[openssh-commits] [openssh] branch V_10_4 updated: allow madvise(..., MADV_DONTNEED_LOCKED)

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Sat Sep 19 01:54:53 AEST 2026


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dtucker pushed a commit to branch V_10_4
in repository openssh.

The following commit(s) were added to refs/heads/V_10_4 by this push:
     new b909941ca allow madvise(..., MADV_DONTNEED_LOCKED)
b909941ca is described below

commit b909941ca6409406f1a60862c0eeffea1ce2e2cf
Author: Damien Miller <djm at mindrot.org>
AuthorDate: Tue Sep 15 15:37:02 2026 +1000

    allow madvise(..., MADV_DONTNEED_LOCKED)
    
    allow MADV_DONTNEED_LOCKED in the seccomp sandbox; needed by GrapheneOS'
    hardened allocator. bz4001
---
 sandbox-seccomp-filter.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sandbox-seccomp-filter.c b/sandbox-seccomp-filter.c
index bf753eef2..b49d0286e 100644
--- a/sandbox-seccomp-filter.c
+++ b/sandbox-seccomp-filter.c
@@ -346,6 +346,9 @@ static const struct sock_filter preauth_insns[] = {
 # ifdef MADV_DONTNEED
 	SC_ALLOW_ARG(__NR_madvise, 2, MADV_DONTNEED),
 # endif
+# ifdef MADV_DONTNEED_LOCKED
+	SC_ALLOW_ARG(__NR_madvise, 2, MADV_DONTNEED_LOCKED),
+# endif
 # ifdef MADV_DONTFORK
 	SC_ALLOW_ARG(__NR_madvise, 2, MADV_DONTFORK),
 # endif

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