CVE-2024-26859 (GCVE-0-2024-26859)

Vulnerability from cvelistv5 – Published: 2024-04-17 10:27 – Updated: 2025-05-04 08:58
VLAI?
Title
net/bnx2x: Prevent access to a freed page in page_pool
Summary
In the Linux kernel, the following vulnerability has been resolved: net/bnx2x: Prevent access to a freed page in page_pool Fix race condition leading to system crash during EEH error handling During EEH error recovery, the bnx2x driver's transmit timeout logic could cause a race condition when handling reset tasks. The bnx2x_tx_timeout() schedules reset tasks via bnx2x_sp_rtnl_task(), which ultimately leads to bnx2x_nic_unload(). In bnx2x_nic_unload() SGEs are freed using bnx2x_free_rx_sge_range(). However, this could overlap with the EEH driver's attempt to reset the device using bnx2x_io_slot_reset(), which also tries to free SGEs. This race condition can result in system crashes due to accessing freed memory locations in bnx2x_free_rx_sge() 799 static inline void bnx2x_free_rx_sge(struct bnx2x *bp, 800 struct bnx2x_fastpath *fp, u16 index) 801 { 802 struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; 803 struct page *page = sw_buf->page; .... where sw_buf was set to NULL after the call to dma_unmap_page() by the preceding thread. EEH: Beginning: 'slot_reset' PCI 0011:01:00.0#10000: EEH: Invoking bnx2x->slot_reset() bnx2x: [bnx2x_io_slot_reset:14228(eth1)]IO slot reset initializing... bnx2x 0011:01:00.0: enabling device (0140 -> 0142) bnx2x: [bnx2x_io_slot_reset:14244(eth1)]IO slot reset --> driver unload Kernel attempted to read user page (0) - exploit attempt? (uid: 0) BUG: Kernel NULL pointer dereference on read at 0x00000000 Faulting instruction address: 0xc0080000025065fc Oops: Kernel access of bad area, sig: 11 [#1] ..... Call Trace: [c000000003c67a20] [c00800000250658c] bnx2x_io_slot_reset+0x204/0x610 [bnx2x] (unreliable) [c000000003c67af0] [c0000000000518a8] eeh_report_reset+0xb8/0xf0 [c000000003c67b60] [c000000000052130] eeh_pe_report+0x180/0x550 [c000000003c67c70] [c00000000005318c] eeh_handle_normal_event+0x84c/0xa60 [c000000003c67d50] [c000000000053a84] eeh_event_handler+0xf4/0x170 [c000000003c67da0] [c000000000194c58] kthread+0x1c8/0x1d0 [c000000003c67e10] [c00000000000cf64] ret_from_kernel_thread+0x5c/0x64 To solve this issue, we need to verify page pool allocations before freeing.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4cace675d687ebd2d813e90af80ff87ee85202f9 , < 7bcc090c81116c66936a7415f2c6b1483a4bcfd9 (git)
Affected: 4cace675d687ebd2d813e90af80ff87ee85202f9 , < 4f37d3a7e004bbf560c21441ca9c022168017ec4 (git)
Affected: 4cace675d687ebd2d813e90af80ff87ee85202f9 , < 8eebff95ce9558be66a36aa7cfb43223f3ab4699 (git)
Affected: 4cace675d687ebd2d813e90af80ff87ee85202f9 , < 8ffcd3ccdbda0c918c4a0f922ef1c17010f1b598 (git)
Affected: 4cace675d687ebd2d813e90af80ff87ee85202f9 , < cf7d8cba639ae792a42c2a137b495eac262ac36c (git)
Affected: 4cace675d687ebd2d813e90af80ff87ee85202f9 , < 3a9f78b297e08ca8e88ae3ecff1f6fe2766dc5eb (git)
Affected: 4cace675d687ebd2d813e90af80ff87ee85202f9 , < c51f8b6930db3f259b8820b589f2459d2df3fc68 (git)
Affected: 4cace675d687ebd2d813e90af80ff87ee85202f9 , < 44f9f1abb0ecc43023225ab9539167facbabf0ec (git)
Affected: 4cace675d687ebd2d813e90af80ff87ee85202f9 , < d27e2da94a42655861ca4baea30c8cd65546f25d (git)
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    Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 4.19.311 , ≤ 4.19.* (semver)
Unaffected: 5.4.273 , ≤ 5.4.* (semver)
Unaffected: 5.10.214 , ≤ 5.10.* (semver)
Unaffected: 5.15.153 , ≤ 5.15.* (semver)
Unaffected: 6.1.83 , ≤ 6.1.* (semver)
Unaffected: 6.6.23 , ≤ 6.6.* (semver)
Unaffected: 6.7.11 , ≤ 6.7.* (semver)
Unaffected: 6.8.2 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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\"4cace675d687\", \"lessThan\": \"3a9f78b297e0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4cace675d687\", \"lessThan\": \"c51f8b6930db\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4cace675d687\", \"lessThan\": \"44f9f1abb0ec\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4cace675d687\", \"lessThan\": \"d27e2da94a42\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.2\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.2\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.311\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.273\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.214\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.153\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.83\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.23\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/7bcc090c81116c66936a7415f2c6b1483a4bcfd9\"}, {\"url\": \"https://git.kernel.org/stable/c/4f37d3a7e004bbf560c21441ca9c022168017ec4\"}, {\"url\": \"https://git.kernel.org/stable/c/8eebff95ce9558be66a36aa7cfb43223f3ab4699\"}, {\"url\": \"https://git.kernel.org/stable/c/8ffcd3ccdbda0c918c4a0f922ef1c17010f1b598\"}, {\"url\": \"https://git.kernel.org/stable/c/cf7d8cba639ae792a42c2a137b495eac262ac36c\"}, {\"url\": \"https://git.kernel.org/stable/c/3a9f78b297e08ca8e88ae3ecff1f6fe2766dc5eb\"}, {\"url\": \"https://git.kernel.org/stable/c/c51f8b6930db3f259b8820b589f2459d2df3fc68\"}, {\"url\": \"https://git.kernel.org/stable/c/44f9f1abb0ecc43023225ab9539167facbabf0ec\"}, {\"url\": \"https://git.kernel.org/stable/c/d27e2da94a42655861ca4baea30c8cd65546f25d\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/bnx2x: Prevent access to a freed page in page_pool\\n\\nFix race condition leading to system crash during EEH error handling\\n\\nDuring EEH error recovery, the bnx2x driver\u0027s transmit timeout logic\\ncould cause a race condition when handling reset tasks. The\\nbnx2x_tx_timeout() schedules reset tasks via bnx2x_sp_rtnl_task(),\\nwhich ultimately leads to bnx2x_nic_unload(). In bnx2x_nic_unload()\\nSGEs are freed using bnx2x_free_rx_sge_range(). However, this could\\noverlap with the EEH driver\u0027s attempt to reset the device using\\nbnx2x_io_slot_reset(), which also tries to free SGEs. This race\\ncondition can result in system crashes due to accessing freed memory\\nlocations in bnx2x_free_rx_sge()\\n\\n799  static inline void bnx2x_free_rx_sge(struct bnx2x *bp,\\n800\\t\\t\\t\\tstruct bnx2x_fastpath *fp, u16 index)\\n801  {\\n802\\tstruct sw_rx_page *sw_buf = \u0026fp-\u003erx_page_ring[index];\\n803     struct page *page = sw_buf-\u003epage;\\n....\\nwhere sw_buf was set to NULL after the call to dma_unmap_page()\\nby the preceding thread.\\n\\n    EEH: Beginning: \u0027slot_reset\u0027\\n    PCI 0011:01:00.0#10000: EEH: Invoking bnx2x-\u003eslot_reset()\\n    bnx2x: [bnx2x_io_slot_reset:14228(eth1)]IO slot reset initializing...\\n    bnx2x 0011:01:00.0: enabling device (0140 -\u003e 0142)\\n    bnx2x: [bnx2x_io_slot_reset:14244(eth1)]IO slot reset --\u003e driver unload\\n    Kernel attempted to read user page (0) - exploit attempt? (uid: 0)\\n    BUG: Kernel NULL pointer dereference on read at 0x00000000\\n    Faulting instruction address: 0xc0080000025065fc\\n    Oops: Kernel access of bad area, sig: 11 [#1]\\n    .....\\n    Call Trace:\\n    [c000000003c67a20] [c00800000250658c] bnx2x_io_slot_reset+0x204/0x610 [bnx2x] (unreliable)\\n    [c000000003c67af0] [c0000000000518a8] eeh_report_reset+0xb8/0xf0\\n    [c000000003c67b60] [c000000000052130] eeh_pe_report+0x180/0x550\\n    [c000000003c67c70] [c00000000005318c] eeh_handle_normal_event+0x84c/0xa60\\n    [c000000003c67d50] [c000000000053a84] eeh_event_handler+0xf4/0x170\\n    [c000000003c67da0] [c000000000194c58] kthread+0x1c8/0x1d0\\n    [c000000003c67e10] [c00000000000cf64] ret_from_kernel_thread+0x5c/0x64\\n\\nTo solve this issue, we need to verify page pool allocations before\\nfreeing.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-05T09:17:06.556Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26859\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-05T09:17:06.556Z\", \"dateReserved\": \"2024-02-19T14:20:24.183Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-17T10:27:23.709Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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  • 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.