git: 76e5fcc2874e - stable/14 - ast: do not dereference NULL td_proc in CTR statement

[Konstantin Belousov]

The branch stable/14 has been updated by kib:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=76e5fcc2874e821d28804a6e2c25b3f7aaf5f9ce

commit 76e5fcc2874e821d28804a6e2c25b3f7aaf5f9ce
Author:     Konstantin Belousov <k...@freebsd.org>
AuthorDate: 2025-07-14 21:54:34 +0000
Commit:     Konstantin Belousov <k...@freebsd.org>
CommitDate: 2025-07-17 00:28:21 +0000

    ast: do not dereference NULL td_proc in CTR statement
    
    (cherry picked from commit 42f1054ef12d10f3ba46770b985a320b0ceb9f2f)
---
 sys/kern/subr_trap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sys/kern/subr_trap.c b/sys/kern/subr_trap.c
index 5a89ba8b6500..e836e5383c4b 100644
--- a/sys/kern/subr_trap.c
+++ b/sys/kern/subr_trap.c
@@ -340,8 +340,9 @@ ast_handler(struct thread *td, struct trapframe *framep, 
bool dtor)
                td->td_ast = 0;
        }
 
-       CTR3(KTR_SYSC, "ast: thread %p (pid %d, %s)", td, td->td_proc->p_pid,
-            td->td_proc->p_comm);
+       CTR3(KTR_SYSC, "ast: thread %p (pid %d, %s)", td,
+            td->td_proc == NULL ? -1 : td->td_proc->p_pid,
+            td->td_proc == NULL ? "" : td->td_proc->p_comm);
        KASSERT(framep == NULL || TRAPF_USERMODE(framep),
            ("ast in kernel mode"));