diff options
author | Thomas Weißschuh <linux@weissschuh.net> | 2024-05-03 15:44:09 +0200 |
---|---|---|
committer | Kees Cook <keescook@chromium.org> | 2024-05-03 12:35:12 -0700 |
commit | 0e148d3cca0dc1a7c6063939f6cb9ba4866c39a7 (patch) | |
tree | a2f14853623d0ec84dfca6c5ea7616447c0a708f /init | |
parent | string: Add additional __realloc_size() annotations for "dup" helpers (diff) | |
download | linux-0e148d3cca0dc1a7c6063939f6cb9ba4866c39a7.tar.gz linux-0e148d3cca0dc1a7c6063939f6cb9ba4866c39a7.tar.bz2 linux-0e148d3cca0dc1a7c6063939f6cb9ba4866c39a7.zip |
stackleak: Use a copy of the ctl_table argument
Sysctl handlers are not supposed to modify the ctl_table passed to them.
Adapt the logic to work with a temporary variable, similar to how it is
done in other parts of the kernel.
This is also a prerequisite to enforce the immutability of the argument
through the callbacks.
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Tycho Andersen <tycho@tycho.pizza>
Link: https://lore.kernel.org/r/20240503-sysctl-const-stackleak-v1-1-603fecb19170@weissschuh.net
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions