diff options
| author | Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru> | 2022-11-29 09:23:38 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-12-11 19:30:19 -0800 |
| commit | 4d8586e04602fe42f0a782d2005956f8b6302678 (patch) | |
| tree | ac2051b7ffde584efba33e9aa71baa2c66c56412 /kernel/relay.c | |
| parent | c9a934c7d88413a35861387a11e901554810b122 (diff) | |
relay: fix type mismatch when allocating memory in relay_create_buf()
The 'padding' field of the 'rchan_buf' structure is an array of 'size_t'
elements, but the memory is allocated for an array of 'size_t *' elements.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Link: https://lkml.kernel.org/r/20221129092002.3538384-1-Ilia.Gavrilov@infotecs.ru
Fixes: b86ff981a825 ("[PATCH] relay: migrate from relayfs to a generic relay API")
Signed-off-by: Ilia.Gavrilov <Ilia.Gavrilov@infotecs.ru>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: wuchi <wuchi.zero@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/relay.c')
| -rw-r--r-- | kernel/relay.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/relay.c b/kernel/relay.c index 0a3d2e702001..ef12532168d9 100644 --- a/kernel/relay.c +++ b/kernel/relay.c @@ -148,13 +148,13 @@ static struct rchan_buf *relay_create_buf(struct rchan *chan) { struct rchan_buf *buf; - if (chan->n_subbufs > KMALLOC_MAX_SIZE / sizeof(size_t *)) + if (chan->n_subbufs > KMALLOC_MAX_SIZE / sizeof(size_t)) return NULL; buf = kzalloc(sizeof(struct rchan_buf), GFP_KERNEL); if (!buf) return NULL; - buf->padding = kmalloc_array(chan->n_subbufs, sizeof(size_t *), + buf->padding = kmalloc_array(chan->n_subbufs, sizeof(size_t), GFP_KERNEL); if (!buf->padding) goto free_buf; |