5.5

CVE-2023-53181

dma-buf/dma-resv: Stop leaking on krealloc() failure

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

dma-buf/dma-resv: Stop leaking on krealloc() failure

Currently dma_resv_get_fences() will leak the previously
allocated array if the fence iteration got restarted and
the krealloc_array() fails.

Free the old array by hand, and make sure we still clear
the returned *fences so the caller won't end up accessing
freed memory. Some (but not all) of the callers of
dma_resv_get_fences() seem to still trawl through the
array even when dma_resv_get_fences() failed. And let's
zero out *num_fences as well for good measure.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.42
Linux ≫ Linux Kernel Version >= 6.2 < 6.4.7
Linux ≫ Linux Kernel Version6.5 Updaterc1
Linux ≫ Linux Kernel Version6.5 Updaterc2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.039
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/19e7b9f1f7e1cb92a4cc53b4c064f7fb4b1f1983
Patch
https://git.kernel.org/stable/c/819656cc03dec7f7f7800274dfbc8eb49f888e9f
Patch
https://git.kernel.org/stable/c/05abb3be91d8788328231ee02973ab3d47f5e3d2
Patch