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fixes "Bad or missing usercopy whitelist? Kernel memory exposure attempt |
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fixes "Bad or missing usercopy whitelist? Kernel memory exposure attempt |
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detected from SLUB object 'nvidia_stack_cache'" on linux-image-4.16.0-2-* |
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detected from SLUB object 'nvidia_stack_cache'" on linux-image-4.16.0-2-* |
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or newer that have disabled CONFIG_HARDENED_USERCOPY_FALLBACK |
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or newer that have disabled CONFIG_HARDENED_USERCOPY_FALLBACK |
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-- a/kernel/nv-linux.h |
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++ b/kernel/nv-linux.h |
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Lines 757-767
extern nv_spinlock_t km_lock;
Link Here
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| 757 |
0, 0, NULL, NULL); \ |
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0, 0, NULL, NULL); \ |
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} |
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} |
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#elif (NV_KMEM_CACHE_CREATE_ARGUMENT_COUNT == 5) |
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#elif (NV_KMEM_CACHE_CREATE_ARGUMENT_COUNT == 5) |
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 16, 0) |
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#define NV_KMEM_CACHE_CREATE(kmem_cache, name, type) \ |
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{ \ |
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kmem_cache = kmem_cache_create_usercopy(name, sizeof(type), 0, 0, 0, sizeof(type), NULL); \ |
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} |
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#else |
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#define NV_KMEM_CACHE_CREATE(kmem_cache, name, type) \ |
766 |
#define NV_KMEM_CACHE_CREATE(kmem_cache, name, type) \ |
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{ \ |
767 |
{ \ |
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kmem_cache = kmem_cache_create(name, sizeof(type), \ |
768 |
kmem_cache = kmem_cache_create(name, sizeof(type), \ |
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0, 0, NULL); \ |
769 |
0, 0, NULL); \ |
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} |
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} |
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771 |
#endif |
| 765 |
#else |
772 |
#else |
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#error "NV_KMEM_CACHE_CREATE_ARGUMENT_COUNT value unrecognized!" |
773 |
#error "NV_KMEM_CACHE_CREATE_ARGUMENT_COUNT value unrecognized!" |
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#endif |
774 |
#endif |
