diff options
| author | Thorsten Blum <blum@kernel.org> | 2026-08-26 12:09:03 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-08-27 22:50:05 -0700 |
| commit | f18e9c154e303a81137204e62658f66e37c01256 (patch) | |
| tree | 4e8dcf2b8415cc35724a0d671e491992e7f5270a /scripts/objdiff | |
| parent | 62b7f79cc5f279807f116665d7392bc0095cee58 (diff) | |
| download | linux-next-f18e9c154e303a81137204e62658f66e37c01256.tar.gz linux-next-f18e9c154e303a81137204e62658f66e37c01256.zip | |
init: fix early boot crash with bare hostname parameter
When a bare hostname parameter is specified on the kernel command line
without the '=' separator, early parameter parsing passes NULL to
early_hostname(), which dereferences it in strscpy() and can crash the
system during early boot.
Reject NULL values in early_hostname() and return -EINVAL instead.
Link: https://lore.kernel.org/20260826100904.296151-2-blum@kernel.org
Fixes: 5a704629f2c1 ("init: add "hostname" kernel parameter")
Signed-off-by: Thorsten Blum <blum@kernel.org>
Cc: Dan Moulding <dmoulding@me.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'scripts/objdiff')
0 files changed, 0 insertions, 0 deletions