7.8

CVE-2021-47614

RDMA/irdma: Fix a user-after-free in add_pble_prm

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

RDMA/irdma: Fix a user-after-free in add_pble_prm

When irdma_hmc_sd_one fails, 'chunk' is freed while its still on the PBLE
info list.

Add the chunk entry to the PBLE info list only after successful setting of
the SD in irdma_hmc_sd_one.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.14 < 5.15.10
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.119
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/11eebcf63e98fcf047a876a51d76afdabc3b8b9b
Patch
https://git.kernel.org/stable/c/1e11a39a82e95ce86f849f40dda0d9c0498cebd9
Patch