CVE-2026-74317 (GCVE-0-2026-74317)
Vulnerability from cvelistv5
Published
2026-08-15 05:58
Modified
2026-10-21 12:45
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ixgbe: do not configure xps for XDP queues netif_set_xps_queue() should not be called for an XDP Tx queue, since such queues are not netdev-exposed. On systems with number of CPUs >=64, on E610 adapter, netdev is configured with maximum number queue pairs being 63 (due to MSI-X assignment), but configuring XDP results in 64 XDP queues. So, during XDP program load, when netif_set_xps_queue() is called for the last XDP queue, we get a WARNING with a call trace and KASAN report afterwards (if enabled). [ 2012.699800] WARNING: net/core/dev.c:2854 at __netif_set_xps_queue+0x116a/0x1e40, CPU#36: xdpsock/103668 [...] [ 2012.700029] RIP: 0010:__netif_set_xps_queue+0x116a/0x1e40 [ 2012.700035] Code: b6 34 06 48 89 f8 83 e0 07 83 c0 01 40 38 f0 7c 09 40 84 f6 0f 85 03 0a 00 00 0f b7 44 24 40 66 43 89 44 6a 18 e9 01 fb ff ff <0f> 0b e9 f2 ee ff ff 44 8b 44 24 44 45 85 c0 74 50 4d 85 e4 0f 84 [ 2012.700040] RSP: 0018:ffff8882369aeb28 EFLAGS: 00010246 [ 2012.700046] RAX: 0000000000000000 RBX: 000000000000003f RCX: 0000000000000000 [ 2012.700050] RDX: 1ffff1111da3d891 RSI: ffff888120e34250 RDI: ffff8888ed1ec488 [ 2012.700054] RBP: ffff888913281560 R08: 0000000000000000 R09: ffff8888ed1ec000 [ 2012.700058] R10: ffff8888a2e83180 R11: 0000000000000000 R12: 0000000000007fa8 [ 2012.700061] R13: 000000000000003f R14: ffff888120e34854 R15: ffff8889132817c8 [ 2012.700065] FS: 00007fc8ea9ff740(0000) GS:ffff88884cefe000(0000) knlGS:0000000000000000 [ 2012.700069] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2012.700073] CR2: 00007f81c8000020 CR3: 00000002299f8006 CR4: 00000000007726f0 [ 2012.700077] PKRU: 55555554 [ 2012.700080] Call Trace: [ 2012.700084] <TASK> [ 2012.700087] ? ktime_get+0x61/0x150 [ 2012.700097] ? usleep_range_state+0x133/0x1b0 [ 2012.700108] ? __pfx_usleep_range_state+0x10/0x10 [ 2012.700114] netif_set_xps_queue+0x31/0x50 [ 2012.700119] ixgbe_configure_tx_ring+0x472/0x920 [ixgbe] [...] [ 2012.700486] ixgbe_xdp+0x38f/0x750 [ixgbe] [...] [ 2012.701094] BUG: KASAN: slab-out-of-bounds in __netif_set_xps_queue+0x1ac5/0x1e40 [ 2012.701100] Write of size 4 at addr ffff88888d43cff8 by task xdpsock/103668 Skip XPS configuration for XDP Tx queues.
References
Impacted products
Vendor Product Version
Linux Linux Version: 33fdc82f08835de4c39a00657742f5b11db00d32
Version: 33fdc82f08835de4c39a00657742f5b11db00d32
Version: 33fdc82f08835de4c39a00657742f5b11db00d32
Version: 33fdc82f08835de4c39a00657742f5b11db00d32
Version: 33fdc82f08835de4c39a00657742f5b11db00d32
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                "timestamp": "2026-10-16T18:53:18.226836Z",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nixgbe: do not configure xps for XDP queues\n\nnetif_set_xps_queue() should not be called for an XDP Tx queue, since such\nqueues are not netdev-exposed. On systems with number of CPUs \u003e=64, on E610\nadapter, netdev is configured with maximum number queue pairs being 63\n(due to MSI-X assignment), but configuring XDP results in 64 XDP queues.\n\nSo, during XDP program load, when netif_set_xps_queue() is called for the\nlast XDP queue, we get a WARNING with a call trace and KASAN report\nafterwards (if enabled).\n\n[ 2012.699800] WARNING: net/core/dev.c:2854 at __netif_set_xps_queue+0x116a/0x1e40, CPU#36: xdpsock/103668\n[...]\n[ 2012.700029] RIP: 0010:__netif_set_xps_queue+0x116a/0x1e40\n[ 2012.700035] Code: b6 34 06 48 89 f8 83 e0 07 83 c0 01 40 38 f0 7c 09 40 84 f6 0f 85 03 0a 00 00 0f b7 44 24 40 66 43 89 44 6a 18 e9 01 fb ff ff \u003c0f\u003e 0b e9 f2 ee ff ff 44 8b 44 24 44 45 85 c0 74 50 4d 85 e4 0f 84\n[ 2012.700040] RSP: 0018:ffff8882369aeb28 EFLAGS: 00010246\n[ 2012.700046] RAX: 0000000000000000 RBX: 000000000000003f RCX: 0000000000000000\n[ 2012.700050] RDX: 1ffff1111da3d891 RSI: ffff888120e34250 RDI: ffff8888ed1ec488\n[ 2012.700054] RBP: ffff888913281560 R08: 0000000000000000 R09: ffff8888ed1ec000\n[ 2012.700058] R10: ffff8888a2e83180 R11: 0000000000000000 R12: 0000000000007fa8\n[ 2012.700061] R13: 000000000000003f R14: ffff888120e34854 R15: ffff8889132817c8\n[ 2012.700065] FS:  00007fc8ea9ff740(0000) GS:ffff88884cefe000(0000) knlGS:0000000000000000\n[ 2012.700069] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 2012.700073] CR2: 00007f81c8000020 CR3: 00000002299f8006 CR4: 00000000007726f0\n[ 2012.700077] PKRU: 55555554\n[ 2012.700080] Call Trace:\n[ 2012.700084]  \u003cTASK\u003e\n[ 2012.700087]  ? ktime_get+0x61/0x150\n[ 2012.700097]  ? usleep_range_state+0x133/0x1b0\n[ 2012.700108]  ? __pfx_usleep_range_state+0x10/0x10\n[ 2012.700114]  netif_set_xps_queue+0x31/0x50\n[ 2012.700119]  ixgbe_configure_tx_ring+0x472/0x920 [ixgbe]\n[...]\n[ 2012.700486]  ixgbe_xdp+0x38f/0x750 [ixgbe]\n\n[...]\n\n[ 2012.701094] BUG: KASAN: slab-out-of-bounds in __netif_set_xps_queue+0x1ac5/0x1e40\n[ 2012.701100] Write of size 4 at addr ffff88888d43cff8 by task xdpsock/103668\n\nSkip XPS configuration for XDP Tx queues."
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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              "value": "AV:L - The bug is reached only via local kernel interfaces (bpf syscall/RTNETLINK IFLA_XDP_FD or AF_XDP setup) that attach an XDP program to an ixgbe netdev, calling ixgbe_xdp_setup() -\u003e ixgbe_configure_tx_ring() -\u003e netif_set_xps_queue(); it is not triggered by remote network packets.\nAC:L - On ixgbe with 64+ CPUs, loading any XDP program deterministically configures all XDP Tx rings including queue_index 63 while netdev-\u003enum_tx_queues stays 63, reliably triggering the out-of-bounds write in __netif_set_xps_queue() without races or attacker-uncontrollable timing.\nPR:L - Reaching ixgbe_xdp()/ndo_bpf requires CAP_NET_ADMIN to load/attach BPF_PROG_TYPE_XDP via bpf() or rtnl_setlink; per kernel CNA guidance CAP_NET_ADMIN is scored as Low because it is obtainable by unprivileged users inside a user/network namespace (unshare -Urn).\nUI:N - Exploitation requires only the attacker to load an XDP program on the ixgbe interface; no victim user action such as opening files, clicking links, or mounting filesystems is needed.\nS:U - The out-of-bounds write corrupts kernel netdev/XPS metadata in the same kernel security domain as the attacker; it does not cross VM, container, or IOMMU boundaries to impact a separate authority.\nC:H - KASAN reports a slab out-of-bounds 4-byte write in __netif_set_xps_queue() via netdev_get_tx_queue(dev, index) when index equals num_tx_queues; kernel heap corruption can be leveraged for further memory disclosure even though the immediate fault is a write.\nI:H - The vulnerability is an out-of-bounds write past the netdev-\u003e_tx[] array (writing netdev_queue-\u003enuma_node), constituting kernel memory corruption that can potentially be developed into arbitrary write or control-flow hijack primitives.\nA:H - Triggering the bug emits a kernel WARNING and KASAN slab-out-of-bounds report during XDP program load; the corrupting write can panic/oops the system or destabilize the ixgbe driver on production kernels without KASAN."
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/ec485257ccbc787bcde0271d6f649c9018ffb363"
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        {
          "url": "https://git.kernel.org/stable/c/7bd4355272de34c2e90e34b72c5613736d03c32b"
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      "title": "ixgbe: do not configure xps for XDP queues",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74317",
    "datePublished": "2026-08-15T05:58:14.832Z",
    "dateReserved": "2026-08-15T05:44:03.884Z",
    "dateUpdated": "2026-10-21T12:45:20.279Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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it is not triggered by remote network packets.\\nAC:L - On ixgbe with 64+ CPUs, loading any XDP program deterministically configures all XDP Tx rings including queue_index 63 while netdev-\u003enum_tx_queues stays 63, reliably triggering the out-of-bounds write in __netif_set_xps_queue() without races or attacker-uncontrollable timing.\\nPR:L - Reaching ixgbe_xdp()/ndo_bpf requires CAP_NET_ADMIN to load/attach BPF_PROG_TYPE_XDP via bpf() or rtnl_setlink; per kernel CNA guidance CAP_NET_ADMIN is scored as Low because it is obtainable by unprivileged users inside a user/network namespace (unshare -Urn).\\nUI:N - Exploitation requires only the attacker to load an XDP program on the ixgbe interface; no victim user action such as opening files, clicking links, or mounting filesystems is needed.\\nS:U - The out-of-bounds write corrupts kernel netdev/XPS metadata in the same kernel security domain as the attacker; it does not cross VM, container, or IOMMU boundaries to impact a separate authority.\\nC:H - KASAN reports a slab out-of-bounds 4-byte write in __netif_set_xps_queue() via netdev_get_tx_queue(dev, index) when index equals num_tx_queues; kernel heap corruption can be leveraged for further memory disclosure even though the immediate fault is a write.\\nI:H - The vulnerability is an out-of-bounds write past the netdev-\u003e_tx[] array (writing netdev_queue-\u003enuma_node), constituting kernel memory corruption that can potentially be developed into arbitrary write or control-flow hijack primitives.\\nA:H - Triggering the bug emits a kernel WARNING and KASAN slab-out-of-bounds report during XDP program load; the corrupting write can panic/oops the system or destabilize the ixgbe driver on production kernels without KASAN.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"33fdc82f08835de4c39a00657742f5b11db00d32\", \"lessThan\": \"ec485257ccbc787bcde0271d6f649c9018ffb363\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"33fdc82f08835de4c39a00657742f5b11db00d32\", \"lessThan\": \"706e811380909a709332136001fe31f37575ef53\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"33fdc82f08835de4c39a00657742f5b11db00d32\", \"lessThan\": \"f488b83a38103e8eea442cd8fa1a10f982bd60af\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"33fdc82f08835de4c39a00657742f5b11db00d32\", \"lessThan\": \"a2a224f5e344ccb1ec3693a0735822db9214e2ca\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"33fdc82f08835de4c39a00657742f5b11db00d32\", \"lessThan\": \"7bd4355272de34c2e90e34b72c5613736d03c32b\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ethernet/intel/ixgbe/ixgbe_main.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.12\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.12\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.160\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.114\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18.57\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"7.1.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.1.*\"}, {\"status\": \"unaffected\", \"version\": \"7.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/intel/ixgbe/ixgbe_main.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/ec485257ccbc787bcde0271d6f649c9018ffb363\"}, {\"url\": \"https://git.kernel.org/stable/c/706e811380909a709332136001fe31f37575ef53\"}, {\"url\": \"https://git.kernel.org/stable/c/f488b83a38103e8eea442cd8fa1a10f982bd60af\"}, {\"url\": \"https://git.kernel.org/stable/c/a2a224f5e344ccb1ec3693a0735822db9214e2ca\"}, {\"url\": \"https://git.kernel.org/stable/c/7bd4355272de34c2e90e34b72c5613736d03c32b\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nixgbe: do not configure xps for XDP queues\\n\\nnetif_set_xps_queue() should not be called for an XDP Tx queue, since such\\nqueues are not netdev-exposed. On systems with number of CPUs \u003e=64, on E610\\nadapter, netdev is configured with maximum number queue pairs being 63\\n(due to MSI-X assignment), but configuring XDP results in 64 XDP queues.\\n\\nSo, during XDP program load, when netif_set_xps_queue() is called for the\\nlast XDP queue, we get a WARNING with a call trace and KASAN report\\nafterwards (if enabled).\\n\\n[ 2012.699800] WARNING: net/core/dev.c:2854 at __netif_set_xps_queue+0x116a/0x1e40, CPU#36: xdpsock/103668\\n[...]\\n[ 2012.700029] RIP: 0010:__netif_set_xps_queue+0x116a/0x1e40\\n[ 2012.700035] Code: b6 34 06 48 89 f8 83 e0 07 83 c0 01 40 38 f0 7c 09 40 84 f6 0f 85 03 0a 00 00 0f b7 44 24 40 66 43 89 44 6a 18 e9 01 fb ff ff \u003c0f\u003e 0b e9 f2 ee ff ff 44 8b 44 24 44 45 85 c0 74 50 4d 85 e4 0f 84\\n[ 2012.700040] RSP: 0018:ffff8882369aeb28 EFLAGS: 00010246\\n[ 2012.700046] RAX: 0000000000000000 RBX: 000000000000003f RCX: 0000000000000000\\n[ 2012.700050] RDX: 1ffff1111da3d891 RSI: ffff888120e34250 RDI: ffff8888ed1ec488\\n[ 2012.700054] RBP: ffff888913281560 R08: 0000000000000000 R09: ffff8888ed1ec000\\n[ 2012.700058] R10: ffff8888a2e83180 R11: 0000000000000000 R12: 0000000000007fa8\\n[ 2012.700061] R13: 000000000000003f R14: ffff888120e34854 R15: ffff8889132817c8\\n[ 2012.700065] FS:  00007fc8ea9ff740(0000) GS:ffff88884cefe000(0000) knlGS:0000000000000000\\n[ 2012.700069] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[ 2012.700073] CR2: 00007f81c8000020 CR3: 00000002299f8006 CR4: 00000000007726f0\\n[ 2012.700077] PKRU: 55555554\\n[ 2012.700080] Call Trace:\\n[ 2012.700084]  \u003cTASK\u003e\\n[ 2012.700087]  ? ktime_get+0x61/0x150\\n[ 2012.700097]  ? usleep_range_state+0x133/0x1b0\\n[ 2012.700108]  ? __pfx_usleep_range_state+0x10/0x10\\n[ 2012.700114]  netif_set_xps_queue+0x31/0x50\\n[ 2012.700119]  ixgbe_configure_tx_ring+0x472/0x920 [ixgbe]\\n[...]\\n[ 2012.700486]  ixgbe_xdp+0x38f/0x750 [ixgbe]\\n\\n[...]\\n\\n[ 2012.701094] BUG: KASAN: slab-out-of-bounds in __netif_set_xps_queue+0x1ac5/0x1e40\\n[ 2012.701100] Write of size 4 at addr ffff88888d43cff8 by task xdpsock/103668\\n\\nSkip XPS configuration for XDP Tx queues.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.160\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.114\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.57\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.1.5\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.2\", \"versionStartIncluding\": \"4.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-10-21T12:45:20.279Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-74317\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-21T12:45:20.279Z\", \"dateReserved\": \"2026-08-15T05:44:03.884Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-08-15T05:58:14.832Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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