PT-2026-52291 · Linux · Linux

Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-53195

NVD

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.

Related Identifiers

CVE-2026-53195

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-53195 · Security Note
• https://git.kernel.org/stable/c/3e187152f44d76d7633a3855ffd0099e1588b82a · Note
• https://git.kernel.org/stable/c/0fd2b00b2d3d05e3eaa13342b3dfb0fa85c226ae · Note
• https://git.kernel.org/stable/c/4cb722747ed25971f35cc47ce5c0e79d7f717713 · Note
• https://git.kernel.org/stable/c/b7faf660eefa2047ebc2959ff76da2b6eae2e9e3 · Note
• https://git.kernel.org/stable/c/130d6567eb148040eed1b73e1414ad6c27d22bd5 · Note
• https://git.kernel.org/stable/c/294692d3296eee3391c348d7ea6401916d27806c · Note
• https://git.kernel.org/stable/c/2fd64bf0ad66ab5de0c73524591d879427ba5aba · Note
• https://git.kernel.org/stable/c/5a79b634ee58786ca627268daefa7744f2af2e14 · Note