fkie_cve-2024-50169
Vulnerability from fkie_nvd
Published
2024-11-07 10:15
Modified
2024-11-22 16:58
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
vsock: Update rx_bytes on read_skb()
Make sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt()
calls are balanced (i.e. virtio_vsock_sock::rx_bytes doesn't lie) after
vsock_transport::read_skb().
While here, also inform the peer that we've freed up space and it has more
credit.
Failing to update rx_bytes after packet is dequeued leads to a warning on
SOCK_STREAM recv():
[ 233.396654] rx_queue is empty, but rx_bytes is non-zero
[ 233.396702] WARNING: CPU: 11 PID: 40601 at net/vmw_vsock/virtio_transport_common.c:589
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * | |
linux | linux_kernel | * | |
linux | linux_kernel | 6.12 | |
linux | linux_kernel | 6.12 | |
linux | linux_kernel | 6.12 |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F0663E1D-0BCE-4D24-BFE4-F9C52687DD40", "versionEndExcluding": "6.6.59", "versionStartIncluding": "6.4", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4486B12-007B-4794-9857-F07145637AA1", "versionEndExcluding": "6.11.6", "versionStartIncluding": "6.7", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*", "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Update rx_bytes on read_skb()\n\nMake sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt()\ncalls are balanced (i.e. virtio_vsock_sock::rx_bytes doesn\u0027t lie) after\nvsock_transport::read_skb().\n\nWhile here, also inform the peer that we\u0027ve freed up space and it has more\ncredit.\n\nFailing to update rx_bytes after packet is dequeued leads to a warning on\nSOCK_STREAM recv():\n\n[ 233.396654] rx_queue is empty, but rx_bytes is non-zero\n[ 233.396702] WARNING: CPU: 11 PID: 40601 at net/vmw_vsock/virtio_transport_common.c:589" }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vsock: Actualizar rx_bytes en read_skb() Aseg\u00farese de que las llamadas a virtio_transport_inc_rx_pkt() y virtio_transport_dec_rx_pkt() est\u00e9n equilibradas (es decir, virtio_vsock_sock::rx_bytes no mienta) despu\u00e9s de vsock_transport::read_skb(). Mientras est\u00e9 aqu\u00ed, tambi\u00e9n informe al par que hemos liberado espacio y que tiene m\u00e1s cr\u00e9dito. Si no se actualiza rx_bytes despu\u00e9s de que se saca el paquete de la cola, se genera una advertencia en SOCK_STREAM recv(): [ 233.396654] rx_queue est\u00e1 vac\u00edo, pero rx_bytes no es cero [ 233.396702] ADVERTENCIA: CPU: 11 PID: 40601 en net/vmw_vsock/virtio_transport_common.c:589" } ], "id": "CVE-2024-50169", "lastModified": "2024-11-22T16:58:47.103", "metrics": { "cvssMetricV31": [ { "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" } ] }, "published": "2024-11-07T10:15:08.033", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/3543152f2d330141d9394d28855cb90b860091d2" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/66cd51de31c682a311c2fa25c580b7ea45859dd9" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/e5ca2b98090b4bb1c393088c724af6c37812a829" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [ { "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Sightings
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Nomenclature
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