{ "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-2026-89880", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89880", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-09-16T10:31:46.260Z", "updatedAt": "2026-10-19T08:54:13.058Z", "importedAt": "2026-10-24T01:58:35.090Z", "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": "media: rtl2832_sdr: release URBs and stream buffers on start_streaming() failure", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: rtl2832_sdr: release URBs and stream buffers on start_streaming() failure\n\nrtl2832_sdr_start_streaming() calls rtl2832_sdr_alloc_stream_bufs(),\nrtl2832_sdr_alloc_urbs() and rtl2832_sdr_submit_urbs() in sequence and\nshares a single err: label that only unlocks the mutex and returns.\nWhen alloc_urbs() succeeds but submit_urbs() fails, or when alloc_urbs()\nitself returns -ENOMEM after alloc_stream_bufs() has already succeeded,\nthe URBs and/or the coherent DMA stream buffers stay allocated while\nstreaming reports failure to vb2. Two latent defects follow on the next\nVIDIOC_STREAMON:\n\n1) rtl2832_sdr_alloc_stream_bufs() unconditionally resets dev->buf_num\n to 0 and overwrites dev->buf_list[]/dev->dma_addr[], permanently\n leaking the coherent DMA memory allocated by the previous attempt.\n\n2) rtl2832_sdr_alloc_urbs() never resets dev->urbs_initialized and only\n increments it. After a second successful pass urbs_initialized can\n exceed MAX_BULK_BUFS, so the subsequent rtl2832_sdr_free_urbs() walks\n from urbs_initialized - 1 down to 0 and reads past the end of\n dev->urb_list[], passing garbage pointers to usb_free_urb().\n\nMirror the teardown that stop_streaming() already performs: on the error\npath call rtl2832_sdr_free_urbs() and rtl2832_sdr_free_stream_bufs()\nbefore unlocking. Both helpers are idempotent (free_urbs kills and zeros\nurbs_initialized; free_stream_bufs is gated on URB_BUF and clears the\nbuf_num counter), so partial-failure paths and the no-allocation paths\nremain safe.\n\nIssue identified by automated review of the INV-003 series at\nhttps://sashiko.dev/", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "771138920eafa399f68d3492c8a75dfeea23474b", "status": "affected", "versionType": "git", "lessThan": "f14a713a36a5c87568430e9770896f2a8f5bbbb7" }, { "version": "771138920eafa399f68d3492c8a75dfeea23474b", "status": "affected", "versionType": "git", "lessThan": "c819dea3a433ae790b829443fdcc1715d1586560" }, { "version": "771138920eafa399f68d3492c8a75dfeea23474b", "status": "affected", "versionType": "git", "lessThan": "0337ab0759285076a3f9dcfcc40906e69ab519b3" }, { "version": "771138920eafa399f68d3492c8a75dfeea23474b", "status": "affected", "versionType": "git", "lessThan": "c91e8ae2b39c6da81f26f2c9877d3fd33a4465ce" }, { "version": "771138920eafa399f68d3492c8a75dfeea23474b", "status": "affected", "versionType": "git", "lessThan": "8bcf11a239eac4e224ad856277de9a36c91b1711" }, { "version": "771138920eafa399f68d3492c8a75dfeea23474b", "status": "affected", "versionType": "git", "lessThan": "26a2a985bbeee3eaa6f80ff7de732161a171ec9f" }, { "version": "771138920eafa399f68d3492c8a75dfeea23474b", "status": "affected", "versionType": "git", "lessThan": "ac02b2c56ccef0788cea9b86990a8f349a3fc6d8" }, { "version": "771138920eafa399f68d3492c8a75dfeea23474b", "status": "affected", "versionType": "git", "lessThan": "fe50cdaebf12cd32ff9a44d92bfd6fbc2300dbd4" } ] }, { "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": "6.12.110", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.18.51", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "7.2.5", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "7.2.*" }, { "version": "7.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }