CVE-2026-23269
Published: Mar 18, 2026
Modified: May 11, 2026
CVSS v3.1
7.1
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected ad5ff3db53c68c2f12936bc74ea5dfe0af943592 - < f43eea8ae0102ea198da211ef7f5ce83725ecf19affected ad5ff3db53c68c2f12936bc74ea5dfe0af943592 - < 5487871b2b56c19d26936ed6fdc62652b30941dfaffected ad5ff3db53c68c2f12936bc74ea5dfe0af943592 - < 5443c027ec16afa55b1b8a3e7a1ab2ea3c77767aaffected ad5ff3db53c68c2f12936bc74ea5dfe0af943592 - < 07cf6320f40ea2ccfad63728cff34ecb309d03daaffected ad5ff3db53c68c2f12936bc74ea5dfe0af943592 - < 15c3eb8916e7db01cb246d04a1fe6f0fdc065b0c+3 more versions |
Linux | Linux | affected 3.4unaffected 0 - < 3.4unaffected 5.10.253 - <= 5.10.*unaffected 5.15.203 - <= 5.15.*unaffected 6.1.169 - <= 6.1.*+5 more versions |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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