diff options
Diffstat (limited to 'debian/patches/bugfix/all/tty-n_gsm-require-CAP_NET_ADMIN-to-attach-N_GSM0710-.patch')
| -rw-r--r-- | debian/patches/bugfix/all/tty-n_gsm-require-CAP_NET_ADMIN-to-attach-N_GSM0710-.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/debian/patches/bugfix/all/tty-n_gsm-require-CAP_NET_ADMIN-to-attach-N_GSM0710-.patch b/debian/patches/bugfix/all/tty-n_gsm-require-CAP_NET_ADMIN-to-attach-N_GSM0710-.patch new file mode 100644 index 000000000..bfb6301cf --- /dev/null +++ b/debian/patches/bugfix/all/tty-n_gsm-require-CAP_NET_ADMIN-to-attach-N_GSM0710-.patch @@ -0,0 +1,35 @@ +From: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> +Date: Mon, 31 Jul 2023 15:59:42 -0300 +Subject: tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc +Origin: https://git.kernel.org/linus/67c37756898a5a6b2941a13ae7260c89b54e0d88 +Bug-Debian: https://bugs.debian.org/1068770 + +Any unprivileged user can attach N_GSM0710 ldisc, but it requires +CAP_NET_ADMIN to create a GSM network anyway. + +Require initial namespace CAP_NET_ADMIN to do that. + +Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> +Link: https://lore.kernel.org/r/20230731185942.279611-1-cascardo@canonical.com +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + drivers/tty/n_gsm.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c +index 1cdefac4dd1b..c7a787f10a9c 100644 +--- a/drivers/tty/n_gsm.c ++++ b/drivers/tty/n_gsm.c +@@ -3576,6 +3576,9 @@ static int gsmld_open(struct tty_struct *tty) + { + struct gsm_mux *gsm; + ++ if (!capable(CAP_NET_ADMIN)) ++ return -EPERM; ++ + if (tty->ops->write == NULL) + return -EINVAL; + +-- +2.43.0 + |