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Ensure fds are closed when exec functions are used.

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When usng shm_open, FD_CLOEXEC is set explicitly.

However when using memfd_create, we must pass the MFD_CLOEXEC flag
to ensure the same fcntl value (FD_CLOEXEC) is set.

Fixes #1394

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/751>
This commit is contained in:
Alistair Leslie-Hughes 2022-11-03 09:22:48 +11:00 • committed by PulseAudio Marge Bot
parent 3349e1c471
commit e650c2b33e
1 changed files with 1 additions and 1 deletions
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src/pulsecore/shm.c
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@ -164,7 +164,7 @@ static int sharedmem_create(pa_shm *m, pa_mem_type_t type, size_t size, mode_t m
#endif #endif
#ifdef HAVE_MEMFD #ifdef HAVE_MEMFD
case PA_MEM_TYPE_SHARED_MEMFD: case PA_MEM_TYPE_SHARED_MEMFD:
fd = memfd_create("pulseaudio", MFD_ALLOW_SEALING); fd = memfd_create("pulseaudio", MFD_ALLOW_SEALING|MFD_CLOEXEC);
break; break;
#endif #endif
default: default: