26 lines
1.1 KiB
Diff
26 lines
1.1 KiB
Diff
With older systemd-nspawn the faccessat2 syscall was denied but
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instead of returning ENOSYS it returned EPERM. This has since
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been corrected in upstream systemd-nsapwn, but with older builders
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that may have older nspawn the Fedora Rawhide glibc should fall
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back to faccessat when it sees ENOSYS *or* EPERM. This is a
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Fedora Rawhide-only patch that should be removed before the next
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release.
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diff --git a/sysdeps/unix/sysv/linux/faccessat.c b/sysdeps/unix/sysv/linux/faccessat.c
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index 56cb6dcc8b4d58d3..5de75032bbc93a2c 100644
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--- a/sysdeps/unix/sysv/linux/faccessat.c
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+++ b/sysdeps/unix/sysv/linux/faccessat.c
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@@ -34,7 +34,11 @@ faccessat (int fd, const char *file, int mode, int flag)
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#if __ASSUME_FACCESSAT2
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return ret;
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#else
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- if (ret == 0 || errno != ENOSYS)
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+ /* Fedora-specific workaround:
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+ As a workround for a broken systemd-nspawn that returns
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+ EPERM when a syscall is not allowed instead of ENOSYS
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+ we must check for EPERM here and fall back to faccessat. */
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+ if (ret == 0 || !(errno == ENOSYS || errno == EPERM))
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return ret;
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if (flag & ~(AT_SYMLINK_NOFOLLOW | AT_EACCESS))
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