github - ghsa-c6pp-jfqw-h5c6

ghsa-c6pp-jfqw-h5c6

Vulnerability from github

Published

2024-05-19 09:34

Modified

2024-05-19 09:34

Details

In the Linux kernel, the following vulnerability has been resolved:

net: mana: Fix Rx DMA datasize and skb_over_panic

mana_get_rxbuf_cfg() aligns the RX buffer's DMA datasize to be multiple of 64. So a packet slightly bigger than mtu+14, say 1536, can be received and cause skb_over_panic.

Sample dmesg: [ 5325.237162] skbuff: skb_over_panic: text:ffffffffc043277a len:1536 put:1536 head:ff1100018b517000 data:ff1100018b517100 tail:0x700 end:0x6ea dev: [ 5325.243689] ------------[ cut here ]------------ [ 5325.245748] kernel BUG at net/core/skbuff.c:192! [ 5325.247838] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 5325.258374] RIP: 0010:skb_panic+0x4f/0x60 [ 5325.302941] Call Trace: [ 5325.304389] [ 5325.315794] ? skb_panic+0x4f/0x60 [ 5325.317457] ? asm_exc_invalid_op+0x1f/0x30 [ 5325.319490] ? skb_panic+0x4f/0x60 [ 5325.321161] skb_put+0x4e/0x50 [ 5325.322670] mana_poll+0x6fa/0xb50 [mana] [ 5325.324578] __napi_poll+0x33/0x1e0 [ 5325.326328] net_rx_action+0x12e/0x280

As discussed internally, this alignment is not necessary. To fix this bug, remove it from the code. So oversized packets will be marked as CQE_RX_TRUNCATED by NIC, and dropped.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-35901"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-19T09:15:10Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Fix Rx DMA datasize and skb_over_panic\n\nmana_get_rxbuf_cfg() aligns the RX buffer\u0027s DMA datasize to be\nmultiple of 64. So a packet slightly bigger than mtu+14, say 1536,\ncan be received and cause skb_over_panic.\n\nSample dmesg:\n[ 5325.237162] skbuff: skb_over_panic: text:ffffffffc043277a len:1536 put:1536 head:ff1100018b517000 data:ff1100018b517100 tail:0x700 end:0x6ea dev:\u003cNULL\u003e\n[ 5325.243689] ------------[ cut here ]------------\n[ 5325.245748] kernel BUG at net/core/skbuff.c:192!\n[ 5325.247838] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n[ 5325.258374] RIP: 0010:skb_panic+0x4f/0x60\n[ 5325.302941] Call Trace:\n[ 5325.304389]  \u003cIRQ\u003e\n[ 5325.315794]  ? skb_panic+0x4f/0x60\n[ 5325.317457]  ? asm_exc_invalid_op+0x1f/0x30\n[ 5325.319490]  ? skb_panic+0x4f/0x60\n[ 5325.321161]  skb_put+0x4e/0x50\n[ 5325.322670]  mana_poll+0x6fa/0xb50 [mana]\n[ 5325.324578]  __napi_poll+0x33/0x1e0\n[ 5325.326328]  net_rx_action+0x12e/0x280\n\nAs discussed internally, this alignment is not necessary. To fix\nthis bug, remove it from the code. So oversized packets will be\nmarked as CQE_RX_TRUNCATED by NIC, and dropped.",
  "id": "GHSA-c6pp-jfqw-h5c6",
  "modified": "2024-05-19T09:34:47Z",
  "published": "2024-05-19T09:34:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35901"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/05cb7c41fa1a7a7b2c2a6b81bbe7c67f5c11932b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0de6ab920aafb56feab56058e46b688e694a246"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca58927b00385005f488b6a9905ced7a4f719aad"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2024-35901

Vulnerability from cvelistv5

Published

2024-05-19 08:34

Modified

2024-11-05 09:24

Severity ?

Summary

net: mana: Fix Rx DMA datasize and skb_over_panic

References

▼	URL	Tags
	https://git.kernel.org/stable/c/ca58927b00385005f488b6a9905ced7a4f719aad
	https://git.kernel.org/stable/c/05cb7c41fa1a7a7b2c2a6b81bbe7c67f5c11932b
	https://git.kernel.org/stable/c/c0de6ab920aafb56feab56058e46b688e694a246

Impacted products

Vendor

Product

Version

▼

Linux

Version: 2fbbd712baf1
Version: 2fbbd712baf1
Version: 2fbbd712baf1

Linux

Version: 6.4

Show details on NVD website

JSON

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                "timestamp": "2024-05-20T17:12:59.513048Z",
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    "dateReserved": "2024-05-17T13:50:33.114Z",
    "dateUpdated": "2024-11-05T09:24:44.198Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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