CVSS v3
7.8
HIGH
Score EPSS
0.2 %
probabilité d’exploitation au 2026-09-28
CISA KEV
Non
exploitation connue
Exploitation
—
statut SSVC
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
Détails techniques
- Publiée le
- 2026-09-17
- Dernière modification
- 2026-09-18
Questions fréquentes
Qu’est-ce que CVE-2026-90052 ?
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
CVE-2026-90052 est-elle activement exploitée ?
Aucune exploitation active de CVE-2026-90052 n’est confirmée. Son score EPSS était de 0.2 % au 2026-09-28, soit la probabilité estimée d’exploitation dans les 30 prochains jours.
Quel est le score CVSS de CVE-2026-90052 ?
CVE-2026-90052 a un score de base CVSS v3 de 7.8 (gravité HIGH).
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