{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53028", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-03-27T16:40:15.756Z", "datePublished": "2025-03-27T16:43:57.568Z", "dateUpdated": "2026-08-05T09:12:26.198Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:12:26.198Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"wifi: mac80211: fix memory leak in ieee80211_if_add()\"\n\nThis reverts commit 13e5afd3d773c6fc6ca2b89027befaaaa1ea7293.\n\nieee80211_if_free() is already called from free_netdev(ndev)\nbecause ndev->priv_destructor == ieee80211_if_free\n\nsyzbot reported:\n\ngeneral protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]\nCPU: 0 PID: 10041 Comm: syz-executor.0 Not tainted 6.2.0-rc2-syzkaller-00388-g55b98837e37d #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\nRIP: 0010:pcpu_get_page_chunk mm/percpu.c:262 [inline]\nRIP: 0010:pcpu_chunk_addr_search mm/percpu.c:1619 [inline]\nRIP: 0010:free_percpu mm/percpu.c:2271 [inline]\nRIP: 0010:free_percpu+0x186/0x10f0 mm/percpu.c:2254\nCode: 80 3c 02 00 0f 85 f5 0e 00 00 48 8b 3b 48 01 ef e8 cf b3 0b 00 48 ba 00 00 00 00 00 fc ff df 48 8d 78 20 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 3b 0e 00 00 48 8b 58 20 48 b8 00 00 00 00 00 fc\nRSP: 0018:ffffc90004ba7068 EFLAGS: 00010002\nRAX: 0000000000000000 RBX: ffff88823ffe2b80 RCX: 0000000000000004\nRDX: dffffc0000000000 RSI: ffffffff81c1f4e7 RDI: 0000000000000020\nRBP: ffffe8fffe8fc220 R08: 0000000000000005 R09: 0000000000000000\nR10: 0000000000000000 R11: 1ffffffff2179ab2 R12: ffff8880b983d000\nR13: 0000000000000003 R14: 0000607f450fc220 R15: ffff88823ffe2988\nFS: 00007fcb349de700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000001b32220000 CR3: 000000004914f000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\nnetdev_run_todo+0x6bf/0x1100 net/core/dev.c:10352\nieee80211_register_hw+0x2663/0x4040 net/mac80211/main.c:1411\nmac80211_hwsim_new_radio+0x2537/0x4d80 drivers/net/wireless/mac80211_hwsim.c:4583\nhwsim_new_radio_nl+0xa09/0x10f0 drivers/net/wireless/mac80211_hwsim.c:5176\ngenl_family_rcv_msg_doit.isra.0+0x1e6/0x2d0 net/netlink/genetlink.c:968\ngenl_family_rcv_msg net/netlink/genetlink.c:1048 [inline]\ngenl_rcv_msg+0x4ff/0x7e0 net/netlink/genetlink.c:1065\nnetlink_rcv_skb+0x165/0x440 net/netlink/af_netlink.c:2564\ngenl_rcv+0x28/0x40 net/netlink/genetlink.c:1076\nnetlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline]\nnetlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1356\nnetlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1932\nsock_sendmsg_nosec net/socket.c:714 [inline]\nsock_sendmsg+0xd3/0x120 net/socket.c:734\n____sys_sendmsg+0x712/0x8c0 net/socket.c:2476\n___sys_sendmsg+0x110/0x1b0 net/socket.c:2530\n__sys_sendmsg+0xf7/0x1c0 net/socket.c:2559\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The bug is reached only through local netlink (nl80211 NEW_INTERFACE or hwsim NEW_RADIO → ieee80211_if_add), not by processing over-the-air WiFi frames or remote packets.\nAC:L - An attacker who can add interfaces can force cfg80211_register_netdevice/register_netdevice to fail (e.g. -ENOMEM from inetdev_init/ipv6_add_dev or kobject registration under attacker-induced memory pressure), which deterministically hits the double-free path.\nPR:L - Both nl80211 NEW_INTERFACE and HWSIM_CMD_NEW_RADIO use GENL_UNS_ADMIN_PERM (CAP_NET_ADMIN in the socket's user_ns), which an unprivileged user can obtain via user+network namespaces (unshare -Urn), including with mac80211_hwsim radios created in that netns.\nUI:N - The attacker triggers interface creation and the failing registration path entirely with their own netlink messages; no separate victim action is required.\nS:U - A successful exploit corrupts host kernel percpu/heap state within the same kernel authority and does not cross a VM, IOMMU, or other security boundary.\nC:H - ieee80211_if_free() frees tstats without clearing the pointer, so the later priv_destructor call is a true percpu double-free; the window before netdev_run_todo allows reclaim, enabling classic UAF read primitives.\nI:H - The same dangling tstats double-free corrupts the percpu allocator and can free a reallocated object, yielding heap corruption suitable for arbitrary write or control-flow hijacking under kernel double-free/UAF guidance.\nA:H - The double-free reliably oopses in free_percpu (as in the syzbot GPF/null-ptr-deref in netdev_run_todo), producing a full kernel crash even without a complete exploit." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/mac80211/iface.c" ], "versions": [ { "version": "b2c0b94f48373ee743a4d63825a9d52364418837", "lessThan": "71e5cd1018d345e649e63f74a56c1897f99db7e9", "status": "affected", "versionType": "git" }, { "version": "2e32f1299814e8aa2e75aa58704543a36ea3e201", "lessThan": "982c8b1e95c088f5d8f65967ec25be66e961401c", "status": "affected", "versionType": "git" }, { "version": "9a50a7f64243bd21a84353c371f3977b9ffd9fa5", "lessThan": "effecd8d116d3d3a28b4f628e61bba8d318fdfcf", "status": "affected", "versionType": "git" }, { "version": "13e5afd3d773c6fc6ca2b89027befaaaa1ea7293", "lessThan": "80f8a66dede0a4b4e9e846765a97809c6fe49ce5", "status": "affected", "versionType": "git" }, { "version": "147537737a3c83e07a5295de38424c21d354d2a4", "status": "affected", "versionType": "git" }, { "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/mac80211/iface.c" ], "versions": [ { "version": "5.10.163", "lessThan": "5.10.165", "status": "affected", "versionType": "semver" }, { "version": "5.15.86", "lessThan": "5.15.90", "status": "affected", "versionType": "semver" }, { "version": "6.1.2", "lessThan": "6.1.8", "status": "affected", "versionType": "semver" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.163", "versionEndExcluding": "5.10.165" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.86", "versionEndExcluding": "5.15.90" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.2", "versionEndExcluding": "6.1.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/71e5cd1018d345e649e63f74a56c1897f99db7e9" }, { "url": "https://git.kernel.org/stable/c/982c8b1e95c088f5d8f65967ec25be66e961401c" }, { "url": "https://git.kernel.org/stable/c/effecd8d116d3d3a28b4f628e61bba8d318fdfcf" }, { "url": "https://git.kernel.org/stable/c/80f8a66dede0a4b4e9e846765a97809c6fe49ce5" } ], "title": "Revert \"wifi: mac80211: fix memory leak in ieee80211_if_add()\"", "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": "2025-10-01T17:18:24.516551Z", "id": "CVE-2023-53028", "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": "2025-10-01T17:18:27.257Z" } } ] } }