git: 224e20ceb121 - stable/14 - gve: Make gve_free_qpls idempotent

From: Xin LI <delphij_at_FreeBSD.org>
Date: Fri, 21 Jun 2024 05:45:04 UTC
The branch stable/14 has been updated by delphij:

URL: https://cgit.FreeBSD.org/src/commit/?id=224e20ceb1212579887397b67c43b42d41108c62

commit 224e20ceb1212579887397b67c43b42d41108c62
Author:     Shailend Chand <shailend@google.com>
AuthorDate: 2024-06-05 05:31:46 +0000
Commit:     Xin LI <delphij@FreeBSD.org>
CommitDate: 2024-06-21 05:44:34 +0000

    gve: Make gve_free_qpls idempotent
    
    This fixes a panic caused by double free.
    
    PR:     kern/279410
    Differential Revision: https://reviews.freebsd.org/D45489
    
    (cherry picked from commit b81cbb12410b000074483899e61e9e767ba3ec1d)
---
 sys/dev/gve/gve_qpl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/dev/gve/gve_qpl.c b/sys/dev/gve/gve_qpl.c
index 3c6d9af6feee..9a946a2a2f2d 100644
--- a/sys/dev/gve/gve_qpl.c
+++ b/sys/dev/gve/gve_qpl.c
@@ -182,6 +182,7 @@ gve_free_qpls(struct gve_priv *priv)
 		for (i = 0; i < num_qpls; i++)
 			gve_free_qpl(priv, i);
 		free(priv->qpls, M_GVE_QPL);
+		priv->qpls = NULL;
 	}
 }