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| author | Daniel Eklöf <daniel@ekloef.se> | 2023-10-13 16:37:56 +0200 |
|---|---|---|
| committer | Daniel Eklöf <daniel@ekloef.se> | 2023-10-13 16:37:56 +0200 |
| commit | 61af8e87661b93cfefe77c083328fef962c4121d (patch) | |
| tree | a2792eaf6c16d01b7b4759045f42fb103eaa9f1c /webp.c | |
| parent | 670d577ad0cd45a0c7bf4a264b791a2cd86557c3 (diff) | |
| download | wbg-61af8e87661b93cfefe77c083328fef962c4121d.tar.gz | |
shm: try with MFD_NOEXEC_SEAL first, then without
MFD_NOEXEC_SEAL is only supported on kernels 6.3 and later.
If we were compiled on linux >= 6.3, but run on linux < 6.3, we'd exit
with an error, due to memfd_create() failing with EINVAL.
This patch fixes the problem by first trying to call
memfd_create() *with* MFD_NOEXEC_SEAL, and if that fails with EINVAL,
we try again without it.
Also seal the memory FD once mmap() has been called.
Diffstat (limited to 'webp.c')
0 files changed, 0 insertions, 0 deletions