linux/arch/s390
Michael Holzheu 272fa59ccb s390/dis: Fix handling of format specifiers
The print_insn() function returns strings like "lghi %r1,0". To escape the
'%' character in sprintf() a second '%' is used. For example "lghi %%r1,0"
is converted into "lghi %r1,0".

After print_insn() the output string is passed to printk(). Because format
specifiers like "%r" or "%f" are ignored by printk() this works by chance
most of the time. But for instructions with control registers like
"lctl %c6,%c6,780" this fails because printk() interprets "%c" as
character format specifier.

Fix this problem and escape the '%' characters twice.

For example "lctl %%%%c6,%%%%c6,780" is then converted by sprintf()
into "lctl %%c6,%%c6,780" and by printk() into "lctl %c6,%c6,780".

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-12-18 14:43:21 +01:00
..
appldata s390: appldata: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
boot s390/boot/decompression: disable floating point in decompressor 2015-09-29 14:45:10 +02:00
configs s390/defconfig: set SCSI_DH=y 2015-10-01 10:48:36 +02:00
crypto crypto: s390/sha - replace raw value by their coresponding define 2015-10-15 21:05:11 +08:00
hypfs s390/diag: add a statistic for diagnose calls 2015-10-14 14:32:06 +02:00
include s390: wire up mlock2 system call 2015-11-16 12:51:07 +01:00
kernel s390/dis: Fix handling of format specifiers 2015-12-18 14:43:21 +01:00
kvm KVM: s390: fix wrong lookup of VCPUs by array index 2015-11-19 14:47:43 +01:00
lib s390/bitops: remove 31 bit related comments 2015-10-14 14:32:15 +02:00
mm s390: avoid cache aliasing under z/VM and KVM 2015-11-16 12:04:18 +01:00
net ebpf: migrate bpf_prog's flags to bitfield 2015-10-03 05:02:39 -07:00
numa s390/numa: write kernel message when emu_size has been increased 2015-10-14 14:31:59 +02:00
oprofile s390/oprofile: fix compile error 2015-07-01 09:34:39 +02:00
pci s390/pci_dma: improve debugging of errors during dma map 2015-11-09 09:10:49 +01:00
defconfig s390: new default configuration 2015-06-25 09:39:25 +02:00
Kbuild s390/numa: add core infrastructure 2015-08-03 18:40:25 +02:00
Kconfig IOMMU Updates for Linux v4.4 2015-11-05 16:12:10 -08:00
Kconfig.debug Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2013-04-30 17:04:09 -07:00
Makefile s390/sclp: convert early sclp console code to C 2015-07-29 09:11:39 +02:00