Commit 14d37a7f authored by John Johansen's avatar John Johansen
Browse files

apparmor: make sure the decompression ctx is promperly initialized 



The decompress ctx was not properly initialized when reading raw
profile data back to userspace.

Reported-by: default avatarkernel test robot <lkp@intel.com>
Fixes: 52ccc20c652b ("apparmor: use zstd compression for profile data")
Signed-off-by: default avatarJohn Johansen <john.johansen@canonical.com>
parent 73c7e91c

security/apparmor/apparmorfs.c

+5 −1
Original line number Diff line number Diff line
@@ -1327,7 +1327,11 @@ static int decompress_zstd(char *src, size_t slen, char *dst, size_t dlen) 
			ret = -ENOMEM;

			goto cleanup;

		}



		ctx = zstd_init_dctx(wksp, wksp_len);

		if (ctx == NULL) {

			ret = -ENOMEM;

			goto cleanup;

		}

		out_len = zstd_decompress_dctx(ctx, dst, dlen, src, slen);

		if (zstd_is_error(out_len)) {

			ret = -EINVAL;