5.5

CVE-2022-50285

mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages

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

mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages

The h->*_huge_pages counters are protected by the hugetlb_lock, but
alloc_huge_page has a corner case where it can decrement the counter
outside of the lock.

This could lead to a corrupted value of h->resv_huge_pages, which we have
observed on our systems.

Take the hugetlb_lock before decrementing h->resv_huge_pages to avoid a
potential race.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.3.6 < 4.4
Linux ≫ Linux Kernel Version >= 4.4.1 < 4.9.332
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.298
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.264
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.223
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.153
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.76
Linux ≫ Linux Kernel Version >= 5.16 < 6.0.6
Linux ≫ Linux Kernel Version4.4 Update-
Linux ≫ Linux Kernel Version4.4 Updaterc5
Linux ≫ Linux Kernel Version4.4 Updaterc6
Linux ≫ Linux Kernel Version4.4 Updaterc7
Linux ≫ Linux Kernel Version4.4 Updaterc8
Linux ≫ Linux Kernel Version6.1 Updaterc1
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.041
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.