Show plain JSON{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-48855", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.918Z", "datePublished": "2024-07-16T12:25:21.145Z", "dateUpdated": "2025-05-04T08:24:47.845Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:24:47.845Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: fix kernel-infoleak for SCTP sockets\n\nsyzbot reported a kernel infoleak [1] of 4 bytes.\n\nAfter analysis, it turned out r->idiag_expires is not initialized\nif inet_sctp_diag_fill() calls inet_diag_msg_common_fill()\n\nMake sure to clear idiag_timer/idiag_retrans/idiag_expires\nand let inet_diag_msg_sctpasoc_fill() fill them again if needed.\n\n[1]\n\nBUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:121 [inline]\nBUG: KMSAN: kernel-infoleak in copyout lib/iov_iter.c:154 [inline]\nBUG: KMSAN: kernel-infoleak in _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668\n instrument_copy_to_user include/linux/instrumented.h:121 [inline]\n copyout lib/iov_iter.c:154 [inline]\n _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668\n copy_to_iter include/linux/uio.h:162 [inline]\n simple_copy_to_iter+0xf3/0x140 net/core/datagram.c:519\n __skb_datagram_iter+0x2d5/0x11b0 net/core/datagram.c:425\n skb_copy_datagram_iter+0xdc/0x270 net/core/datagram.c:533\n skb_copy_datagram_msg include/linux/skbuff.h:3696 [inline]\n netlink_recvmsg+0x669/0x1c80 net/netlink/af_netlink.c:1977\n sock_recvmsg_nosec net/socket.c:948 [inline]\n sock_recvmsg net/socket.c:966 [inline]\n __sys_recvfrom+0x795/0xa10 net/socket.c:2097\n __do_sys_recvfrom net/socket.c:2115 [inline]\n __se_sys_recvfrom net/socket.c:2111 [inline]\n __x64_sys_recvfrom+0x19d/0x210 net/socket.c:2111\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nUninit was created at:\n slab_post_alloc_hook mm/slab.h:737 [inline]\n slab_alloc_node mm/slub.c:3247 [inline]\n __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4975\n kmalloc_reserve net/core/skbuff.c:354 [inline]\n __alloc_skb+0x545/0xf90 net/core/skbuff.c:426\n alloc_skb include/linux/skbuff.h:1158 [inline]\n netlink_dump+0x3e5/0x16c0 net/netlink/af_netlink.c:2248\n __netlink_dump_start+0xcf8/0xe90 net/netlink/af_netlink.c:2373\n netlink_dump_start include/linux/netlink.h:254 [inline]\n inet_diag_handler_cmd+0x2e7/0x400 net/ipv4/inet_diag.c:1341\n sock_diag_rcv_msg+0x24a/0x620\n netlink_rcv_skb+0x40c/0x7e0 net/netlink/af_netlink.c:2494\n sock_diag_rcv+0x63/0x80 net/core/sock_diag.c:277\n netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]\n netlink_unicast+0x1093/0x1360 net/netlink/af_netlink.c:1343\n netlink_sendmsg+0x14d9/0x1720 net/netlink/af_netlink.c:1919\n sock_sendmsg_nosec net/socket.c:705 [inline]\n sock_sendmsg net/socket.c:725 [inline]\n sock_write_iter+0x594/0x690 net/socket.c:1061\n do_iter_readv_writev+0xa7f/0xc70\n do_iter_write+0x52c/0x1500 fs/read_write.c:851\n vfs_writev fs/read_write.c:924 [inline]\n do_writev+0x645/0xe00 fs/read_write.c:967\n __do_sys_writev fs/read_write.c:1040 [inline]\n __se_sys_writev fs/read_write.c:1037 [inline]\n __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nBytes 68-71 of 2508 are uninitialized\nMemory access of size 2508 starts at ffff888114f9b000\nData copied to user address 00007f7fe09ff2e0\n\nCPU: 1 PID: 3478 Comm: syz-executor306 Not tainted 5.17.0-rc4-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sctp/diag.c"], "versions": [{"version": "8f840e47f190cbe61a96945c13e9551048d42cef", "lessThan": "3fc0fd724d199e061432b66a8d85b7d48fe485f7", "status": "affected", "versionType": "git"}, {"version": "8f840e47f190cbe61a96945c13e9551048d42cef", "lessThan": "41a2864cf719c17294f417726edd411643462ab8", "status": "affected", "versionType": "git"}, {"version": "8f840e47f190cbe61a96945c13e9551048d42cef", "lessThan": "2d8fa3fdf4542a2174a72d92018f488d65d848c5", "status": "affected", "versionType": "git"}, {"version": "8f840e47f190cbe61a96945c13e9551048d42cef", "lessThan": "bbf59d7ae558940cfa2b36a287fd1e88d83f89f8", "status": "affected", "versionType": "git"}, {"version": "8f840e47f190cbe61a96945c13e9551048d42cef", "lessThan": "b7e4d9ba2ddb78801488b4c623875b81fb46b545", "status": "affected", "versionType": "git"}, {"version": "8f840e47f190cbe61a96945c13e9551048d42cef", "lessThan": "1502f15b9f29c41883a6139f2923523873282a83", "status": "affected", "versionType": "git"}, {"version": "8f840e47f190cbe61a96945c13e9551048d42cef", "lessThan": "d828b0fe6631f3ae8709ac9a10c77c5836c76a08", "status": "affected", "versionType": "git"}, {"version": "8f840e47f190cbe61a96945c13e9551048d42cef", "lessThan": "633593a808980f82d251d0ca89730d8bb8b0220c", "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/sctp/diag.c"], "versions": [{"version": "4.7", "status": "affected"}, {"version": "0", "lessThan": "4.7", "status": "unaffected", "versionType": "semver"}, {"version": "4.9.307", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.272", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.235", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.185", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.106", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.29", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16.15", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17", "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": "4.7", "versionEndExcluding": "4.9.307"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "4.14.272"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "4.19.235"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.4.185"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.10.106"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.15.29"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.16.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3fc0fd724d199e061432b66a8d85b7d48fe485f7"}, {"url": "https://git.kernel.org/stable/c/41a2864cf719c17294f417726edd411643462ab8"}, {"url": "https://git.kernel.org/stable/c/2d8fa3fdf4542a2174a72d92018f488d65d848c5"}, {"url": "https://git.kernel.org/stable/c/bbf59d7ae558940cfa2b36a287fd1e88d83f89f8"}, {"url": "https://git.kernel.org/stable/c/b7e4d9ba2ddb78801488b4c623875b81fb46b545"}, {"url": "https://git.kernel.org/stable/c/1502f15b9f29c41883a6139f2923523873282a83"}, {"url": "https://git.kernel.org/stable/c/d828b0fe6631f3ae8709ac9a10c77c5836c76a08"}, {"url": "https://git.kernel.org/stable/c/633593a808980f82d251d0ca89730d8bb8b0220c"}], "title": "sctp: fix kernel-infoleak for SCTP sockets", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.783Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/3fc0fd724d199e061432b66a8d85b7d48fe485f7", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/41a2864cf719c17294f417726edd411643462ab8", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2d8fa3fdf4542a2174a72d92018f488d65d848c5", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/bbf59d7ae558940cfa2b36a287fd1e88d83f89f8", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b7e4d9ba2ddb78801488b4c623875b81fb46b545", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1502f15b9f29c41883a6139f2923523873282a83", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d828b0fe6631f3ae8709ac9a10c77c5836c76a08", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/633593a808980f82d251d0ca89730d8bb8b0220c", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48855", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:25:52.411711Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:08.096Z"}}]}}