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Harald Welte gerrit-no-reply at lists.osmocom.orgHarald Welte has submitted this change and it was merged. Change subject: tun.c: tun_addaddr: Fix segfault and wrong usage of tun_nlattr ...................................................................... tun.c: tun_addaddr: Fix segfault and wrong usage of tun_nlattr First of all, dstaddr can be NULL, avoid copying it in that case. Second, we want to copy the addr data, not the pointer. I tested it and the IP was not added (not shown in ip addr) until I copied the content instead of the address. Change-Id: I8da637b155f0e913cab6c5b0dde355c9f33375b5 --- M lib/tun.c 1 file changed, 3 insertions(+), 2 deletions(-) Approvals: Harald Welte: Looks good to me, approved Jenkins Builder: Verified diff --git a/lib/tun.c b/lib/tun.c index d8e4b62..3081575 100644 --- a/lib/tun.c +++ b/lib/tun.c @@ -333,8 +333,9 @@ return -1; } - tun_nlattr(&req.n, sizeof(req), IFA_ADDRESS, addr, sizeof(addr)); - tun_nlattr(&req.n, sizeof(req), IFA_LOCAL, dstaddr, sizeof(dstaddr)); + tun_nlattr(&req.n, sizeof(req), IFA_ADDRESS, addr, sizeof(*addr)); + if (dstaddr) + tun_nlattr(&req.n, sizeof(req), IFA_LOCAL, dstaddr, sizeof(*dstaddr)); if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) < 0) { SYS_ERR(DTUN, LOGL_ERROR, errno, "socket() failed"); -- To view, visit https://gerrit.osmocom.org/5347 To unsubscribe, visit https://gerrit.osmocom.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I8da637b155f0e913cab6c5b0dde355c9f33375b5 Gerrit-PatchSet: 2 Gerrit-Project: osmo-ggsn Gerrit-Branch: master Gerrit-Owner: Pau Espin Pedrol <pespin at sysmocom.de> Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org> Gerrit-Reviewer: Jenkins Builder