git: 1ede9ecfe610 - stable/15 - kqueue: Associate marker knotes with a queue

The branch stable/15 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=1ede9ecfe61017cc28ebeb4e65506ed0efa59408

commit 1ede9ecfe61017cc28ebeb4e65506ed0efa59408
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2026-07-29 12:43:55 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2026-08-06 13:24:43 +0000

    kqueue: Associate marker knotes with a queue
    
    Otherwise the assertion in KQ_FLUX_SLEEP_WMESG may fail.
    
    kqueue_fork_copy() already handles this.
    
    Fixes:          1f4b0ea4f3eb ("kqueue: Add a helper macro for sleeping on in-flux knotes")
    Reported by:    syzkaller
    Reported by:    kbowling
    Reviewed by:    kib
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D58516
    
    (cherry picked from commit 9a9349ea1da2d80e979fa87b430551d8f6dac7f4)
---
 sys/kern/kern_event.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c
index 0a02642cccae..3990c2366ab4 100644
--- a/sys/kern/kern_event.c
+++ b/sys/kern/kern_event.c
@@ -2160,6 +2160,7 @@ kqueue_scan(struct kqueue *kq, int maxevents, struct kevent_copyops *k_ops,
 		asbt = 0;
 	memset(&marker, 0, sizeof(marker));
 	marker.kn_status = KN_MARKER;
+	marker.kn_kq = kq;
 	KQ_LOCK(kq);
 
 retry: