CVE-2026-31405 - media: dvb-net: fix OOB access in ULE extension header tables

CVE-2026-31405 - media: dvb-net: fix OOB access in ULE extension header tables

https://cvefeed.io/rssfeed/latest.atom / Mon, 04/06/2026 - 12:10
CVE ID :CVE-2026-31405
Published : April 6, 2026, 8:16 a.m. | 51 minutes ago
Description :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.
Severity: 0.0 | NA
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