CVE-2026-90052
Published Sep 17, 2026
CVSS n/a
EPSS n/a
KEV · Not listed
Description
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Affected Products
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CVE record
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NVD configurations
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Red Hat packages
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OpenCVE enrichment
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No data available yet.
Remediation
Tracking
Advisories
Metrics
No CVSS v4.0
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
No EPSS score available.
Key SSVC decision points have not yet been added.
References
No reference.
History
Oct 19, 2026 3:30 PM
References updated. Scoring metrics updated
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cvssV3_1
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Oct 19, 2026 2:30 PM
Description updated. Title updated. Affected versions updated
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| Type | Values Removed | Values Added |
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| Description | In the Linux kernel, the following vulnerability has been resolved: dm-integrity: fix buffer overflow with keyed discard Since commit 68c5c42567bc ("dm-integrity: replace forgeable discard filler with a keyed sector marker"), integrity_metadata computes a checksum for every discarded block into the "checksums" buffer. integrity_sector_checksum always writes the whole digest. So if the tag size is smaller than the digest size, the checksum of the last block that fits into the buffer is written past the end of it. For example, with hmac(sha256) and tag size 16, a 4MiB discard writes 16 bytes past the kmalloc'ed page. Fix this by subtracting extra_space from the buffer size when computing max_blocks, like we do for writes. | This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. |
| Title | dm-integrity: fix buffer overflow with keyed discard | |
| CPEs |
Sep 20, 2026 4:30 AM
Weaknesses updated
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| Type | Values Removed | Values Added |
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| Weaknesses | CWE-122 |
Sep 18, 2026 9:30 PM
Scoring metrics updated
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
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Sep 17, 2026 4:30 PM
Description updated. Title updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: dm-integrity: fix buffer overflow with keyed discard Since commit 68c5c42567bc ("dm-integrity: replace forgeable discard filler with a keyed sector marker"), integrity_metadata computes a checksum for every discarded block into the "checksums" buffer. integrity_sector_checksum always writes the whole digest. So if the tag size is smaller than the digest size, the checksum of the last block that fits into the buffer is written past the end of it. For example, with hmac(sha256) and tag size 16, a 4MiB discard writes 16 bytes past the kmalloc'ed page. Fix this by subtracting extra_space from the buffer size when computing max_blocks, like we do for writes. | |
| Title | dm-integrity: fix buffer overflow with keyed discard | |
| First Time appeared |
Linux
Linux linux Kernel |
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| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
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| References |
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Subscriptions
Weaknesses
