Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
trace_events_hist: add check for return value of ‘create_hist_field’
Function ‘create_hist_field’ is called recursively at trace_events_hist.c:1954 and can return NULL-value that’s why we have to check it to avoid null pointer dereference.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Details
- Affected product:
- AlmaLinux 9.2 ESU , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , TuxCare 9.6 ESU , Ubuntu 20.04 ELS
- Affected packages:
- kernel @ 4.18.0 (+5 more)
In the Linux kernel, the following vulnerability has been resolved:
trace_events_hist: add check for return value of ‘create_hist_field’
Function ‘create_hist_field’ is called recursively at trace_events_hist.c:1954 and can return NULL-value that’s why we have to check it to avoid null pointer dereference.
Found by Linux Verification Center (linuxtesting.org) with SVACE.