CVE-2026-23269
7.1 HIGHIn the Linux kernel, the following vulnerability has been resolved: apparmor: validate DFA start states are in bounds in unpack_pdb Sta...
Published: 2026-03-18 · Last updated: 2026-05-29
Severity and scoring
- CVSS
- 7.1 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- CWE
- CWE-125
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-23269
- [Patch]https://git.kernel.org/stable/c/07cf6320f40ea2ccfad63728cff34ecb309d03da
- [Patch]https://git.kernel.org/stable/c/0baadb0eece2c4d939db10d3c323b4652ac79a58
- [Patch]https://git.kernel.org/stable/c/15c3eb8916e7db01cb246d04a1fe6f0fdc065b0c
- [Patch]https://git.kernel.org/stable/c/3bb7db43e32190c973d4019037cedb7895920184
- [Patch]https://git.kernel.org/stable/c/5443c027ec16afa55b1b8a3e7a1ab2ea3c77767a
- [Patch]https://git.kernel.org/stable/c/5487871b2b56c19d26936ed6fdc62652b30941df
- [Patch]https://git.kernel.org/stable/c/9063d7e2615f4a7ab321de6b520e23d370e58816
- [Patch]https://git.kernel.org/stable/c/f43eea8ae0102ea198da211ef7f5ce83725ecf19
- [Other]https://www.qualys.com/2026/03/10/crack-armor.txt
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