Messages in this thread | | | Date | Wed, 28 Nov 2018 15:20:20 -0800 | From | Eric Biggers <> | Subject | Re: [PATCH] KEYS: fix parsing invalid pkey info string |
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On Sat, Nov 03, 2018 at 10:30:35AM -0700, Eric Biggers wrote: > From: Eric Biggers <ebiggers@google.com> > > We need to check the return value of match_token() for Opt_err (-1) > before doing anything with it. > > Reported-by: syzbot+a22e0dc07567662c50bc@syzkaller.appspotmail.com > Fixes: 00d60fd3b932 ("KEYS: Provide keyctls to drive the new key type ops for asymmetric keys [ver #2]") > Signed-off-by: Eric Biggers <ebiggers@google.com> > --- > security/keys/keyctl_pkey.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/security/keys/keyctl_pkey.c b/security/keys/keyctl_pkey.c > index 783978842f13a..987fac8051d70 100644 > --- a/security/keys/keyctl_pkey.c > +++ b/security/keys/keyctl_pkey.c > @@ -50,6 +50,8 @@ static int keyctl_pkey_params_parse(struct kernel_pkey_params *params) > if (*p == '\0' || *p == ' ' || *p == '\t') > continue; > token = match_token(p, param_keys, args); > + if (token == Opt_err) > + return -EINVAL; > if (__test_and_set_bit(token, &token_mask)) > return -EINVAL; > q = args[0].from; > -- > 2.19.1
Ping. David, are you planning to apply this?
- Eric
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