{"id":"CVE-2026-43149","summary":"net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()\n\nThe priv-\u003erx_buffer and priv-\u003etx_buffer are alloc'd together as\ncontiguous buffers in uhdlc_init() but freed as two buffers in\nuhdlc_memclean().\n\nChange the cleanup to only call dma_free_coherent() once on the whole\nbuffer.","modified":"2026-06-18T03:55:13.448024967Z","published":"2026-05-06T11:27:31.708Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43149.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/011ae5dd84dc9f05eb9b8e1adff44252ac776e7b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/0f85a9655445e67bb0238cfc983d7c383b54938e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/36bd7d5deef936c4e1e3cd341598140e5c14c1d3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6496fb830cbb741d831225cc4e7e5601c6e42970"},{"type":"WEB","url":"https://git.kernel.org/stable/c/84b932bc9899d43e5829e6cf088b72d73a922b2b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d68994e37ac3b285692559776e0279a88a3b5f8d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d8a522085d09b30aba1016daf1dddac37c0f0285"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43149.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43149"},{"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":"c19b6d246a35627c3a69b2fa6bdece212b48214b"},{"fixed":"6496fb830cbb741d831225cc4e7e5601c6e42970"},{"fixed":"ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4"},{"fixed":"011ae5dd84dc9f05eb9b8e1adff44252ac776e7b"},{"fixed":"0f85a9655445e67bb0238cfc983d7c383b54938e"},{"fixed":"84b932bc9899d43e5829e6cf088b72d73a922b2b"},{"fixed":"d8a522085d09b30aba1016daf1dddac37c0f0285"},{"fixed":"d68994e37ac3b285692559776e0279a88a3b5f8d"},{"fixed":"36bd7d5deef936c4e1e3cd341598140e5c14c1d3"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43149.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.8.0"},{"fixed":"5.10.252"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.202"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.165"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.128"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43149.json"}}],"schema_version":"1.7.5"}