{"id":"CVE-2026-23108","revision":null,"records":[{"revision":"bf7d80c937c44da384b4339c834c8f03","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23108","aliases":[],"title":"can: usb_8dev: usb_8dev_read_bulk_callback(): fix URB memory leak","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: usb_8dev: usb_8dev_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 usb_8dev_open() -> usb_8dev_start(), the URBs for USB-in transfers are\nallocated, added to the priv->rx_submitted anchor and submitted. In the\ncomplete callback usb_8dev_read_bulk_callback(), the URBs are processed and\nresubmitted. In usb_8dev_close() -> unlink_all_urbs() 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\nusb_8dev_read_bulk_callback() to the priv->rx_submitted anchor.","state":0,"publishedAt":"2026-02-04T16:08:28.65+00:00","modifiedAt":"2026-10-19T18:25:31.374+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/net/can/usb/usb_8dev.c\"\n ],\n \"versions\": [\n {\n \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\",\n \"lessThan\": \"feb8243eaea7efd5279b19667d7189fd8654c87a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\",\n \"lessThan\": \"ef6e608e5ee71eca0cd3475c737e684cef24f240\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\",\n \"lessThan\": \"60719661b4cbd7ffbed1a0e0fa3bbc82d8bd2be9\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\",\n \"lessThan\": \"59ff56992bba28051ad67cd8cc7b0edfe7280796\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\",\n \"lessThan\": \"ea4a98e924164586066b39f29bfcc7cc9da108cd\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\",\n \"lessThan\": \"07e9373739c6388af9d99797cdb2e79dbbcbe92b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"0024d8ad1639e32d717445c69ca813fd19c2a91c\",\n \"lessThan\": \"f7a980b3b8f80fe367f679da376cf76e800f9480\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/net/can/usb/usb_8dev.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3.9\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"3.9\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.249\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.199\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.162\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.122\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.68\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.8\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.19\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/feb8243eaea7efd5279b19667d7189fd8654c87a","https://git.kernel.org/stable/c/ef6e608e5ee71eca0cd3475c737e684cef24f240","https://git.kernel.org/stable/c/60719661b4cbd7ffbed1a0e0fa3bbc82d8bd2be9","https://git.kernel.org/stable/c/59ff56992bba28051ad67cd8cc7b0edfe7280796","https://git.kernel.org/stable/c/ea4a98e924164586066b39f29bfcc7cc9da108cd","https://git.kernel.org/stable/c/07e9373739c6388af9d99797cdb2e79dbbcbe92b","https://git.kernel.org/stable/c/f7a980b3b8f80fe367f679da376cf76e800f9480"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23108","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23108","identifiers":["CVE-2026-23108"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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