Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: validate DFA start states are in bounds in unpack_pdb Start states are read from untrusted data and used as indexes into the DFA state tables. The aa_dfa_next() function call in unpack_pdb() will access dfa->tables[YYTD_ID_BASE][start], and if the start state exceeds the number of states in the DFA, this results in an out-of-bound read. ================================================================== BUG: KASAN: slab-out-of-bounds in aa_dfa_next+0x2a1/0x360 Read of size 4 at addr ffff88811956fb90 by task su/1097 ... Reject policies with out-of-bounds start states during unpacking to prevent the issue.

INFO

Published Date :

2026-03-18T17:54:42.988Z

Last Modified :

2026-04-18T08:57:29.535Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2026-23269 vulnerability.

Vendors Products
Linux
  • Linux Kernel

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