{ "dataType": "CVE_RECORD", "cveMetadata": { "cveId": "CVE-2024-26898", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.186Z", "datePublished": "2024-04-17T10:27:48.466Z", "dateUpdated": "2026-08-05T11:28:13.796Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:28:13.796Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naoe: fix the potential use-after-free problem in aoecmd_cfg_pkts\n\nThis patch is against CVE-2023-6270. The description of cve is:\n\n A flaw was found in the ATA over Ethernet (AoE) driver in the Linux\n kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on\n `struct net_device`, and a use-after-free can be triggered by racing\n between the free on the struct and the access through the `skbtxq`\n global queue. This could lead to a denial of service condition or\n potential code execution.\n\nIn aoecmd_cfg_pkts(), it always calls dev_put(ifp) when skb initial\ncode is finished. But the net_device ifp will still be used in\nlater tx()->dev_queue_xmit() in kthread. Which means that the\ndev_put(ifp) should NOT be called in the success path of skb\ninitial code in aoecmd_cfg_pkts(). Otherwise tx() may run into\nuse-after-free because the net_device is freed.\n\nThis patch removed the dev_put(ifp) in the success path in\naoecmd_cfg_pkts(), and added dev_put() after skb xmit in tx()." } ], "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 - `aoecmd_cfg_pkts()` is reachable only from `aoecmd_cfg()`, whose callers are the module's 60-second `discover_timer` (drivers/block/aoe/aoemain.c:21), writes to the local char devices `/dev/etherd/discover` and `/dev/etherd/revalidate` (drivers/block/aoe/aoechr.c:74,114), and `aoeblk_release()` on last close of an AoE block device; no inbound AoE frame path (`aoenet_rcv` → `aoecmd_cfg_rsp`) reaches it, so local access is required.\nAC:L - The attacker controls both sides of the race: the queueing side can be driven at will (each `write()` to `/dev/etherd/discover` enumerates every `init_net` netdev and pushes an skb holding an unreferenced `skb->dev` onto the global `skbtxq`, and the kernel timer does it unprompted every 60s), while the window between the erroneous `dev_put(ifp)` and the deferred `dev_queue_xmit(skb)` in the `aoe_tx` kthread is widened arbitrarily by flooding `skbtxq` and loading the CPU; init_net netdev teardown is either directly inducible (e.g. `PPPIOCNEWUNIT`/close on `/dev/ppp`, which carries no capability check) or occurs routinely from container veth churn, VPN teardown and NIC hotplug, so the attack is repeatable until it succeeds.\nPR:L - No capability check exists anywhere on the path — `aoechr_open()` only validates the minor number, and access is gated purely by file permissions on `/dev/etherd/*`, which distro aoetools udev rules grant to the unprivileged `disk` group; an ordinary local user with that access (or with any AoE block device fd, via the `aoeblk_release()` path) can drive discovery, and the periodic timer keeps the vulnerable code executing even with zero attacker action.\nUI:N - The discovery packets are generated by the attacker's own writes or by the driver's automatic one-minute timer, and the freed `net_device` is dereferenced in the `aoe_tx` kthread; no action by any other user is required.\nS:U - The freed `struct net_device` and the code that dereferences it both live in the kernel's own security authority; this is in-kernel memory corruption, not a VM, IOMMU or sandbox boundary crossing.\nC:H - This is a use-after-free on a `struct net_device` whose contents the attacker can reclaim via heap spraying; `tx()` reads `ifp->name` into a `pr_warn()` (leaking freed heap contents to dmesg) and `dev_queue_xmit()` walks `dev->flags`, `dev->_tx`, `dev->num_tx_queues` and `dev->netdev_ops` from the freed object, yielding attacker-steered out-of-bounds reads of kernel memory.\nI:H - `__dev_queue_xmit()` on the freed device loads and calls function pointers (`netdev_ops->ndo_select_queue`, `ndo_start_xmit`, `q->enqueue`) and indexes the `dev->_tx` queue array from reclaimed, attacker-controlled memory, giving a control-flow hijack and out-of-bounds write primitive, not merely a stale read.\nA:H - Even unexploited, transmitting on a freed `net_device` reliably produces a kernel oops or panic in the `aoe_tx` kthread, and the attacker can repeat the trigger indefinitely." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/block/aoe/aoecmd.c", "drivers/block/aoe/aoenet.c" ], "versions": [ { "version": "7562f876cd93800f2f8c89445f2a563590b24e09", "lessThan": "ad80c34944d7175fa1f5c7a55066020002921a99", "status": "affected", "versionType": "git" }, { "version": "7562f876cd93800f2f8c89445f2a563590b24e09", "lessThan": "1a54aa506b3b2f31496731039e49778f54eee881", "status": "affected", "versionType": "git" }, { "version": "7562f876cd93800f2f8c89445f2a563590b24e09", "lessThan": "faf0b4c5e00bb680e8e43ac936df24d3f48c8e65", "status": "affected", "versionType": "git" }, { "version": "7562f876cd93800f2f8c89445f2a563590b24e09", "lessThan": "7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4", "status": "affected", "versionType": "git" }, { "version": "7562f876cd93800f2f8c89445f2a563590b24e09", "lessThan": "74ca3ef68d2f449bc848c0a814cefc487bf755fa", "status": "affected", "versionType": "git" }, { "version": "7562f876cd93800f2f8c89445f2a563590b24e09", "lessThan": "eb48680b0255a9e8a9bdc93d6a55b11c31262e62", "status": "affected", "versionType": "git" }, { "version": "7562f876cd93800f2f8c89445f2a563590b24e09", "lessThan": "079cba4f4e307c69878226fdf5228c20aa1c969c", "status": "affected", "versionType": "git" }, { "version": "7562f876cd93800f2f8c89445f2a563590b24e09", "lessThan": "a16fbb80064634b254520a46395e36b87ca4731e", "status": "affected", "versionType": "git" }, { "version": "7562f876cd93800f2f8c89445f2a563590b24e09", "lessThan": "f98364e926626c678fb4b9004b75cacf92ff0662", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/block/aoe/aoecmd.c", "drivers/block/aoe/aoenet.c" ], "versions": [ { "version": "2.6.22", "status": "affected" }, { "version": "0", "lessThan": "2.6.22", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.311", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.273", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.214", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.153", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.83", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.23", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.7.11", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.8.2", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9", "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": "2.6.22", "versionEndExcluding": "4.19.311" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "5.4.273" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "5.10.214" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "5.15.153" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.1.83" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.6.23" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.7.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.8.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.9" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/ad80c34944d7175fa1f5c7a55066020002921a99" }, { "url": "https://git.kernel.org/stable/c/1a54aa506b3b2f31496731039e49778f54eee881" }, { "url": "https://git.kernel.org/stable/c/faf0b4c5e00bb680e8e43ac936df24d3f48c8e65" }, { "url": "https://git.kernel.org/stable/c/7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4" }, { "url": "https://git.kernel.org/stable/c/74ca3ef68d2f449bc848c0a814cefc487bf755fa" }, { "url": "https://git.kernel.org/stable/c/eb48680b0255a9e8a9bdc93d6a55b11c31262e62" }, { "url": "https://git.kernel.org/stable/c/079cba4f4e307c69878226fdf5228c20aa1c969c" }, { "url": "https://git.kernel.org/stable/c/a16fbb80064634b254520a46395e36b87ca4731e" }, { "url": "https://git.kernel.org/stable/c/f98364e926626c678fb4b9004b75cacf92ff0662" } ], "title": "aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-416", "lang": "en", "description": "CWE-416 Use After Free" } ] } ], "affected": [ { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:2.6.22:-:*:*:*:*:*:*" ], "defaultStatus": "affected", "versions": [ { "version": "2.6.22", "status": "affected" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*" ], "defaultStatus": "unaffected", "versions": [ { "version": "7562f876cd93", "status": "affected", "lessThan": "ad80c34944d7", "versionType": "git" }, { "version": "7562f876cd93", "status": "affected", "lessThan": "1a54aa506b3b", "versionType": "git" }, { "version": "7562f876cd93", "status": "affected", "lessThan": "faf0b4c5e00b", "versionType": "git" }, { "version": "7562f876cd93", "status": "affected", "lessThan": "7dd09fa80b07", "versionType": "git" }, { "version": "7562f876cd93", "status": "affected", "lessThan": "74ca3ef68d2f", "versionType": "git" }, { "version": "7562f876cd93", "status": "affected", "lessThan": "eb48680b0255", "versionType": "git" }, { "version": "7562f876cd93", 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"url": "https://git.kernel.org/stable/c/079cba4f4e307c69878226fdf5228c20aa1c969c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/a16fbb80064634b254520a46395e36b87ca4731e", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/f98364e926626c678fb4b9004b75cacf92ff0662", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "tags": [ "x_transferred" ] } ] }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-05-12T11:50:22.149Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.0", "lessThan": "V3.1.5", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.0", "lessThan": "V3.1.5", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.0", "lessThan": "V3.1.5", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.0", "lessThan": "V3.1.5", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.0", "lessThan": "V3.1.5", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html" }, { "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html" } ] } ] }, "dataVersion": "5.2" }