From: "Iván Ezequiel Rodriguez" <ivanrwcm25@gmail.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
"Iván Ezequiel Rodriguez" <ivanrwcm25@gmail.com>
Subject: [PATCH v1 1/2] block: brd: destroy xa on allocation failure
Date: Mon, 31 Aug 2026 12:20:43 -0300 [thread overview]
Message-ID: <20260831152044.166353-2-ivanrwcm25@gmail.com> (raw)
In-Reply-To: <20260831152044.166353-1-ivanrwcm25@gmail.com>
xa_init() runs before blk_alloc_disk(); on error the path called
brd_free_device() without xa_destroy(), leaking the xarray state.
Signed-off-by: Iván Ezequiel Rodriguez <ivanrwcm25@gmail.com>
---
drivers/block/brd.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 00cc8122068f..c18262295c39 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -346,6 +346,7 @@ static int brd_alloc(int i)
out_cleanup_disk:
put_disk(disk);
out_free_dev:
+ xa_destroy(&brd->brd_pages);
brd_free_device(brd);
return err;
}
--
2.43.0
next prev parent reply other threads:[~2026-08-31 15:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-31 15:20 [PATCH v1 0/2] block: brd/loop error-path cleanup Iván Ezequiel Rodriguez
2026-08-31 15:20 ` Iván Ezequiel Rodriguez [this message]
2026-08-31 15:20 ` [PATCH v1 2/2] block: loop: restore state on loop_configure() error Iván Ezequiel Rodriguez
2026-09-01 6:59 ` [syzbot ci] Re: block: brd/loop error-path cleanup syzbot ci
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