CVE-2026-31405

In the Linux kernel, the following vulnerability has been resolved: media: dvb-net: fix OOB access in ULE extension header tables The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables in handle_one_ule_extension() are declared with 255 elements (valid indices 0-254), but the index htype is derived from network-controlled data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When htype equals 255, an out-of-bounds read occurs on the function pointer table, and the OOB value may be called as a function pointer. Add a bounds check on htype against the array size before either table is accessed. Out-of-range values now cause the SNDU to be discarded.

The following products are affected by CVE-2026-31405 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-31405.

URL	Resource
https://git.kernel.org/stable/c/145e50c2c700fa52b840df7bab206043997dd18e
https://git.kernel.org/stable/c/1a6da3dbb9985d00743073a1cc1f96e59f5abc30
https://git.kernel.org/stable/c/24d87712727a5017ad142d63940589a36cd25647
https://git.kernel.org/stable/c/29ef43ceb121d67b87f4cbb08439e4e9e732eff8
https://git.kernel.org/stable/c/8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe
https://git.kernel.org/stable/c/b2bd2ee73b697c177157bba534e1b1064c2e66a0
https://git.kernel.org/stable/c/e51238718217c4abdb3ccc3b0c0cde265c7ec629
https://git.kernel.org/stable/c/f2b65dcb78c8990e4c68a906627433be1fe38a92
https://lore.kernel.org/linux-cve-announce/2026040603-CVE-2026-31405-8cfb@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2026-31405
https://www.cve.org/CVERecord?id=CVE-2026-31405