5.5

CVE-2023-52646

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

aio: fix mremap after fork null-deref

Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced
a null-deref if mremap is called on an old aio mapping after fork as
mm->ioctx_table will be set to NULL.

[jmoyer@redhat.com: fix 80 column issue]
Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.19 < 4.14.306
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.273
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.232
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.169
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.95
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.13
Linux ≫ Linux Kernel Version6.2 Updaterc1
Linux ≫ Linux Kernel Version6.2 Updaterc2
Linux ≫ Linux Kernel Version6.2 Updaterc3
Linux ≫ Linux Kernel Version6.2 Updaterc4
Linux ≫ Linux Kernel Version6.2 Updaterc5
Linux ≫ Linux Kernel Version6.2 Updaterc6
Linux ≫ Linux Kernel Version6.2 Updaterc7
Linux ≫ Linux Kernel Version6.2 Updaterc8
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.01% 0.005
CVSS Metriken
Source 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
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.