{ "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-2026-80944", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80944", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-09-11T19:42:16.076Z", "updatedAt": "2026-10-19T08:45:28.363Z", "importedAt": "2026-10-24T01:58:30.346Z", "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": "wifi: mwifiex: Detach sync cmd buffer on interrupted wait", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: Detach sync cmd buffer on interrupted wait\n\nmwifiex synchronous commands keep the caller-provided data buffer in\ncmd_node->data_buf. Several callers pass stack-allocated objects there.\n\nIf wait_event_interruptible_timeout() is interrupted, the caller can\nreturn and release that stack object while the firmware command is still\nthe current command. A late firmware response then reaches the normal\nresponse handler, which can copy data through cmd_node->data_buf into the\nstale stack address.\n\nThis fixes a stack corruption observed during repeated association and\ndisassociation cycles. The panic trace showed the command wait being\ninterrupted immediately before a bad pointer dereference:\n\n cmd_wait_q terminated: -512\n Unable to handle kernel paging request at virtual address 002c583837384662\n Kernel panic - not syncing: stack-protector: Kernel stack is corrupted\n ...\n Tainted: [M]=MACHINE_CHECK\n\nThe fault address decodes as little-endian ASCII:\n\n 0x002c583837384662 -> \"bF878X,\\0\"\n\nwhich is a fragment of the VERSION_EXT firmware string exposed as\ndebugfs \"verext\":\n\n w8997o-V4, RF878X, FP92, 16.92.21.p153.7\n\nThe same runs also showed corrupted control data containing:\n\n 0x2400372e333531 -> \"153.7\\0$\"\n\nwhich is the tail of the same VERSION_EXT string. This points at a late\nVERSION_EXT response writing through a stale stack-backed data_buf after\nthe interrupted wait returned.\n\nAfter cancelling pending commands on an interrupted or timed-out wait,\ndetach the caller-owned data buffer from the still-current command. This\npreserves the existing command cancellation behaviour while preventing a\nlate response from writing through a pointer whose lifetime ended with the\nwaiting caller.\n\nTested on an i.MX8MP board using an 88W8997.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "3d026d09b28dda24777129a931634949c75a9181", "status": "affected", "versionType": "git", "lessThan": "8c67b8c50286e0cb7f18d667e6a37a2ec6e08ff9" }, { "version": "3d026d09b28dda24777129a931634949c75a9181", "status": "affected", "versionType": "git", "lessThan": "9024c7729eb523cf4f3a4203966d3a4aaabf030d" }, { "version": "3d026d09b28dda24777129a931634949c75a9181", "status": "affected", "versionType": "git", "lessThan": "9e06c9c8a1f10c55d9bc5d139656d58795e64483" }, { "version": "3d026d09b28dda24777129a931634949c75a9181", "status": "affected", "versionType": "git", "lessThan": "f2134d6ff30cd6e1bf63d6b0a5d8e0839f0168b3" }, { "version": "3d026d09b28dda24777129a931634949c75a9181", "status": "affected", "versionType": "git", "lessThan": "20ee9c03f261bf6ac59331e2ca7b46b23646412a" }, { "version": "3d026d09b28dda24777129a931634949c75a9181", "status": "affected", "versionType": "git", "lessThan": "b1bbeb8970eeb6c6bf3cd5314138103f7b69446d" }, { "version": "3d026d09b28dda24777129a931634949c75a9181", "status": "affected", "versionType": "git", "lessThan": "d29a165588b6a0cf7a38db5cbd602aef7ef8c658" }, { "version": "3d026d09b28dda24777129a931634949c75a9181", "status": "affected", "versionType": "git", "lessThan": "ef06882c7d8a7400b67d0d003b1008093dd589ed" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "3.15", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "3.15" }, { "version": "5.10.270", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.221", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.188", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.157", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.109", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.18.50", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "7.2.4", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "7.2.*" }, { "version": "7.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }