{"id":"CVE-2026-53195","title":"USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr()\n\nbuild_i2c_fw_hdr() allocates a fixed-size buffer of\n(16*1024 - 512) + sizeof(struct ti_i2c_firmware_rec) by…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3e187152f44d76d7633a3855ffd0099e1588b82a","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b7faf660eefa2047ebc2959ff76da2b6eae2e9e3","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2fd64bf0ad66ab5de0c73524591d879427ba5aba","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4cb722747ed25971f35cc47ce5c0e79d7f717713","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 130d6567eb148040eed1b73e1414ad6c27d22bd5","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 294692d3296eee3391c348d7ea6401916d27806c","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5a79b634ee58786ca627268daefa7744f2af2e14","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0fd2b00b2d3d05e3eaa13342b3dfb0fa85c226ae","Linux 2.6.12"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:22:00.520145Z"},"published":"2026-06-25","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:24:06.702Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53195","references":[{"url":"https://git.kernel.org/stable/c/3e187152f44d76d7633a3855ffd0099e1588b82a"},{"url":"https://git.kernel.org/stable/c/b7faf660eefa2047ebc2959ff76da2b6eae2e9e3"},{"url":"https://git.kernel.org/stable/c/2fd64bf0ad66ab5de0c73524591d879427ba5aba"},{"url":"https://git.kernel.org/stable/c/4cb722747ed25971f35cc47ce5c0e79d7f717713"},{"url":"https://git.kernel.org/stable/c/130d6567eb148040eed1b73e1414ad6c27d22bd5"},{"url":"https://git.kernel.org/stable/c/294692d3296eee3391c348d7ea6401916d27806c"},{"url":"https://git.kernel.org/stable/c/5a79b634ee58786ca627268daefa7744f2af2e14"},{"url":"https://git.kernel.org/stable/c/0fd2b00b2d3d05e3eaa13342b3dfb0fa85c226ae"}],"tags":["cve.org"],"epss":0.00143,"epssPercentile":0.03604,"ingestedAt":"2026-11-06T16:57:43.271Z","slug":"CVE-2026-53195","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr()\n\nbuild_i2c_fw_hdr() allocates a fixed-size buffer of\n(16*1024 - 512) + sizeof(struct ti_i2c_firmware_rec) bytes, then\ncopies le16_to_cpu(img_header->Length) bytes into it without\nvalidating that Length fits within the available space after the\nfirmware record header.\n\nimg_header->Length is a __le16 from the firmware file and can be\nup to 65535. check_fw_sanity() validates the total firmware size\nbut not img_header->Length specifically.\n\nFix by rejecting images where img_header->Length exceeds the\navailable destination space.\n\n## Affected\n\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3e187152f44d76d7633a3855ffd0099e1588b82a`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b7faf660eefa2047ebc2959ff76da2b6eae2e9e3`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2fd64bf0ad66ab5de0c73524591d879427ba5aba`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4cb722747ed25971f35cc47ce5c0e79d7f717713`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 130d6567eb148040eed1b73e1414ad6c27d22bd5`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 294692d3296eee3391c348d7ea6401916d27806c`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5a79b634ee58786ca627268daefa7744f2af2e14`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0fd2b00b2d3d05e3eaa13342b3dfb0fa85c226ae`\n- `Linux 2.6.12`\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":[]}