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| author | Eric Biggers <ebiggers@google.com> | 2018-11-03 20:30:35 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-01-02 00:13:19 +0300 |
| commit | 57b0e31453209d746c99e513d80b3d0c44a80891 (patch) | |
| tree | 488525ecb8c89bcbdc8da1dc1eca4111870d955a /drivers/watchdog/hpwdt.c | |
| parent | e1ef035d272ef4dbfdda98e58699698305138856 (diff) | |
| download | linux-57b0e31453209d746c99e513d80b3d0c44a80891.tar.xz | |
KEYS: fix parsing invalid pkey info string
We need to check the return value of match_token() for Opt_err before
doing anything with it.
[ Not only did the old "-1" value for Opt_err cause problems for the
__test_and_set_bit(), as fixed in commit 94c13f66e13c ("security:
don't use a negative Opt_err token index"), but accessing
"args[0].from" is invalid for the Opt_err case, as pointed out by Eric
later. - Linus ]
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>
Cc: stable@kernel.org # 4.20
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/watchdog/hpwdt.c')
0 files changed, 0 insertions, 0 deletions