71 lines
2.7 KiB
Diff
71 lines
2.7 KiB
Diff
From 72016e3fce8fcbeab707daf4f1a02b931fcc004d Mon Sep 17 00:00:00 2001
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From: Alexander Larsson <alexl@redhat.com>
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Date: Mon, 15 Apr 2024 16:10:36 +0200
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Subject: [PATCH] When starting non-static command using bwrap use "--"
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Origin: https://github.com/flatpak/flatpak/commit/72016e3fce8fcbeab707daf4f1a02b931fcc004d
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This ensures that the command is not taken to be a bwrap option.
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Resolves: CVE-2024-32462
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Resolves: GHSA-phv6-cpc2-2fgj
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Signed-off-by: Alexander Larsson <alexl@redhat.com>
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[smcv: Fix DISABLE_SANDBOXED_TRIGGERS code path]
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[smcv: Make flatpak_run_maybe_start_dbus_proxy() more obviously correct]
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Signed-off-by: Simon McVittie <smcv@collabora.com>
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---
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app/flatpak-builtins-build.c | 3 ++-
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common/flatpak-dir.c | 1 +
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common/flatpak-run.c | 5 ++++-
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3 files changed, 7 insertions(+), 2 deletions(-)
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diff --git a/app/flatpak-builtins-build.c b/app/flatpak-builtins-build.c
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index c0b12dbca1..761af9a1b0 100644
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--- a/app/flatpak-builtins-build.c
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+++ b/app/flatpak-builtins-build.c
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@@ -576,7 +576,8 @@ flatpak_builtin_build (int argc, char **argv, GCancellable *cancellable, GError
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if (!flatpak_bwrap_bundle_args (bwrap, 1, -1, FALSE, error))
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return FALSE;
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- flatpak_bwrap_add_args (bwrap, command, NULL);
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+ flatpak_bwrap_add_args (bwrap, "--", command, NULL);
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+
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flatpak_bwrap_append_argsv (bwrap,
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&argv[rest_argv_start + 2],
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rest_argc - 2);
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diff --git a/common/flatpak-dir.c b/common/flatpak-dir.c
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index 6e07d08e3d..296a7dfd78 100644
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--- a/common/flatpak-dir.c
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+++ b/common/flatpak-dir.c
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@@ -6653,6 +6653,7 @@ flatpak_dir_run_triggers (FlatpakDir *self,
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"--proc", "/proc",
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"--dev", "/dev",
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"--bind", basedir, basedir,
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+ "--",
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NULL);
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#endif
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flatpak_bwrap_add_args (bwrap,
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diff --git a/common/flatpak-run.c b/common/flatpak-run.c
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index c4dcaca9e6..7a3900c651 100644
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--- a/common/flatpak-run.c
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+++ b/common/flatpak-run.c
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@@ -1082,6 +1082,9 @@ add_bwrap_wrapper (FlatpakBwrap *bwrap,
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if (!flatpak_bwrap_bundle_args (bwrap, 1, -1, FALSE, error))
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return FALSE;
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+ /* End of options: the next argument will be the executable name */
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+ flatpak_bwrap_add_arg (bwrap, "--");
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+
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return TRUE;
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}
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@@ -4175,7 +4178,7 @@ flatpak_run_app (FlatpakDecomposed *app_ref,
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if (!flatpak_bwrap_bundle_args (bwrap, 1, -1, FALSE, error))
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return FALSE;
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- flatpak_bwrap_add_arg (bwrap, command);
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+ flatpak_bwrap_add_args (bwrap, "--", command, NULL);
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if (!add_rest_args (bwrap, app_id,
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exports, (flags & FLATPAK_RUN_FLAG_FILE_FORWARDING) != 0,
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