From 3ed88ba9e848aac74ae150b089ed36c25016faca Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Sun, 1 Nov 2015 16:21:24 +0000 Subject: [PATCH] isdn_ppp: Add checks for allocation failure in isdn_ppp_open() commit 0baa57d8dc32db78369d8b5176ef56c5e2e18ab3 upstream. Compile-tested only. Signed-off-by: Ben Hutchings Signed-off-by: David S. Miller --- drivers/isdn/i4l/isdn_ppp.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c index 1b002b0002a4..0033bca19ffc 100644 --- a/drivers/isdn/i4l/isdn_ppp.c +++ b/drivers/isdn/i4l/isdn_ppp.c @@ -301,6 +301,8 @@ isdn_ppp_open(int min, struct file *file) is->compflags = 0; is->reset = isdn_ppp_ccp_reset_alloc(is); + if (!is->reset) + return -ENOMEM; is->lp = NULL; is->mp_seqno = 0; /* MP sequence number */ @@ -320,6 +322,10 @@ isdn_ppp_open(int min, struct file *file) * VJ header compression init */ is->slcomp = slhc_init(16, 16); /* not necessary for 2. link in bundle */ + if (!is->slcomp) { + isdn_ppp_ccp_reset_free(is); + return -ENOMEM; + } #endif #ifdef CONFIG_IPPP_FILTER is->pass_filter = NULL; -- 2.39.2