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Bug 1995473

Summary: Call xtables_malloc() in mnl_err_list_node_add()
Product: Red Hat Enterprise Linux 9 Reporter: Phil Sutter <psutter>
Component: iptablesAssignee: Phil Sutter <psutter>
Status: CLOSED ERRATA QA Contact: qe-baseos-daemons
Severity: low Docs Contact:
Priority: unspecified    
Version: 9.0CC: todoleza
Target Milestone: betaKeywords: Triaged, Upstream
Target Release: ---Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: iptables-1.8.7-25.el9 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2022-05-17 15:52:12 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Phil Sutter 2021-08-19 08:41:51 UTC 
Coverity tool detected this snippet:

| struct mnl_err *err = malloc(sizeof(struct mnl_err));
| 
| err->seqnum = seqnum;

Calling xtables_malloc() instead makes the program exit(1) instead of crashing if memory allocation fails.
Comment 1 Phil Sutter 2021-08-31 16:23:49 UTC 
Upstream commit to backport:

commit ca11c7b7036b5821c17b8d08dc2a29f55b461a93
Author: Phil Sutter <phil>
Date:   Tue Aug 31 12:26:20 2021 +0200

    nft: Use xtables_malloc() in mnl_err_list_node_add()
    
    The function called malloc() without checking for memory allocation
    failure. Simply replace the call by xtables_malloc() to fix that.
    
    Fixes: 4e2020952d6f9 ("xtables: use libnftnl batch API")
    Signed-off-by: Phil Sutter <phil>
Comment 3 Phil Sutter 2021-10-07 16:23:37 UTC 
https://gitlab.com/redhat/centos-stream/rpms/iptables/-/merge_requests/21
Comment 11 errata-xmlrpc 2022-05-17 15:52:12 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (new packages: iptables), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:3936