lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Thu, 17 Jul 2014 12:16:53 +0200 From: Marcel Holtmann <marcel@...tmann.org> To: Vladimir Davydov <vdavydov@...allels.com> Cc: "David S. Miller" <davem@...emloft.net>, Network Development <netdev@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, "Gustavo F. Padovan" <gustavo@...ovan.org>, Johan Hedberg <johan.hedberg@...il.com>, Linux Bluetooth mailing list <linux-bluetooth@...r.kernel.org> Subject: Re: [PATCH] bluetooth: never linger on process exit Hi Vladimir, > If the current process is exiting, lingering on socket close will make > it unkillable, so we should avoid it. > > Reproducer: > > #include <sys/types.h> > #include <sys/socket.h> > > #define BTPROTO_L2CAP 0 > #define BTPROTO_SCO 2 > #define BTPROTO_RFCOMM 3 > > int main() > { > int fd; > struct linger ling; > > fd = socket(PF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM); > //or: fd = socket(PF_BLUETOOTH, SOCK_DGRAM, BTPROTO_L2CAP); > //or: fd = socket(PF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_SCO); > > ling.l_onoff = 1; > ling.l_linger = 1000000000; > setsockopt(fd, SOL_SOCKET, SO_LINGER, &ling, sizeof(ling)); > > return 0; > } > > Signed-off-by: Vladimir Davydov <vdavydov@...allels.com> > Cc: Marcel Holtmann <marcel@...tmann.org> > Cc: Gustavo Padovan <gustavo@...ovan.org> > Cc: Johan Hedberg <johan.hedberg@...il.com> > --- > net/bluetooth/l2cap_sock.c | 3 ++- > net/bluetooth/rfcomm/sock.c | 3 ++- > net/bluetooth/sco.c | 6 ++++-- > 3 files changed, 8 insertions(+), 4 deletions(-) patch has been applied to bluetooth-next tree. Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists