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| author | David Howells <dhowells@redhat.com> | 2013-11-13 11:51:06 -0500 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2013-11-13 11:51:06 -0500 |
| commit | 97826c821ec6724fc359d9b7840dc10af914c641 (patch) | |
| tree | 0d0f64d3dde09c876fd0248df6ca6bfaec16be93 /Documentation/prctl | |
| parent | fbf8c53f1a2ac7610ed124043600dc074992e71b (diff) | |
KEYS: Fix error handling in big_key instantiation
In the big_key_instantiate() function we return 0 if kernel_write() returns us
an error rather than returning an error. This can potentially lead to
dentry_open() giving a BUG when called from big_key_read() with an unset
tmpfile path.
------------[ cut here ]------------
kernel BUG at fs/open.c:798!
...
RIP: 0010:[<ffffffff8119bbd1>] dentry_open+0xd1/0xe0
...
Call Trace:
[<ffffffff812350c5>] big_key_read+0x55/0x100
[<ffffffff81231084>] keyctl_read_key+0xb4/0xe0
[<ffffffff81231e58>] SyS_keyctl+0xf8/0x1d0
[<ffffffff815bb799>] system_call_fastpath+0x16/0x1b
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Stephen Gallagher <sgallagh@redhat.com>
Diffstat (limited to 'Documentation/prctl')
0 files changed, 0 insertions, 0 deletions