{"id":"CVE-2026-98208","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sdio_uart: fix xmit_fifo leak when the port table is full\n\nsdio_uart_add_port() allocates the transmit fifo before claiming a\nslot in sdio_uart_table[]","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sdio_uart: fix xmit_fifo leak when the port table is full\n\nsdio_uart_add_port() allocates the transmit fifo before claiming a\nslot in sdio_uart_table[].  When all …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 8b197a5ce7a7218bb9fc721647ba0d5734f27348 < 9e992d59138fcfaa4bad7cc0750265b0a8bca100","Linux >= 8b197a5ce7a7218bb9fc721647ba0d5734f27348 < b97b5b66c93cb4aaf6358727a73fff880a774dfd","Linux >= 8b197a5ce7a7218bb9fc721647ba0d5734f27348 < 8a2c1bf209ba04cbd14153a771724bd5aa522fcd","Linux >= 8b197a5ce7a7218bb9fc721647ba0d5734f27348 < 72f4c2b7a48423c708f2c348585419a1b71ab04c","Linux >= 8b197a5ce7a7218bb9fc721647ba0d5734f27348 < fd8223c53ad9553b2a349d2a40e19bbc6e60fc48","Linux >= 8b197a5ce7a7218bb9fc721647ba0d5734f27348 < ac866db277a4c73e84b4263773652e3aba326249","Linux >= 8b197a5ce7a7218bb9fc721647ba0d5734f27348 < 5e142adbbdc54afbd01fad476c91cded41d22594","Linux >= 8b197a5ce7a7218bb9fc721647ba0d5734f27348 < 53823e25793a97d07e6e98e0904bbf74cac8bc76","Linux 2.6.34"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T09:18:07.017","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98208","references":[{"url":"https://git.kernel.org/stable/c/53823e25793a97d07e6e98e0904bbf74cac8bc76","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5e142adbbdc54afbd01fad476c91cded41d22594","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/72f4c2b7a48423c708f2c348585419a1b71ab04c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8a2c1bf209ba04cbd14153a771724bd5aa522fcd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9e992d59138fcfaa4bad7cc0750265b0a8bca100","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ac866db277a4c73e84b4263773652e3aba326249","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b97b5b66c93cb4aaf6358727a73fff880a774dfd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fd8223c53ad9553b2a349d2a40e19bbc6e60fc48","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-06T08:50:17.444Z","slug":"CVE-2026-98208","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sdio_uart: fix xmit_fifo leak when the port table is full\n\nsdio_uart_add_port() allocates the transmit fifo before claiming a\nslot in sdio_uart_table[].  When all UART_NR slots are taken, it\nreturns -EBUSY with the fifo still allocated, but the probe error\npath only kfree()s the port, leaking the transmit fifo.\n\nFree the fifo in the failure path of sdio_uart_add_port() itself so\nthe function retains nothing on error.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}