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linux/security/apparmor/lsm.c
GONG Ruiqi 11b7df0952 apparmor/lsm: Fix aa_dfa_unpack's error handling in aa_setup_dfa_engine 
aa_dfa_unpack returns ERR_PTR not NULL when it fails, but aa_put_dfa
only checks NULL for its input, which would cause invalid memory access
in aa_put_dfa. Set nulldfa to NULL explicitly to fix that.

Fixes: 98b824ff89 ("apparmor: refcount the pdb")
Signed-off-by: GONG Ruiqi <gongruiqi1@huawei.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-04-22 20:11:08 -07:00

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