In the Linux kernel 5.0.0-rc7 (as distributed in ubuntu/linux.git on kernel.ubuntu.com), mounting a crafted f2fs filesystem image and performing some operations can lead to slab-out-of-bounds read access in ttmputpages in drivers/gpu/drm/ttm/ttmpagealloc.c. This is related to the vmwgfx or ttm module.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19927.json"
[
{
"id": "CVE-2019-19927-46ba3b7c",
"target": {
"file": "drivers/gpu/drm/ttm/ttm_page_alloc.c"
},
"signature_version": "v1",
"deprecated": false,
"source": "https://github.com/torvalds/linux/commit/a66477b0efe511d98dde3e4aaeb189790e6f0a39",
"digest": {
"threshold": 0.9,
"line_hashes": [
"326076643667386052920635650788527917269",
"119226034389241099745372176478965204574",
"266227008761752950114530972373051021075",
"262692960416447504614192935349439133164",
"110359060582639856619496287965659870270",
"191597761232731968220978114018648244483",
"248888361986744661985494164766294327465",
"318299178903743336472857555494743935188"
]
},
"signature_type": "Line"
},
{
"id": "CVE-2019-19927-d3ee6e30",
"target": {
"function": "ttm_put_pages",
"file": "drivers/gpu/drm/ttm/ttm_page_alloc.c"
},
"signature_version": "v1",
"deprecated": false,
"source": "https://github.com/torvalds/linux/commit/453393369dc9806d2455151e329c599684762428",
"digest": {
"function_hash": "26023024944083981456893151128748390691",
"length": 2237.0
},
"signature_type": "Function"
},
{
"id": "CVE-2019-19927-e26915f4",
"target": {
"function": "ttm_put_pages",
"file": "drivers/gpu/drm/ttm/ttm_page_alloc.c"
},
"signature_version": "v1",
"deprecated": false,
"source": "https://github.com/torvalds/linux/commit/a66477b0efe511d98dde3e4aaeb189790e6f0a39",
"digest": {
"function_hash": "245534166080623322562226197023092386754",
"length": 2182.0
},
"signature_type": "Function"
},
{
"id": "CVE-2019-19927-e71b70f9",
"target": {
"file": "drivers/gpu/drm/ttm/ttm_page_alloc.c"
},
"signature_version": "v1",
"deprecated": false,
"source": "https://github.com/torvalds/linux/commit/453393369dc9806d2455151e329c599684762428",
"digest": {
"threshold": 0.9,
"line_hashes": [
"185429201649525461475341080317279673231",
"144154916568620175290739438296368461720",
"260891880774742804583921569940986321989",
"120149337367020958030298511826626900213",
"46222186351928262655787004385848694220",
"339359835593285832351254332710393960800",
"113943656563864528933723598430387348904",
"36891878371084011564641109398172488038"
]
},
"signature_type": "Line"
}
]