7.1

CVE-2026-23269

Medienbericht

apparmor: validate DFA start states are in bounds in unpack_pdb

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.4 < 5.10.253
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.203
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.169
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.130
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.77
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.18
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.8
Linux ≫ Linux Kernel Version7.0 Updaterc1
Linux ≫ Linux Kernel Version7.0 Updaterc2
Linux ≫ Linux Kernel Version7.0 Updaterc3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.13% 0.03
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

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VulnDex Intel
Media Report
06.04.2026 16:29
https://git.kernel.org/stable/c/15c3eb8916e7db01cb246d04a1fe6f0fdc065b0c
Patch
https://git.kernel.org/stable/c/0baadb0eece2c4d939db10d3c323b4652ac79a58
Patch
https://git.kernel.org/stable/c/3bb7db43e32190c973d4019037cedb7895920184
Patch
https://git.kernel.org/stable/c/9063d7e2615f4a7ab321de6b520e23d370e58816
Patch
https://www.qualys.com/2026/03/10/crack-armor.txt
Third Party Advisory
https://git.kernel.org/stable/c/07cf6320f40ea2ccfad63728cff34ecb309d03da
Patch
https://git.kernel.org/stable/c/5443c027ec16afa55b1b8a3e7a1ab2ea3c77767a
Patch
https://git.kernel.org/stable/c/5487871b2b56c19d26936ed6fdc62652b30941df
Patch
https://git.kernel.org/stable/c/f43eea8ae0102ea198da211ef7f5ce83725ecf19
Patch