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CVE-2025-40293

In the Linux kernel, the following vulnerability has been resolved:

iommufd: Don't overflow during division for dirty tracking

If pgshift is 63 then BITS_PER_TYPE(*bitmap->bitmap) * pgsize will overflow
to 0 and this triggers divide by 0.

In this case the index should just be 0, so reorganize things to divide
by shift and avoid hitting any overflows.
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Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version < 07105e61882ff4a7d58db63cc5f9e90c6c60506c
Version 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1
Status affected
Version < 4c8a4f1d34eced168cc0b3a3dfe7b6dcc2090f69
Version 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1
Status affected
Version < de7f2c67ceb1941b05b04ac35458a03e93cc57b1
Version 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1
Status affected
Version < dbf316fc90aa954dcd5440817f4b944627ed63e0
Version 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1
Status affected
Version < cb30dfa75d55eced379a42fd67bd5fb7ec38555e
Version 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.1
Status affected
Version < 6.1
Version 0
Status unaffected
Version <= 6.1.*
Version 6.1.159
Status unaffected
Version <= 6.6.*
Version 6.6.117
Status unaffected
Version <= 6.12.*
Version 6.12.58
Status unaffected
Version <= 6.17.*
Version 6.17.8
Status unaffected
Version <= *
Version 6.18
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.056
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String