Forwarded: [PATCH] mmc: vub300: fix sleeping function call from invalid context in vub300_inactivity_timer_expired

From: syzbot

Date: Sun Aug 16 2026 - 07:27:56 EST


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Subject: [PATCH] mmc: vub300: fix sleeping function call from invalid context in vub300_inactivity_timer_expired
Author: jakovnovak30@xxxxxxxxx

#syz test

---
drivers/mmc/host/vub300.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
index 2dae474dcd06..fee74c6ab720 100644
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -744,7 +744,8 @@ static void vub300_inactivity_timer_expired(struct timer_list *t)
struct vub300_mmc_host *vub300 = timer_container_of(vub300, t,
inactivity_timer);
if (!vub300->interface) {
- kref_put(&vub300->kref, vub300_delete);
+ //kref_put(&vub300->kref, vub300_delete);
+ vub300_queue_dead_work(vub300);
} else if (vub300->cmd) {
mod_timer(&vub300->inactivity_timer, jiffies + HZ);
} else {
--
2.55.0