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gerrit.openbmc.org / openbmc / openbmc / 517393d903089f921915530ffa689a7a1d113420 / . / poky / meta / recipes-core / glibc / glibc / 0001-Linux-Add-ppoll-fortify-symbol-for-64-bit-time_t-BZ-.patch
blob: 678dc2af2c5efcb15cb9a21b327b3808ef4a9b0c [file] [log] [blame]
Andrew Geissler517393d2023-01-13 08:55:19 -0600[diff] [blame^]1From 69318192d16adc7d57adcd69fbbb1e3e107b2783 Mon Sep 17 00:00:00 2001
2From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
3Date: Fri, 4 Nov 2022 16:02:52 -0300
4Subject: [PATCH] Linux: Add ppoll fortify symbol for 64 bit time_t (BZ# 29746)
5
6Similar to ppoll, the poll.h header needs to redirect the poll call
7to a proper fortified ppoll with 64 bit time_t support.
8
9The implementation is straightforward, just need to add a similar
10check as __poll_chk and call the 64 bit time_t ppoll version. The
11debug fortify tests are also extended to cover 64 bit time_t for
12affected ABIs.
13
14Unfortunately it requires an aditional symbol, which makes backport
15tricky. One possibility is to add a static inline version if compiler
16supports is and call abort instead of __chk_fail, so fortified version
17will call __poll64 in the end.
18
19Another possibility is to just remove the fortify support for
20_TIME_BITS=64.
21
22Checked on i686-linux-gnu.
23
24Upstream-Status: Backport
25
26Signed-off-by: Ola Nilsson <olani@axis.com>
27---
28 debug/Makefile | 41 ++++++++++++------
29 include/sys/poll.h | 5 ++-
30 io/bits/poll2.h | 25 +++++++++++
31 sysdeps/unix/sysv/linux/Versions | 5 +++
32 sysdeps/unix/sysv/linux/arm/be/libc.abilist | 1 +
33 sysdeps/unix/sysv/linux/arm/le/libc.abilist | 1 +
34 sysdeps/unix/sysv/linux/csky/libc.abilist | 1 +
35 sysdeps/unix/sysv/linux/hppa/libc.abilist | 1 +
36 sysdeps/unix/sysv/linux/i386/libc.abilist | 1 +
37 .../sysv/linux/m68k/coldfire/libc.abilist | 1 +
38 .../unix/sysv/linux/m68k/m680x0/libc.abilist | 1 +
39 .../sysv/linux/microblaze/be/libc.abilist | 1 +
40 .../sysv/linux/microblaze/le/libc.abilist | 1 +
41 .../sysv/linux/mips/mips32/fpu/libc.abilist | 1 +
42 .../sysv/linux/mips/mips32/nofpu/libc.abilist | 1 +
43 .../sysv/linux/mips/mips64/n32/libc.abilist | 1 +
44 sysdeps/unix/sysv/linux/nios2/libc.abilist | 1 +
45 .../linux/powerpc/powerpc32/fpu/libc.abilist | 1 +
46 .../powerpc/powerpc32/nofpu/libc.abilist | 1 +
47 sysdeps/unix/sysv/linux/ppoll.c | 3 +-
48 sysdeps/unix/sysv/linux/ppoll_chk.c | 42 +++++++++++++++++++
49 .../unix/sysv/linux/s390/s390-32/libc.abilist | 1 +
50 sysdeps/unix/sysv/linux/sh/be/libc.abilist | 1 +
51 sysdeps/unix/sysv/linux/sh/le/libc.abilist | 1 +
52 .../sysv/linux/sparc/sparc32/libc.abilist | 1 +
53 25 files changed, 125 insertions(+), 15 deletions(-)
54 create mode 100644 sysdeps/unix/sysv/linux/ppoll_chk.c
55
56diff --git a/debug/Makefile b/debug/Makefile
57index 456b349c4d..075a135a2b 100644
58--- a/debug/Makefile
59+++ b/debug/Makefile
60@@ -120,8 +120,10 @@ CPPFLAGS-tst-read-chk-cancel.c += -D_FORTIFY_SOURCE=2
61 # CFLAGS for the file.
62
63 tests-all-chk = tst-fortify
64-tests-c-chk =
65-tests-cc-chk =
66+tests-c-def-chk =
67+tests-cc-def-chk =
68+tests-c-time64-chk =
69+tests-cc-time64-chk =
70
71 CFLAGS-tst-fortify.c += -Wno-format -Wno-deprecated-declarations -Wno-error
72
73@@ -130,11 +132,11 @@ define cflags-default
74 endef
75
76 define cflags-lfs
77-CFLAGS-tst-fortify-$(1)-lfs-$(2).$(1) += -D_FILE_OFFSET_BITS=64
78+CFLAGS-tst-fortify-$(1)-lfs-$(2)-$(3).$(1) += -D_FILE_OFFSET_BITS=64
79 endef
80
81 define cflags-nongnu
82-CFLAGS-tst-fortify-$(1)-nongnu-$(2).$(1) += -D_LARGEFILE64_SOURCE=1
83+CFLAGS-tst-fortify-$(1)-nongnu-$(2)-$(3).$(1) += -D_LARGEFILE64_SOURCE=1
84 endef
85
86 src-chk-nongnu = \#undef _GNU_SOURCE
87@@ -145,12 +147,12 @@ src-chk-nongnu = \#undef _GNU_SOURCE
88 # And they also generate warnings from warning attributes, which
89 # cannot be disabled via pragmas, so require -Wno-error to be used.
90 define gen-chk-test
91-tests-$(1)-chk += tst-fortify-$(1)-$(2)-$(3)
92-CFLAGS-tst-fortify-$(1)-$(2)-$(3).$(1) += -D_FORTIFY_SOURCE=$(3) -Wno-format \
93+tests-$(1)-$(4)-chk += tst-fortify-$(1)-$(2)-$(3)-$(4)
94+CFLAGS-tst-fortify-$(1)-$(2)-$(3)-$(4).$(1) += -D_FORTIFY_SOURCE=$(3) -Wno-format \
95 -Wno-deprecated-declarations \
96 -Wno-error
97-$(eval $(call cflags-$(2),$(1),$(3)))
98-$(objpfx)tst-fortify-$(1)-$(2)-$(3).$(1): tst-fortify.c Makefile
99+$(eval $(call cflags-$(2),$(1),$(3),$(4)))
100+$(objpfx)tst-fortify-$(1)-$(2)-$(3)-$(4).$(1): tst-fortify.c Makefile
101 ( echo "/* Autogenerated from Makefile. */"; \
102 echo "$(src-chk-$(2))"; \
103 echo "#include \"tst-fortify.c\"" ) > $$@.tmp
104@@ -159,19 +161,29 @@ endef
105
106 chk-extensions = c cc
107 chk-types = default lfs nongnu
108+# 64 bit time_t implies LFS.
109+chk-types-time64 = default nongnu
110 chk-levels = 1 2 3
111
112 $(foreach e,$(chk-extensions), \
113 $(foreach t,$(chk-types), \
114 $(foreach l,$(chk-levels), \
115- $(eval $(call gen-chk-test,$(e),$(t),$(l))))))
116+ $(eval $(call gen-chk-test,$(e),$(t),$(l),def)))))
117
118-tests-all-chk += $(tests-c-chk) $(tests-cc-chk)
119+tests-all-chk += $(tests-c-def-chk) $(tests-cc-def-chk)
120+
121+$(foreach e,$(chk-extensions), \
122+ $(foreach t,$(chk-types-time64), \
123+ $(foreach l,$(chk-levels), \
124+ $(eval $(call gen-chk-test,$(e),$(t),$(l),time64)))))
125+
126+tests-all-time64-chk += $(tests-c-time64-chk) $(tests-cc-time64-chk)
127
128 define link-cc
129 LDLIBS-$(1) = -lstdc++
130 endef
131-$(foreach t,$(tests-cc-chk), $(eval $(call link-cc,$(t))))
132+$(foreach t,$(tests-cc-def-chk), $(eval $(call link-cc,$(t))))
133+$(foreach t,$(tests-cc-time64-chk), $(eval $(call link-cc,$(t))))
134
135 # backtrace_symbols only works if we link with -rdynamic. backtrace
136 # requires unwind tables on most architectures.
137@@ -201,6 +213,10 @@ tests = backtrace-tst \
138 tst-realpath-chk \
139 $(tests-all-chk)
140
141+tests-time64 += \
142+ $(tests-all-time64-chk) \
143+ # tests-time64
144+
145 ifeq ($(have-ssp),yes)
146 tests += tst-ssp-1
147 endif
148@@ -210,7 +226,7 @@ tests += tst-read-chk-cancel
149 endif
150
151 ifeq (,$(CXX))
152-tests-unsupported = $(tests-cc-chk)
153+tests-unsupported = $(tests-cc-def-chk) $(test-cc-time64-chk)
154 endif
155
156 extra-libs = libpcprofile
157@@ -235,6 +251,7 @@ define chk-gen-locales
158 $(objpfx)$(1).out: $(gen-locales)
159 endef
160 $(foreach t, $(tests-all-chk), $(eval $(call chk-gen-locales,$(t))))
161+$(foreach t, $(tests-all-time64-chk), $(eval $(call chk-gen-locales,$(t))))
162 endif
163
164 sLIBdir := $(shell echo $(slibdir) | sed 's,lib\(\|64\)$$,\\\\$$LIB,')
165diff --git a/include/sys/poll.h b/include/sys/poll.h
166index f904e21f89..228704fe79 100644
167--- a/include/sys/poll.h
168+++ b/include/sys/poll.h
169@@ -2,13 +2,16 @@
170 # include <io/sys/poll.h>
171
172 #ifndef _ISOMAC
173+#include <include/struct___timespec64.h>
174+
175 extern int __poll (struct pollfd *__fds, unsigned long int __nfds,
176 int __timeout);
177 libc_hidden_proto (__poll)
178 libc_hidden_proto (ppoll)
179
180 # if __TIMESIZE == 64
181-# define __ppoll64 __ppoll
182+# define __ppoll64 ppoll
183+# define __ppoll64_chk __ppoll_chk
184 # else
185 # include <time.h>
186 # include <signal.h>
187diff --git a/io/bits/poll2.h b/io/bits/poll2.h
188index 3679d8451a..90f5574969 100644
189--- a/io/bits/poll2.h
190+++ b/io/bits/poll2.h
191@@ -43,6 +43,30 @@ poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
192
193
194 #ifdef __USE_GNU
195+# ifdef __USE_TIME_BITS64
196+extern int __REDIRECT (__ppoll64_alias, (struct pollfd *__fds, nfds_t __nfds,
197+ const struct timespec *__timeout,
198+ const __sigset_t *__ss), __ppoll64);
199+extern int __ppoll64_chk (struct pollfd *__fds, nfds_t __nfds,
200+ const struct timespec *__timeout,
201+ const __sigset_t *__ss, __SIZE_TYPE__ __fdslen)
202+ __attr_access ((__write_only__, 1, 2));
203+extern int __REDIRECT (__ppoll64_chk_warn, (struct pollfd *__fds, nfds_t __n,
204+ const struct timespec *__timeout,
205+ const __sigset_t *__ss,
206+ __SIZE_TYPE__ __fdslen),
207+ __ppoll64_chk)
208+ __warnattr ("ppoll called with fds buffer too small file nfds entries");
209+
210+__fortify_function __fortified_attr_access (__write_only__, 1, 2) int
211+ppoll (struct pollfd *__fds, nfds_t __nfds, const struct timespec *__timeout,
212+ const __sigset_t *__ss)
213+{
214+ return __glibc_fortify (ppoll64, __nfds, sizeof (*__fds),
215+ __glibc_objsize (__fds),
216+ __fds, __nfds, __timeout, __ss);
217+}
218+# else
219 extern int __REDIRECT (__ppoll_alias, (struct pollfd *__fds, nfds_t __nfds,
220 const struct timespec *__timeout,
221 const __sigset_t *__ss), ppoll);
222@@ -65,6 +89,7 @@ ppoll (struct pollfd *__fds, nfds_t __nfds, const struct timespec *__timeout,
223 __glibc_objsize (__fds),
224 __fds, __nfds, __timeout, __ss);
225 }
226+# endif
227 #endif
228
229 __END_DECLS
230diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions
231index 65d2ceda2c..ca6eb1a49e 100644
232--- a/sysdeps/unix/sysv/linux/Versions
233+++ b/sysdeps/unix/sysv/linux/Versions
234@@ -313,6 +313,11 @@ libc {
235 process_madvise;
236 process_mrelease;
237 }
238+ GLIBC_2.37 {
239+%ifdef TIME64_NON_DEFAULT
240+ __ppoll64_chk;
241+%endif
242+ }
243 GLIBC_PRIVATE {
244 # functions used in other libraries
245 __syscall_rt_sigqueueinfo;
246diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
247index e0668a80cf..f28402fe03 100644
248--- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist
249+++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
250@@ -513,6 +513,7 @@ GLIBC_2.36 pidfd_open F
251 GLIBC_2.36 pidfd_send_signal F
252 GLIBC_2.36 process_madvise F
253 GLIBC_2.36 process_mrelease F
254+GLIBC_2.37 __ppoll64_chk F
255 GLIBC_2.4 _Exit F
256 GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
257 GLIBC_2.4 _IO_2_1_stdin_ D 0xa0
258diff --git a/sysdeps/unix/sysv/linux/arm/le/libc.abilist b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
259index d28e7c60b7..e2f56880ed 100644
260--- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist
261+++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
262@@ -510,6 +510,7 @@ GLIBC_2.36 pidfd_open F
263 GLIBC_2.36 pidfd_send_signal F
264 GLIBC_2.36 process_madvise F
265 GLIBC_2.36 process_mrelease F
266+GLIBC_2.37 __ppoll64_chk F
267 GLIBC_2.4 _Exit F
268 GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
269 GLIBC_2.4 _IO_2_1_stdin_ D 0xa0
270diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist
271index 922b05062f..319d92356e 100644
272--- a/sysdeps/unix/sysv/linux/csky/libc.abilist
273+++ b/sysdeps/unix/sysv/linux/csky/libc.abilist
274@@ -2669,3 +2669,4 @@ GLIBC_2.36 pidfd_open F
275 GLIBC_2.36 pidfd_send_signal F
276 GLIBC_2.36 process_madvise F
277 GLIBC_2.36 process_mrelease F
278+GLIBC_2.37 __ppoll64_chk F
279diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist
280index 412144f94c..6450e17ebe 100644
281--- a/sysdeps/unix/sysv/linux/hppa/libc.abilist
282+++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist
283@@ -2618,6 +2618,7 @@ GLIBC_2.36 pidfd_open F
284 GLIBC_2.36 pidfd_send_signal F
285 GLIBC_2.36 process_madvise F
286 GLIBC_2.36 process_mrelease F
287+GLIBC_2.37 __ppoll64_chk F
288 GLIBC_2.4 __confstr_chk F
289 GLIBC_2.4 __fgets_chk F
290 GLIBC_2.4 __fgets_unlocked_chk F
291diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist
292index 134393900a..0a24ec9afd 100644
293--- a/sysdeps/unix/sysv/linux/i386/libc.abilist
294+++ b/sysdeps/unix/sysv/linux/i386/libc.abilist
295@@ -2802,6 +2802,7 @@ GLIBC_2.36 pidfd_open F
296 GLIBC_2.36 pidfd_send_signal F
297 GLIBC_2.36 process_madvise F
298 GLIBC_2.36 process_mrelease F
299+GLIBC_2.37 __ppoll64_chk F
300 GLIBC_2.4 __confstr_chk F
301 GLIBC_2.4 __fgets_chk F
302 GLIBC_2.4 __fgets_unlocked_chk F
303diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
304index 0604029c68..16243a7a92 100644
305--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
306+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
307@@ -514,6 +514,7 @@ GLIBC_2.36 pidfd_open F
308 GLIBC_2.36 pidfd_send_signal F
309 GLIBC_2.36 process_madvise F
310 GLIBC_2.36 process_mrelease F
311+GLIBC_2.37 __ppoll64_chk F
312 GLIBC_2.4 _Exit F
313 GLIBC_2.4 _IO_2_1_stderr_ D 0x98
314 GLIBC_2.4 _IO_2_1_stdin_ D 0x98
315diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
316index af2be5c80d..564a553b27 100644
317--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
318+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
319@@ -2745,6 +2745,7 @@ GLIBC_2.36 pidfd_open F
320 GLIBC_2.36 pidfd_send_signal F
321 GLIBC_2.36 process_madvise F
322 GLIBC_2.36 process_mrelease F
323+GLIBC_2.37 __ppoll64_chk F
324 GLIBC_2.4 __confstr_chk F
325 GLIBC_2.4 __fgets_chk F
326 GLIBC_2.4 __fgets_unlocked_chk F
327diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
328index e090b8d48f..e850f47b21 100644
329--- a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
330+++ b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
331@@ -2718,3 +2718,4 @@ GLIBC_2.36 pidfd_open F
332 GLIBC_2.36 pidfd_send_signal F
333 GLIBC_2.36 process_madvise F
334 GLIBC_2.36 process_mrelease F
335+GLIBC_2.37 __ppoll64_chk F
336diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
337index 8c5b2db243..37178c503f 100644
338--- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
339+++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
340@@ -2715,3 +2715,4 @@ GLIBC_2.36 pidfd_open F
341 GLIBC_2.36 pidfd_send_signal F
342 GLIBC_2.36 process_madvise F
343 GLIBC_2.36 process_mrelease F
344+GLIBC_2.37 __ppoll64_chk F
345diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
346index 68847134a2..3b30b31466 100644
347--- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
348+++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
349@@ -2710,6 +2710,7 @@ GLIBC_2.36 pidfd_open F
350 GLIBC_2.36 pidfd_send_signal F
351 GLIBC_2.36 process_madvise F
352 GLIBC_2.36 process_mrelease F
353+GLIBC_2.37 __ppoll64_chk F
354 GLIBC_2.4 __confstr_chk F
355 GLIBC_2.4 __fgets_chk F
356 GLIBC_2.4 __fgets_unlocked_chk F
357diff --git a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
358index daa44e64fa..0e358570a2 100644
359--- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
360+++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
361@@ -2708,6 +2708,7 @@ GLIBC_2.36 pidfd_open F
362 GLIBC_2.36 pidfd_send_signal F
363 GLIBC_2.36 process_madvise F
364 GLIBC_2.36 process_mrelease F
365+GLIBC_2.37 __ppoll64_chk F
366 GLIBC_2.4 __confstr_chk F
367 GLIBC_2.4 __fgets_chk F
368 GLIBC_2.4 __fgets_unlocked_chk F
369diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
370index 6169188c96..59c598b98f 100644
371--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
372+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
373@@ -2716,6 +2716,7 @@ GLIBC_2.36 pidfd_open F
374 GLIBC_2.36 pidfd_send_signal F
375 GLIBC_2.36 process_madvise F
376 GLIBC_2.36 process_mrelease F
377+GLIBC_2.37 __ppoll64_chk F
378 GLIBC_2.4 __confstr_chk F
379 GLIBC_2.4 __fgets_chk F
380 GLIBC_2.4 __fgets_unlocked_chk F
381diff --git a/sysdeps/unix/sysv/linux/nios2/libc.abilist b/sysdeps/unix/sysv/linux/nios2/libc.abilist
382index 58e9b486b0..463e01ab84 100644
383--- a/sysdeps/unix/sysv/linux/nios2/libc.abilist
384+++ b/sysdeps/unix/sysv/linux/nios2/libc.abilist
385@@ -2757,3 +2757,4 @@ GLIBC_2.36 pidfd_open F
386 GLIBC_2.36 pidfd_send_signal F
387 GLIBC_2.36 process_madvise F
388 GLIBC_2.36 process_mrelease F
389+GLIBC_2.37 __ppoll64_chk F
390diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
391index 8c9ca32cbe..405d40d11c 100644
392--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
393+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
394@@ -2772,6 +2772,7 @@ GLIBC_2.36 pidfd_open F
395 GLIBC_2.36 pidfd_send_signal F
396 GLIBC_2.36 process_madvise F
397 GLIBC_2.36 process_mrelease F
398+GLIBC_2.37 __ppoll64_chk F
399 GLIBC_2.4 _IO_fprintf F
400 GLIBC_2.4 _IO_printf F
401 GLIBC_2.4 _IO_sprintf F
402diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
403index 08a6604aab..ce89602b93 100644
404--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
405+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
406@@ -2805,6 +2805,7 @@ GLIBC_2.36 pidfd_open F
407 GLIBC_2.36 pidfd_send_signal F
408 GLIBC_2.36 process_madvise F
409 GLIBC_2.36 process_mrelease F
410+GLIBC_2.37 __ppoll64_chk F
411 GLIBC_2.4 _IO_fprintf F
412 GLIBC_2.4 _IO_printf F
413 GLIBC_2.4 _IO_sprintf F
414diff --git a/sysdeps/unix/sysv/linux/ppoll.c b/sysdeps/unix/sysv/linux/ppoll.c
415index 1105e29b00..2e173b931d 100644
416--- a/sysdeps/unix/sysv/linux/ppoll.c
417+++ b/sysdeps/unix/sysv/linux/ppoll.c
418@@ -67,7 +67,7 @@ __ppoll64 (struct pollfd *fds, nfds_t nfds, const struct __timespec64 *timeout,
419 libc_hidden_def (__ppoll64)
420
421 int
422-__ppoll (struct pollfd *fds, nfds_t nfds, const struct timespec *timeout,
423+ppoll (struct pollfd *fds, nfds_t nfds, const struct timespec *timeout,
424 const sigset_t *sigmask)
425 {
426 struct __timespec64 ts64;
427@@ -77,5 +77,4 @@ __ppoll (struct pollfd *fds, nfds_t nfds, const struct timespec *timeout,
428 return __ppoll64 (fds, nfds, timeout ? &ts64 : NULL, sigmask);
429 }
430 #endif
431-strong_alias (__ppoll, ppoll)
432 libc_hidden_def (ppoll)
433diff --git a/sysdeps/unix/sysv/linux/ppoll_chk.c b/sysdeps/unix/sysv/linux/ppoll_chk.c
434new file mode 100644
435index 0000000000..65c4b56671
436--- /dev/null
437+++ b/sysdeps/unix/sysv/linux/ppoll_chk.c
438@@ -0,0 +1,42 @@
439+/* Fortify ppoll implementation. Linux version.
440+ Copyright (C) 2022 Free Software Foundation, Inc.
441+ This file is part of the GNU C Library.
442+
443+ The GNU C Library is free software; you can redistribute it and/or
444+ modify it under the terms of the GNU Lesser General Public
445+ License as published by the Free Software Foundation; either
446+ version 2.1 of the License, or (at your option) any later version.
447+
448+ The GNU C Library is distributed in the hope that it will be useful,
449+ but WITHOUT ANY WARRANTY; without even the implied warranty of
450+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
451+ Lesser General Public License for more details.
452+
453+ You should have received a copy of the GNU Lesser General Public
454+ License along with the GNU C Library; if not, see
455+ <https://www.gnu.org/licenses/>. */
456+
457+#include <poll.h>
458+
459+int
460+__ppoll64_chk (struct pollfd *fds, nfds_t nfds,
461+ const struct __timespec64 *tmo, const __sigset_t *ss,
462+ __SIZE_TYPE__ fdslen)
463+{
464+ if (fdslen / sizeof (*fds) < nfds)
465+ __chk_fail ();
466+
467+ return __ppoll64 (fds, nfds, tmo, ss);
468+}
469+
470+#if __TIMESIZE != 64
471+int
472+__ppoll_chk (struct pollfd *fds, nfds_t nfds, const struct timespec *tmo,
473+ const __sigset_t *ss, __SIZE_TYPE__ fdslen)
474+{
475+ if (fdslen / sizeof (*fds) < nfds)
476+ __chk_fail ();
477+
478+ return ppoll (fds, nfds, tmo, ss);
479+}
480+#endif
481diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
482index 009f22931e..5ca051a9eb 100644
483--- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
484+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
485@@ -2770,6 +2770,7 @@ GLIBC_2.36 pidfd_open F
486 GLIBC_2.36 pidfd_send_signal F
487 GLIBC_2.36 process_madvise F
488 GLIBC_2.36 process_mrelease F
489+GLIBC_2.37 __ppoll64_chk F
490 GLIBC_2.4 _IO_fprintf F
491 GLIBC_2.4 _IO_printf F
492 GLIBC_2.4 _IO_sprintf F
493diff --git a/sysdeps/unix/sysv/linux/sh/be/libc.abilist b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
494index afb5bc37b1..5b48168ec6 100644
495--- a/sysdeps/unix/sysv/linux/sh/be/libc.abilist
496+++ b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
497@@ -2625,6 +2625,7 @@ GLIBC_2.36 pidfd_open F
498 GLIBC_2.36 pidfd_send_signal F
499 GLIBC_2.36 process_madvise F
500 GLIBC_2.36 process_mrelease F
501+GLIBC_2.37 __ppoll64_chk F
502 GLIBC_2.4 __confstr_chk F
503 GLIBC_2.4 __fgets_chk F
504 GLIBC_2.4 __fgets_unlocked_chk F
505diff --git a/sysdeps/unix/sysv/linux/sh/le/libc.abilist b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
506index 2b53a3cf92..c42b39cea8 100644
507--- a/sysdeps/unix/sysv/linux/sh/le/libc.abilist
508+++ b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
509@@ -2622,6 +2622,7 @@ GLIBC_2.36 pidfd_open F
510 GLIBC_2.36 pidfd_send_signal F
511 GLIBC_2.36 process_madvise F
512 GLIBC_2.36 process_mrelease F
513+GLIBC_2.37 __ppoll64_chk F
514 GLIBC_2.4 __confstr_chk F
515 GLIBC_2.4 __fgets_chk F
516 GLIBC_2.4 __fgets_unlocked_chk F
517diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
518index 43b9844a99..5a0a662dee 100644
519--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
520+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
521@@ -2765,6 +2765,7 @@ GLIBC_2.36 pidfd_open F
522 GLIBC_2.36 pidfd_send_signal F
523 GLIBC_2.36 process_madvise F
524 GLIBC_2.36 process_mrelease F
525+GLIBC_2.37 __ppoll64_chk F
526 GLIBC_2.4 _IO_fprintf F
527 GLIBC_2.4 _IO_printf F
528 GLIBC_2.4 _IO_sprintf F