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860497a |
commit 1bf38e7260c2cd3e40e118c1f1ea28de182dc751
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
Date: Tue Mar 16 12:37:55 2021 +0530
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
Fix SXID_ERASE behavior in setuid programs (BZ #27471)
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
When parse_tunables tries to erase a tunable marked as SXID_ERASE for
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
setuid programs, it ends up setting the envvar string iterator
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
incorrectly, because of which it may parse the next tunable
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
incorrectly. Given that currently the implementation allows malformed
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
and unrecognized tunables pass through, it may even allow SXID_ERASE
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
tunables to go through.
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
This change revamps the SXID_ERASE implementation so that:
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- Only valid tunables are written back to the tunestr string, because
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
of which children of SXID programs will only inherit a clean list of
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
identified tunables that are not SXID_ERASE.
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- Unrecognized tunables get scrubbed off from the environment and
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
subsequently from the child environment.
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- This has the side-effect that a tunable that is not identified by
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
the setxid binary, will not be passed on to a non-setxid child even
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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if the child could have identified that tunable. This may break
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
applications that expect this behaviour but expecting such tunables
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
to cross the SXID boundary is wrong.
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
(cherry picked from commit 2ed18c5b534d9e92fc006202a5af0df6b72e7aca)
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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diff --git a/elf/dl-tunables.c b/elf/dl-tunables.c
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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index 8b751dcf0deb0d01..8009e54ee5db32be 100644
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
--- a/elf/dl-tunables.c
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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+++ b/elf/dl-tunables.c
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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@@ -174,6 +174,7 @@ parse_tunables (char *tunestr, char *valstring)
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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return;
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char *p = tunestr;
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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+ size_t off = 0;
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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while (true)
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{
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@@ -187,7 +188,11 @@ parse_tunables (char *tunestr, char *valstring)
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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/* If we reach the end of the string before getting a valid name-value
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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pair, bail out. */
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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if (p[len] == '\0')
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- return;
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+ {
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+ if (__libc_enable_secure)
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+ tunestr[off] = '\0';
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+ return;
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+ }
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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/* We did not find a valid name-value pair before encountering the
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colon. */
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@@ -213,35 +218,28 @@ parse_tunables (char *tunestr, char *valstring)
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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if (tunable_is_name (cur->name, name))
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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{
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- /* If we are in a secure context (AT_SECURE) then ignore the tunable
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- unless it is explicitly marked as secure. Tunable values take
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- precedence over their envvar aliases. */
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+ /* If we are in a secure context (AT_SECURE) then ignore the
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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+ tunable unless it is explicitly marked as secure. Tunable
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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+ values take precedence over their envvar aliases. We write
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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+ the tunables that are not SXID_ERASE back to TUNESTR, thus
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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+ dropping all SXID_ERASE tunables and any invalid or
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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+ unrecognized tunables. */
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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if (__libc_enable_secure)
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{
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- if (cur->security_level == TUNABLE_SECLEVEL_SXID_ERASE)
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+ if (cur->security_level != TUNABLE_SECLEVEL_SXID_ERASE)
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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{
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- if (p[len] == '\0')
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- {
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- /* Last tunable in the valstring. Null-terminate and
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- return. */
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- *name = '\0';
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- return;
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- }
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
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- else
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- {
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- /* Remove the current tunable from the string. We do
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![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- this by overwriting the string starting from NAME
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- (which is where the current tunable begins) with
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- the remainder of the string. We then have P point
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- to NAME so that we continue in the correct
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- position in the valstring. */
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- char *q = &p[len + 1];
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- p = name;
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- while (*q != '\0')
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- *name++ = *q++;
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- name[0] = '\0';
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- len = 0;
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- }
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ if (off > 0)
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ tunestr[off++] = ':';
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ const char *n = cur->name;
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ while (*n != '\0')
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ tunestr[off++] = *n++;
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ tunestr[off++] = '=';
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ for (size_t j = 0; j < len; j++)
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ tunestr[off++] = value[j];
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
}
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
if (cur->security_level != TUNABLE_SECLEVEL_NONE)
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
@@ -254,9 +252,7 @@ parse_tunables (char *tunestr, char *valstring)
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
}
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
}
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- if (p[len] == '\0')
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- return;
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
- else
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ if (p[len] != '\0')
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
p += len + 1;
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
}
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
}
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
diff --git a/elf/tst-env-setuid-tunables.c b/elf/tst-env-setuid-tunables.c
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
index 3d523875b1e07a74..05619c9adc8b2698 100644
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
--- a/elf/tst-env-setuid-tunables.c
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+++ b/elf/tst-env-setuid-tunables.c
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
@@ -45,11 +45,37 @@
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
const char *teststrings[] =
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
{
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
"glibc.malloc.check=2:glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.check=2:glibc.malloc.check=2:glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.check=2:glibc.malloc.mmap_threshold=4096:glibc.malloc.check=2",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.perturb=0x800",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.perturb=0x800:glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.perturb=0x800:not_valid.malloc.check=2:glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.not_valid.check=2:glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "not_valid.malloc.check=2:glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.garbage=2:glibc.maoc.mmap_threshold=4096:glibc.malloc.check=2",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.check=4:glibc.malloc.garbage=2:glibc.maoc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ ":glibc.malloc.garbage=2:glibc.malloc.check=1",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.check=1:glibc.malloc.check=2",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "not_valid.malloc.check=2",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.not_valid.check=2",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
};
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
const char *resultstrings[] =
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
{
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
"glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.perturb=0x800",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.perturb=0x800:glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.perturb=0x800:glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "glibc.malloc.mmap_threshold=4096",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
+ "",
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
};
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
|
|
![](https://seccdn.libravatar.org/avatar/3a472f8ae167e3d9ad669220b1e8ed6d98f2576fa0461d58f9444841c8e3b2f5?s=16&d=retro) |
860497a |
static int
|