CVE-2026-89871

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89871", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.772Z", "datePublished": "2026-09-16T10:31:39.961Z", "dateUpdated": "2026-10-19T08:54:04.386Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:54:04.386Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: video-i2c: fix kthread error pointer left in kthread_vid_cap on failure\n\nkthread_run() returns an ERR_PTR on failure, not NULL.\nWhen start_streaming() fails, data->kthread_vid_cap is left holding\nthis error pointer instead of being cleared.\n\nThis causes two subsequent bugs:\n1. A future call to start_streaming() sees a non-NULL kthread_vid_cap\n and returns 0 (success) immediately, without actually starting the\n capture thread.\n2. A call to stop_streaming() checks 'kthread_vid_cap == NULL' which\n is false for an error pointer, and proceeds to call kthread_stop()\n on the error pointer, leading to a kernel crash.\n\nFix this by resetting kthread_vid_cap to NULL on failure before\njumping to the error path."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/i2c/video-i2c.c"], "versions": [{"version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "lessThan": "db0f4531aa55cfb0171684ebfffe3ff04b79d5a8", "status": "affected", "versionType": "git"}, {"version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "lessThan": "0fac63cac6689588da530764ccb6ba55ee8e4d8b", "status": "affected", "versionType": "git"}, {"version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "lessThan": "5c35d380bea60503c4fe0986fe1de6a3263282b3", "status": "affected", "versionType": "git"}, {"version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "lessThan": "3d1b10d81fe54852ed953f4129577b733bbd6907", "status": "affected", "versionType": "git"}, {"version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "lessThan": "968c5213e34c48d35febdfd09cf3dc58ad039140", "status": "affected", "versionType": "git"}, {"version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "lessThan": "52fd9d80c0cea7bf09e7ee36cad316e5c39b7fe6", "status": "affected", "versionType": "git"}, {"version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "lessThan": "0e7f2cd72a4f9268ee09a13b13f3339e7cc71557", "status": "affected", "versionType": "git"}, {"version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "lessThan": "76e379754ba618989f6215be608d5c04774a611d", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/i2c/video-i2c.c"], "versions": [{"version": "4.18", "status": "affected"}, {"version": "0", "lessThan": "4.18", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.51", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.5", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "4.18", "versionEndExcluding": "5.10.270"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "5.15.221"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "6.18.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "7.2.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/db0f4531aa55cfb0171684ebfffe3ff04b79d5a8"}, {"url": "https://git.kernel.org/stable/c/0fac63cac6689588da530764ccb6ba55ee8e4d8b"}, {"url": "https://git.kernel.org/stable/c/5c35d380bea60503c4fe0986fe1de6a3263282b3"}, {"url": "https://git.kernel.org/stable/c/3d1b10d81fe54852ed953f4129577b733bbd6907"}, {"url": "https://git.kernel.org/stable/c/968c5213e34c48d35febdfd09cf3dc58ad039140"}, {"url": "https://git.kernel.org/stable/c/52fd9d80c0cea7bf09e7ee36cad316e5c39b7fe6"}, {"url": "https://git.kernel.org/stable/c/0e7f2cd72a4f9268ee09a13b13f3339e7cc71557"}, {"url": "https://git.kernel.org/stable/c/76e379754ba618989f6215be608d5c04774a611d"}], "title": "media: video-i2c: fix kthread error pointer left in kthread_vid_cap on failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/media/i2c/video-i2c.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "db0f4531aa55cfb0171684ebfffe3ff04b79d5a8", "status": "affected", "version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "versionType": "git"}, {"lessThan": "0fac63cac6689588da530764ccb6ba55ee8e4d8b", "status": "affected", "version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "versionType": "git"}, {"lessThan": "5c35d380bea60503c4fe0986fe1de6a3263282b3", "status": "affected", "version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "versionType": "git"}, {"lessThan": "3d1b10d81fe54852ed953f4129577b733bbd6907", "status": "affected", "version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "versionType": "git"}, {"lessThan": "968c5213e34c48d35febdfd09cf3dc58ad039140", "status": "affected", "version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "versionType": "git"}, {"lessThan": "52fd9d80c0cea7bf09e7ee36cad316e5c39b7fe6", "status": "affected", "version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "versionType": "git"}, {"lessThan": "0e7f2cd72a4f9268ee09a13b13f3339e7cc71557", "status": "affected", "version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "versionType": "git"}, {"lessThan": "76e379754ba618989f6215be608d5c04774a611d", "status": "affected", "version": "5cebaac609744414463d1ecc28fdecd26c1b9bc1", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/media/i2c/video-i2c.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.18"}, {"lessThan": "4.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.270", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.221", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.51", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: video-i2c: fix kthread error pointer left in kthread_vid_cap on failure\n\nkthread_run() returns an ERR_PTR on failure, not NULL.\nWhen start_streaming() fails, data->kthread_vid_cap is left holding\nthis error pointer instead of being cleared.\n\nThis causes two subsequent bugs:\n1. A future call to start_streaming() sees a non-NULL kthread_vid_cap\n and returns 0 (success) immediately, without actually starting the\n capture thread.\n2. A call to stop_streaming() checks 'kthread_vid_cap == NULL' which\n is false for an error pointer, and proceeds to call kthread_stop()\n on the error pointer, leading to a kernel crash.\n\nFix this by resetting kthread_vid_cap to NULL on failure before\njumping to the error path."}], "id": "CVE-2026-89871", "lastModified": "2026-10-19T09:18:31.820", "metrics": {}, "published": "2026-09-16T11:16:55.287", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0e7f2cd72a4f9268ee09a13b13f3339e7cc71557"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0fac63cac6689588da530764ccb6ba55ee8e4d8b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3d1b10d81fe54852ed953f4129577b733bbd6907"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/52fd9d80c0cea7bf09e7ee36cad316e5c39b7fe6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5c35d380bea60503c4fe0986fe1de6a3263282b3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/76e379754ba618989f6215be608d5c04774a611d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/968c5213e34c48d35febdfd09cf3dc58ad039140"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/db0f4531aa55cfb0171684ebfffe3ff04b79d5a8"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cebaac609744414463d1ecc28fdecd26c1b9bc1,db0f4531aa55cfb0171684ebfffe3ff04b79d5a8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cebaac609744414463d1ecc28fdecd26c1b9bc1,0fac63cac6689588da530764ccb6ba55ee8e4d8b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cebaac609744414463d1ecc28fdecd26c1b9bc1,5c35d380bea60503c4fe0986fe1de6a3263282b3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cebaac609744414463d1ecc28fdecd26c1b9bc1,3d1b10d81fe54852ed953f4129577b733bbd6907)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cebaac609744414463d1ecc28fdecd26c1b9bc1,968c5213e34c48d35febdfd09cf3dc58ad039140)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cebaac609744414463d1ecc28fdecd26c1b9bc1,52fd9d80c0cea7bf09e7ee36cad316e5c39b7fe6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cebaac609744414463d1ecc28fdecd26c1b9bc1,0e7f2cd72a4f9268ee09a13b13f3339e7cc71557)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cebaac609744414463d1ecc28fdecd26c1b9bc1,76e379754ba618989f6215be608d5c04774a611d)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.270,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.221,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.188,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.157,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.110,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.51,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.5,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-17T13:00:07.097623+00:00", "updated": "2026-09-18T08:30:06.690261+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-590", "CWE-676"]}