git: 6894d9a74aa1 - stable/14 - netmap: Don't assume that user-provided strings are nul-terminated
Mark Johnston <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.cvs.src |
|---|---|
| Message-ID | <6a67dc83.25644.787619eb__12802.296276071$1785191578$gmane$org@gitrepo.freebsd.org> |
The branch stable/14 has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=6894d9a74aa1c588d77c131568bd87571bd15316 commit 6894d9a74aa1c588d77c131568bd87571bd15316 Author: Mark Johnston <[email protected]> AuthorDate: 2026-07-08 17:11:05 +0000 Commit: Mark Johnston <[email protected]> CommitDate: 2026-07-27 14:05:07 +0000 netmap: Don't assume that user-provided strings are nul-terminated MFC after: 1 week Sponsored by: The FreeBSD Foundation (cherry picked from commit e1ab35148dd425340a88a2acaf10b972cb119f8f) --- sys/dev/netmap/netmap_bdg.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sys/dev/netmap/netmap_bdg.c b/sys/dev/netmap/netmap_bdg.c index bcb45f55d160..1fe5052448f8 100644 --- a/sys/dev/netmap/netmap_bdg.c +++ b/sys/dev/netmap/netmap_bdg.c @@ -1043,6 +1043,10 @@ netmap_bdg_config(struct nm_ifreq *nr) struct nm_bridge *b; int error = EINVAL; + if (strnlen(nr->nifr_name, sizeof(nr->nifr_name)) >= + sizeof(nr->nifr_name)) + return error; + NMG_LOCK(); b = nm_find_bridge(nr->nifr_name, 0, NULL); if (!b) {