A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc

Browse source 
commit 67c37756898a5a6b2941a13ae7260c89b54e0d88 upstream.

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 <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Cc: Salvatore Bonaccorso <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Thadeu Lima de Souza Cascardo 2023-07-31 15:59:42 -03:00 • committed by Greg Kroah-Hartman
commit 7a529c9023
1 changed files with 3 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

3
drivers/tty/n_gsm.c
View file

@ -2567,6 +2567,9 @@ static int gsmld_open(struct tty_struct *tty)
struct gsm_mux *gsm;
int ret;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (tty->ops->write == NULL)
return -EINVAL;