{ "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-2022-49082", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49082", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-02-26T01:54:42.101Z", "updatedAt": "2026-05-11T18:52:41.106Z", "importedAt": "2026-10-24T01:56:49.724Z", "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": "scsi: mpt3sas: Fix use after free in _scsih_expander_node_remove()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpt3sas: Fix use after free in _scsih_expander_node_remove()\n\nThe function mpt3sas_transport_port_remove() called in\n_scsih_expander_node_remove() frees the port field of the sas_expander\nstructure, leading to the following use-after-free splat from KASAN when\nthe ioc_info() call following that function is executed (e.g. when doing\nrmmod of the driver module):\n\n[ 3479.371167] ==================================================================\n[ 3479.378496] BUG: KASAN: use-after-free in _scsih_expander_node_remove+0x710/0x750 [mpt3sas]\n[ 3479.386936] Read of size 1 at addr ffff8881c037691c by task rmmod/1531\n[ 3479.393524]\n[ 3479.395035] CPU: 18 PID: 1531 Comm: rmmod Not tainted 5.17.0-rc8+ #1436\n[ 3479.401712] Hardware name: Supermicro Super Server/H12SSL-NT, BIOS 2.1 06/02/2021\n[ 3479.409263] Call Trace:\n[ 3479.411743] \n[ 3479.413875] dump_stack_lvl+0x45/0x59\n[ 3479.417582] print_address_description.constprop.0+0x1f/0x120\n[ 3479.423389] ? _scsih_expander_node_remove+0x710/0x750 [mpt3sas]\n[ 3479.429469] kasan_report.cold+0x83/0xdf\n[ 3479.433438] ? _scsih_expander_node_remove+0x710/0x750 [mpt3sas]\n[ 3479.439514] _scsih_expander_node_remove+0x710/0x750 [mpt3sas]\n[ 3479.445411] ? _raw_spin_unlock_irqrestore+0x2d/0x40\n[ 3479.452032] scsih_remove+0x525/0xc90 [mpt3sas]\n[ 3479.458212] ? mpt3sas_expander_remove+0x1d0/0x1d0 [mpt3sas]\n[ 3479.465529] ? down_write+0xde/0x150\n[ 3479.470746] ? up_write+0x14d/0x460\n[ 3479.475840] ? kernfs_find_ns+0x137/0x310\n[ 3479.481438] pci_device_remove+0x65/0x110\n[ 3479.487013] __device_release_driver+0x316/0x680\n[ 3479.493180] driver_detach+0x1ec/0x2d0\n[ 3479.498499] bus_remove_driver+0xe7/0x2d0\n[ 3479.504081] pci_unregister_driver+0x26/0x250\n[ 3479.510033] _mpt3sas_exit+0x2b/0x6cf [mpt3sas]\n[ 3479.516144] __x64_sys_delete_module+0x2fd/0x510\n[ 3479.522315] ? free_module+0xaa0/0xaa0\n[ 3479.527593] ? __cond_resched+0x1c/0x90\n[ 3479.532951] ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n[ 3479.539607] ? syscall_enter_from_user_mode+0x21/0x70\n[ 3479.546161] ? trace_hardirqs_on+0x1c/0x110\n[ 3479.551828] do_syscall_64+0x35/0x80\n[ 3479.556884] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ 3479.563402] RIP: 0033:0x7f1fc482483b\n...\n[ 3479.943087] ==================================================================\n\nFix this by introducing the local variable port_id to store the port ID\nvalue before executing mpt3sas_transport_port_remove(). This local variable\nis then used in the call to ioc_info() instead of dereferencing the freed\nport structure.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "7d310f241001e090cf1ec0f3ae836b38d8c6ebec", "status": "affected", "versionType": "git", "lessThan": "25c1353dca74ad7cf3fd7ce258fe7c957a147d5e" }, { "version": "7d310f241001e090cf1ec0f3ae836b38d8c6ebec", "status": "affected", "versionType": "git", "lessThan": "17d66b1c92bcb41e72271ec60069d3684aaa1c9c" }, { "version": "7d310f241001e090cf1ec0f3ae836b38d8c6ebec", "status": "affected", "versionType": "git", "lessThan": "1bb8a7fc64d63ec818e367e1b37676ea2ef2d20c" }, { "version": "7d310f241001e090cf1ec0f3ae836b38d8c6ebec", "status": "affected", "versionType": "git", "lessThan": "87d663d40801dffc99a5ad3b0188ad3e2b4d1557" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.11", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.11" }, { "version": "5.15.34", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "5.16.20", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.16.*" }, { "version": "5.17.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.17.*" }, { "version": "5.18", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }