{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2024-26859", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-26859", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2024-04-17T10:27:23.709Z", "updatedAt": "2026-10-15T00:38:51.344Z", "importedAt": "2026-10-24T01:57:07.518Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "net/bnx2x: Prevent access to a freed page in page_pool", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/bnx2x: Prevent access to a freed page in page_pool\n\nFix race condition leading to system crash during EEH error handling\n\nDuring EEH error recovery, the bnx2x driver's transmit timeout logic\ncould cause a race condition when handling reset tasks. The\nbnx2x_tx_timeout() schedules reset tasks via bnx2x_sp_rtnl_task(),\nwhich ultimately leads to bnx2x_nic_unload(). In bnx2x_nic_unload()\nSGEs are freed using bnx2x_free_rx_sge_range(). However, this could\noverlap with the EEH driver's attempt to reset the device using\nbnx2x_io_slot_reset(), which also tries to free SGEs. This race\ncondition can result in system crashes due to accessing freed memory\nlocations in bnx2x_free_rx_sge()\n\n799 static inline void bnx2x_free_rx_sge(struct bnx2x *bp,\n800\t\t\t\tstruct bnx2x_fastpath *fp, u16 index)\n801 {\n802\tstruct sw_rx_page *sw_buf = &fp->rx_page_ring[index];\n803 struct page *page = sw_buf->page;\n....\nwhere sw_buf was set to NULL after the call to dma_unmap_page()\nby the preceding thread.\n\n EEH: Beginning: 'slot_reset'\n PCI 0011:01:00.0#10000: EEH: Invoking bnx2x->slot_reset()\n bnx2x: [bnx2x_io_slot_reset:14228(eth1)]IO slot reset initializing...\n bnx2x 0011:01:00.0: enabling device (0140 -> 0142)\n bnx2x: [bnx2x_io_slot_reset:14244(eth1)]IO slot reset --> driver unload\n Kernel attempted to read user page (0) - exploit attempt? (uid: 0)\n BUG: Kernel NULL pointer dereference on read at 0x00000000\n Faulting instruction address: 0xc0080000025065fc\n Oops: Kernel access of bad area, sig: 11 [#1]\n .....\n Call Trace:\n [c000000003c67a20] [c00800000250658c] bnx2x_io_slot_reset+0x204/0x610 [bnx2x] (unreliable)\n [c000000003c67af0] [c0000000000518a8] eeh_report_reset+0xb8/0xf0\n [c000000003c67b60] [c000000000052130] eeh_pe_report+0x180/0x550\n [c000000003c67c70] [c00000000005318c] eeh_handle_normal_event+0x84c/0xa60\n [c000000003c67d50] [c000000000053a84] eeh_event_handler+0xf4/0x170\n [c000000003c67da0] [c000000000194c58] kthread+0x1c8/0x1d0\n [c000000003c67e10] [c00000000000cf64] ret_from_kernel_thread+0x5c/0x64\n\nTo solve this issue, we need to verify page pool allocations before\nfreeing.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "4cace675d687ebd2d813e90af80ff87ee85202f9", "status": "affected", "versionType": "git", "lessThan": "7bcc090c81116c66936a7415f2c6b1483a4bcfd9" }, { "version": "4cace675d687ebd2d813e90af80ff87ee85202f9", "status": "affected", "versionType": "git", "lessThan": "4f37d3a7e004bbf560c21441ca9c022168017ec4" }, { "version": "4cace675d687ebd2d813e90af80ff87ee85202f9", "status": "affected", "versionType": "git", "lessThan": "8eebff95ce9558be66a36aa7cfb43223f3ab4699" }, { "version": "4cace675d687ebd2d813e90af80ff87ee85202f9", "status": "affected", "versionType": "git", "lessThan": "8ffcd3ccdbda0c918c4a0f922ef1c17010f1b598" }, { "version": "4cace675d687ebd2d813e90af80ff87ee85202f9", "status": "affected", "versionType": "git", "lessThan": "cf7d8cba639ae792a42c2a137b495eac262ac36c" }, { "version": "4cace675d687ebd2d813e90af80ff87ee85202f9", "status": "affected", "versionType": "git", "lessThan": "3a9f78b297e08ca8e88ae3ecff1f6fe2766dc5eb" }, { "version": "4cace675d687ebd2d813e90af80ff87ee85202f9", "status": "affected", "versionType": "git", "lessThan": "c51f8b6930db3f259b8820b589f2459d2df3fc68" }, { "version": "4cace675d687ebd2d813e90af80ff87ee85202f9", "status": "affected", "versionType": "git", "lessThan": "44f9f1abb0ecc43023225ab9539167facbabf0ec" }, { "version": "4cace675d687ebd2d813e90af80ff87ee85202f9", "status": "affected", "versionType": "git", "lessThan": "d27e2da94a42655861ca4baea30c8cd65546f25d" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.2", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.2" }, { "version": "4.19.311", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.273", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.214", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.153", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.83", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.23", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.7.11", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.7.*" }, { "version": "6.8.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.8.*" }, { "version": "6.9", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }