Revision 0f0909e242f73c1154272cf04f07fc9afe13e5b8 authored by Eric Biggers on 14 November 2016, 01:41:09 UTC, committed by Theodore Ts'o on 20 November 2016, 01:56:13 UTC
With the new (in 4.9) option to use a virtually-mapped stack (CONFIG_VMAP_STACK), stack buffers cannot be used as input/output for the scatterlist crypto API because they may not be directly mappable to struct page. get_crypt_info() was using a stack buffer to hold the output from the encryption operation used to derive the per-file key. Fix it by using a heap buffer. This bug could most easily be observed in a CONFIG_DEBUG_SG kernel because this allowed the BUG in sg_set_buf() to be triggered. Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 1.5 KB |
| Makefile | -rw-r--r-- | 271 bytes |
| af_x25.c | -rw-r--r-- | 40.2 KB |
| sysctl_net_x25.c | -rw-r--r-- | 1.9 KB |
| x25_dev.c | -rw-r--r-- | 4.4 KB |
| x25_facilities.c | -rw-r--r-- | 9.1 KB |
| x25_forward.c | -rw-r--r-- | 3.9 KB |
| x25_in.c | -rw-r--r-- | 9.8 KB |
| x25_link.c | -rw-r--r-- | 8.9 KB |
| x25_out.c | -rw-r--r-- | 5.3 KB |
| x25_proc.c | -rw-r--r-- | 5.9 KB |
| x25_route.c | -rw-r--r-- | 4.8 KB |
| x25_subr.c | -rw-r--r-- | 9.5 KB |
| x25_timer.c | -rw-r--r-- | 3.8 KB |
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