{"id":"CVE-2024-41088","summary":"can: mcp251xfd: fix infinite loop when xmit fails","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: mcp251xfd: fix infinite loop when xmit fails\n\nWhen the mcp251xfd_start_xmit() function fails, the driver stops\nprocessing messages, and the interrupt routine does not return,\nrunning indefinitely even after killing the running application.\n\nError messages:\n[  441.298819] mcp251xfd spi2.0 can0: ERROR in mcp251xfd_start_xmit: -16\n[  441.306498] mcp251xfd spi2.0 can0: Transmit Event FIFO buffer not empty. (seq=0x000017c7, tef_tail=0x000017cf, tef_head=0x000017d0, tx_head=0x000017d3).\n... and repeat forever.\n\nThe issue can be triggered when multiple devices share the same SPI\ninterface. And there is concurrent access to the bus.\n\nThe problem occurs because tx_ring-\u003ehead increments even if\nmcp251xfd_start_xmit() fails. Consequently, the driver skips one TX\npackage while still expecting a response in\nmcp251xfd_handle_tefif_one().\n\nResolve the issue by starting a workqueue to write the tx obj\nsynchronously if err = -EBUSY. In case of another error, decrement\ntx_ring-\u003ehead, remove skb from the echo stack, and drop the message.\n\n[mkl: use more imperative wording in patch description]","modified":"2026-03-20T12:36:38.708939Z","published":"2024-07-29T15:48:04.035Z","related":["SUSE-SU-2024:3190-1","SUSE-SU-2024:3194-1","SUSE-SU-2024:3195-1","SUSE-SU-2024:3209-1","SUSE-SU-2024:3383-1","SUSE-SU-2024:3483-1","SUSE-SU-2025:20044-1","SUSE-SU-2025:20047-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/41xxx/CVE-2024-41088.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3e72558c1711d524e3150103739ddd06650e291b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6c6b4afa59c2fb4d1759235f866d8caed2aa4729"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d8fb63e46c884c898a38f061c2330f7729e75510"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f926c022ebaabf7963bebf89a97201d66978a025"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/41xxx/CVE-2024-41088.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-41088"},{"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":"55e5b97f003e85e66babb55f357627d52081a264"},{"fixed":"f926c022ebaabf7963bebf89a97201d66978a025"},{"fixed":"3e72558c1711d524e3150103739ddd06650e291b"},{"fixed":"6c6b4afa59c2fb4d1759235f866d8caed2aa4729"},{"fixed":"d8fb63e46c884c898a38f061c2330f7729e75510"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-41088.json"}}],"schema_version":"1.7.5"}