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Geert Uytterhoeven 0278b34bf1 spi: spidev_test: Fix buffer overflow in unescape() 
Sometimes spidev_test crashes with:

    *** Error in `spidev_test': munmap_chunk(): invalid pointer: 0x00022020 ***
    Aborted

or just

    Segmentation fault

This is due to transfer_escaped_string() miscalculating the required
size of the buffer by one byte, causing a buffer overflow in unescape().

Drop the bogus "+ 1" in the strlen() parameter to fix this.

Note that unescape() never copies the zero-terminator of the source
string, so it writes at most as many bytes as the length of the source
string.

Fixes: 30061915be (spi: spidev_test: Added input buffer from the terminal)
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org> # v4.5+
2016-09-14 16:22:43 +01:00
..
arch tools: Copy the bitsperlong.h files from the kernel 2016-07-12 15:20:39 -03:00
build perf build: Add sdt feature detection 2016-07-13 23:09:09 -03:00
cgroup
firewire
gpio tools/gpio: add install section 2016-06-23 11:07:13 +02:00
hv tools: hv: Add a script to help bonding synthetic and VF NICs 2016-07-12 10:41:53 -07:00
iio iio: generic_buffer: Fix --trigger-num option 2016-06-11 17:38:06 +01:00
include tools lib: Add bitmap_and function 2016-08-02 16:33:27 -03:00
kvm/kvm_stat tools: kvm_stat: Add comments 2016-05-25 16:12:06 +02:00
laptop/freefall
lguest tools/lguest: Force disable tboot and APM 2016-04-22 10:29:03 +02:00
lib perf/core improvements and fixes: 2016-08-04 11:02:38 +02:00
net tools: bpf_jit_disasm: check for klogctl failure 2016-05-08 23:32:59 -04:00
nfsd
objtool Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-07-30 11:54:53 -07:00
perf perf/core improvements and fixes: 2016-08-04 11:02:38 +02:00
power ACPI material for v4.8-rc1 2016-07-26 17:56:45 -07:00
scripts tools build: Fix objtool build with ARCH=x86_64 2016-07-22 16:37:44 -03:00
spi spi: spidev_test: Fix buffer overflow in unescape() 2016-09-14 16:22:43 +01:00
testing NTB bug fixes for the ntb_tool and ntb_perf, and improvements to the 2016-08-05 23:56:11 -04:00
thermal/tmon
time
usb usbip: adding names db to port operation 2016-05-03 14:32:07 -07:00
virtio ptr_ring: support resizing multiple queues 2016-07-01 05:32:17 -04:00
vm tools/vm/page_owner: increase temporary buffer size 2016-07-26 16:19:19 -07:00
Makefile tools/gpio: add install section 2016-06-23 11:07:13 +02:00