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CVE-2024-57857 (GCVE-0-2024-57857)

Vulnerability from cvelistv5 – Published: 2025-01-15 13:10 – Updated: 2026-08-05 11:46
VLAI
Title
RDMA/siw: Remove direct link to net_device
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Remove direct link to net_device Do not manage a per device direct link to net_device. Rely on associated ib_devices net_device management, not doubling the effort locally. A badly managed local link to net_device was causing a 'KASAN: slab-use-after-free' exception during siw_query_port() call.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-13 13:56 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: bdcf26bf9b3acb03c8f90387cfc6474fc8ac5521 , < 4eafeb4f021c50d13f199239d913b37de3c83135 (git)
Affected: bdcf26bf9b3acb03c8f90387cfc6474fc8ac5521 , < 16b87037b48889d21854c8e97aec8a1baf2642b3 (git)
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Linux Linux Affected: 5.3
Unaffected: 0 , < 5.3 (semver)
Unaffected: 6.12.9 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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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\u0027s 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-\u003emax_mtu`/`active_mtu` and `qp_attr-\u003epath_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-\u003esk_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\": \"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\": \"6.12.9\", \"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/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. Rely\\non associated ib_devices net_device management, not doubling\\nthe effort locally. A badly managed local link to net_device\\nwas causing a \u0027KASAN: slab-use-after-free\u0027 exception during\\nsiw_query_port() call.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"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\": \"2026-08-05T11:46:42.275Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-57857\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:46:42.275Z\", \"dateReserved\": \"2025-01-15T13:08:59.681Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-01-15T13:10:28.613Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.