CVE-2026-53195
Description
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.
How to fix
- linux linux_kernel5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13 or later
- git.kernel.org/stable/c/0fd2b00b2d3d05e3eaa13342b3dfb0fa85c226ae
- git.kernel.org/stable/c/130d6567eb148040eed1b73e1414ad6c27d22bd5
- git.kernel.org/stable/c/294692d3296eee3391c348d7ea6401916d27806c
- git.kernel.org/stable/c/2fd64bf0ad66ab5de0c73524591d879427ba5aba
- git.kernel.org/stable/c/3e187152f44d76d7633a3855ffd0099e1588b82a
- git.kernel.org/stable/c/4cb722747ed25971f35cc47ce5c0e79d7f717713
- git.kernel.org/stable/c/5a79b634ee58786ca627268daefa7744f2af2e14
- git.kernel.org/stable/c/b7faf660eefa2047ebc2959ff76da2b6eae2e9e3
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.12.1 ≤ v < 5.10.259, 5.11 ≤ v < 5.15.210, 5.16 ≤ v < 6.1.176, 6.2 ≤ v < 6.6.143, 6.7 ≤ v < 6.12.94, 6.13 ≤ v < 6.18.36, 6.19 ≤ v < 7.0.13, 2.6.12, 7.1 | 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13 |
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