CVE-2024-35901 (GCVE-0-2024-35901)

Vulnerability from cvelistv5 – Published: 2024-05-19 08:34 – Updated: 2026-05-11 20:13
VLAI
Title
net: mana: Fix Rx DMA datasize and skb_over_panic
Summary
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:<NULL> [ 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] <IRQ> [ 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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2fbbd712baf1c60996554326728bbdbef5616e12 , < ca58927b00385005f488b6a9905ced7a4f719aad (git)
Affected: 2fbbd712baf1c60996554326728bbdbef5616e12 , < 05cb7c41fa1a7a7b2c2a6b81bbe7c67f5c11932b (git)
Affected: 2fbbd712baf1c60996554326728bbdbef5616e12 , < c0de6ab920aafb56feab56058e46b688e694a246 (git)
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Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.6.26 , ≤ 6.6.* (semver)
Unaffected: 6.8.5 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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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. 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[ 5325.247838] c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP NOPTI [ 5325.258374] RIP: 0010:skb_panic+0x4f/0x60 [ 5325.302941] Seguimiento de llamadas: [ 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 Como se analiz\u00f3 internamente, esta alineaci\u00f3n no es necesaria. Para corregir este error, elim\u00ednelo del c\u00f3digo. 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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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.26\", \"versionStartIncluding\": \"6.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.5\", \"versionStartIncluding\": \"6.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"6.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:13:26.743Z\"}}}",
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  }
}


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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.