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[2003:dc:6f2c:8700:230:64ff:fe74:809]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-434aa74fec9sm31929615e9.6.2024.11.27.13.20.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Nov 2024 13:20:29 -0800 (PST) From: Max Kellermann To: amarkuze@redhat.com, xiubli@redhat.com, idryomov@gmail.com, ceph-devel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org, Max Kellermann Subject: [PATCH] fs/ceph/file: fix memory leaks in __ceph_sync_read() Date: Wed, 27 Nov 2024 22:20:27 +0100 Message-ID: <20241127212027.2704515-1-max.kellermann@ionos.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" In two `break` statements, the call to ceph_release_page_vector() was missing, leaking the allocation from ceph_alloc_page_vector(). Cc: stable@vger.kernel.org Signed-off-by: Max Kellermann --- fs/ceph/file.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 4b8d59ebda00..24d0f1cc9aac 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1134,6 +1134,7 @@ ssize_t __ceph_sync_read(struct inode *inode, loff_t = *ki_pos, extent_cnt =3D __ceph_sparse_read_ext_count(inode, read_len); ret =3D ceph_alloc_sparse_ext_map(op, extent_cnt); if (ret) { + ceph_release_page_vector(pages, num_pages); ceph_osdc_put_request(req); break; } @@ -1168,6 +1169,7 @@ ssize_t __ceph_sync_read(struct inode *inode, loff_t = *ki_pos, op->extent.sparse_ext_cnt); if (fret < 0) { ret =3D fret; + ceph_release_page_vector(pages, num_pages); ceph_osdc_put_request(req); break; } --=20 2.45.2