{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"860887d22890417d43ef8298f0cc4865e29b54de","status":"affected","version":"9982464379e81ece51ced03ebecbbcd34ea367a6","versionType":"git"},{"lessThan":"9a4be91e5bb032b34cb3c962f6d4f82e7ef09364","status":"affected","version":"9982464379e81ece51ced03ebecbbcd34ea367a6","versionType":"git"},{"lessThan":"fb12c87ae855346321af72e57a93c146205f1090","status":"affected","version":"9982464379e81ece51ced03ebecbbcd34ea367a6","versionType":"git"},{"lessThan":"f50a2b9e57a751e70ae9a272875d80d39eaccd6a","status":"affected","version":"9982464379e81ece51ced03ebecbbcd34ea367a6","versionType":"git"},{"lessThan":"6bd21ec8549a5854dd64204a66289952917a924c","status":"affected","version":"9982464379e81ece51ced03ebecbbcd34ea367a6","versionType":"git"},{"lessThan":"5c342437ea44bb829680ca9e4f683dd5b325b219","status":"affected","version":"9982464379e81ece51ced03ebecbbcd34ea367a6","versionType":"git"},{"lessThan":"c73c3fc1c7ca5a927639f0884624cb244ba791e4","status":"affected","version":"9982464379e81ece51ced03ebecbbcd34ea367a6","versionType":"git"},{"lessThan":"2a665946e0407a05a3f81bd56a08553c446498e0","status":"affected","version":"9982464379e81ece51ced03ebecbbcd34ea367a6","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"4.1"},{"lessThan":"4.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.265","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.216","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.42","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cveId":"CVE-2026-68403","cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: initialize SDIO data work before cleanup\n\nbrcmf_sdio_probe() stores the newly allocated bus in sdiodev->bus before\nallocating the ordered workqueue. If that allocation fails, the function\njumps to fail and calls brcmf_sdio_remove().\n\nbrcmf_sdio_remove() unconditionally cancels bus->datawork. Initialize the\nwork item before the first failure path that can reach brcmf_sdio_remove(),\nso the cleanup path always observes a valid work object.\n\nThis issue was found by our static analysis tool and then confirmed by\nmanual review of the probe error path and the remove-time work drain. The\nproblem pattern is an early setup failure that reaches a cleanup helper\nwhich cancels an embedded work item before its initializer has run.\n\nA QEMU PoC forced alloc_ordered_workqueue() to fail at the same point in\nbrcmf_sdio_probe(), before INIT_WORK(&bus->datawork) is reached. The\nresulting fail path calls brcmf_sdio_remove(), and DEBUG_OBJECTS reports\nthe invalid work drain with brcmf_sdio_probe() and brcmf_sdio_remove() in\nthe stack.","epss":{"date":"2026-11-06","percentile":0.0725,"score":0.00177},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793985571577,"publishedAt":1786363463150,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/860887d22890417d43ef8298f0cc4865e29b54de"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/9a4be91e5bb032b34cb3c962f6d4f82e7ef09364"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/fb12c87ae855346321af72e57a93c146205f1090"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/f50a2b9e57a751e70ae9a272875d80d39eaccd6a"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/6bd21ec8549a5854dd64204a66289952917a924c"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/5c342437ea44bb829680ca9e4f683dd5b325b219"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/c73c3fc1c7ca5a927639f0884624cb244ba791e4"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/2a665946e0407a05a3f81bd56a08553c446498e0"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/2a665946e0407a05a3f81bd56a08553c446498e0"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/5c342437ea44bb829680ca9e4f683dd5b325b219"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/6bd21ec8549a5854dd64204a66289952917a924c"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/860887d22890417d43ef8298f0cc4865e29b54de"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/9a4be91e5bb032b34cb3c962f6d4f82e7ef09364"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/c73c3fc1c7ca5a927639f0884624cb244ba791e4"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/f50a2b9e57a751e70ae9a272875d80d39eaccd6a"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/fb12c87ae855346321af72e57a93c146205f1090"}],"remediation":[],"revision":"ab91072c995f0bbec2e6ebfa281c6a75a084a19427b3988b2ae58503e87a968d","sources":[{"modifiedAt":1793984115413,"name":"CNA: Linux","retrievedAt":1793985989501,"url":"https://www.cve.org/CVERecord?id=CVE-2026-68403"},{"modifiedAt":1793985571577,"name":"NVD","retrievedAt":1793989640827,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68403"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793985992267,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-68403"}],"ssvc":{"assessedAt":1793983719275,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"wifi: brcmfmac: initialize SDIO data work before cleanup","updatedAt":1793989640827}