CVE-2026-53195

Summary

In the Linux kernel, the following vulnerability has been resolved:

USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr()

build_i2c_fw_hdr() allocates a fixed-size buffer of (16*1024 - 512) + sizeof(struct ti_i2c_firmware_rec) bytes, then copies le16_to_cpu(img_header->Length) bytes into it without validating that Length fits within the available space after the firmware record header.

img_header->Length is a __le16 from the firmware file and can be up to 65535. check_fw_sanity() validates the total firmware size but not img_header->Length specifically.

Fix by rejecting images where img_header->Length exceeds the available destination space.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3e187152f44d76d7633a3855ffd0099e1588b82aaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b7faf660eefa2047ebc2959ff76da2b6eae2e9e3affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2fd64bf0ad66ab5de0c73524591d879427ba5abaaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4cb722747ed25971f35cc47ce5c0e79d7f717713affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 130d6567eb148040eed1b73e1414ad6c27d22bd5affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 294692d3296eee3391c348d7ea6401916d27806caffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5a79b634ee58786ca627268daefa7744f2af2e14affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0fd2b00b2d3d05e3eaa13342b3dfb0fa85c226aeaffected
LinuxLinux2.6.12affected
LinuxLinux0 < 2.6.12unaffected
LinuxLinux5.10.259 <= 5.10.*unaffected
LinuxLinux5.15.210 <= 5.15.*unaffected
LinuxLinux6.1.176 <= 6.1.*unaffected
LinuxLinux6.6.143 <= 6.6.*unaffected
LinuxLinux6.12.94 <= 6.12.*unaffected
LinuxLinux6.18.36 <= 6.18.*unaffected
LinuxLinux7.0.13 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References