diff options
Diffstat (limited to '04-fix_message_in_dmesg.patch')
| -rw-r--r-- | 04-fix_message_in_dmesg.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/04-fix_message_in_dmesg.patch b/04-fix_message_in_dmesg.patch new file mode 100644 index 000000000000..f3d70900690d --- /dev/null +++ b/04-fix_message_in_dmesg.patch @@ -0,0 +1,51 @@ +Patch by vova7890 +> vova7890 commented on 2020-03-19 01:01 +> I'm facing this message in dmesg: Bad or missing usercopy whitelist? +> Kernel memory exposure attempt detected from SLUB object 'nvidia_stack_t' +> A little search and I had portback this patch to 340xx. +> Can you please add this? https://zvova7890.com.ua/s/ed9JJG8KyQKQQBx +-- +vova7890 commented on 2020-03-19 01:01 +diff -Naur a/nv.c b/nv.c +--- a/nv.c 2019-12-12 00:04:24.000000000 +0200 ++++ b/nv.c 2020-03-19 04:21:13.923750900 +0200 +@@ -752,7 +752,7 @@ + NV_SPIN_LOCK_INIT(&km_lock); + #endif + +- NV_KMEM_CACHE_CREATE(nv_stack_t_cache, NV_STACK_CACHE_STR, nv_stack_t); ++ NV_KMEM_CACHE_CREATE_USERCOPY(nv_stack_t_cache, NV_STACK_CACHE_STR, nv_stack_t); + if (nv_stack_t_cache == NULL) + { + nv_printf(NV_DBG_ERRORS, "NVRM: stack cache allocation failed!\n"); +diff -Naur a/nv-linux.h b/nv-linux.h +--- a/nv-linux.h 2019-12-12 00:04:24.000000000 +0200 ++++ b/nv-linux.h 2020-03-19 04:21:13.927084233 +0200 +@@ -762,9 +762,27 @@ + kmem_cache = kmem_cache_create(name, sizeof(type), \ + 0, 0, NULL); \ + } ++#define NV_KMEM_CACHE_CREATE_FULL(name, size, align, flags, ctor) \ ++ kmem_cache_create(name, size, align, flags, ctor) + #else + #error "NV_KMEM_CACHE_CREATE_ARGUMENT_COUNT value unrecognized!" + #endif ++ ++#define NV_KMEM_CACHE_CREATE_FULL_USERCOPY(name, size, align, flags, useroffset, usersize, ctor) \ ++ kmem_cache_create_usercopy(name, size, align, flags, useroffset, usersize, ctor); ++ ++#ifdef SLAB_USERCOPY ++#define NV_KMEM_CACHE_CREATE_USERCOPY(kmem_cache, name, type) \ ++ { \ ++ kmem_cache = NV_KMEM_CACHE_CREATE_FULL(name, sizeof(type), 0, SLAB_USERCOPY, NULL); \ ++ } ++#else ++#define NV_KMEM_CACHE_CREATE_USERCOPY(kmem_cache, name, type) \ ++ { \ ++ kmem_cache = NV_KMEM_CACHE_CREATE_FULL_USERCOPY(name, sizeof(type), 0, 0, 0, sizeof(type), NULL); \ ++ } ++#endif ++ + #define NV_KMEM_CACHE_DESTROY(kmem_cache) \ + { \ + kmem_cache_destroy(kmem_cache); \ |