{"id":"CVE-2026-23058","summary":"can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: ems_usb: ems_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 ems_usb_open(), the URBs for USB-in transfers are allocated, added to\nthe dev-\u003erx_submitted anchor and submitted. In the complete callback\nems_usb_read_bulk_callback(), the URBs are processed and resubmitted. In\nems_usb_close() the URBs are freed by calling\nusb_kill_anchored_urbs(&dev-\u003erx_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 ems_usb_close().\n\nFix the memory leak by anchoring the URB in the\nems_usb_read_bulk_callback() to the dev-\u003erx_submitted anchor.","modified":"2026-04-02T17:29:57.320814Z","published":"2026-02-04T16:07:41.337Z","related":["SUSE-SU-2026:0962-1","SUSE-SU-2026:1081-1","SUSE-SU-2026:20667-1","SUSE-SU-2026:20720-1","SUSE-SU-2026:20838-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1","SUSE-SU-2026:20931-1","openSUSE-SU-2026:20416-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23058.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0ce73a0eb5a27070957b67fd74059b6da89cc516"},{"type":"WEB","url":"https://git.kernel.org/stable/c/46a191ff7eeec33a2ccb2a1bfea34e18fbc5dc1a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/61e6d3674c3d1da1475dc207b3e75c55d678d18e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/68c62b3e53901846b5f68c5a8bade72a5d9c0b87"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e2c71030dc464d437110bcfb367c493fd402bddb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e9410fdd4d5f7eaa6526d8c80e83029d7c86a8e8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f48eabd15194b216030b32445f44230df95f5fe0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23058.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23058"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"702171adeed3607ee9603ec30ce081411e36ae42"},{"fixed":"e2c71030dc464d437110bcfb367c493fd402bddb"},{"fixed":"f48eabd15194b216030b32445f44230df95f5fe0"},{"fixed":"61e6d3674c3d1da1475dc207b3e75c55d678d18e"},{"fixed":"e9410fdd4d5f7eaa6526d8c80e83029d7c86a8e8"},{"fixed":"46a191ff7eeec33a2ccb2a1bfea34e18fbc5dc1a"},{"fixed":"68c62b3e53901846b5f68c5a8bade72a5d9c0b87"},{"fixed":"0ce73a0eb5a27070957b67fd74059b6da89cc516"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23058.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.32"},{"fixed":"5.10.249"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.199"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.162"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.122"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.68"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23058.json"}}],"schema_version":"1.7.5"}