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Groups > linux.kernel > #1341502
| From | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3.14 37/70] iio: adis_buffer: Fix out-of-bounds memory access |
| Date | 2016-02-24 06:10 +0100 |
| Message-ID | <r5zS2-84d-3@gated-at.bofh.it> (permalink) |
| References | <r5yVY-7pJ-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lars-Peter Clausen <lars@metafoo.de>
commit d590faf9e8f8509a0a0aa79c38e87fcc6b913248 upstream.
The SPI tx and rx buffers are both supposed to be scan_bytes amount of
bytes large and a common allocation is used to allocate both buffers. This
puts the beginning of the tx buffer scan_bytes bytes after the rx buffer.
The initialization of the tx buffer pointer is done adding scan_bytes to
the beginning of the rx buffer, but since the rx buffer is of type __be16
this will actually add two times as much and the tx buffer ends up pointing
after the allocated buffer.
Fix this by using scan_count, which is scan_bytes / 2, instead of
scan_bytes when initializing the tx buffer pointer.
Fixes: aacff892cbd5 ("staging:iio:adis: Preallocate transfer message")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/imu/adis_buffer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/imu/adis_buffer.c
+++ b/drivers/iio/imu/adis_buffer.c
@@ -43,7 +43,7 @@ int adis_update_scan_mode(struct iio_dev
return -ENOMEM;
rx = adis->buffer;
- tx = rx + indio_dev->scan_bytes;
+ tx = rx + scan_count;
spi_message_init(&adis->msg);
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Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:00 +0100 [PATCH 3.14 43/70] udf: Prevent buffer overrun with multi-byte characters Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:00 +0100 [PATCH 3.14 44/70] udf: Check output buffer length when converting name to CS0 Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:00 +0100 [PATCH 3.14 10/70] AIO: properly check iovec sizes Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 37/70] iio: adis_buffer: Fix out-of-bounds memory access Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 03/70] ALSA: seq: Fix double port list deletion Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 34/70] iio:ad5064: Make sure ad5064_i2c_write() returns 0 on success Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 24/70] SCSI: Fix NULL pointer dereference in runtime PM Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 29/70] scsi_dh_rdac: always retry MODE SELECT on command lock violation Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 31/70] scsi: fix soft lockup in scsi_remove_target() on module removal Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 23/70] Fix a memory leak in scsi_host_dev_release() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 30/70] SCSI: Add Marvell Console to VPD blacklist Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 28/70] drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 13/70] Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 27/70] SCSI: fix crashes in sd and sr runtime PM Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 35/70] iio: ad5064: Fix ad5629/ad5669 shift Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 25/70] Revert "SCSI: Fix NULL pointer dereference in runtime PM" Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 32/70] iio:ad7793: Fix ad7785 product ID Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 26/70] iscsi-target: Fix potential dead-lock during node acl delete Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 38/70] iio: dac: mcp4725: set iio name property in sysfs Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 11/70] ext4: fix potential integer overflow Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 33/70] iio: lpc32xx_adc: fix warnings caused by enabling unprepared clock Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:10 +0100 [PATCH 3.14 22/70] iscsi-target: Fix rx_login_comp hang after login failure Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:20 +0100 [PATCH 3.14 02/70] drm/i915: get runtime PM reference around GEM set_caching IOCTL Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:30 +0100 [PATCH 3.14 19/70] klist: fix starting point removed bug in klist iterators Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:30 +0100 [PATCH 3.14 18/70] tracing: Fix freak link error caused by branch tracer Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:30 +0100 [PATCH 3.14 16/70] ptrace: use fsuid, fsgid, effective creds for fs access checks Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:30 +0100 [PATCH 3.14 20/70] scsi: restart list search after unlock in scsi_remove_target Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:30 +0100 [PATCH 3.14 17/70] tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:30 +0100 [PATCH 3.14 21/70] scsi_sysfs: Fix queue_ramp_up_period return code Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-02-24 06:30 +0100 Re: [PATCH 3.14 00/70] 3.14.62-stable review Shuah Khan <shuahkh@osg.samsung.com> - 2016-02-24 19:30 +0100 Re: [PATCH 3.14 00/70] 3.14.62-stable review Guenter Roeck <linux@roeck-us.net> - 2016-02-25 07:00 +0100
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