diff options
Diffstat (limited to 'recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/revert_aio_fix_spectre_gadget_in_lookup_ioctx.patch')
| -rw-r--r-- | recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/revert_aio_fix_spectre_gadget_in_lookup_ioctx.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/revert_aio_fix_spectre_gadget_in_lookup_ioctx.patch b/recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/revert_aio_fix_spectre_gadget_in_lookup_ioctx.patch new file mode 100644 index 0000000..c56c72f --- /dev/null +++ b/recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/revert_aio_fix_spectre_gadget_in_lookup_ioctx.patch @@ -0,0 +1,28 @@ +commit 2f7fbc052b632c0ae2d4a2bb5d5c928bbc24ca43 +Author: Marcel Ziswiler <marcel.ziswiler@toradex.com> +Date: Tue Apr 9 04:12:18 2019 +0200 + + Revert "aio: fix spectre gadget in lookup_ioctx" + + This reverts commit 3a7bac902691cd92cb69f95d98dc675dea8b3228. + +diff --git a/fs/aio.c b/fs/aio.c +index c3fc80294397..b1170a7affe2 100644 +--- a/fs/aio.c ++++ b/fs/aio.c +@@ -40,7 +40,6 @@ + #include <linux/ramfs.h> + #include <linux/percpu-refcount.h> + #include <linux/mount.h> +-#include <linux/nospec.h> + + #include <asm/kmap_types.h> + #include <asm/uaccess.h> +@@ -1072,7 +1071,6 @@ static struct kioctx *lookup_ioctx(unsigned long ctx_id) + if (!table || id >= table->nr) + goto out; + +- id = array_index_nospec(id, table->nr); + ctx = rcu_dereference(table->table[id]); + if (ctx && ctx->user_id == ctx_id) { + if (percpu_ref_tryget_live(&ctx->users)) |