CVE-2026-98208
Unknown
Description
In the Linux kernel, the following vulnerability has been resolved: mmc: sdio_uart: fix xmit_fifo leak when the port table is full sdio_uart_add_port() allocates the transmit fifo before claiming a slot in sdio_uart_table[]. When all UART_NR slots are taken, it returns -EBUSY with the fifo still allocated, but the probe error path only kfree()s the port, leaking the transmit fifo. Free the fifo in the failure path of sdio_uart_add_port() itself so the function retains nothing on error.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedOct 6, 2026
First seenOct 6, 2026
How to fix
Update
- Linux Linux9e992d59138fcfaa4bad7cc0750265b0a8bca100, b97b5b66c93cb4aaf6358727a73fff880a774dfd, 8a2c1bf209ba04cbd14153a771724bd5aa522fcd, 72f4c2b7a48423c708f2c348585419a1b71ab04c, fd8223c53ad9553b2a349d2a40e19bbc6e60fc48, ac866db277a4c73e84b4263773652e3aba326249, 5e142adbbdc54afbd01fad476c91cded41d22594, 53823e25793a97d07e6e98e0904bbf74cac8bc76 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 8b197a5ce7a7218bb9fc721647ba0d5734f27348 ≤ v < 9e992d59138fcfaa4bad7cc0750265b0a8bca100, 8b197a5ce7a7218bb9fc721647ba0d5734f27348 ≤ v < b97b5b66c93cb4aaf6358727a73fff880a774dfd, 8b197a5ce7a7218bb9fc721647ba0d5734f27348 ≤ v < 8a2c1bf209ba04cbd14153a771724bd5aa522fcd, 8b197a5ce7a7218bb9fc721647ba0d5734f27348 ≤ v < 72f4c2b7a48423c708f2c348585419a1b71ab04c, 8b197a5ce7a7218bb9fc721647ba0d5734f27348 ≤ v < fd8223c53ad9553b2a349d2a40e19bbc6e60fc48, 8b197a5ce7a7218bb9fc721647ba0d5734f27348 ≤ v < ac866db277a4c73e84b4263773652e3aba326249, 8b197a5ce7a7218bb9fc721647ba0d5734f27348 ≤ v < 5e142adbbdc54afbd01fad476c91cded41d22594, 8b197a5ce7a7218bb9fc721647ba0d5734f27348 ≤ v < 53823e25793a97d07e6e98e0904bbf74cac8bc76, 2.6.34 | 9e992d59138fcfaa4bad7cc0750265b0a8bca100, b97b5b66c93cb4aaf6358727a73fff880a774dfd, 8a2c1bf209ba04cbd14153a771724bd5aa522fcd, 72f4c2b7a48423c708f2c348585419a1b71ab04c, fd8223c53ad9553b2a349d2a40e19bbc6e60fc48, ac866db277a4c73e84b4263773652e3aba326249, 5e142adbbdc54afbd01fad476c91cded41d22594, 53823e25793a97d07e6e98e0904bbf74cac8bc76 |
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