{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53365", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-17T14:54:09.733Z", "datePublished": "2025-09-17T14:56:53.781Z", "dateUpdated": "2026-05-11T19:43:32.333Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:43:32.333Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6mr: Fix skb_under_panic in ip6mr_cache_report()\n\nskbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4\n head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg\n ------------[ cut here ]------------\n kernel BUG at net/core/skbuff.c:192!\n invalid opcode: 0000 [#1] PREEMPT SMP KASAN\n CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n Workqueue: ipv6_addrconf addrconf_dad_work\n RIP: 0010:skb_panic+0x152/0x1d0\n Call Trace:\n \n skb_push+0xc4/0xe0\n ip6mr_cache_report+0xd69/0x19b0\n reg_vif_xmit+0x406/0x690\n dev_hard_start_xmit+0x17e/0x6e0\n __dev_queue_xmit+0x2d6a/0x3d20\n vlan_dev_hard_start_xmit+0x3ab/0x5c0\n dev_hard_start_xmit+0x17e/0x6e0\n __dev_queue_xmit+0x2d6a/0x3d20\n neigh_connected_output+0x3ed/0x570\n ip6_finish_output2+0x5b5/0x1950\n ip6_finish_output+0x693/0x11c0\n ip6_output+0x24b/0x880\n NF_HOOK.constprop.0+0xfd/0x530\n ndisc_send_skb+0x9db/0x1400\n ndisc_send_rs+0x12a/0x6c0\n addrconf_dad_completed+0x3c9/0xea0\n addrconf_dad_work+0x849/0x1420\n process_one_work+0xa22/0x16e0\n worker_thread+0x679/0x10c0\n ret_from_fork+0x28/0x60\n ret_from_fork_asm+0x11/0x20\n\nWhen setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit().\nreg_vif_xmit()\n ip6mr_cache_report()\n skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4\nAnd skb_push declared as:\n\tvoid *skb_push(struct sk_buff *skb, unsigned int len);\n\t\tskb->data -= len;\n\t\t//0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850\nskb->data is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/ipv6/ip6mr.c" ], "versions": [ { "version": "14fb64e1f449ef6666f1c3a3fa4e13aec669b98d", "lessThan": "a96d74d1076c82a4cef02c150d9996b21354c78d", "status": "affected", "versionType": "git" }, { "version": "14fb64e1f449ef6666f1c3a3fa4e13aec669b98d", "lessThan": "8382e7ed2d63e6c2daf6881fa091526dc6c879cd", "status": "affected", "versionType": "git" }, { "version": "14fb64e1f449ef6666f1c3a3fa4e13aec669b98d", "lessThan": "0438e60a00d4e335b3c36397dbf26c74b5d13ef0", "status": "affected", "versionType": "git" }, { "version": "14fb64e1f449ef6666f1c3a3fa4e13aec669b98d", "lessThan": "1683124129a4263dd5bce2475bab110e95fa0346", "status": "affected", "versionType": "git" }, { "version": "14fb64e1f449ef6666f1c3a3fa4e13aec669b98d", "lessThan": "1bb54a21f4d9b88442f8c3307c780e2db64417e4", "status": "affected", "versionType": "git" }, { "version": "14fb64e1f449ef6666f1c3a3fa4e13aec669b98d", "lessThan": "691a09eecad97e745b9aa0e3918db46d020bdacb", "status": "affected", "versionType": "git" }, { "version": "14fb64e1f449ef6666f1c3a3fa4e13aec669b98d", "lessThan": "3326c711f18d18fe6e1f5d83d3a7eab07e5a1560", "status": "affected", "versionType": "git" }, { "version": "14fb64e1f449ef6666f1c3a3fa4e13aec669b98d", "lessThan": "30e0191b16e8a58e4620fa3e2839ddc7b9d4281c", "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/ipv6/ip6mr.c" ], "versions": [ { "version": "2.6.26", "status": "affected" }, { "version": "0", "lessThan": "2.6.26", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.322", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.291", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.253", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.190", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.126", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.45", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.4.10", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.5", "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": "2.6.26", "versionEndExcluding": "4.14.322" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "4.19.291" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "5.4.253" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "5.10.190" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "5.15.126" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "6.1.45" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "6.4.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "6.5" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a96d74d1076c82a4cef02c150d9996b21354c78d" }, { "url": "https://git.kernel.org/stable/c/8382e7ed2d63e6c2daf6881fa091526dc6c879cd" }, { "url": "https://git.kernel.org/stable/c/0438e60a00d4e335b3c36397dbf26c74b5d13ef0" }, { "url": "https://git.kernel.org/stable/c/1683124129a4263dd5bce2475bab110e95fa0346" }, { "url": "https://git.kernel.org/stable/c/1bb54a21f4d9b88442f8c3307c780e2db64417e4" }, { "url": "https://git.kernel.org/stable/c/691a09eecad97e745b9aa0e3918db46d020bdacb" }, { "url": "https://git.kernel.org/stable/c/3326c711f18d18fe6e1f5d83d3a7eab07e5a1560" }, { "url": "https://git.kernel.org/stable/c/30e0191b16e8a58e4620fa3e2839ddc7b9d4281c" } ], "title": "ip6mr: Fix skb_under_panic in ip6mr_cache_report()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "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": { "id": "CVE-2023-53365", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2026-01-14T18:45:20.470480Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T18:53:01.715Z" } } ] } }