* [PATCH] io_uring: use correct pointer for io_uring_show_cred()
@ 2020-11-05 16:52 Jens Axboe
0 siblings, 0 replies; only message in thread
From: Jens Axboe @ 2020-11-05 16:52 UTC (permalink / raw
To: io-uring
Previous commit changed how we index the registered credentials, but
neglected to update one spot that is used when the personalities are
iterated through ->show_fdinfo(). Ensure we use the right struct type
for the iteration.
Reported-by: syzbot+a6d494688cdb797bdfce@syzkaller.appspotmail.com
Fixes: 1e6fa5216a0e ("io_uring: COW io_identity on mismatch")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 3d489cf31926..29f1417690d5 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -8974,7 +8974,8 @@ SYSCALL_DEFINE6(io_uring_enter, unsigned int, fd, u32, to_submit,
#ifdef CONFIG_PROC_FS
static int io_uring_show_cred(int id, void *p, void *data)
{
- const struct cred *cred = p;
+ struct io_identity *iod = p;
+ const struct cred *cred = iod->creds;
struct seq_file *m = data;
struct user_namespace *uns = seq_user_ns(m);
struct group_info *gi;
--
Jens Axboe
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2020-11-05 16:52 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-11-05 16:52 [PATCH] io_uring: use correct pointer for io_uring_show_cred() Jens Axboe
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.