| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix uninit-value in caif_seqpkt_sendmsg\n\nWhen nr_segs equal to zero in iovec_from_user, the object\nmsg->msg_iter.iov is uninit stack memory in caif_seqpkt_sendmsg\nwhich is defined in ___sys_sendmsg. So we cann't just judge\nmsg->msg_iter.iov->base directlly. We can use nr_segs to judge\nmsg in caif_seqpkt_sendmsg whether has data buffers.\n\n=====================================================\nBUG: KMSAN: uninit-value in caif_seqpkt_sendmsg+0x693/0xf60 net/caif/caif_socket.c:542\nCall Trace:\n __dump_stack lib/dump_stack.c:77 [inline]\n dump_stack+0x1c9/0x220 lib/dump_stack.c:118\n kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:118\n __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215\n caif_seqpkt_sendmsg+0x693/0xf60 net/caif/caif_socket.c:542\n sock_sendmsg_nosec net/socket.c:652 [inline]\n sock_sendmsg net/socket.c:672 [inline]\n ____sys_sendmsg+0x12b6/0x1350 net/socket.c:2343\n ___sys_sendmsg net/socket.c:2397 [inline]\n __sys_sendmmsg+0x808/0xc90 net/socket.c:2480\n __compat_sys_sendmmsg net/compat.c:656 [inline]" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/caif/caif_socket.c" |
| ], |
| "versions": [ |
| { |
| "version": "bece7b2398d073d11b2e352405a3ecd3a1e39c60", |
| "lessThan": "d9d646acad2c3590e189bb5d5c86ab8bd8a2dfc3", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "bece7b2398d073d11b2e352405a3ecd3a1e39c60", |
| "lessThan": "5c6d8e2f7187b8e45a18c27acb7a3885f03ee3db", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "bece7b2398d073d11b2e352405a3ecd3a1e39c60", |
| "lessThan": "ffe31dd70b70a40cd6b21b78c1713a23e021843a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "bece7b2398d073d11b2e352405a3ecd3a1e39c60", |
| "lessThan": "452c3ed7bf63721b07bc2238ed1261bb26027e85", |
| "status": "affected", |
| "versionType": "git" |
| }, |
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| "version": "bece7b2398d073d11b2e352405a3ecd3a1e39c60", |
| "lessThan": "9413c0abb57f70a953b1116318d6aa478013c35d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "bece7b2398d073d11b2e352405a3ecd3a1e39c60", |
| "lessThan": "1582a02fecffcee306663035a295e28e1c4aaaff", |
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| "version": "bece7b2398d073d11b2e352405a3ecd3a1e39c60", |
| "lessThan": "d4c7797ab1517515f0d08b3bc1c6b48883889c54", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "bece7b2398d073d11b2e352405a3ecd3a1e39c60", |
| "lessThan": "991e634360f2622a683b48dfe44fe6d9cb765a09", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/caif/caif_socket.c" |
| ], |
| "versions": [ |
| { |
| "version": "2.6.35", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "2.6.35", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.4.277", |
| "lessThanOrEqual": "4.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.9.277", |
| "lessThanOrEqual": "4.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.14.241", |
| "lessThanOrEqual": "4.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.199", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.136", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.54", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.13.6", |
| "lessThanOrEqual": "5.13.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.14", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.35", |
| "versionEndExcluding": "4.4.277" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.35", |
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| }, |
| { |
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| }, |
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| "versionEndExcluding": "5.4.136" |
| }, |
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| "versionEndExcluding": "5.10.54" |
| }, |
| { |
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| "versionStartIncluding": "2.6.35", |
| "versionEndExcluding": "5.13.6" |
| }, |
| { |
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| "versionStartIncluding": "2.6.35", |
| "versionEndExcluding": "5.14" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/d9d646acad2c3590e189bb5d5c86ab8bd8a2dfc3" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5c6d8e2f7187b8e45a18c27acb7a3885f03ee3db" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ffe31dd70b70a40cd6b21b78c1713a23e021843a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/452c3ed7bf63721b07bc2238ed1261bb26027e85" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/9413c0abb57f70a953b1116318d6aa478013c35d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/1582a02fecffcee306663035a295e28e1c4aaaff" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/d4c7797ab1517515f0d08b3bc1c6b48883889c54" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/991e634360f2622a683b48dfe44fe6d9cb765a09" |
| } |
| ], |
| "title": "net: fix uninit-value in caif_seqpkt_sendmsg", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47297", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
