From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Nicolai Stange <nicstange@gmail.com>,
Christian Lamparter <chunkeey@gmail.com>
Subject: [PATCH 4.8 09/57] b43legacy: fix debugfs crash
Date: Fri, 21 Oct 2016 11:17:32 +0200 [thread overview]
Message-ID: <20161021091435.853652444@linuxfoundation.org> (raw)
In-Reply-To: <20161021091435.435647262@linuxfoundation.org>
4.8-stable review patch. If anyone has any objections, please let me know.
------------------
From: Christian Lamparter <chunkeey@googlemail.com>
commit 9c4a45b17e094a090e96beb1138e34c2a10c6b8c upstream.
This patch fixes a crash that happens because b43legacy's
debugfs code expects file->f_op to be a pointer to its own
b43legacy_debugfs_fops struct. This is no longer the case
since commit 9fd4dcece43a
("debugfs: prevent access to possibly dead file_operations at file open")
Reviewed-by: Nicolai Stange <nicstange@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/broadcom/b43legacy/debugfs.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/net/wireless/broadcom/b43legacy/debugfs.c
+++ b/drivers/net/wireless/broadcom/b43legacy/debugfs.c
@@ -221,7 +221,8 @@ static ssize_t b43legacy_debugfs_read(st
goto out_unlock;
}
- dfops = container_of(file->f_op, struct b43legacy_debugfs_fops, fops);
+ dfops = container_of(debugfs_real_fops(file),
+ struct b43legacy_debugfs_fops, fops);
if (!dfops->read) {
err = -ENOSYS;
goto out_unlock;
@@ -287,7 +288,8 @@ static ssize_t b43legacy_debugfs_write(s
goto out_unlock;
}
- dfops = container_of(file->f_op, struct b43legacy_debugfs_fops, fops);
+ dfops = container_of(debugfs_real_fops(file),
+ struct b43legacy_debugfs_fops, fops);
if (!dfops->write) {
err = -ENOSYS;
goto out_unlock;
next prev parent reply other threads:[~2016-10-21 9:17 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20161021092156uscas1p2448161ce8162a8e99cfe189d1b435176@uscas1p2.samsung.com>
2016-10-21 9:17 ` [PATCH 4.8 00/57] 4.8.4-stable review Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 03/57] serial: 8250_dw: Check the data->pclk when get apb_pclk Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 04/57] serial: 8250_port: fix runtime PM use in __do_stop_tx_rs485() Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 05/57] ARCv2: intc: Use kflag if STATUS32.IE must be reset Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 06/57] ARCv2: fix local_save_flags Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 07/57] debugfs: introduce a public file_operations accessor Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 08/57] b43: fix debugfs crash Greg Kroah-Hartman
2016-10-21 9:17 ` Greg Kroah-Hartman [this message]
2016-10-21 9:17 ` [PATCH 4.8 10/57] carl9170: fix debugfs crashes Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 14/57] btrfs: assign error values to the correct bio structs Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 15/57] mei: amthif: fix deadlock in initialization during a reset Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 16/57] drivers: base: dma-mapping: page align the size when unmap_kernel_range Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 17/57] IB/hfi1: Fix defered ack race with qp destroy Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 18/57] clk: mvebu: fix setting unwanted flags in CP110 gate clock Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 19/57] clk: mvebu: dynamically allocate resources in Armada CP110 system controller Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 20/57] fuse: listxattr: verify xattr list Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 22/57] fuse: fix killing s[ug]id in setattr Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 23/57] mm: filemap: fix mapping->nrpages double accounting in fuse Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 24/57] i40e: avoid NULL pointer dereference and recursive errors on early PCI error Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 25/57] xfs: change mailing list address Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 26/57] mm: filemap: dont plant shadow entries without radix tree node Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 27/57] brcmfmac: fix pmksa->bssid usage Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 30/57] ASoC: nau8825: fix bug in FLL parameter Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 31/57] ASoC: Intel: Atom: add a missing star in a memcpy call Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 32/57] reiserfs: Unlock superblock before calling reiserfs_quota_on_mount() Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 33/57] async_pq_val: fix DMA memory leak Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 34/57] autofs: Fix automounts by using current_real_cred()->uid Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 35/57] scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer() Greg Kroah-Hartman
2016-10-21 9:17 ` [PATCH 4.8 36/57] scsi: arcmsr: Simplify user_len checking Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 37/57] scsi: ibmvfc: Fix I/O hang when port is not mapped Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 38/57] ipc/sem.c: fix complex_count vs. simple op race Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 39/57] mm/hugetlb: fix memory offline with hugepage size > memory block size Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 40/57] vfs,mm: fix a dead loop in truncate_inode_pages_range() Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 41/57] jbd2: fix lockdep annotation in add_transaction_credits() Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 42/57] ext4: enforce online defrag restriction for encrypted files Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 43/57] ext4: reinforce check of i_dtime when clearing high fields of uid and gid Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 45/57] ext4: fix memory leak in ext4_insert_range() Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 46/57] ext4: fix memory leak when symlink decryption fails Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 47/57] ext4: allow DAX writeback for hole punch Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 48/57] ext4: release bh in make_indexed_dir Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 49/57] ext4: unmap metadata when zeroing blocks Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 50/57] crypto: ghash-generic - move common definitions to a new header file Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 51/57] crypto: vmx - Fix memory corruption caused by p8_ghash Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 52/57] dlm: free workqueues after the connections Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 53/57] vfs: move permission checking into notify_change() for utimes(NULL) Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 54/57] cachefiles: Fix attempt to read i_blocks after deleting file [ver #2] Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 55/57] drm: virtio: reinstate drm_virtio_set_busid() Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 56/57] acpi, nfit: check for the correct event code in notifications Greg Kroah-Hartman
2016-10-21 9:18 ` [PATCH 4.8 57/57] cfq: fix starvation of asynchronous writes Greg Kroah-Hartman
2016-10-21 15:46 ` [PATCH 4.8 00/57] 4.8.4-stable review Shuah Khan
2016-10-22 9:56 ` Greg Kroah-Hartman
2016-10-21 19:17 ` Guenter Roeck
2016-10-22 9:56 ` Greg Kroah-Hartman
2016-10-21 21:02 ` Rafael J. Wysocki
2016-10-22 9:58 ` Greg Kroah-Hartman
2016-10-23 0:04 ` Rafael J. Wysocki
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