CVE-2026-43494

CVE Enrichment

CVSS: 7.8 HIGH
EPSS: 0.19%
EPSS Percentile: 8.41%
CISA KEV: Not listed

Description

In the Linux kernel, the following vulnerability has been resolved: net/rds: reset op_nents when zerocopy page pin fails When iov_iter_get_pages2() fails in rds_message_zcopy_from_user(), the pinned pages are released with put_page(), and rm->data.op_mmp_znotifier is cleared. But we fail to properly clear rm->data.op_nents. Later when rds_message_purge() is called from rds_sendmsg() the cleanup loop iterates over the incorrectly non zero number of op_nents and frees them again. Fix this by properly resetting op_nents when it should be in rds_message_zcopy_from_user().

Technical Details

CVSS Version: 3.1
CNA / NVD Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published: 21-May-2026 19:16
Last Modified: 23-Jul-2026 23:10
EPSS Date: 2026-10-11
CWE: CWE-1341

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:L /
                            PR:L /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

Affected Products / Versions

linux / linux_kernel
Version / affected range: * · from (inclusive) 4.17 · before (exclusive) 5.10.258
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: * · from (inclusive) 5.11 · before (exclusive) 5.15.209
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: * · from (inclusive) 5.16 · before (exclusive) 6.1.175
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: * · from (inclusive) 6.2 · before (exclusive) 6.6.141
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: * · from (inclusive) 6.7 · before (exclusive) 6.12.91
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: * · from (inclusive) 6.13 · before (exclusive) 6.18.33
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: * · from (inclusive) 6.19 · before (exclusive) 7.0.10
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: 7.1
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: 7.1
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
linux / linux_kernel
Version / affected range: 7.1
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*

References

Last enrichment sync: 12-Oct-2026 01:18
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

CVE-2026-43494 (PinTheft): a Linux kernel vulnerability that lets a local user gain elevated privileges due to errors in the memory page pinning mechanism Kaspersky Reports Rising Vulnerability Disclosures and Early Exploit Releases in Q2 2026

CVE (26)

People (2)

Vendors (2)

Products (15)

Tools (4)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.