{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53102", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-02T15:51:43.553Z", "datePublished": "2025-05-02T15:55:44.444Z", "dateUpdated": "2026-08-05T09:12:47.772Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:12:47.772Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: xsk: disable txq irq before flushing hw\n\nice_qp_dis() intends to stop a given queue pair that is a target of xsk\npool attach/detach. One of the steps is to disable interrupts on these\nqueues. It currently is broken in a way that txq irq is turned off\n*after* HW flush which in turn takes no effect.\n\nice_qp_dis():\n-> ice_qvec_dis_irq()\n--> disable rxq irq\n--> flush hw\n-> ice_vsi_stop_tx_ring()\n-->disable txq irq\n\nBelow splat can be triggered by following steps:\n- start xdpsock WITHOUT loading xdp prog\n- run xdp_rxq_info with XDP_TX action on this interface\n- start traffic\n- terminate xdpsock\n\n[ 256.312485] BUG: kernel NULL pointer dereference, address: 0000000000000018\n[ 256.319560] #PF: supervisor read access in kernel mode\n[ 256.324775] #PF: error_code(0x0000) - not-present page\n[ 256.329994] PGD 0 P4D 0\n[ 256.332574] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[ 256.337006] CPU: 3 PID: 32 Comm: ksoftirqd/3 Tainted: G OE 6.2.0-rc5+ #51\n[ 256.345218] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019\n[ 256.355807] RIP: 0010:ice_clean_rx_irq_zc+0x9c/0x7d0 [ice]\n[ 256.361423] Code: b7 8f 8a 00 00 00 66 39 ca 0f 84 f1 04 00 00 49 8b 47 40 4c 8b 24 d0 41 0f b7 45 04 66 25 ff 3f 66 89 04 24 0f 84 85 02 00 00 <49> 8b 44 24 18 0f b7 14 24 48 05 00 01 00 00 49 89 04 24 49 89 44\n[ 256.380463] RSP: 0018:ffffc900088bfd20 EFLAGS: 00010206\n[ 256.385765] RAX: 000000000000003c RBX: 0000000000000035 RCX: 000000000000067f\n[ 256.393012] RDX: 0000000000000775 RSI: 0000000000000000 RDI: ffff8881deb3ac80\n[ 256.400256] RBP: 000000000000003c R08: ffff889847982710 R09: 0000000000010000\n[ 256.407500] R10: ffffffff82c060c0 R11: 0000000000000004 R12: 0000000000000000\n[ 256.414746] R13: ffff88811165eea0 R14: ffffc9000d255000 R15: ffff888119b37600\n[ 256.421990] FS: 0000000000000000(0000) GS:ffff8897e0cc0000(0000) knlGS:0000000000000000\n[ 256.430207] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 256.436036] CR2: 0000000000000018 CR3: 0000000005c0a006 CR4: 00000000007706e0\n[ 256.443283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 256.450527] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 256.457770] PKRU: 55555554\n[ 256.460529] Call Trace:\n[ 256.463015] \n[ 256.465157] ? ice_xmit_zc+0x6e/0x150 [ice]\n[ 256.469437] ice_napi_poll+0x46d/0x680 [ice]\n[ 256.473815] ? _raw_spin_unlock_irqrestore+0x1b/0x40\n[ 256.478863] __napi_poll+0x29/0x160\n[ 256.482409] net_rx_action+0x136/0x260\n[ 256.486222] __do_softirq+0xe8/0x2e5\n[ 256.489853] ? smpboot_thread_fn+0x2c/0x270\n[ 256.494108] run_ksoftirqd+0x2a/0x50\n[ 256.497747] smpboot_thread_fn+0x1c1/0x270\n[ 256.501907] ? __pfx_smpboot_thread_fn+0x10/0x10\n[ 256.506594] kthread+0xea/0x120\n[ 256.509785] ? __pfx_kthread+0x10/0x10\n[ 256.513597] ret_from_fork+0x29/0x50\n[ 256.517238] \n\nIn fact, irqs were not disabled and napi managed to be scheduled and run\nwhile xsk_pool pointer was still valid, but SW ring of xdp_buff pointers\nwas already freed.\n\nTo fix this, call ice_qvec_dis_irq() after ice_vsi_stop_tx_ring(). Also\nwhile at it, remove redundant ice_clean_rx_ring() call - this is handled\nin ice_qp_clean_rings()." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - Triggered by local AF_XDP socket teardown that reaches ice via ndo_bpf(XDP_SETUP_XSK_POOL) → ice_xsk_pool_setup → ice_qp_dis; remote packets alone cannot invoke this control path.\nAC:L - The attacker controls both sides of the race—binding/closing the XSK socket and generating concurrent RX traffic—so NAPI can be scheduled while ice_qp_dis cleans the ring with IRQs incompletely disabled.\nPR:L - AF_XDP needs only ns_capable(CAP_NET_RAW), and on a host that already has an XDP program on the ice PF (common AF_XDP deployment) that is enough to attach/detach the pool and hit ice_qp_dis; CAP_NET_ADMIN/CAP_BPF for loading XDP is also obtainable in user-ns owned netns scenarios.\nUI:N - The attacker loads or relies on XDP, binds/closes xdpsock, and supplies traffic entirely alone with no separate victim action.\nS:U - Impact is confined to host-kernel ice RX/XSK state within the same OS security authority; no VM escape, IOMMU bypass, or other cross-boundary effect.\nC:H - ice_xsk_clean_rx_ring returns xdp_buffs to the pool while NAPI may still run in ice_clean_rx_irq_zc, creating a use-after-free of xdp_buff objects whose reused contents enable kernel memory disclosure.\nI:H - The same UAF of the SW xdp_buff ring / pooled buffers during NAPI processing is exploitable via heap spray for arbitrary kernel writes and control-flow hijack, matching UAF integrity guidance.\nA:H - The documented result is a kernel NULL-pointer oops in ice_clean_rx_irq_zc (and UAF crashes more generally), which is a full availability loss." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/intel/ice/ice_xsk.c" ], "versions": [ { "version": "2d4238f5569722197612656163d824098208519c", "lessThan": "cccba1ff0798a27f7b8d0c06762ef977400a2afb", "status": "affected", "versionType": "git" }, { "version": "2d4238f5569722197612656163d824098208519c", "lessThan": "b89a453c6918e0f346fb0562e8c7812b94d28c73", "status": "affected", "versionType": "git" }, { "version": "2d4238f5569722197612656163d824098208519c", "lessThan": "2ecc6e44959382f95c9d427cd8da85121a9cecda", "status": "affected", "versionType": "git" }, { "version": "2d4238f5569722197612656163d824098208519c", "lessThan": "243cde8de10894d7812c8a6b62653bf04d8f9700", "status": "affected", "versionType": "git" }, { "version": "2d4238f5569722197612656163d824098208519c", "lessThan": "b830c9642386867863ac64295185f896ff2928ac", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/intel/ice/ice_xsk.c" ], "versions": [ { "version": "5.5", "status": "affected" }, { "version": "0", "lessThan": "5.5", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.176", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.104", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.21", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2.8", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.10.176" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.15.104" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.1.21" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.2.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.3" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/cccba1ff0798a27f7b8d0c06762ef977400a2afb" }, { "url": "https://git.kernel.org/stable/c/b89a453c6918e0f346fb0562e8c7812b94d28c73" }, { "url": "https://git.kernel.org/stable/c/2ecc6e44959382f95c9d427cd8da85121a9cecda" }, { "url": "https://git.kernel.org/stable/c/243cde8de10894d7812c8a6b62653bf04d8f9700" }, { "url": "https://git.kernel.org/stable/c/b830c9642386867863ac64295185f896ff2928ac" } ], "title": "ice: xsk: disable txq irq before flushing hw", "x_generator": { "engine": "bippy-1.2.0" } } } }