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authorJens Axboe <axboe@kernel.dk>2020-11-05 09:50:16 -0700
committerJens Axboe <axboe@kernel.dk>2020-11-05 09:50:16 -0700
commit6b47ab81c9a9b56a94882815e9949d40e4207c92 (patch)
tree0bd11bb0ea105d6af003764f0b585468c2a853b6 /fs/io_uring.c
parentio_uring: don't forget to task-cancel drained reqs (diff)
downloadlinux-dev-6b47ab81c9a9b56a94882815e9949d40e4207c92.tar.xz
linux-dev-6b47ab81c9a9b56a94882815e9949d40e4207c92.zip
io_uring: use correct pointer for io_uring_show_cred()
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>
Diffstat (limited to 'fs/io_uring.c')
-rw-r--r--fs/io_uring.c3
1 files changed, 2 insertions, 1 deletions
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 @@ out_fput:
#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;