Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=847641d7db15ac3f18b3d4aa05479812abdf397a
Commit: 847641d7db15ac3f18b3d4aa05479812abdf397a
Parent: 7386397636d49cd5f03da29432467d3e98cbad35
Author: Marcel Holtmann <[EMAIL PROTECTED]>
AuthorDate: Mon Jan 22 22:00:45 2007 +0100
Committer: Marcel Holtmann <[EMAIL PROTECTED]>
CommitDate: Mon Jan 22 22:00:45 2007 +0100
[Bluetooth] Restrict well known PSM to privileged users
The PSM values below 0x1001 of L2CAP are reserved for well known
services. Restrict the possibility to bind them to privileged
users.
Signed-off-by: Marcel Holtmann <[EMAIL PROTECTED]>
---
net/bluetooth/l2cap.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index be5a6e6..f8c25d5 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -585,6 +585,12 @@ static int l2cap_sock_bind(struct socket *sock, struct
sockaddr *addr, int addr_
goto done;
}
+ if (la->l2_psm > 0 && btohs(la->l2_psm) < 0x1001 &&
+ !capable(CAP_NET_BIND_SERVICE)) {
+ err = -EACCES;
+ goto done;
+ }
+
write_lock_bh(&l2cap_sk_list.lock);
if (la->l2_psm && __l2cap_get_sock_by_addr(la->l2_psm, &la->l2_bdaddr))
{
-
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