CVE-2024-57857

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A badly managed local link to net_device\nwas causing a 'KASAN: slab-use-after-free' exception during\nsiw_query_port() call."}], "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 dangling `sdev->netdev` is only dereferenced from local paths \u2014 sysfs port attribute reads, NETLINK_RDMA `PORT_GET`, uverbs `query_port`/`query_qp`, `rdma_listen()`, and the in-kernel ib_cache work triggered by local netdev teardown. No remote peer data or received packet reaches these sites.\nAC:L - The attacker drives both sides of the race \u2014 generating port events (netdev up/down/changeaddr) that queue the `ib_cache_event_task`, and tearing down the netdev/netns that frees the `net_device` \u2014 and can repeat the sequence indefinitely while spamming `query_port` via sysfs/netlink, so the window is reachable on demand (syzbot reproduced it).\nPR:L - The code that dereferences the freed pointer is reachable with zero privileges (world-readable `/sys/class/infiniband/*/ports/1/state`, unprivileged `RDMA_NLDEV_CMD_PORT_GET`, `ibv_query_port`), and the netdev-teardown side needs only `CAP_NET_ADMIN` within a network namespace, which an unprivileged user obtains via `unshare -Urn`; no real root in the initial namespace is required to reach the vulnerable dereference.\nUI:N - No victim action is needed \u2014 the attacker performs the device/netdev teardown and the query itself, or simply races the kernel's own asynchronous cache-update work.\nS:U - The use-after-free is confined to kernel memory within the same security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - This is a use-after-free read of a freed `struct net_device` slab object whose contents can be groomed by the attacker, and the read values are returned to userspace through `attr->max_mtu`/`active_mtu` and `qp_attr->path_mtu`, giving a controllable read of reclaimed kernel memory.\nI:H - Per use-after-free handling, the dangling pointer is not merely read but its contents feed kernel state \u2014 `siw_create_listen()` writes freed memory into `sk->sk_bound_dev_if` \u2014 and a UAF on a sprayable slab object is the standard primitive for heap grooming and control-flow corruption.\nA:H - The confirmed outcome is a KASAN slab-use-after-free during `siw_query_port()`; dereferencing a stale `net_device` pointer into reclaimed or unmapped memory oopses/panics the kernel, and the trigger can be repeated at will."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/sw/siw/siw.h", "drivers/infiniband/sw/siw/siw_cm.c", "drivers/infiniband/sw/siw/siw_main.c", "drivers/infiniband/sw/siw/siw_verbs.c"], "versions": [{"version": "bdcf26bf9b3acb03c8f90387cfc6474fc8ac5521", "lessThan": "6a97bfc0293db234ac6ec32f6a32bd6702191a95", "status": "affected", "versionType": "git"}, {"version": "bdcf26bf9b3acb03c8f90387cfc6474fc8ac5521", "lessThan": "4eafeb4f021c50d13f199239d913b37de3c83135", "status": "affected", "versionType": "git"}, {"version": "bdcf26bf9b3acb03c8f90387cfc6474fc8ac5521", "lessThan": "16b87037b48889d21854c8e97aec8a1baf2642b3", "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/infiniband/sw/siw/siw.h", "drivers/infiniband/sw/siw/siw_cm.c", "drivers/infiniband/sw/siw/siw_main.c", "drivers/infiniband/sw/siw/siw_verbs.c"], "versions": [{"version": "5.3", "status": "affected"}, {"version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.9", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13", "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": "5.3", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.12.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6a97bfc0293db234ac6ec32f6a32bd6702191a95"}, {"url": "https://git.kernel.org/stable/c/4eafeb4f021c50d13f199239d913b37de3c83135"}, {"url": "https://git.kernel.org/stable/c/16b87037b48889d21854c8e97aec8a1baf2642b3"}], "title": "RDMA/siw: Remove direct link to net_device", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-57857", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-02-13T13:56:36.478008Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-13T14:04:27.319Z"}}]}}

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No remote peer data or received packet reaches these sites.\nAC:L - The attacker drives both sides of the race \u2014 generating port events (netdev up/down/changeaddr) that queue the `ib_cache_event_task`, and tearing down the netdev/netns that frees the `net_device` \u2014 and can repeat the sequence indefinitely while spamming `query_port` via sysfs/netlink, so the window is reachable on demand (syzbot reproduced it).\nPR:L - The code that dereferences the freed pointer is reachable with zero privileges (world-readable `/sys/class/infiniband/*/ports/1/state`, unprivileged `RDMA_NLDEV_CMD_PORT_GET`, `ibv_query_port`), and the netdev-teardown side needs only `CAP_NET_ADMIN` within a network namespace, which an unprivileged user obtains via `unshare -Urn`; no real root in the initial namespace is required to reach the vulnerable dereference.\nUI:N - No victim action is needed \u2014 the attacker performs the device/netdev teardown and the query itself, or simply races the kernel's own asynchronous cache-update work.\nS:U - The use-after-free is confined to kernel memory within the same security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - This is a use-after-free read of a freed `struct net_device` slab object whose contents can be groomed by the attacker, and the read values are returned to userspace through `attr->max_mtu`/`active_mtu` and `qp_attr->path_mtu`, giving a controllable read of reclaimed kernel memory.\nI:H - Per use-after-free handling, the dangling pointer is not merely read but its contents feed kernel state \u2014 `siw_create_listen()` writes freed memory into `sk->sk_bound_dev_if` \u2014 and a UAF on a sprayable slab object is the standard primitive for heap grooming and control-flow corruption.\nA:H - The confirmed outcome is a KASAN slab-use-after-free during `siw_query_port()`; dereferencing a stale `net_device` pointer into reclaimed or unmapped memory oopses/panics the kernel, and the trigger can be repeated at will."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "bdcf26bf9b3acb03c8f90387cfc6474fc8ac5521", "lessThan": "6a97bfc0293db234ac6ec32f6a32bd6702191a95", "versionType": "git"}, {"status": "affected", "version": "bdcf26bf9b3acb03c8f90387cfc6474fc8ac5521", "lessThan": "4eafeb4f021c50d13f199239d913b37de3c83135", "versionType": "git"}, {"status": "affected", "version": "bdcf26bf9b3acb03c8f90387cfc6474fc8ac5521", "lessThan": "16b87037b48889d21854c8e97aec8a1baf2642b3", "versionType": "git"}], "programFiles": ["drivers/infiniband/sw/siw/siw.h", "drivers/infiniband/sw/siw/siw_cm.c", "drivers/infiniband/sw/siw/siw_main.c", "drivers/infiniband/sw/siw/siw_verbs.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.3"}, {"status": "unaffected", "version": "0", "lessThan": "5.3", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.160", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.9", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/infiniband/sw/siw/siw.h", "drivers/infiniband/sw/siw/siw_cm.c", "drivers/infiniband/sw/siw/siw_main.c", "drivers/infiniband/sw/siw/siw_verbs.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/6a97bfc0293db234ac6ec32f6a32bd6702191a95"}, {"url": "https://git.kernel.org/stable/c/4eafeb4f021c50d13f199239d913b37de3c83135"}, {"url": "https://git.kernel.org/stable/c/16b87037b48889d21854c8e97aec8a1baf2642b3"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Remove direct link to net_device\n\nDo not manage a per device direct link to net_device. 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A badly managed local link to net_device\nwas causing a 'KASAN: slab-use-after-free' exception during\nsiw_query_port() call."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.160", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.9", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.13", "versionStartIncluding": "5.3"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:35:43.075Z"}}}, "cveMetadata": {"cveId": "CVE-2024-57857", "state": "PUBLISHED", "dateUpdated": "2026-10-21T12:35:43.075Z", "dateReserved": "2025-01-15T13:08:59.681Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-01-15T13:10:28.613Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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Rely\non associated ib_devices net_device management, not doubling\nthe effort locally. A badly managed local link to net_device\nwas causing a 'KASAN: slab-use-after-free' exception during\nsiw_query_port() call."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/siw: eliminar el enlace directo a net_device No administrar un enlace directo por dispositivo a net_device. Conf\u00ede en la administraci\u00f3n de net_device de ib_devices asociada, sin duplicar el esfuerzo localmente. Un enlace local mal administrado a net_device estaba causando una excepci\u00f3n 'KASAN: slab-use-after-free' durante la llamada siw_query_port()."}], "id": "CVE-2024-57857", "lastModified": "2026-10-21T13:17:52.950", "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": 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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-57857", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-02-13T13:56:36.478008Z", "version": "2.0.3"}}]}, "published": "2025-01-15T13:15:12.403", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/16b87037b48889d21854c8e97aec8a1baf2642b3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4eafeb4f021c50d13f199239d913b37de3c83135"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6a97bfc0293db234ac6ec32f6a32bd6702191a95"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: RDMA/siw: Remove direct link to net_device", "id": "2338187", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2338187"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nRDMA/siw: Remove direct link to net_device\nDo not manage a per device direct link to net_device. Rely\non associated ib_devices net_device management, not doubling\nthe effort locally. A badly managed local link to net_device\nwas causing a 'KASAN: slab-use-after-free' exception during\nsiw_query_port() call."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-57857", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-01-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-57857\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-57857\nhttps://lore.kernel.org/linux-cve-announce/2025011534-CVE-2024-57857-29db@gregkh/T"], "statement": "The bug is in software RDMA over TCP/IP (iWARP) driver. It is disabled in all versions of the Red Hat Enterprise Linux (and disabled in Fedora), so not actual.", "threat_severity": "Moderate"}

{}