CVE-2024-40923 (GCVE-0-2024-40923)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:25 – Updated: 2026-08-05 11:34
VLAI
Title
vmxnet3: disable rx data ring on dma allocation failure
Summary
In the Linux kernel, the following vulnerability has been resolved: vmxnet3: disable rx data ring on dma allocation failure When vmxnet3_rq_create() fails to allocate memory for rq->data_ring.base, the subsequent call to vmxnet3_rq_destroy_all_rxdataring does not reset rq->data_ring.desc_size for the data ring that failed, which presumably causes the hypervisor to reference it on packet reception. To fix this bug, rq->data_ring.desc_size needs to be set to 0 to tell the hypervisor to disable this feature. [ 95.436876] kernel BUG at net/core/skbuff.c:207! [ 95.439074] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 95.440411] CPU: 7 PID: 0 Comm: swapper/7 Not tainted 6.9.3-dirty #1 [ 95.441558] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018 [ 95.443481] RIP: 0010:skb_panic+0x4d/0x4f [ 95.444404] Code: 4f 70 50 8b 87 c0 00 00 00 50 8b 87 bc 00 00 00 50 ff b7 d0 00 00 00 4c 8b 8f c8 00 00 00 48 c7 c7 68 e8 be 9f e8 63 58 f9 ff <0f> 0b 48 8b 14 24 48 c7 c1 d0 73 65 9f e8 a1 ff ff ff 48 8b 14 24 [ 95.447684] RSP: 0018:ffffa13340274dd0 EFLAGS: 00010246 [ 95.448762] RAX: 0000000000000089 RBX: ffff8fbbc72b02d0 RCX: 000000000000083f [ 95.450148] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f [ 95.451520] RBP: 000000000000002d R08: 0000000000000000 R09: ffffa13340274c60 [ 95.452886] R10: ffffffffa04ed468 R11: 0000000000000002 R12: 0000000000000000 [ 95.454293] R13: ffff8fbbdab3c2d0 R14: ffff8fbbdbd829e0 R15: ffff8fbbdbd809e0 [ 95.455682] FS: 0000000000000000(0000) GS:ffff8fbeefd80000(0000) knlGS:0000000000000000 [ 95.457178] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.458340] CR2: 00007fd0d1f650c8 CR3: 0000000115f28000 CR4: 00000000000406f0 [ 95.459791] Call Trace: [ 95.460515] <IRQ> [ 95.461180] ? __die_body.cold+0x19/0x27 [ 95.462150] ? die+0x2e/0x50 [ 95.462976] ? do_trap+0xca/0x110 [ 95.463973] ? do_error_trap+0x6a/0x90 [ 95.464966] ? skb_panic+0x4d/0x4f [ 95.465901] ? exc_invalid_op+0x50/0x70 [ 95.466849] ? skb_panic+0x4d/0x4f [ 95.467718] ? asm_exc_invalid_op+0x1a/0x20 [ 95.468758] ? skb_panic+0x4d/0x4f [ 95.469655] skb_put.cold+0x10/0x10 [ 95.470573] vmxnet3_rq_rx_complete+0x862/0x11e0 [vmxnet3] [ 95.471853] vmxnet3_poll_rx_only+0x36/0xb0 [vmxnet3] [ 95.473185] __napi_poll+0x2b/0x160 [ 95.474145] net_rx_action+0x2c6/0x3b0 [ 95.475115] handle_softirqs+0xe7/0x2a0 [ 95.476122] __irq_exit_rcu+0x97/0xb0 [ 95.477109] common_interrupt+0x85/0xa0 [ 95.478102] </IRQ> [ 95.478846] <TASK> [ 95.479603] asm_common_interrupt+0x26/0x40 [ 95.480657] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 95.481801] Code: 22 d7 e9 54 87 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 93 ba 3b 00 fb f4 <e9> 2c 87 01 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 [ 95.485563] RSP: 0018:ffffa133400ffe58 EFLAGS: 00000246 [ 95.486882] RAX: 0000000000004000 RBX: ffff8fbbc1d14064 RCX: 0000000000000000 [ 95.488477] RDX: ffff8fbeefd80000 RSI: ffff8fbbc1d14000 RDI: 0000000000000001 [ 95.490067] RBP: ffff8fbbc1d14064 R08: ffffffffa0652260 R09: 00000000000010d3 [ 95.491683] R10: 0000000000000018 R11: ffff8fbeefdb4764 R12: ffffffffa0652260 [ 95.493389] R13: ffffffffa06522e0 R14: 0000000000000001 R15: 0000000000000000 [ 95.495035] acpi_safe_halt+0x14/0x20 [ 95.496127] acpi_idle_do_entry+0x2f/0x50 [ 95.497221] acpi_idle_enter+0x7f/0xd0 [ 95.498272] cpuidle_enter_state+0x81/0x420 [ 95.499375] cpuidle_enter+0x2d/0x40 [ 95.500400] do_idle+0x1e5/0x240 [ 95.501385] cpu_startup_entry+0x29/0x30 [ 95.502422] start_secondary+0x11c/0x140 [ 95.503454] common_startup_64+0x13e/0x141 [ 95.504466] </TASK> [ 95.505197] Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ip ---truncated---
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:05 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6f4833383e8514ea796d094e05c24889b8997fde , < 9ee14af24e67ef170108db547f7d1f701b3f2bc5 (git)
Affected: 6f4833383e8514ea796d094e05c24889b8997fde , < aa116ae9d169e28b692292460aed27fc44f4a017 (git)
Affected: 6f4833383e8514ea796d094e05c24889b8997fde , < ffbe335b8d471f79b259e950cb20999700670456 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.35 , ≤ 6.6.* (semver)
Unaffected: 6.9.6 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvmxnet3: disable rx data ring on dma allocation failure\n\nWhen vmxnet3_rq_create() fails to allocate memory for rq-\u003edata_ring.base,\nthe subsequent call to vmxnet3_rq_destroy_all_rxdataring does not reset\nrq-\u003edata_ring.desc_size for the data ring that failed, which presumably\ncauses the hypervisor to reference it on packet reception.\n\nTo fix this bug, rq-\u003edata_ring.desc_size needs to be set to 0 to tell\nthe hypervisor to disable this feature.\n\n[   95.436876] kernel BUG at net/core/skbuff.c:207!\n[   95.439074] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n[   95.440411] CPU: 7 PID: 0 Comm: swapper/7 Not tainted 6.9.3-dirty #1\n[   95.441558] Hardware name: VMware, Inc. VMware Virtual\nPlatform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018\n[   95.443481] RIP: 0010:skb_panic+0x4d/0x4f\n[   95.444404] Code: 4f 70 50 8b 87 c0 00 00 00 50 8b 87 bc 00 00 00 50\nff b7 d0 00 00 00 4c 8b 8f c8 00 00 00 48 c7 c7 68 e8 be 9f e8 63 58 f9\nff \u003c0f\u003e 0b 48 8b 14 24 48 c7 c1 d0 73 65 9f e8 a1 ff ff ff 48 8b 14 24\n[   95.447684] RSP: 0018:ffffa13340274dd0 EFLAGS: 00010246\n[   95.448762] RAX: 0000000000000089 RBX: ffff8fbbc72b02d0 RCX: 000000000000083f\n[   95.450148] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f\n[   95.451520] RBP: 000000000000002d R08: 0000000000000000 R09: ffffa13340274c60\n[   95.452886] R10: ffffffffa04ed468 R11: 0000000000000002 R12: 0000000000000000\n[   95.454293] R13: ffff8fbbdab3c2d0 R14: ffff8fbbdbd829e0 R15: ffff8fbbdbd809e0\n[   95.455682] FS:  0000000000000000(0000) GS:ffff8fbeefd80000(0000) knlGS:0000000000000000\n[   95.457178] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   95.458340] CR2: 00007fd0d1f650c8 CR3: 0000000115f28000 CR4: 00000000000406f0\n[   95.459791] Call Trace:\n[   95.460515]  \u003cIRQ\u003e\n[   95.461180]  ? __die_body.cold+0x19/0x27\n[   95.462150]  ? die+0x2e/0x50\n[   95.462976]  ? do_trap+0xca/0x110\n[   95.463973]  ? do_error_trap+0x6a/0x90\n[   95.464966]  ? skb_panic+0x4d/0x4f\n[   95.465901]  ? exc_invalid_op+0x50/0x70\n[   95.466849]  ? skb_panic+0x4d/0x4f\n[   95.467718]  ? asm_exc_invalid_op+0x1a/0x20\n[   95.468758]  ? skb_panic+0x4d/0x4f\n[   95.469655]  skb_put.cold+0x10/0x10\n[   95.470573]  vmxnet3_rq_rx_complete+0x862/0x11e0 [vmxnet3]\n[   95.471853]  vmxnet3_poll_rx_only+0x36/0xb0 [vmxnet3]\n[   95.473185]  __napi_poll+0x2b/0x160\n[   95.474145]  net_rx_action+0x2c6/0x3b0\n[   95.475115]  handle_softirqs+0xe7/0x2a0\n[   95.476122]  __irq_exit_rcu+0x97/0xb0\n[   95.477109]  common_interrupt+0x85/0xa0\n[   95.478102]  \u003c/IRQ\u003e\n[   95.478846]  \u003cTASK\u003e\n[   95.479603]  asm_common_interrupt+0x26/0x40\n[   95.480657] RIP: 0010:pv_native_safe_halt+0xf/0x20\n[   95.481801] Code: 22 d7 e9 54 87 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 93 ba 3b 00 fb f4 \u003ce9\u003e 2c 87 01 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90\n[   95.485563] RSP: 0018:ffffa133400ffe58 EFLAGS: 00000246\n[   95.486882] RAX: 0000000000004000 RBX: ffff8fbbc1d14064 RCX: 0000000000000000\n[   95.488477] RDX: ffff8fbeefd80000 RSI: ffff8fbbc1d14000 RDI: 0000000000000001\n[   95.490067] RBP: ffff8fbbc1d14064 R08: ffffffffa0652260 R09: 00000000000010d3\n[   95.491683] R10: 0000000000000018 R11: ffff8fbeefdb4764 R12: ffffffffa0652260\n[   95.493389] R13: ffffffffa06522e0 R14: 0000000000000001 R15: 0000000000000000\n[   95.495035]  acpi_safe_halt+0x14/0x20\n[   95.496127]  acpi_idle_do_entry+0x2f/0x50\n[   95.497221]  acpi_idle_enter+0x7f/0xd0\n[   95.498272]  cpuidle_enter_state+0x81/0x420\n[   95.499375]  cpuidle_enter+0x2d/0x40\n[   95.500400]  do_idle+0x1e5/0x240\n[   95.501385]  cpu_startup_entry+0x29/0x30\n[   95.502422]  start_secondary+0x11c/0x140\n[   95.503454]  common_startup_64+0x13e/0x141\n[   95.504466]  \u003c/TASK\u003e\n[   95.505197] Modules linked in: nft_fib_inet nft_fib_ipv4\nnft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6\nnft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ip\n---truncated---"
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            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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              "value": "AV:N - The memory corruption and the BUG() are driven entirely by frames received from the network and processed in `vmxnet3_rq_rx_complete()` via NAPI, so any host able to send traffic to the VMware guest\u0027s vmxnet3 interface can trigger it. No local access to the guest is needed.\nAC:L - Once the rx data ring allocation has failed, every single received packet steered to that queue reliably takes the broken path \u2014 the attacker triggers the undersized-skb refill and the skb_over_panic at will, with no race to win and no memory layout to guess.\nPR:N - Packet reception requires no authentication or credentials on the guest; an unauthenticated remote peer simply sends frames to the VM\u0027s NIC.\nUI:N - The vulnerable code runs in softirq context on packet arrival with no involvement from any logged-in user of the guest.\nS:U - The corruption stays within the guest kernel\u0027s own security authority \u2014 the guest itself published the bogus DMA address and buffer length, so no hypervisor, IOMMU, or VM boundary is crossed.\nC:H - The stale `rxDataRingBasePA` points at freed (or zero) guest physical memory that the hypervisor keeps writing packet data into, and the undersized skb is handed to the network stack after `skb_put()`, exposing adjacent kernel heap contents; the resulting heap corruption is leverageable for arbitrary kernel memory disclosure.\nI:H - `dma_map_single(new_skb-\u003edata, rbi-\u003elen, ...)` with `rxd-\u003elen = rbi-\u003elen` lets the vNIC DMA up to 3072 bytes of fully attacker-controlled packet payload into a ~128-byte skb buffer \u2014 an out-of-bounds heap write with controlled data and controlled length, the classic primitive for control-flow hijack.\nA:H - The reported and reproducible outcome is `kernel BUG at net/core/skbuff.c:207` (`skb_over_panic`) inside `vmxnet3_poll_rx_only()` in softirq context, an unrecoverable oops/panic of the guest kernel."
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-40923",
    "datePublished": "2024-07-12T12:25:04.245Z",
    "dateReserved": "2024-07-12T12:17:45.582Z",
    "dateUpdated": "2026-08-05T11:34:02.045Z",
    "state": "PUBLISHED"
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      "date": "2026-09-30",
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                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.3:-:*:*:*:*:*:*",
                    "matchCriteriaId": "21D6F467-B848-453E-B1A4-BEF940E413A6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvmxnet3: disable rx data ring on dma allocation failure\n\nWhen vmxnet3_rq_create() fails to allocate memory for rq-\u003edata_ring.base,\nthe subsequent call to vmxnet3_rq_destroy_all_rxdataring does not reset\nrq-\u003edata_ring.desc_size for the data ring that failed, which presumably\ncauses the hypervisor to reference it on packet reception.\n\nTo fix this bug, rq-\u003edata_ring.desc_size needs to be set to 0 to tell\nthe hypervisor to disable this feature.\n\n[   95.436876] kernel BUG at net/core/skbuff.c:207!\n[   95.439074] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n[   95.440411] CPU: 7 PID: 0 Comm: swapper/7 Not tainted 6.9.3-dirty #1\n[   95.441558] Hardware name: VMware, Inc. VMware Virtual\nPlatform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018\n[   95.443481] RIP: 0010:skb_panic+0x4d/0x4f\n[   95.444404] Code: 4f 70 50 8b 87 c0 00 00 00 50 8b 87 bc 00 00 00 50\nff b7 d0 00 00 00 4c 8b 8f c8 00 00 00 48 c7 c7 68 e8 be 9f e8 63 58 f9\nff \u003c0f\u003e 0b 48 8b 14 24 48 c7 c1 d0 73 65 9f e8 a1 ff ff ff 48 8b 14 24\n[   95.447684] RSP: 0018:ffffa13340274dd0 EFLAGS: 00010246\n[   95.448762] RAX: 0000000000000089 RBX: ffff8fbbc72b02d0 RCX: 000000000000083f\n[   95.450148] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f\n[   95.451520] RBP: 000000000000002d R08: 0000000000000000 R09: ffffa13340274c60\n[   95.452886] R10: ffffffffa04ed468 R11: 0000000000000002 R12: 0000000000000000\n[   95.454293] R13: ffff8fbbdab3c2d0 R14: ffff8fbbdbd829e0 R15: ffff8fbbdbd809e0\n[   95.455682] FS:  0000000000000000(0000) GS:ffff8fbeefd80000(0000) knlGS:0000000000000000\n[   95.457178] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   95.458340] CR2: 00007fd0d1f650c8 CR3: 0000000115f28000 CR4: 00000000000406f0\n[   95.459791] Call Trace:\n[   95.460515]  \u003cIRQ\u003e\n[   95.461180]  ? __die_body.cold+0x19/0x27\n[   95.462150]  ? die+0x2e/0x50\n[   95.462976]  ? do_trap+0xca/0x110\n[   95.463973]  ? do_error_trap+0x6a/0x90\n[   95.464966]  ? skb_panic+0x4d/0x4f\n[   95.465901]  ? exc_invalid_op+0x50/0x70\n[   95.466849]  ? skb_panic+0x4d/0x4f\n[   95.467718]  ? asm_exc_invalid_op+0x1a/0x20\n[   95.468758]  ? skb_panic+0x4d/0x4f\n[   95.469655]  skb_put.cold+0x10/0x10\n[   95.470573]  vmxnet3_rq_rx_complete+0x862/0x11e0 [vmxnet3]\n[   95.471853]  vmxnet3_poll_rx_only+0x36/0xb0 [vmxnet3]\n[   95.473185]  __napi_poll+0x2b/0x160\n[   95.474145]  net_rx_action+0x2c6/0x3b0\n[   95.475115]  handle_softirqs+0xe7/0x2a0\n[   95.476122]  __irq_exit_rcu+0x97/0xb0\n[   95.477109]  common_interrupt+0x85/0xa0\n[   95.478102]  \u003c/IRQ\u003e\n[   95.478846]  \u003cTASK\u003e\n[   95.479603]  asm_common_interrupt+0x26/0x40\n[   95.480657] RIP: 0010:pv_native_safe_halt+0xf/0x20\n[   95.481801] Code: 22 d7 e9 54 87 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 93 ba 3b 00 fb f4 \u003ce9\u003e 2c 87 01 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90\n[   95.485563] RSP: 0018:ffffa133400ffe58 EFLAGS: 00000246\n[   95.486882] RAX: 0000000000004000 RBX: ffff8fbbc1d14064 RCX: 0000000000000000\n[   95.488477] RDX: ffff8fbeefd80000 RSI: ffff8fbbc1d14000 RDI: 0000000000000001\n[   95.490067] RBP: ffff8fbbc1d14064 R08: ffffffffa0652260 R09: 00000000000010d3\n[   95.491683] R10: 0000000000000018 R11: ffff8fbeefdb4764 R12: ffffffffa0652260\n[   95.493389] R13: ffffffffa06522e0 R14: 0000000000000001 R15: 0000000000000000\n[   95.495035]  acpi_safe_halt+0x14/0x20\n[   95.496127]  acpi_idle_do_entry+0x2f/0x50\n[   95.497221]  acpi_idle_enter+0x7f/0xd0\n[   95.498272]  cpuidle_enter_state+0x81/0x420\n[   95.499375]  cpuidle_enter+0x2d/0x40\n[   95.500400]  do_idle+0x1e5/0x240\n[   95.501385]  cpu_startup_entry+0x29/0x30\n[   95.502422]  start_secondary+0x11c/0x140\n[   95.503454]  common_startup_64+0x13e/0x141\n[   95.504466]  \u003c/TASK\u003e\n[   95.505197] Modules linked in: nft_fib_inet nft_fib_ipv4\nnft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6\nnft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ip\n---truncated---"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: vmxnet3: deshabilite el anillo de datos rx en caso de falla en la asignaci\u00f3n de dma Cuando vmxnet3_rq_create() no puede asignar memoria para rq-\u0026gt;data_ring.base, la llamada posterior a vmxnet3_rq_destroy_all_rxdataring no restablece rq-\u0026gt;data_ring .desc_size para el anillo de datos que fall\u00f3, lo que presumiblemente hace que el hipervisor haga referencia a \u00e9l al recibir el paquete. Para corregir este error, rq-\u0026gt;data_ring.desc_size debe establecerse en 0 para indicarle al hipervisor que desactive esta funci\u00f3n. [95.436876] \u00a1ERROR del kernel en net/core/skbuff.c:207! [ 95.439074] c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP NOPTI [ 95.440411] CPU: 7 PID: 0 Comm: swapper/7 Not tainted 6.9.3-dirty #1 [ 95.441558] Nombre de hardware: VMware, Inc. VMware Virtual Platform Plataforma de referencia de escritorio /440BX, BIOS 6.00 12/12/2018 [ 95.443481] RIP: 0010:skb_panic+0x4d/0x4f [ 95.444404] C\u00f3digo: 4f 70 50 8b 87 c0 00 00 00 50 8b 87 bc 00 00 50 ff b7 d0 00 00 00 4c 8b 8f c8 00 00 00 48 c7 c7 68 e8 be 9f e8 63 58 f9 ff \u0026lt;0f\u0026gt; 0b 48 8b 14 24 48 c7 c1 d0 73 65 9f e8 a1 ff ff 48 8b 14 24 [ 7684] RSP : 0018:ffffa13340274dd0 EFLAGS: 00010246 [ 95.448762] RAX: 0000000000000089 RBX: ffff8fbbc72b02d0 RCX: 000000000000083f [ 95.450148] RDX: 00000000000000 RSI: 00000000000000f6 RDI: 000000000000083f [ 95.451520] RBP: 000000000000002d R08: 0000000000000000 R09: 0 [ 95.452886] R10: fffffffa04ed468 R11 : 0000000000000002 R12: 0000000000000000 [ 95.454293] R13: ffff8fbbdab3c2d0 R14: ffff8fbbdbd829e0 R15: ffff8fbbdbd809e0 [ 95.455682] FS: 00000000000(0000) GS:ffff8fbeefd80000(0000) knlGS:0000000000000000 [ 95.457178] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [95.458340] CR2: 00007fd0d1f650c8 CR3: 0000000115f28000 CR4: 00000000000406f0 [ 95.459791] Seguimiento de llamadas: [ 95.460515]  [ 95.461180] ? __die_body.cold+0x19/0x27 [ 95.462150] ? morir+0x2e/0x50 [ 95.462976] ? do_trap+0xca/0x110 [95.463973]? do_error_trap+0x6a/0x90 [95.464966]? skb_panic+0x4d/0x4f [95.465901]? exc_invalid_op+0x50/0x70 [95.466849]? skb_panic+0x4d/0x4f [95.467718]? asm_exc_invalid_op+0x1a/0x20 [95.468758]? skb_panic+0x4d/0x4f [ 95.469655] skb_put.cold+0x10/0x10 [ 95.470573] vmxnet3_rq_rx_complete+0x862/0x11e0 [vmxnet3] [ 95.471853] [vmxnet3] [95.473185] __napi_poll+0x2b/0x160 [95.474145] net_rx_action+ 0x2c6/0x3b0 [ 95.475115] handle_softirqs+0xe7/0x2a0 [ 95.476122] __irq_exit_rcu+0x97/0xb0 [ 95.477109] common_interrupt+0x85/0xa0 [ 95.478102]  95.478 846]  [ 95.479603] asm_common_interrupt+0x26/0x40 [ 95.480657 ] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 95.481801] C\u00f3digo: 22 d7 e9 54 87 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 93 ba 3b 00 fb f4  2c 87 01 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 [ 95.485563] RSP: 0018:ffffa133400ffe58 EFLAGS: 00000246 [ 95.486882] RAX: 0000000000004000 RBX: ffff8fbbc1d14064 RCX: 0000000000000000 [ 95.488477] RDX: ffff8fbeefd80000 RSI: ffff8fbbc1d14000 RDI: 00000000000000001 [ 95.490067] RBP: d14064 R08: fffffffa0652260 R09: 00000000000010d3 [ 95.491683] R10: 0000000000000018 R11: ffff8fbeefdb4764 R12: fffffffa0652260 [ 95.493389] fffffffa06522e0 R14: 0000000000000001 R15 : 0000000000000000 [ 95.495035] acpi_safe_halt+0x14/0x20 [ 95.496127] acpi_idle_do_entry+0x2f/0x50 [ 95.497221] acpi_idle_enter+0x7f/0xd0 [ 95.498272] le_enter_state+0x81/0x420 [ 95.499375] cpuidle_enter+0x2d/0x40 [ 95.500400] do_idle+0x1e5/0x240 [ 95.501385] cpu_startup_entry+0x29/0x30 [ 95.502422] start_secondary+0x11c/0x140 [ 95.503454] common_startup_64+0x13e/0x141 [ 95.504466]  [ 95.505197] M\u00f3dulos vinculados en: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ip ---truncado---"
          }
        ],
        "id": "CVE-2024-40923",
        "lastModified": "2026-08-04T11:19:05.643",
        "metrics": {
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                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
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                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
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                "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",
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                "role": "CISA Coordinator",
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        "published": "2024-07-12T13:15:15.200",
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      "current_release_date": "2026-08-04T18:48:13+00:00",
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      "product_status:fixed": "280",
      "product_status:known_affected": "112",
      "product_status:known_not_affected": "8",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: vmxnet3: disable rx data ring on dma allocation failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-40923.json",
      "version": "3"
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    "vulnrichment": {
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              "dateUpdated": "2024-08-02T04:39:55.850Z",
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              "product": "Linux",
              "programFiles": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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            {
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              "versions": [
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                  "version": "0",
                  "versionType": "semver"
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                  "versionType": "original_commit_for_fix"
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            }
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          "cpeApplicability": [
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                      "versionStartIncluding": "6.3",
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                    },
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                      "versionStartIncluding": "6.3",
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          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvmxnet3: disable rx data ring on dma allocation failure\n\nWhen vmxnet3_rq_create() fails to allocate memory for rq-\u003edata_ring.base,\nthe subsequent call to vmxnet3_rq_destroy_all_rxdataring does not reset\nrq-\u003edata_ring.desc_size for the data ring that failed, which presumably\ncauses the hypervisor to reference it on packet reception.\n\nTo fix this bug, rq-\u003edata_ring.desc_size needs to be set to 0 to tell\nthe hypervisor to disable this feature.\n\n[   95.436876] kernel BUG at net/core/skbuff.c:207!\n[   95.439074] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n[   95.440411] CPU: 7 PID: 0 Comm: swapper/7 Not tainted 6.9.3-dirty #1\n[   95.441558] Hardware name: VMware, Inc. VMware Virtual\nPlatform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018\n[   95.443481] RIP: 0010:skb_panic+0x4d/0x4f\n[   95.444404] Code: 4f 70 50 8b 87 c0 00 00 00 50 8b 87 bc 00 00 00 50\nff b7 d0 00 00 00 4c 8b 8f c8 00 00 00 48 c7 c7 68 e8 be 9f e8 63 58 f9\nff \u003c0f\u003e 0b 48 8b 14 24 48 c7 c1 d0 73 65 9f e8 a1 ff ff ff 48 8b 14 24\n[   95.447684] RSP: 0018:ffffa13340274dd0 EFLAGS: 00010246\n[   95.448762] RAX: 0000000000000089 RBX: ffff8fbbc72b02d0 RCX: 000000000000083f\n[   95.450148] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f\n[   95.451520] RBP: 000000000000002d R08: 0000000000000000 R09: ffffa13340274c60\n[   95.452886] R10: ffffffffa04ed468 R11: 0000000000000002 R12: 0000000000000000\n[   95.454293] R13: ffff8fbbdab3c2d0 R14: ffff8fbbdbd829e0 R15: ffff8fbbdbd809e0\n[   95.455682] FS:  0000000000000000(0000) GS:ffff8fbeefd80000(0000) knlGS:0000000000000000\n[   95.457178] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   95.458340] CR2: 00007fd0d1f650c8 CR3: 0000000115f28000 CR4: 00000000000406f0\n[   95.459791] Call Trace:\n[   95.460515]  \u003cIRQ\u003e\n[   95.461180]  ? __die_body.cold+0x19/0x27\n[   95.462150]  ? die+0x2e/0x50\n[   95.462976]  ? do_trap+0xca/0x110\n[   95.463973]  ? do_error_trap+0x6a/0x90\n[   95.464966]  ? skb_panic+0x4d/0x4f\n[   95.465901]  ? exc_invalid_op+0x50/0x70\n[   95.466849]  ? skb_panic+0x4d/0x4f\n[   95.467718]  ? asm_exc_invalid_op+0x1a/0x20\n[   95.468758]  ? skb_panic+0x4d/0x4f\n[   95.469655]  skb_put.cold+0x10/0x10\n[   95.470573]  vmxnet3_rq_rx_complete+0x862/0x11e0 [vmxnet3]\n[   95.471853]  vmxnet3_poll_rx_only+0x36/0xb0 [vmxnet3]\n[   95.473185]  __napi_poll+0x2b/0x160\n[   95.474145]  net_rx_action+0x2c6/0x3b0\n[   95.475115]  handle_softirqs+0xe7/0x2a0\n[   95.476122]  __irq_exit_rcu+0x97/0xb0\n[   95.477109]  common_interrupt+0x85/0xa0\n[   95.478102]  \u003c/IRQ\u003e\n[   95.478846]  \u003cTASK\u003e\n[   95.479603]  asm_common_interrupt+0x26/0x40\n[   95.480657] RIP: 0010:pv_native_safe_halt+0xf/0x20\n[   95.481801] Code: 22 d7 e9 54 87 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 93 ba 3b 00 fb f4 \u003ce9\u003e 2c 87 01 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90\n[   95.485563] RSP: 0018:ffffa133400ffe58 EFLAGS: 00000246\n[   95.486882] RAX: 0000000000004000 RBX: ffff8fbbc1d14064 RCX: 0000000000000000\n[   95.488477] RDX: ffff8fbeefd80000 RSI: ffff8fbbc1d14000 RDI: 0000000000000001\n[   95.490067] RBP: ffff8fbbc1d14064 R08: ffffffffa0652260 R09: 00000000000010d3\n[   95.491683] R10: 0000000000000018 R11: ffff8fbeefdb4764 R12: ffffffffa0652260\n[   95.493389] R13: ffffffffa06522e0 R14: 0000000000000001 R15: 0000000000000000\n[   95.495035]  acpi_safe_halt+0x14/0x20\n[   95.496127]  acpi_idle_do_entry+0x2f/0x50\n[   95.497221]  acpi_idle_enter+0x7f/0xd0\n[   95.498272]  cpuidle_enter_state+0x81/0x420\n[   95.499375]  cpuidle_enter+0x2d/0x40\n[   95.500400]  do_idle+0x1e5/0x240\n[   95.501385]  cpu_startup_entry+0x29/0x30\n[   95.502422]  start_secondary+0x11c/0x140\n[   95.503454]  common_startup_64+0x13e/0x141\n[   95.504466]  \u003c/TASK\u003e\n[   95.505197] Modules linked in: nft_fib_inet nft_fib_ipv4\nnft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6\nnft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ip\n---truncated---"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:22:26.891Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/9ee14af24e67ef170108db547f7d1f701b3f2bc5"
            },
            {
              "url": "https://git.kernel.org/stable/c/aa116ae9d169e28b692292460aed27fc44f4a017"
            },
            {
              "url": "https://git.kernel.org/stable/c/ffbe335b8d471f79b259e950cb20999700670456"
            }
          ],
          "title": "vmxnet3: disable rx data ring on dma allocation failure",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-40923",
        "datePublished": "2024-07-12T12:25:04.245Z",
        "dateReserved": "2024-07-12T12:17:45.582Z",
        "dateUpdated": "2026-05-11T20:22:26.891Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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