{ "containers": { "cna": { "affected": [ { "product": "Linux kernel through v4.14-rc5", "vendor": "n/a", "versions": [ { "status": "affected", "version": "Linux kernel through v4.14-rc5" } ] } ], "datePublic": "2017-11-22T00:00:00", "descriptions": [ { "lang": "en", "value": "The bio_map_user_iov and bio_unmap_user functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition." } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-400", "description": "CWE-400", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2019-11-13T02:06:45", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058" }, { "name": "101911", "tags": [ "vdb-entry", "x_refsource_BID" ], "url": "http://www.securityfocus.com/bid/101911" }, { "name": "[debian-lts-announce] 20171210 [SECURITY] [DLA 1200-1] linux security update", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html" }, { "name": "USN-3583-2", 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