CVE-2024-45019

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This patch adds it back but at a later point (when calling\nmlx5e_safe_reopen_channels()) to avoid the deadlock referenced in the\nFixes tag."}], "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 defect is a missing mutex in the mlx5e driver's local error-recovery path; the racing accesses come from local interfaces (`ndo_get_stats64` via /proc/net/dev, ip -s link, ethtool/netlink stats) rather than from parsing remote data. No remote peer input reaches the vulnerable function.\nAC:L - No lock is taken at all, and the unprotected window spans a full channel teardown/rebuild (firmware commands plus synchronize_net()), so the attacker-controlled side of the race \u2014 continuously requeuing `mlx5e_update_stats_work()` by looping on unprivileged stats reads \u2014 hits it reliably rather than depending on a narrow timing window.\nPR:L - Driving the racing `state_lock` holder requires only an unprivileged local account: `mlx5e_get_stats()` queues `mlx5e_update_stats_work()` and is reachable from `cat /proc/net/dev`, `ip -s link`, or `/sys/class/net/*/statistics/*` with no capability check.\nUI:N - The recovery work runs from a kernel workqueue and the stats path is driven entirely by the attacker's own reads; no victim action is required.\nS:U - The corrupted objects (`priv->channels`, `mlx5e_channel`, `mlx5e_selq`) all belong to the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `mlx5e_close_channels()` kvfree()s each channel and kfree()s the `chs->c` array while the concurrent stats worker still dereferences them, giving a use-after-free read of slab memory that the attacker can groom (the same path immediately reallocates channels), which can be leveraged to disclose kernel memory.\nI:H - The same use-after-free on freed and reallocated channel/SQ/RQ objects yields attacker-influenceable pointer dereferences, and the unsynchronized `mlx5e_selq_prepare_params()`/`mlx5e_selq_apply()` sequence can publish inconsistent queue-selection parameters \u2014 both are exploitable for memory corruption.\nA:H - The race reliably produces a use-after-free/inconsistent `priv->channels` state leading to an oops or NIC-recovery failure (plus lockdep/WARN splats), taking down the network device and potentially the machine."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c"], "versions": [{"version": "514232495aa523641febaa58b687fe6df1cd0b73", "lessThan": "03d3734bd692affe4d0e9c9d638f491aaf37411b", "status": "affected", "versionType": "git"}, {"version": "8ce3d969348a7c7fa3469588eb1319f9f3cc0eaa", "lessThan": "b3b9a87adee97854bcd71057901d46943076267e", "status": "affected", "versionType": "git"}, {"version": "eab0da38912ebdad922ed0388209f7eb0a5163cd", "lessThan": "8e57e66ecbdd2fddc9fbf3e984b1c523b70e9809", "status": "affected", "versionType": "git"}, {"version": "eab0da38912ebdad922ed0388209f7eb0a5163cd", "lessThan": "e6b5afd30b99b43682a7764e1a74a42fe4d5f4b3", "status": "affected", "versionType": "git"}, {"version": "6.1.69", "lessThan": "6.1.107", "status": "affected", "versionType": "semver"}, {"version": "6.6.8", "lessThan": "6.6.48", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c"], "versions": [{"version": "6.7", "status": "affected"}, {"version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.107", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.48", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.7", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "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": "6.1.69", "versionEndExcluding": "6.1.107"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.8", "versionEndExcluding": "6.6.48"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.10.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/03d3734bd692affe4d0e9c9d638f491aaf37411b"}, {"url": "https://git.kernel.org/stable/c/b3b9a87adee97854bcd71057901d46943076267e"}, {"url": "https://git.kernel.org/stable/c/8e57e66ecbdd2fddc9fbf3e984b1c523b70e9809"}, {"url": "https://git.kernel.org/stable/c/e6b5afd30b99b43682a7764e1a74a42fe4d5f4b3"}], "title": "net/mlx5e: Take state lock during tx timeout reporter", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-29T15:48:31.371644Z", "id": "CVE-2024-45019", "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": "2024-09-29T15:48:46.673Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:15:26.924Z"}}]}}

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Este parche lo vuelve a agregar, pero en un momento posterior (al llamar a mlx5e_safe_reopen_channels()) para evitar el bloqueo al que se hace referencia en la etiqueta Fixes."}], "id": "CVE-2024-45019", "lastModified": "2026-08-04T11:20:11.113", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-45019", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-29T15:48:31.371644Z", "version": "2.0.3"}}]}, "published": "2024-09-11T16:15:06.990", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/03d3734bd692affe4d0e9c9d638f491aaf37411b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8e57e66ecbdd2fddc9fbf3e984b1c523b70e9809"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b3b9a87adee97854bcd71057901d46943076267e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e6b5afd30b99b43682a7764e1a74a42fe4d5f4b3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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{}