[Bug 1754] __list_add SIGSEGV fault

[bugzilla-daemon at netfilter.org]

https://bugzilla.netfilter.org/show_bug.cgi?id=1754

--- Comment #9 from Egbert S <s.egbert at sbcglobal.net> ---
Ummm, this is nftables_1.0.6-2+deb12u2.debian.tar.xz

A partial of your supplied snippet's backtrace:

    #3 0x7ffb77cf86ad in nft_cmd_collapse src/cmd.c:478

That is actually inside your src/cmd.c instead of src/rule.c for my
1.0.6-2+deb12u2.

re-checking...  patched.  Recompile/relink.

Reran, same SIGSEGV.

Nope, this fix isn't it (at least for 1.0.6-2+deb12u2).

Will continue with slow-debug watch session on 'prev' pointer being NULL.



Details:

$ apt show nftables
Package: nftables
Version: 1.0.6-2+deb12u2
Priority: important
Section: net
Maintainer: Debian Netfilter Packaging Team
<pkg-netfilter-team at lists.alioth.debian.org>
Installed-Size: 180 kB
Depends: libnftables1 (= 1.0.6-2+deb12u2), libc6 (>= 2.34), libedit2 (>=
3.1-20130611-0)
Recommends: netbase
Suggests: firewalld
Homepage: https://www.netfilter.org/
Download-Size: 70.3 kB
APT-Manual-Installed: yes
APT-Sources: http://deb.debian.org/debian bookworm/main amd64 Packages
Description: Program to control packet filtering rules by Netfilter project
 This software provides an in-kernel packet classification framework that is
 based on a network-specific Virtual Machine (VM) and the nft userspace
 command line tool. The nftables framework reuses the existing Netfilter
 subsystems such as the existing hook infrastructure, the connection tracking
 system, NAT, userspace queueing and logging subsystem.
 .
 nftables replaces the old popular iptables, ip6tables, arptables and ebtables.
 .
 Netfilter software and nftables in particular are used in applications such
 as Internet connection sharing, firewalls, IP accounting, transparent
 proxying, advanced routing and traffic control.
 .
 A Linux kernel >= 3.13 is required. However, >= 4.14 is recommended.

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