{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-54310", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:44.530Z", "datePublished": "2025-12-30T12:23:42.509Z", "dateUpdated": "2026-08-05T09:19:10.783Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:19:10.783Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: message: mptlan: Fix use after free bug in mptlan_remove() due to race condition\n\nmptlan_probe() calls mpt_register_lan_device() which initializes the\n&priv->post_buckets_task workqueue. A call to\nmpt_lan_wake_post_buckets_task() will subsequently start the work.\n\nDuring driver unload in mptlan_remove() the following race may occur:\n\nCPU0 CPU1\n\n |mpt_lan_post_receive_buckets_work()\nmptlan_remove() |\n free_netdev() |\n kfree(dev); |\n |\n | dev->mtu\n | //use\n\nFix this by finishing the work prior to cleaning up in mptlan_remove().\n\n[mkp: we really should remove mptlan instead of attempting to fix it]" } ], "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 freeing side of the race is only reachable through local actions — module unload of mptlan/mptfc, or a sysfs PCI remove/unbind on the Fusion adapter — so the attacker must have local system access. A remote Fibre Channel peer can keep the post_buckets work armed but cannot itself trigger free_netdev().\nAC:L - The attacker controls both sides of the race: driving traffic on the fc0 IP-over-FC interface keeps priv->post_buckets_task continuously scheduled (rearmed on every receive once buckets fall below priv->bucketthresh), while the attacker separately chooses the moment of driver removal, and the attempt is freely repeatable across probe/remove cycles.\nPR:L - Consistent with how this subsystem class is scored, a local user account is treated as sufficient to reach the driver teardown path and to generate the interface traffic that arms the work item; no separately-authenticated or hardware-privileged role is needed to influence the racing side.\nUI:N - No victim action is required — the attacker performs both the traffic generation that schedules the work and the driver-removal that frees the net_device.\nS:U - The use-after-free corrupts kernel heap memory and is exploited within the kernel's own security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The work function dereferences the freed allocation extensively (priv->dev, dev->mtu, dev->hard_header_len, priv->mpt_dev, priv->RcvCtl[], priv->mpt_rxfidx[]), so an attacker who reclaims the slab controls what is read and can leak kernel memory contents, including DMA addresses and skb pointers.\nI:H - Beyond reading, mpt_lan_post_receive_buckets() writes into the freed object (priv->RcvCtl[ctx].skb/dma/len, priv->mpt_rxfidx[], the buckets_out atomic) and programs attacker-influenced addresses and lengths into HBA DMA scatter-gather entries, giving a controlled write primitive suitable for control-flow hijacking.\nA:H - The use-after-free reliably oopses or panics the kernel when the freed net_device slab has been reused, and the bogus dma_map_single()/DMA descriptor programming can additionally wedge the storage adapter." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/message/fusion/mptlan.c" ], "versions": [ { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "92f869693d84e813895ff4d25363744575515423", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "60c8645ad6f5b722615383d595d63b62b07a13c3", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "410e610a96c52a7b41e2ab6c9ca60868d9acecce", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "697f92f8317e538d8409a0c95d6370eb40b34c05", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "e84282efc87f2414839f6e15c31b4daa34ebaac1", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "9c6da3b7f12528cd52c458b33496a098b838fcfc", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "48daa4a3015d859ee424948844ce3c12f2fe44e6", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "f486893288f3e9b171b836f43853a6426515d800", "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/message/fusion/mptlan.c" ], "versions": [ { "version": "2.6.12", "status": "affected" }, { "version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.316", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.284", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.244", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.181", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.113", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.30", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.3.4", "lessThanOrEqual": "6.3.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.4", "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": "2.6.12", "versionEndExcluding": "4.14.316" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "4.19.284" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.4.244" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.10.181" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.15.113" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.1.30" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.3.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.4" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/92f869693d84e813895ff4d25363744575515423" }, { "url": "https://git.kernel.org/stable/c/60c8645ad6f5b722615383d595d63b62b07a13c3" }, { "url": "https://git.kernel.org/stable/c/410e610a96c52a7b41e2ab6c9ca60868d9acecce" }, { "url": "https://git.kernel.org/stable/c/697f92f8317e538d8409a0c95d6370eb40b34c05" }, { "url": "https://git.kernel.org/stable/c/e84282efc87f2414839f6e15c31b4daa34ebaac1" }, { "url": "https://git.kernel.org/stable/c/9c6da3b7f12528cd52c458b33496a098b838fcfc" }, { "url": "https://git.kernel.org/stable/c/48daa4a3015d859ee424948844ce3c12f2fe44e6" }, { "url": "https://git.kernel.org/stable/c/f486893288f3e9b171b836f43853a6426515d800" } ], "title": "scsi: message: mptlan: Fix use after free bug in mptlan_remove() due to race condition", "x_generator": { "engine": "bippy-1.2.0" } } } }