Date: Thu, 24 Jan 2019 00:59:02 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 235097] ci runs panic with use-after-free when running sys/netpfil/pf/nat tests Message-ID: <bug-235097-7501-ctlEgUEaQE@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-235097-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-235097-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D235097 --- Comment #10 from Kristof Provost <kp@freebsd.org> --- The panic in comment #6 seems to happen because ifp->if_addr has been freed. (kgdb) fr #16 0xffffffff80d087e8 in rt_newmaddrmsg (cmd=3D520194696, ifma=3D0xfffff8000753ee00) at /usr/src/sys/net/rtsock.c:1436 1436 m =3D rtsock_msg_mbuf(cmd, &info); (kgdb) p info $8 =3D {rti_addrs =3D 18, rti_flags =3D 0, rti_info =3D {0x0, 0xfffff8006c4= cc300, 0x0, 0x0, 0xdeadc0dedeadc0de, 0xfffff800060102a0, 0x0, 0x0}, rti_ifa =3D 0x0, rt= i_ifp =3D 0x0, rti_filter =3D 0x0, rti_filterdata =3D 0x0, rti_mflags =3D 0, rti_spare = =3D 0, rti_rmx =3D 0x0} (kgdb) p *ifp->if_addr $9 =3D {ifa_addr =3D 0xdeadc0dedeadc0de, ifa_dstaddr =3D 0xdeadc0dedeadc0de, ifa_netmask =3D 0xdeadc0dedeadc0de, ifa_ifp =3D 0xdeadc0dedeadc0de, ifa_car= p =3D 0xdeadc0dedeadc0de, ifa_link =3D {cstqe_next =3D 0xdeadc0dedeadc0de}, ifa_rtrequest =3D 0xdeadc0dedeadc0de, ifa_flags =3D 49374, ifa_refcnt =3D 3735929054, ifa_ipa= ckets =3D 0xdeadc0dedeadc0de, ifa_opackets =3D 0xdeadc0dedeadc0de, ifa_ibytes =3D 0xdeadc0dedeadc0de, ifa_obytes =3D 0xdeadc0dedeadc0de, ifa_epoch_ctx =3D {data =3D {0xdeadc0ded= eadc0de, 0xdeadc0dedeadc0de}}} --=20 You are receiving this mail because: You are the assignee for the bug.=
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