| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: fix NULL ptr dereference in llcp_sock_getname() after failed connect\n\nIt's possible to trigger NULL pointer dereference by local unprivileged\nuser, when calling getsockname() after failed bind() (e.g. the bind\nfails because LLCP_SAP_MAX used as SAP):\n\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n CPU: 1 PID: 426 Comm: llcp_sock_getna Not tainted 5.13.0-rc2-next-20210521+ #9\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1 04/01/2014\n Call Trace:\n llcp_sock_getname+0xb1/0xe0\n __sys_getpeername+0x95/0xc0\n ? lockdep_hardirqs_on_prepare+0xd5/0x180\n ? syscall_enter_from_user_mode+0x1c/0x40\n __x64_sys_getpeername+0x11/0x20\n do_syscall_64+0x36/0x70\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nThis can be reproduced with Syzkaller C repro (bind followed by\ngetpeername):\nhttps://syzkaller.appspot.com/x/repro.c?x=14def446e00000" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "versions": [ |
| { |
| "version": "d646960f7986", |
| "lessThan": "eb6875d48590", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d646960f7986", |
| "lessThan": "39c15bd2e5d1", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d646960f7986", |
| "lessThan": "ffff05b9ee5c", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d646960f7986", |
| "lessThan": "93e4ac2a9979", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d646960f7986", |
| "lessThan": "5d4c4b06ed9f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d646960f7986", |
| "lessThan": "48ee0db61c82", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d646960f7986", |
| "lessThan": "0c4559736d9a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d646960f7986", |
| "lessThan": "4ac06a1e013c", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "versions": [ |
| { |
| "version": "3.3", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "3.3", |
| "status": "unaffected", |
| "versionType": "custom" |
| }, |
| { |
| "version": "4.4.272", |
| "lessThanOrEqual": "4.4.*", |
| "status": "unaffected", |
| "versionType": "custom" |
| }, |
| { |
| "version": "4.9.272", |
| "lessThanOrEqual": "4.9.*", |
| "status": "unaffected", |
| "versionType": "custom" |
| }, |
| { |
| "version": "4.14.236", |
| "lessThanOrEqual": "4.14.*", |
| "status": "unaffected", |
| "versionType": "custom" |
| }, |
| { |
| "version": "4.19.194", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "custom" |
| }, |
| { |
| "version": "5.4.125", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "custom" |
| }, |
| { |
| "version": "5.10.43", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "custom" |
| }, |
| { |
| "version": "5.12.10", |
| "lessThanOrEqual": "5.12.*", |
| "status": "unaffected", |
| "versionType": "custom" |
| }, |
| { |
| "version": "5.13", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/eb6875d48590d8e564092e831ff07fa384d7e477" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/39c15bd2e5d11bcf7f4c3dba2aad9e1e110a5d94" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ffff05b9ee5c74c04bba2801c1f99b31975d74d9" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/93e4ac2a9979a9a4ecc158409ed9c3044dc0ae1f" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5d4c4b06ed9fb7a69d0b2e2a73fc73226d25ab70" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/48ee0db61c8299022ec88c79ad137f290196cac2" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0c4559736d9a4ec1ca58ba98ca34e7c4da4c422b" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/4ac06a1e013cf5fdd963317ffd3b968560f33bba" |
| } |
| ], |
| "title": "nfc: fix NULL ptr dereference in llcp_sock_getname() after failed connect", |
| "x_generator": { |
| "engine": "bippy-8df59b4913de" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47115", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
