{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-52977", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-03-27T16:40:15.738Z", "datePublished": "2025-03-27T16:43:17.234Z", "dateUpdated": "2026-05-23T15:27:39.583Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:27:39.583Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix flow memory leak in ovs_flow_cmd_new\n\nSyzkaller reports a memory leak of new_flow in ovs_flow_cmd_new() as it is\nnot freed when an allocation of a key fails.\n\nBUG: memory leak\nunreferenced object 0xffff888116668000 (size 632):\n comm \"syz-executor231\", pid 1090, jiffies 4294844701 (age 18.871s)\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [<00000000defa3494>] kmem_cache_zalloc include/linux/slab.h:654 [inline]\n [<00000000defa3494>] ovs_flow_alloc+0x19/0x180 net/openvswitch/flow_table.c:77\n [<00000000c67d8873>] ovs_flow_cmd_new+0x1de/0xd40 net/openvswitch/datapath.c:957\n [<0000000010a539a8>] genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739\n [<00000000dff3302d>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]\n [<00000000dff3302d>] genl_rcv_msg+0x328/0x590 net/netlink/genetlink.c:800\n [<000000000286dd87>] netlink_rcv_skb+0x153/0x430 net/netlink/af_netlink.c:2515\n [<0000000061fed410>] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811\n [<000000009dc0f111>] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]\n [<000000009dc0f111>] netlink_unicast+0x545/0x7f0 net/netlink/af_netlink.c:1339\n [<000000004a5ee816>] netlink_sendmsg+0x8e7/0xde0 net/netlink/af_netlink.c:1934\n [<00000000482b476f>] sock_sendmsg_nosec net/socket.c:651 [inline]\n [<00000000482b476f>] sock_sendmsg+0x152/0x190 net/socket.c:671\n [<00000000698574ba>] ____sys_sendmsg+0x70a/0x870 net/socket.c:2356\n [<00000000d28d9e11>] ___sys_sendmsg+0xf3/0x170 net/socket.c:2410\n [<0000000083ba9120>] __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439\n [<00000000c00628f8>] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46\n [<000000004abfdcf4>] entry_SYSCALL_64_after_hwframe+0x61/0xc6\n\nTo fix this the patch rearranges the goto labels to reflect the order of\nobject allocations and adds appropriate goto statements on the error\npaths.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/openvswitch/datapath.c" ], "versions": [ { "version": "655e873bf528f0f46ce6b069f9a2daee9621197c", "lessThan": "1ac653cf886cdfc082708c82dc6ac6115cebd2ee", "status": "affected", "versionType": "git" }, { "version": "ee27d70556a47c3a07e65a60f47e3ea12a255af8", "lessThan": "af4e720bc00a2653f7b9df21755b9978b3d7f386", "status": "affected", "versionType": "git" }, { "version": "8b74211bf60b3e0c0ed4fe3d16c92ffdcaaf34eb", "lessThan": "ed6c5e8caf55778500202775167e8ccdb1a030cb", "status": "affected", "versionType": "git" }, { "version": "6736b61ecf230dd656464de0f514bdeadb384f20", "lessThan": "70154489f531587996f3e9d7cceeee65cff0001d", "status": "affected", "versionType": "git" }, { "version": "0133615a06007684df648feb9d327714e399afd4", "lessThan": "f423c2efd51d7eb1d143c2be7eea233241d9bbbf", "status": "affected", "versionType": "git" }, { "version": "32d5fa5bdccec2361fc6c4ed05a7367155b3a1e9", "lessThan": "70d40674a549d498bd63d5432acf46205da1534b", "status": "affected", "versionType": "git" }, { "version": "68bb10101e6b0a6bb44e9c908ef795fc4af99eae", "lessThan": "0c598aed445eb45b0ee7ba405f7ece99ee349c30", "status": "affected", "versionType": "git" }, { "version": "4f592e712ea2132f511d545954867d7880df5be2", "status": "affected", "versionType": "git" }, { "version": "a991a411c3e21ef22507400dbb179ae02029d42c", "status": "affected", "versionType": "git" }, { "version": "4.9.337", "lessThan": "4.10", "status": "affected", "versionType": "semver" }, { "version": "6.0.16", "lessThan": "6.1", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/openvswitch/datapath.c" ], "versions": [ { "version": "4.14.303", "lessThan": "4.14.306", "status": "affected", "versionType": "semver" }, { "version": "4.19.270", "lessThan": "4.19.273", "status": "affected", "versionType": "semver" }, { "version": "5.4.229", "lessThan": "5.4.232", "status": "affected", "versionType": "semver" }, { "version": "5.10.163", "lessThan": "5.10.168", "status": "affected", "versionType": "semver" }, { "version": "5.15.86", "lessThan": "5.15.93", "status": "affected", "versionType": "semver" }, { "version": "6.1.2", "lessThan": "6.1.11", "status": "affected", "versionType": "semver" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.303", "versionEndExcluding": "4.14.306" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.270", "versionEndExcluding": "4.19.273" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.229", "versionEndExcluding": "5.4.232" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.163", "versionEndExcluding": "5.10.168" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.86", "versionEndExcluding": "5.15.93" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.2", "versionEndExcluding": "6.1.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.337" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/1ac653cf886cdfc082708c82dc6ac6115cebd2ee" }, { "url": "https://git.kernel.org/stable/c/af4e720bc00a2653f7b9df21755b9978b3d7f386" }, { "url": "https://git.kernel.org/stable/c/ed6c5e8caf55778500202775167e8ccdb1a030cb" }, { "url": "https://git.kernel.org/stable/c/70154489f531587996f3e9d7cceeee65cff0001d" }, { "url": "https://git.kernel.org/stable/c/f423c2efd51d7eb1d143c2be7eea233241d9bbbf" }, { "url": "https://git.kernel.org/stable/c/70d40674a549d498bd63d5432acf46205da1534b" }, { "url": "https://git.kernel.org/stable/c/0c598aed445eb45b0ee7ba405f7ece99ee349c30" } ], "title": "net: openvswitch: fix flow memory leak in ovs_flow_cmd_new", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-401", "lang": "en", "description": "CWE-401 Missing Release of Memory after Effective Lifetime" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2025-10-01T17:21:57.463878Z", "id": "CVE-2023-52977", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T17:21:59.721Z" } } ] } }