CVE-2024-26611 (GCVE-0-2024-26611)

Vulnerability from cvelistv5 – Published: 2024-02-29 15:52 – Updated: 2025-05-04 08:52
VLAI?
Title
xsk: fix usage of multi-buffer BPF helpers for ZC XDP
Summary
In the Linux kernel, the following vulnerability has been resolved: xsk: fix usage of multi-buffer BPF helpers for ZC XDP Currently when packet is shrunk via bpf_xdp_adjust_tail() and memory type is set to MEM_TYPE_XSK_BUFF_POOL, null ptr dereference happens: [1136314.192256] BUG: kernel NULL pointer dereference, address: 0000000000000034 [1136314.203943] #PF: supervisor read access in kernel mode [1136314.213768] #PF: error_code(0x0000) - not-present page [1136314.223550] PGD 0 P4D 0 [1136314.230684] Oops: 0000 [#1] PREEMPT SMP NOPTI [1136314.239621] CPU: 8 PID: 54203 Comm: xdpsock Not tainted 6.6.0+ #257 [1136314.250469] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019 [1136314.265615] RIP: 0010:__xdp_return+0x6c/0x210 [1136314.274653] Code: ad 00 48 8b 47 08 49 89 f8 a8 01 0f 85 9b 01 00 00 0f 1f 44 00 00 f0 41 ff 48 34 75 32 4c 89 c7 e9 79 cd 80 ff 83 fe 03 75 17 <f6> 41 34 01 0f 85 02 01 00 00 48 89 cf e9 22 cc 1e 00 e9 3d d2 86 [1136314.302907] RSP: 0018:ffffc900089f8db0 EFLAGS: 00010246 [1136314.312967] RAX: ffffc9003168aed0 RBX: ffff8881c3300000 RCX: 0000000000000000 [1136314.324953] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffc9003168c000 [1136314.336929] RBP: 0000000000000ae0 R08: 0000000000000002 R09: 0000000000010000 [1136314.348844] R10: ffffc9000e495000 R11: 0000000000000040 R12: 0000000000000001 [1136314.360706] R13: 0000000000000524 R14: ffffc9003168aec0 R15: 0000000000000001 [1136314.373298] FS: 00007f8df8bbcb80(0000) GS:ffff8897e0e00000(0000) knlGS:0000000000000000 [1136314.386105] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [1136314.396532] CR2: 0000000000000034 CR3: 00000001aa912002 CR4: 00000000007706f0 [1136314.408377] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [1136314.420173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [1136314.431890] PKRU: 55555554 [1136314.439143] Call Trace: [1136314.446058] <IRQ> [1136314.452465] ? __die+0x20/0x70 [1136314.459881] ? page_fault_oops+0x15b/0x440 [1136314.468305] ? exc_page_fault+0x6a/0x150 [1136314.476491] ? asm_exc_page_fault+0x22/0x30 [1136314.484927] ? __xdp_return+0x6c/0x210 [1136314.492863] bpf_xdp_adjust_tail+0x155/0x1d0 [1136314.501269] bpf_prog_ccc47ae29d3b6570_xdp_sock_prog+0x15/0x60 [1136314.511263] ice_clean_rx_irq_zc+0x206/0xc60 [ice] [1136314.520222] ? ice_xmit_zc+0x6e/0x150 [ice] [1136314.528506] ice_napi_poll+0x467/0x670 [ice] [1136314.536858] ? ttwu_do_activate.constprop.0+0x8f/0x1a0 [1136314.546010] __napi_poll+0x29/0x1b0 [1136314.553462] net_rx_action+0x133/0x270 [1136314.561619] __do_softirq+0xbe/0x28e [1136314.569303] do_softirq+0x3f/0x60 This comes from __xdp_return() call with xdp_buff argument passed as NULL which is supposed to be consumed by xsk_buff_free() call. To address this properly, in ZC case, a node that represents the frag being removed has to be pulled out of xskb_list. Introduce appropriate xsk helpers to do such node operation and use them accordingly within bpf_xdp_adjust_tail().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 24ea50127ecf0efe819c1f6230add27abc6ca9d9 , < 82ee4781b8200e44669a354140d5c6bd966b8768 (git)
Affected: 24ea50127ecf0efe819c1f6230add27abc6ca9d9 , < 5cd781f7216f980207af09c5e0e1bb1eda284540 (git)
Affected: 24ea50127ecf0efe819c1f6230add27abc6ca9d9 , < c5114710c8ce86b8317e9b448f4fd15c711c2a82 (git)
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    Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.15 , ≤ 6.6.* (semver)
Unaffected: 6.7.3 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxsk: fix usage of multi-buffer BPF helpers for ZC XDP\n\nCurrently when packet is shrunk via bpf_xdp_adjust_tail() and memory\ntype is set to MEM_TYPE_XSK_BUFF_POOL, null ptr dereference happens:\n\n[1136314.192256] BUG: kernel NULL pointer dereference, address:\n0000000000000034\n[1136314.203943] #PF: supervisor read access in kernel mode\n[1136314.213768] #PF: error_code(0x0000) - not-present page\n[1136314.223550] PGD 0 P4D 0\n[1136314.230684] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[1136314.239621] CPU: 8 PID: 54203 Comm: xdpsock Not tainted 6.6.0+ #257\n[1136314.250469] Hardware name: Intel Corporation S2600WFT/S2600WFT,\nBIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019\n[1136314.265615] RIP: 0010:__xdp_return+0x6c/0x210\n[1136314.274653] Code: ad 00 48 8b 47 08 49 89 f8 a8 01 0f 85 9b 01 00 00 0f 1f 44 00 00 f0 41 ff 48 34 75 32 4c 89 c7 e9 79 cd 80 ff 83 fe 03 75 17 \u003cf6\u003e 41 34 01 0f 85 02 01 00 00 48 89 cf e9 22 cc 1e 00 e9 3d d2 86\n[1136314.302907] RSP: 0018:ffffc900089f8db0 EFLAGS: 00010246\n[1136314.312967] RAX: ffffc9003168aed0 RBX: ffff8881c3300000 RCX:\n0000000000000000\n[1136314.324953] RDX: 0000000000000000 RSI: 0000000000000003 RDI:\nffffc9003168c000\n[1136314.336929] RBP: 0000000000000ae0 R08: 0000000000000002 R09:\n0000000000010000\n[1136314.348844] R10: ffffc9000e495000 R11: 0000000000000040 R12:\n0000000000000001\n[1136314.360706] R13: 0000000000000524 R14: ffffc9003168aec0 R15:\n0000000000000001\n[1136314.373298] FS:  00007f8df8bbcb80(0000) GS:ffff8897e0e00000(0000)\nknlGS:0000000000000000\n[1136314.386105] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[1136314.396532] CR2: 0000000000000034 CR3: 00000001aa912002 CR4:\n00000000007706f0\n[1136314.408377] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\n0000000000000000\n[1136314.420173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:\n0000000000000400\n[1136314.431890] PKRU: 55555554\n[1136314.439143] Call Trace:\n[1136314.446058]  \u003cIRQ\u003e\n[1136314.452465]  ? __die+0x20/0x70\n[1136314.459881]  ? page_fault_oops+0x15b/0x440\n[1136314.468305]  ? exc_page_fault+0x6a/0x150\n[1136314.476491]  ? asm_exc_page_fault+0x22/0x30\n[1136314.484927]  ? __xdp_return+0x6c/0x210\n[1136314.492863]  bpf_xdp_adjust_tail+0x155/0x1d0\n[1136314.501269]  bpf_prog_ccc47ae29d3b6570_xdp_sock_prog+0x15/0x60\n[1136314.511263]  ice_clean_rx_irq_zc+0x206/0xc60 [ice]\n[1136314.520222]  ? ice_xmit_zc+0x6e/0x150 [ice]\n[1136314.528506]  ice_napi_poll+0x467/0x670 [ice]\n[1136314.536858]  ? ttwu_do_activate.constprop.0+0x8f/0x1a0\n[1136314.546010]  __napi_poll+0x29/0x1b0\n[1136314.553462]  net_rx_action+0x133/0x270\n[1136314.561619]  __do_softirq+0xbe/0x28e\n[1136314.569303]  do_softirq+0x3f/0x60\n\nThis comes from __xdp_return() call with xdp_buff argument passed as\nNULL which is supposed to be consumed by xsk_buff_free() call.\n\nTo address this properly, in ZC case, a node that represents the frag\nbeing removed has to be pulled out of xskb_list. Introduce\nappropriate xsk helpers to do such node operation and use them\naccordingly within bpf_xdp_adjust_tail()."
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          "url": "https://git.kernel.org/stable/c/c5114710c8ce86b8317e9b448f4fd15c711c2a82"
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    "datePublished": "2024-02-29T15:52:16.405Z",
    "dateReserved": "2024-02-19T14:20:24.130Z",
    "dateUpdated": "2025-05-04T08:52:17.425Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.1",
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not-present page\\n[1136314.223550] PGD 0 P4D 0\\n[1136314.230684] Oops: 0000 [#1] PREEMPT SMP NOPTI\\n[1136314.239621] CPU: 8 PID: 54203 Comm: xdpsock Not tainted 6.6.0+ #257\\n[1136314.250469] Hardware name: Intel Corporation S2600WFT/S2600WFT,\\nBIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019\\n[1136314.265615] RIP: 0010:__xdp_return+0x6c/0x210\\n[1136314.274653] Code: ad 00 48 8b 47 08 49 89 f8 a8 01 0f 85 9b 01 00 00 0f 1f 44 00 00 f0 41 ff 48 34 75 32 4c 89 c7 e9 79 cd 80 ff 83 fe 03 75 17 \u003cf6\u003e 41 34 01 0f 85 02 01 00 00 48 89 cf e9 22 cc 1e 00 e9 3d d2 86\\n[1136314.302907] RSP: 0018:ffffc900089f8db0 EFLAGS: 00010246\\n[1136314.312967] RAX: ffffc9003168aed0 RBX: ffff8881c3300000 RCX:\\n0000000000000000\\n[1136314.324953] RDX: 0000000000000000 RSI: 0000000000000003 RDI:\\nffffc9003168c000\\n[1136314.336929] RBP: 0000000000000ae0 R08: 0000000000000002 R09:\\n0000000000010000\\n[1136314.348844] R10: ffffc9000e495000 R11: 0000000000000040 R12:\\n0000000000000001\\n[1136314.360706] R13: 0000000000000524 R14: ffffc9003168aec0 R15:\\n0000000000000001\\n[1136314.373298] FS:  00007f8df8bbcb80(0000) GS:ffff8897e0e00000(0000)\\nknlGS:0000000000000000\\n[1136314.386105] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[1136314.396532] CR2: 0000000000000034 CR3: 00000001aa912002 CR4:\\n00000000007706f0\\n[1136314.408377] DR0: 0000000000000000 DR1: 0000000000000000 DR2:\\n0000000000000000\\n[1136314.420173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:\\n0000000000000400\\n[1136314.431890] PKRU: 55555554\\n[1136314.439143] Call Trace:\\n[1136314.446058]  \u003cIRQ\u003e\\n[1136314.452465]  ? __die+0x20/0x70\\n[1136314.459881]  ? page_fault_oops+0x15b/0x440\\n[1136314.468305]  ? exc_page_fault+0x6a/0x150\\n[1136314.476491]  ? asm_exc_page_fault+0x22/0x30\\n[1136314.484927]  ? __xdp_return+0x6c/0x210\\n[1136314.492863]  bpf_xdp_adjust_tail+0x155/0x1d0\\n[1136314.501269]  bpf_prog_ccc47ae29d3b6570_xdp_sock_prog+0x15/0x60\\n[1136314.511263]  ice_clean_rx_irq_zc+0x206/0xc60 [ice]\\n[1136314.520222]  ? ice_xmit_zc+0x6e/0x150 [ice]\\n[1136314.528506]  ice_napi_poll+0x467/0x670 [ice]\\n[1136314.536858]  ? ttwu_do_activate.constprop.0+0x8f/0x1a0\\n[1136314.546010]  __napi_poll+0x29/0x1b0\\n[1136314.553462]  net_rx_action+0x133/0x270\\n[1136314.561619]  __do_softirq+0xbe/0x28e\\n[1136314.569303]  do_softirq+0x3f/0x60\\n\\nThis comes from __xdp_return() call with xdp_buff argument passed as\\nNULL which is supposed to be consumed by xsk_buff_free() call.\\n\\nTo address this properly, in ZC case, a node that represents the frag\\nbeing removed has to be pulled out of xskb_list. Introduce\\nappropriate xsk helpers to do such node operation and use them\\naccordingly within bpf_xdp_adjust_tail().\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.15\", \"versionStartIncluding\": \"6.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.3\", \"versionStartIncluding\": \"6.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"6.6\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:52:17.425Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26611\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T08:52:17.425Z\", \"dateReserved\": \"2024-02-19T14:20:24.130Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-29T15:52:16.405Z\", \"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.