{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-53209", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-11-19T17:17:25.020Z", "datePublished": "2024-12-27T13:49:55.269Z", "dateUpdated": "2026-08-05T11:44:39.127Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:44:39.127Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix receive ring space parameters when XDP is active\n\nThe MTU setting at the time an XDP multi-buffer is attached\ndetermines whether the aggregation ring will be used and the\nrx_skb_func handler. This is done in bnxt_set_rx_skb_mode().\n\nIf the MTU is later changed, the aggregation ring setting may need\nto be changed and it may become out-of-sync with the settings\ninitially done in bnxt_set_rx_skb_mode(). This may result in\nrandom memory corruption and crashes as the HW may DMA data larger\nthan the allocated buffer size, such as:\n\nBUG: kernel NULL pointer dereference, address: 00000000000003c0\nPGD 0 P4D 0\nOops: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 17 PID: 0 Comm: swapper/17 Kdump: loaded Tainted: G S OE 6.1.0-226bf9805506 #1\nHardware name: Wiwynn Delta Lake PVT BZA.02601.0150/Delta Lake-Class1, BIOS F0E_3A12 08/26/2021\nRIP: 0010:bnxt_rx_pkt+0xe97/0x1ae0 [bnxt_en]\nCode: 8b 95 70 ff ff ff 4c 8b 9d 48 ff ff ff 66 41 89 87 b4 00 00 00 e9 0b f7 ff ff 0f b7 43 0a 49 8b 95 a8 04 00 00 25 ff 0f 00 00 <0f> b7 14 42 48 c1 e2 06 49 03 95 a0 04 00 00 0f b6 42 33f\nRSP: 0018:ffffa19f40cc0d18 EFLAGS: 00010202\nRAX: 00000000000001e0 RBX: ffff8e2c805c6100 RCX: 00000000000007ff\nRDX: 0000000000000000 RSI: ffff8e2c271ab990 RDI: ffff8e2c84f12380\nRBP: ffffa19f40cc0e48 R08: 000000000001000d R09: 974ea2fcddfa4cbf\nR10: 0000000000000000 R11: ffffa19f40cc0ff8 R12: ffff8e2c94b58980\nR13: ffff8e2c952d6600 R14: 0000000000000016 R15: ffff8e2c271ab990\nFS: 0000000000000000(0000) GS:ffff8e3b3f840000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000000003c0 CR3: 0000000e8580a004 CR4: 00000000007706e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n \n __bnxt_poll_work+0x1c2/0x3e0 [bnxt_en]\n\nTo address the issue, we now call bnxt_set_rx_skb_mode() within\nbnxt_change_mtu() to properly set the AGG rings configuration and\nupdate rx_skb_func based on the new MTU value.\nAdditionally, BNXT_FLAG_NO_AGG_RINGS is cleared at the beginning of\nbnxt_set_rx_skb_mode() to make sure it gets set or cleared based on\nthe current MTU." } ], "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 corruption occurs in `bnxt_rx_pkt()`/`__bnxt_poll_work()` while processing frames received from the wire, with the NIC DMA-ing attacker-supplied packet bytes beyond the allocated RX page. Jumbo-sized frames reach bnxt NICs across routed datacenter/cloud fabrics, so no local or adjacent access is required.\nAC:L - Once the driver is in the out-of-sync state, every sufficiently large received frame deterministically causes the HW to DMA past the 4 KB page or hit the unallocated aggregation ring — no race, no memory-layout guessing, no timing window the attacker must win.\nPR:N - The attacker only needs to send Ethernet frames to the target interface; no account, authentication, or privilege on the victim system is involved in reaching `bnxt_rx_pkt()`.\nUI:N - Packet reception is handled autonomously in NAPI/softirq context with no action by any local user or administrator at exploitation time.\nS:U - The out-of-bounds DMA and the oops both corrupt host kernel memory within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The overflow smashes adjacent page-pool/kernel heap memory, and the resulting corrupted `skb`/page state can be leveraged to place kernel memory contents into attacker-visible buffers, giving effectively arbitrary kernel information disclosure.\nI:H - The NIC writes up to ~5 KB of fully attacker-controlled packet data past the end of a page-pool page — an out-of-bounds write with attacker-chosen contents and length, the strongest form of kernel memory-corruption/control-flow-hijack primitive.\nA:H - The commit documents a kernel oops (`BUG: kernel NULL pointer dereference` at `bnxt_rx_pkt+0xe97`) in IRQ context, and the DMA overrun causes random memory corruption and crashes, i.e. full system denial of service." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/broadcom/bnxt/bnxt.c" ], "versions": [ { "version": "421e02bda0570eeb11636544fe97ec3097d1bb92", "lessThan": "b7fd784d7c6a1bd927a23e0d06f09a776ee3889b", "status": "affected", "versionType": "git" }, { "version": "08450ea98ae98d5a35145b675b76db616046ea11", "lessThan": "7f306c651feab2f3689185f60b94e72b573255db", "status": "affected", "versionType": "git" }, { "version": "08450ea98ae98d5a35145b675b76db616046ea11", "lessThan": "bf54a7660fc8d2166f41ff1d67a643b15d8b2250", "status": "affected", "versionType": "git" }, { "version": "08450ea98ae98d5a35145b675b76db616046ea11", "lessThan": "84353386762a0a16dd444ead76c012e167d89b41", "status": "affected", "versionType": "git" }, { "version": "08450ea98ae98d5a35145b675b76db616046ea11", "lessThan": "3051a77a09dfe3022aa012071346937fdf059033", "status": "affected", "versionType": "git" }, { "version": "893096a7e5fd61cb666b4ead2fa69324e1f2aade", "status": "affected", "versionType": "git" }, { "version": "6.1.45", "lessThan": "6.1.140", "status": "affected", "versionType": "semver" }, { "version": "6.4.10", "lessThan": "6.5", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/broadcom/bnxt/bnxt.c" ], "versions": [ { "version": "6.5", "status": "affected" }, { "version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.140", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.85", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.11", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.2", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13", "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": "6.1.45", "versionEndExcluding": "6.1.140" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.6.85" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.11.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.12.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/b7fd784d7c6a1bd927a23e0d06f09a776ee3889b" }, { "url": "https://git.kernel.org/stable/c/7f306c651feab2f3689185f60b94e72b573255db" }, { "url": "https://git.kernel.org/stable/c/bf54a7660fc8d2166f41ff1d67a643b15d8b2250" }, { "url": "https://git.kernel.org/stable/c/84353386762a0a16dd444ead76c012e167d89b41" }, { "url": "https://git.kernel.org/stable/c/3051a77a09dfe3022aa012071346937fdf059033" } ], "title": "bnxt_en: Fix receive ring space parameters when XDP is active", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:32:03.537Z" } } ] } }