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    Subject[PATCH 5.10 454/599] selinux: use correct type for context length
    Date
    From: Christian Göttsche <cgzones@googlemail.com>

    [ Upstream commit b97df7c098c531010e445da88d02b7bf7bf59ef6 ]

    security_sid_to_context() expects a pointer to an u32 as the address
    where to store the length of the computed context.

    Reported by sparse:

    security/selinux/xfrm.c:359:39: warning: incorrect type in arg 4
    (different signedness)
    security/selinux/xfrm.c:359:39: expected unsigned int
    [usertype] *scontext_len
    security/selinux/xfrm.c:359:39: got int *

    Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
    [PM: wrapped commit description]
    Signed-off-by: Paul Moore <paul@paul-moore.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    security/selinux/xfrm.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
    index 7314196185d1..00e95f8bd7c7 100644
    --- a/security/selinux/xfrm.c
    +++ b/security/selinux/xfrm.c
    @@ -346,7 +346,7 @@ int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x,
    int rc;
    struct xfrm_sec_ctx *ctx;
    char *ctx_str = NULL;
    - int str_len;
    + u32 str_len;

    if (!polsec)
    return 0;
    --
    2.34.1


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