{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23080","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.959Z","datePublished":"2026-02-04T16:08:04.982Z","dateUpdated":"2026-05-11T21:59:36.827Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:59:36.827Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: mcba_usb: mcba_usb_read_bulk_callback(): fix URB memory leak\n\nFix similar memory leak as in commit 7352e1d5932a (\"can: gs_usb:\ngs_usb_receive_bulk_callback(): fix URB memory leak\").\n\nIn mcba_usb_probe() -> mcba_usb_start(), the URBs for USB-in transfers are\nallocated, added to the priv->rx_submitted anchor and submitted. In the\ncomplete callback mcba_usb_read_bulk_callback(), the URBs are processed and\nresubmitted. In mcba_usb_close() -> mcba_urb_unlink() the URBs are freed by\ncalling usb_kill_anchored_urbs(&priv->rx_submitted).\n\nHowever, this does not take into account that the USB framework unanchors\nthe URB before the complete function is called. This means that once an\nin-URB has been completed, it is no longer anchored and is ultimately not\nreleased in usb_kill_anchored_urbs().\n\nFix the memory leak by anchoring the URB in the\nmcba_usb_read_bulk_callback()to the priv->rx_submitted anchor."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/can/usb/mcba_usb.c"],"versions":[{"version":"51f3baad7de943780ce0c17bd7975df567dd6e14","lessThan":"8b34c611a4feb81921bc4728c091e4e3ba0270c0","status":"affected","versionType":"git"},{"version":"51f3baad7de943780ce0c17bd7975df567dd6e14","lessThan":"b5a1ccdc63b71d93a69a6b72f7a3f3934293ea60","status":"affected","versionType":"git"},{"version":"51f3baad7de943780ce0c17bd7975df567dd6e14","lessThan":"59153b6388e05609144ad56a9b354e9100a91983","status":"affected","versionType":"git"},{"version":"51f3baad7de943780ce0c17bd7975df567dd6e14","lessThan":"179f6f0cf5ae489743273b7c1644324c0c477ea9","status":"affected","versionType":"git"},{"version":"51f3baad7de943780ce0c17bd7975df567dd6e14","lessThan":"94c9f6f7b953f6382fef4bdc48c046b861b8868f","status":"affected","versionType":"git"},{"version":"51f3baad7de943780ce0c17bd7975df567dd6e14","lessThan":"d374d715e338dfc3804aaa006fa6e470ffebb264","status":"affected","versionType":"git"},{"version":"51f3baad7de943780ce0c17bd7975df567dd6e14","lessThan":"710a7529fb13c5a470258ff5508ed3c498d54729","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/net/can/usb/mcba_usb.c"],"versions":[{"version":"4.12","status":"affected"},{"version":"0","lessThan":"4.12","status":"unaffected","versionType":"semver"},{"version":"5.10.249","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.199","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.162","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.122","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.68","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.8","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","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":"4.12","versionEndExcluding":"5.10.249"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"5.15.199"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.1.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.6.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.12.68"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/8b34c611a4feb81921bc4728c091e4e3ba0270c0"},{"url":"https://git.kernel.org/stable/c/b5a1ccdc63b71d93a69a6b72f7a3f3934293ea60"},{"url":"https://git.kernel.org/stable/c/59153b6388e05609144ad56a9b354e9100a91983"},{"url":"https://git.kernel.org/stable/c/179f6f0cf5ae489743273b7c1644324c0c477ea9"},{"url":"https://git.kernel.org/stable/c/94c9f6f7b953f6382fef4bdc48c046b861b8868f"},{"url":"https://git.kernel.org/stable/c/d374d715e338dfc3804aaa006fa6e470ffebb264"},{"url":"https://git.kernel.org/stable/c/710a7529fb13c5a470258ff5508ed3c498d54729"}],"title":"can: mcba_usb: mcba_usb_read_bulk_callback(): fix URB memory leak","x_generator":{"engine":"bippy-1.2.0"}}}}