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linux/arch/s390/kernel
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Peter Oberparleiter 5c95bf2746 s390/cert_store: fix string length handling 
Building cert_store.o with W=1 reveals this bug:

        CC      arch/s390/kernel/cert_store.o
          arch/s390/kernel/cert_store.c:443:45: warning: ‘sprintf’ may write a terminating nul past the end of the destination [-Wformat-overflow=]
            443 |         sprintf(desc + name_len, ":%04u:%08u", vce->vce_hdr.vc_index, cs_token);
                |                                             ^
          arch/s390/kernel/cert_store.c:443:9: note: ‘sprintf’ output between 15 and 18 bytes into a destination of size 15
            443 |         sprintf(desc + name_len, ":%04u:%08u", vce->vce_hdr.vc_index, cs_token);

Fix this by using the correct maximum width for each integer component
in both buffer length calculation and format string. Also switch to
using snprintf() to guard against potential future changes to the
integer range of each component.

Fixes: 8cf57d7217 ("s390: add support for user-defined certificates")
Reported-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2023-09-19 13:25:44 +02:00
..
syscalls arch: Register fchmodat2, usually as syscall 452 2023-07-27 12:25:35 +02:00
vdso32 s390/vdso: filter out mno-pic-data-is-text-relative cflag 2023-06-28 13:57:10 +02:00
vdso64 s390/vdso: filter out mno-pic-data-is-text-relative cflag 2023-06-28 13:57:10 +02:00
.gitignore
abs_lowcore.c s390/mm: allocate Absolute Lowcore Area in decompressor 2023-01-13 14:15:06 +01:00
alternative.c s390/alternatives: remove padding generation code 2022-05-17 15:16:28 +02:00
asm-offsets.c s390/tracing: pass struct ftrace_regs to ftrace_trace_function 2023-07-24 12:12:24 +02:00
audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
audit.h
cache.c s390/cache: change type from unsigned long long to unsigned long 2023-01-25 20:51:09 +01:00
cert_store.c s390/cert_store: fix string length handling 2023-09-19 13:25:44 +02:00
compat_audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
compat_linux.c
compat_linux.h s390/compat: cleanup compat_linux.h header file 2022-05-06 20:45:16 +02:00
compat_ptrace.h
compat_signal.c s390/vx: use simple assignments to access __vector128 members 2023-02-09 20:11:23 +01:00
cpcmd.c s390: include linux/io.h instead of asm/io.h 2023-07-03 11:19:40 +02:00
cpufeature.c s390/uvdevice: autoload module based on CPU facility 2022-07-19 16:18:49 +02:00
crash_dump.c s390/crash: use the correct type for memory allocation 2023-06-20 19:52:12 +02:00
debug.c s390/debug: replace zero-length array with flexible-array member 2023-04-13 17:36:28 +02:00
diag.c s390/diag: fix diagnose 8c description 2023-07-27 13:11:35 +02:00
dis.c s390: fix various typos 2023-07-03 11:19:42 +02:00
dumpstack.c s390/dumpstack: simplify in stack logic code 2023-04-04 18:34:55 +02:00
early_printk.c s390/sclp: remove unused sclp_early_printk_forced 2020-09-21 08:08:44 +02:00
early.c s390/mm: simplify kernel mapping setup 2023-08-30 11:03:27 +02:00
earlypgm.S s390/earlypgm: use SYM* macros instead of ENTRY(), etc. 2023-04-19 17:24:17 +02:00
ebcdic.c s390/ebcdic: fix typo in comment 2023-07-27 13:11:35 +02:00
entry.h init: consolidate prototypes in linux/init.h 2023-06-09 17:44:16 -07:00
entry.S s390: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-09 15:20:50 +02:00
fpu.c s390/vx: add vx-insn.h wrapper include file 2022-12-06 16:18:23 +01:00
ftrace.c s390/ftrace: do not assume module_alloc() returns executable memory 2023-04-13 17:36:26 +02:00
ftrace.h s390: raise minimum supported machine generation to z10 2022-03-10 15:58:17 +01:00
guarded_storage.c
head64.S s390: consistently use .balign instead of .align 2023-06-28 13:57:09 +02:00
idle.c sched/idle: Mark arch_cpu_idle_dead() __noreturn 2023-03-08 08:44:28 -08:00
ima_arch.c
ipl_vmparm.c s390/cio: remove unused include linux/spinlock.h from cio.h 2021-07-27 09:39:13 +02:00
ipl.c s390/ipl: refactor deprecated strncpy 2023-08-18 15:08:12 +02:00
irq.c s390/irq,idle: simplify idle check 2023-02-15 11:07:01 +01:00
jump_label.c jump_label: make initial NOP patching the special case 2022-06-24 09:48:55 +02:00
kdebugfs.c
kexec_elf.c
kexec_image.c
kprobes_insn_page.S s390: consistently use .balign instead of .align 2023-06-28 13:57:09 +02:00
kprobes.c s390/mm: use set_memory_*() helpers instead of open coding 2023-04-13 17:36:26 +02:00
kprobes.h s390/kprobes: define insn cache ops within private header file 2022-11-23 16:24:07 +01:00
lgr.c s390/lgr: use simple assignment instead of memcpy 2022-02-06 23:31:29 +01:00
machine_kexec_file.c s390/ipl: fix virtual vs physical address confusion 2023-08-18 15:08:12 +02:00
machine_kexec_reloc.c s390/kaslr: add support for R_390_JMP_SLOT relocation type 2020-05-20 10:13:27 +02:00
machine_kexec.c s390/amode31: change type of __samode31, __eamode31, etc 2023-08-30 11:03:27 +02:00
Makefile s390/kexec: make machine_kexec() depend on CONFIG_KEXEC_CORE 2023-07-24 12:12:23 +02:00
mcount.S s390: remove unneeded #include <asm/export.h> 2023-08-09 15:20:50 +02:00
module.c s390/module: fix rela calculation for R_390_GOTENT 2023-06-20 19:55:00 +02:00
nmi.c s390/mcck: cleanup user process termination path 2023-02-28 13:19:05 +01:00
nospec-branch.c s390: fix various typos 2023-07-03 11:19:42 +02:00
nospec-sysfs.c s390: introduce nospec_uses_trampoline() 2021-10-26 15:21:29 +02:00
numa.c drivers/base/node: consolidate node device subsystem initialization in node_dev_init() 2022-03-22 15:57:10 -07:00
os_info.c s390/mm: allocate Absolute Lowcore Area in decompressor 2023-01-13 14:15:06 +01:00
perf_cpum_cf_events.c s390/cpumf: add new extended counter set for IBM z16 2022-05-16 10:58:33 +02:00
perf_cpum_cf.c s390/cpum_cf: remove unneeded debug statements 2023-07-04 07:45:17 +02:00
perf_cpum_sf.c s390/cpum_sf: remove check on CPU being online 2023-07-04 07:45:18 +02:00
perf_event.c s390/stack: add union to reflect kvm stack slot usages 2022-06-01 12:03:17 +02:00
perf_pai_crypto.c s390/pai_crypto: replace atomic_t with refcount_t 2023-05-15 14:12:14 +02:00
perf_pai_ext.c s390: fix various typos 2023-07-03 11:19:42 +02:00
perf_regs.c perf/arch: Remove perf_sample_data::regs_user_copy 2020-11-09 18:12:34 +01:00
process.c s390: include linux/io.h instead of asm/io.h 2023-07-03 11:19:40 +02:00
processor.c s390/bp: remove s390_isolate_bp_guest() 2023-03-13 09:16:42 +01:00
ptrace.c s390/ptrace: fix PTRACE_GET_LAST_BREAK error handling 2023-03-27 17:23:08 +02:00
reipl.S s390/reipl: use SYM* macros instead of ENTRY(), etc. 2023-04-19 17:24:17 +02:00
relocate_kernel.S s390/relocate_kernel: adjust indentation 2023-04-19 17:24:18 +02:00
rethook.c s390/rethook: add local rethook header file 2023-02-06 11:13:53 +01:00
rethook.h s390/rethook: add local rethook header file 2023-02-06 11:13:53 +01:00
runtime_instr.c s390/runtime_instrumentation: fix storage key handling 2020-08-17 13:17:10 +02:00
setup.c s390/amode31: change type of __samode31, __eamode31, etc 2023-08-30 11:03:27 +02:00
signal.c s390/vx: use simple assignments to access __vector128 members 2023-02-09 20:11:23 +01:00
smp.c s390/smp: ensure global control register contents are in sync 2023-08-09 15:20:50 +02:00
stacktrace.c s390/kprobes: replace kretprobe with rethook 2023-01-22 18:42:35 +01:00
sthyi.c s390 updates for 6.6 merge window 2023-08-28 17:22:39 -07:00
syscall.c s390: add support for BEAR enhancement facility 2021-10-26 15:21:29 +02:00
sysinfo.c s390/extable: move EX_TABLE define to asm-extable.h 2022-03-08 00:33:00 +01:00
text_amode31.S s390/amode31: use SYM* macros instead of ENTRY(), etc. 2023-04-19 17:24:16 +02:00
time.c s390: fix various typos 2023-07-03 11:19:42 +02:00
topology.c s390/topology: honour nr_cpu_ids when adding CPUs 2023-05-15 14:20:14 +02:00
trace.c
traps.c s390/traps: improve panic message for translation-specification exception 2022-03-27 22:18:38 +02:00
unwind_bc.c s390/unwind: avoid duplicated unwinding entries for kretprobes 2022-03-27 22:18:39 +02:00
uprobes.c s390: raise minimum supported machine generation to z10 2022-03-10 15:58:17 +01:00
uv.c s390/uv: UV feature check utility 2023-08-28 09:27:55 +00:00
vdso.c mm: remove zap_page_range and create zap_vma_pages 2023-01-18 17:12:55 -08:00
vmlinux.lds.S s390: make extables read-only 2023-04-04 18:34:55 +02:00
vtime.c cputime: remove cputime_to_nsecs fallback 2022-12-27 12:52:17 +01:00