Baokun Li a26dc49df3

cachefiles: add consistency check for copen/cread ...

This prevents malicious processes from completing random copen/cread
requests and crashing the system. Added checks are listed below:

  * Generic, copen can only complete open requests, and cread can only
    complete read requests.
  * For copen, ondemand_id must not be 0, because this indicates that the
    request has not been read by the daemon.
  * For cread, the object corresponding to fd and req should be the same.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Link: https://lore.kernel.org/r/20240522114308.2402121-7-libaokun@huaweicloud.com
Acked-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>

2024-05-29 13:03:30 +02:00

..

cache.c

cachefiles: fix memory leak in cachefiles_add_cache()

2024-02-20 09:46:07 +01:00

daemon.c

cachefiles: remove requests from xarray during flushing requests

2024-05-29 13:03:29 +02:00

error_inject.c

cachefiles: Remove the now superfluous sentinel element from ctl_table array

2023-12-28 04:57:57 -08:00

interface.c

cachefiles: extract ondemand info field from cachefiles_object

2023-11-25 16:03:57 +01:00

internal.h

cachefiles: fix slab-use-after-free in cachefiles_ondemand_get_fd()

2024-05-29 13:03:29 +02:00

io.c

vfs-6.8.netfs

2024-01-19 09:10:23 -08:00

Kconfig

netfs, fscache: Combine fscache with netfs

2023-12-24 15:08:46 +00:00

key.c

cachefiles: Implement key to filename encoding

2022-01-07 13:42:16 +00:00

main.c

cachefiles: Implement object lifecycle funcs

2022-01-07 13:42:08 +00:00

Makefile

cachefiles: notify the user daemon when looking up cookie

2022-05-18 00:11:17 +08:00

namei.c

rename(): avoid a deadlock in the case of parents having no common ancestor

2023-11-25 02:54:14 -05:00

ondemand.c

cachefiles: add consistency check for copen/cread

2024-05-29 13:03:30 +02:00

security.c

cachefiles: Add security derivation

2022-01-07 13:41:14 +00:00

volume.c

fscache, cachefiles: Store the volume coherency data

2022-01-07 13:43:03 +00:00

xattr.c

fs: port ->permission() to pass mnt_idmap

2023-01-19 09:24:28 +01:00