Page MenuHomeFreeBSD
Differential D50665

route: fix rtentry double free
ClosedPublic
Actions

Authored by kp on Jun 3 2025, 12:49 PM.
Tags
None
Referenced Files
Unknown Object (File)
Thu, Oct 9, 9:03 PM
Unknown Object (File)
Fri, Oct 3, 7:27 AM
Unknown Object (File)
Fri, Oct 3, 12:13 AM
Unknown Object (File)
Wed, Oct 1, 10:04 PM
Unknown Object (File)
Tue, Sep 30, 8:45 AM
Unknown Object (File)
Fri, Sep 26, 2:20 AM
Unknown Object (File)
Sep 8 2025, 4:30 PM
Unknown Object (File)
Sep 8 2025, 9:21 AM
View All 50 Files
Subscribers
ae
glebius
imp
melifaro

Details

Reviewers
melifaro
ae
Group Reviewers
pfsense
Commits
rG38c655093c6b: route: fix rtentry double free
Summary

add_route_flags() frees the rtentry on error when called with the RTM_F_CREATE
flag. Don't free the rtentry a second time.

Sponsored by: Rubicon Communications, LLC ("Netgate")

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Not Applicable
Unit
Tests Not Applicable

Event Timeline

kp created this revision.Jun 3 2025, 12:49 PM
Herald added a reviewer: melifaro. · View Herald TranscriptJun 3 2025, 12:49 PM
Herald added subscribers: glebius, melifaro, ae, imp. · View Herald Transcript
kp requested review of this revision.Jun 3 2025, 12:49 PM
Harbormaster completed remote builds in B64614: Diff 156471.Jun 3 2025, 12:49 PM
kp added a parent revision: D50664: UPDATING: document recent pf changes.Jun 3 2025, 12:49 PM
ae added inline comments.Jun 3 2025, 3:38 PM
sys/net/route/route_ctl.c
676

Then isn't this access to freed rt_new?

kp added inline comments.Jun 3 2025, 3:56 PM
sys/net/route/route_ctl.c
676

Good catch, I missed that one.
I think we can get away with using 'rt' here instead of 'rt_new', because rt_new should be a copy of rt.

kp updated this revision to Diff 156478.Jun 3 2025, 4:26 PM

Remove one more use of rt_new

Harbormaster completed remote builds in B64618: Diff 156478.Jun 3 2025, 4:26 PM
ae accepted this revision.Jun 5 2025, 7:36 AM
This revision is now accepted and ready to land.Jun 5 2025, 7:36 AM
Closed by commit rG38c655093c6b: route: fix rtentry double free (authored by kp). · Explain WhyJun 5 2025, 9:33 AM
This revision was automatically updated to reflect the committed changes.
kp added a commit: rG38c655093c6b: route: fix rtentry double free.

Revision Contents
Changeset List

PathSize
sys/
net/
route/
3 lines

Diff 156573

View Options

sys/net/route/route_ctl.c

Loading...