[pulseaudio-commits] [Git][pulseaudio/pulseaudio][master] shm: allow for older versions of Linux without MFD_NOEXEC_SEAL

[PulseAudio Marge Bot (@pulseaudio-merge-bot)]

PulseAudio Marge Bot pushed to branch master at PulseAudio / pulseaudio


Commits:
421cf154 by Rudi Heitbaum at 2023-08-13T09:37:32+00:00
shm: allow for older versions of Linux without MFD_NOEXEC_SEAL

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/794>

- - - - -


1 changed file:

- src/pulsecore/shm.c


Changes:

=====================================
src/pulsecore/shm.c
=====================================
@@ -164,7 +164,11 @@ static int sharedmem_create(pa_shm *m, pa_mem_type_t type, size_t size, mode_t m
 #endif
 #ifdef HAVE_MEMFD
     case PA_MEM_TYPE_SHARED_MEMFD:
+        /* For linux >= 6.3 create fd with MFD_NOEXEC_SEAL flag */
         fd = memfd_create("pulseaudio", MFD_ALLOW_SEALING|MFD_CLOEXEC|MFD_NOEXEC_SEAL);
+        /* Retry creating fd without MFD_NOEXEC_SEAL to support linux < 6.3 */
+        if (fd < 0)
+            fd = memfd_create("pulseaudio", MFD_ALLOW_SEALING|MFD_CLOEXEC);
         break;
 #endif
     default:



View it on GitLab: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/commit/421cf15486eea1b52f10e2b0be305018fee8c285

-- 
View it on GitLab: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/commit/421cf15486eea1b52f10e2b0be305018fee8c285
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