5.5

CVE-2022-49832

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

pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map

Here is the BUG report by KASAN about null pointer dereference:

BUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50
Read of size 1 at addr 0000000000000000 by task python3/2640
Call Trace:
 strcmp
 __of_find_property
 of_find_property
 pinctrl_dt_to_map

kasprintf() would return NULL pointer when kmalloc() fail to allocate.
So directly return ENOMEM, if kasprintf() return NULL pointer.
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Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 3.5 < 4.9.334
LinuxLinux Kernel Version >= 4.10 < 4.14.300
LinuxLinux Kernel Version >= 4.15 < 4.19.267
LinuxLinux Kernel Version >= 4.20 < 5.4.225
LinuxLinux Kernel Version >= 5.5 < 5.10.156
LinuxLinux Kernel Version >= 5.11 < 5.15.80
LinuxLinux Kernel Version >= 5.16 < 6.0.10
LinuxLinux Kernel Version6.1 Updaterc1
LinuxLinux Kernel Version6.1 Updaterc2
LinuxLinux Kernel Version6.1 Updaterc3
LinuxLinux Kernel Version6.1 Updaterc4
LinuxLinux Kernel Version6.1 Updaterc5
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.053
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
CWE-476 NULL Pointer Dereference

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