git: 53a78e582a6f - stable/15 - netmap: Drain selinfo sleepers in nm_os_selinfo_uninit()

The branch stable/15 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=53a78e582a6f4c74ff9f8a49c942bf4a675d4403

commit 53a78e582a6f4c74ff9f8a49c942bf4a675d4403
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2026-05-19 00:09:54 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2026-05-20 19:36:00 +0000

    netmap: Drain selinfo sleepers in nm_os_selinfo_uninit()
    
    Approved by:    so
    Security:       FreeBSD-SA-26:19.file
    Security:       CVE-2026-45251
---
 sys/dev/netmap/netmap_freebsd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/dev/netmap/netmap_freebsd.c b/sys/dev/netmap/netmap_freebsd.c
index 9fb4370129f3..2241bfc970a6 100644
--- a/sys/dev/netmap/netmap_freebsd.c
+++ b/sys/dev/netmap/netmap_freebsd.c
@@ -119,6 +119,7 @@ nm_os_selinfo_uninit(NM_SELINFO_T *si)
 	taskqueue_drain(si->ntfytq, &si->ntfytask);
 	taskqueue_free(si->ntfytq);
 	si->ntfytq = NULL;
+	seldrain(&si->si);
 	knlist_delete(&si->si.si_note, curthread, /*islocked=*/0);
 	knlist_destroy(&si->si.si_note);
 	/* now we don't need the mutex anymore */