{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-40907", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-12T12:17:45.580Z", "datePublished": "2024-07-12T12:20:47.151Z", "dateUpdated": "2026-08-05T11:33:55.631Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:33:55.631Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nionic: fix kernel panic in XDP_TX action\n\nIn the XDP_TX path, ionic driver sends a packet to the TX path with rx\npage and corresponding dma address.\nAfter tx is done, ionic_tx_clean() frees that page.\nBut RX ring buffer isn't reset to NULL.\nSo, it uses a freed page, which causes kernel panic.\n\nBUG: unable to handle page fault for address: ffff8881576c110c\nPGD 773801067 P4D 773801067 PUD 87f086067 PMD 87efca067 PTE 800ffffea893e060\nOops: Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN NOPTI\nCPU: 1 PID: 25 Comm: ksoftirqd/1 Not tainted 6.9.0+ #11\nHardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\nRIP: 0010:bpf_prog_f0b8caeac1068a55_balancer_ingress+0x3b/0x44f\nCode: 00 53 41 55 41 56 41 57 b8 01 00 00 00 48 8b 5f 08 4c 8b 77 00 4c 89 f7 48 83 c7 0e 48 39 d8\nRSP: 0018:ffff888104e6fa28 EFLAGS: 00010283\nRAX: 0000000000000002 RBX: ffff8881576c1140 RCX: 0000000000000002\nRDX: ffffffffc0051f64 RSI: ffffc90002d33048 RDI: ffff8881576c110e\nRBP: ffff888104e6fa88 R08: 0000000000000000 R09: ffffed1027a04a23\nR10: 0000000000000000 R11: 0000000000000000 R12: ffff8881b03a21a8\nR13: ffff8881589f800f R14: ffff8881576c1100 R15: 00000001576c1100\nFS: 0000000000000000(0000) GS:ffff88881ae00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffff8881576c110c CR3: 0000000767a90000 CR4: 00000000007506f0\nPKRU: 55555554\nCall Trace:\n\n? __die+0x20/0x70\n? page_fault_oops+0x254/0x790\n? __pfx_page_fault_oops+0x10/0x10\n? __pfx_is_prefetch.constprop.0+0x10/0x10\n? search_bpf_extables+0x165/0x260\n? fixup_exception+0x4a/0x970\n? exc_page_fault+0xcb/0xe0\n? asm_exc_page_fault+0x22/0x30\n? 0xffffffffc0051f64\n? bpf_prog_f0b8caeac1068a55_balancer_ingress+0x3b/0x44f\n? do_raw_spin_unlock+0x54/0x220\nionic_rx_service+0x11ab/0x3010 [ionic 9180c3001ab627d82bbc5f3ebe8a0decaf6bb864]\n? ionic_tx_clean+0x29b/0xc60 [ionic 9180c3001ab627d82bbc5f3ebe8a0decaf6bb864]\n? __pfx_ionic_tx_clean+0x10/0x10 [ionic 9180c3001ab627d82bbc5f3ebe8a0decaf6bb864]\n? __pfx_ionic_rx_service+0x10/0x10 [ionic 9180c3001ab627d82bbc5f3ebe8a0decaf6bb864]\n? ionic_tx_cq_service+0x25d/0xa00 [ionic 9180c3001ab627d82bbc5f3ebe8a0decaf6bb864]\n? __pfx_ionic_rx_service+0x10/0x10 [ionic 9180c3001ab627d82bbc5f3ebe8a0decaf6bb864]\nionic_cq_service+0x69/0x150 [ionic 9180c3001ab627d82bbc5f3ebe8a0decaf6bb864]\nionic_txrx_napi+0x11a/0x540 [ionic 9180c3001ab627d82bbc5f3ebe8a0decaf6bb864]\n__napi_poll.constprop.0+0xa0/0x440\nnet_rx_action+0x7e7/0xc30\n? __pfx_net_rx_action+0x10/0x10" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "scenarios": [ { "lang": "en", "value": "AV:N - The vulnerability is triggered purely by processing a received Ethernet frame in the ionic NAPI RX path, below the IP stack, whenever the attached XDP program returns XDP_TX. A remote attacker anywhere reachable by the NIC (e.g. an internet-facing XDP load balancer, the driver's primary XDP_TX use case) triggers it by sending packets.\nAC:L - There is no race to win and no dependence on memory layout the attacker cannot influence — every packet the XDP program answers with XDP_TX deterministically leaks the RX slot, and the attacker controls the packet contents that drive that verdict. Repeating it drains and corrupts the RX ring reliably.\nPR:N - The path from packet arrival to ionic_run_xdp() contains no authentication, socket binding, or capability check whatsoever; it executes in softirq/NAPI context before any protocol-level authorization. Attaching the XDP program is an administrator's prior configuration, not an attacker prerequisite.\nUI:N - No local user action is needed — the bug fires automatically during NAPI processing of an attacker-sent packet.\nS:U - The use-after-free, the stale DMA write, and the resulting corruption all occur within the kernel's own memory and security authority, with no crossing into a hypervisor or other security scope.\nC:H - The freed page stays in the RX ring, so its contents — by then reallocated to arbitrary kernel objects — are read by bpf_prog_run_xdp() and copied into skbs that are delivered up the stack or retransmitted, exposing kernel memory to the attacker. Use-after-free reads of this kind constitute a high-impact disclosure primitive.\nI:H - The NIC continues DMA-ing attacker-controlled packet payload into the page after it has been freed and recycled by the page allocator, giving a remote write of controlled data into arbitrary reallocated kernel objects; the stale slot also yields a double free via ionic_rx_page_free()/ionic_rx_empty().\nA:H - The fix is titled \"fix kernel panic in XDP_TX action\" and the commit carries a reproduced oops (page fault in the BPF program from ionic_rx_service), i.e. a repeatable remote kernel crash." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/pensando/ionic/ionic_txrx.c" ], "versions": [ { "version": "8eeed8373e1cca836799bf8e4a05cffa8e444908", "lessThan": "8812aa35f3e930f61074b9c1ecea26f354992c21", "status": "affected", "versionType": "git" }, { "version": "8eeed8373e1cca836799bf8e4a05cffa8e444908", "lessThan": "491aee894a08bc9b8bb52e7363b9d4bc6403f363", "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/pensando/ionic/ionic_txrx.c" ], "versions": [ { "version": "6.9", "status": "affected" }, { "version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.6", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "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": "6.9", "versionEndExcluding": "6.9.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/8812aa35f3e930f61074b9c1ecea26f354992c21" }, { "url": "https://git.kernel.org/stable/c/491aee894a08bc9b8bb52e7363b9d4bc6403f363" } ], "title": "ionic: fix kernel panic in XDP_TX action", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:39:55.283Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/8812aa35f3e930f61074b9c1ecea26f354992c21", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/491aee894a08bc9b8bb52e7363b9d4bc6403f363", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-40907", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T17:06:15.613289Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:37.786Z" } } ] } }