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
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.043
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.
https://git.kernel.org/stable/c/3e50a07b6a5fcd39df1534d3fdaca4292a65efe6
Patch
https://git.kernel.org/stable/c/629c986e19fe9481227c7cdfd9a105bbc104d245
Patch
https://git.kernel.org/stable/c/2b35432d324898ec41beb27031d2a1a864a4d40e
Patch
https://git.kernel.org/stable/c/11993652d0b49e27272db0a37aa828d8a3a4b92b
Patch
https://git.kernel.org/stable/c/568e3812b1778b4c0c229649b59977d88f400ece
Patch
https://git.kernel.org/stable/c/112a005d1ded04a4b41b6d01833cc0bda90625cc
Patch
https://git.kernel.org/stable/c/c828fab903725279aa9dc6ae3d44bb7e4778f92c
Patch
https://git.kernel.org/stable/c/12df140f0bdfae5dcfc81800970dd7f6f632e00c
Patch