 2024-10-21T13:15:04.017
Modified: 2024-10-23T16:58:37.707
Link: CVE-2024-47739
Redhat