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=235097 --- 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=520194696, ifma=0xfffff8000753ee00) at /usr/src/sys/net/rtsock.c:1436 1436 m = rtsock_msg_mbuf(cmd, &info); (kgdb) p info $8 = {rti_addrs = 18, rti_flags = 0, rti_info = {0x0, 0xfffff8006c4cc300, 0x0, 0x0, 0xdeadc0dedeadc0de, 0xfffff800060102a0, 0x0, 0x0}, rti_ifa = 0x0, rti_ifp = 0x0, rti_filter = 0x0, rti_filterdata = 0x0, rti_mflags = 0, rti_spare = 0, rti_rmx = 0x0} (kgdb) p *ifp->if_addr $9 = {ifa_addr = 0xdeadc0dedeadc0de, ifa_dstaddr = 0xdeadc0dedeadc0de, ifa_netmask = 0xdeadc0dedeadc0de, ifa_ifp = 0xdeadc0dedeadc0de, ifa_carp = 0xdeadc0dedeadc0de, ifa_link = {cstqe_next = 0xdeadc0dedeadc0de}, ifa_rtrequest = 0xdeadc0dedeadc0de, ifa_flags = 49374, ifa_refcnt = 3735929054, ifa_ipackets = 0xdeadc0dedeadc0de, ifa_opackets = 0xdeadc0dedeadc0de, ifa_ibytes = 0xdeadc0dedeadc0de, ifa_obytes = 0xdeadc0dedeadc0de, ifa_epoch_ctx = {data = {0xdeadc0dedeadc0de, 0xdeadc0dedeadc0de}}} -- You are receiving this mail because: You are the assignee for the bug.
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