Roberto Sassu faba7916cd s390: fix strrchr() implementation ...

commit 8e0ab8e26b upstream.

Fix two problems found in the strrchr() implementation for s390
architectures: evaluate empty strings (return the string address instead of
NULL, if '\0' is passed as second argument); evaluate the first character
of non-empty strings (the current implementation stops at the second).

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reported-by: Heiko Carstens <hca@linux.ibm.com> (incorrect behavior with empty strings)
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Link: https://lore.kernel.org/r/20211005120836.60630-1-roberto.sassu@huawei.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-10-20 11:44:58 +02:00

..

appldata

s390/appldata: use struct_size() helper

2020-06-29 16:32:34 +02:00

boot

s390/boot: fix use of expolines in the DMA code

2021-07-28 14:35:42 +02:00

configs

s390: update defconfigs

2020-11-12 12:10:36 +01:00

crypto

s390/archrandom: add parameter check for s390_arch_random_generate

2021-05-11 14:47:31 +02:00

hypfs

fs_parse: fold fs_parameter_desc/fs_parameter_spec

2020-02-07 14:48:37 -05:00

include

s390: make PCI mio support a machine flag

2021-09-18 13:40:22 +02:00

kernel

s390: make PCI mio support a machine flag

2021-09-18 13:40:22 +02:00

kvm

KVM: s390: index kvm->arch.idle_mask by vcpu_idx

2021-09-15 09:50:47 +02:00

lib

s390: fix strrchr() implementation

2021-10-20 11:44:58 +02:00

mm

s390/pv: fix the forcing of the swiotlb

2021-09-18 13:40:36 +02:00

net

bpf, s390: Fix potential memory leak about jit_data

2021-10-13 10:04:29 +02:00

oprofile

s390/unwind: introduce stack unwind API

2019-05-02 13:54:11 +02:00

pci

s390/pci_mmio: fully validate the VMA before calling follow_pte()

2021-09-26 14:08:55 +02:00

purgatory

s390: disable SSP when needed

2021-07-20 16:05:42 +02:00

tools

.gitignore: add SPDX License Identifier

2020-03-25 11:50:48 +01:00

Kbuild

s390/numa: move code to arch/s390/kernel

2020-08-11 18:16:55 +02:00

Kconfig

s390: appldata depends on PROC_SYSCTL

2021-07-14 16:56:42 +02:00

Kconfig.debug

s390/mm,ptdump: convert to generic page table dumper

2020-09-14 11:38:34 +02:00

Makefile

s390: disable SSP when needed

2021-07-20 16:05:42 +02:00