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-- | 516 bytes |
| Makefile | -rw-r--r-- | 166 bytes |
| af_phonet.c | -rw-r--r-- | 12.8 KB |
| datagram.c | -rw-r--r-- | 4.7 KB |
| pep-gprs.c | -rw-r--r-- | 6.8 KB |
| pep.c | -rw-r--r-- | 30.2 KB |
| pn_dev.c | -rw-r--r-- | 9.9 KB |
| pn_netlink.c | -rw-r--r-- | 7.4 KB |
| socket.c | -rw-r--r-- | 17.8 KB |
| sysctl.c | -rw-r--r-- | 2.8 KB |
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