wifi: iwlwifi: read txq->read_ptr under lock

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/intel/iwlwifi/queue/tx.c"
                    ],
                    "versions": [
                        {
                            "version": "7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6",
                            "lessThan": "f30e8af109818c9db08cbcc46eb9713fe4b530ba",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6",
                            "lessThan": "aab7b39fcac5f6165f6434bcbb56bb7865d4ad2b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6",
                            "lessThan": "b83db8e756dec68a950ed2f056248b1704b3deaa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6",
                            "lessThan": "43d07103df670484cdd26f9588eabef80f69db89",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6",
                            "lessThan": "c2ace6300600c634553657785dfe5ea0ed688ac2",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/intel/iwlwifi/queue/tx.c"
                    ],
                    "versions": [
                        {
                            "version": "4.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.209",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.31",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.8.10",
                            "lessThanOrEqual": "6.8.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.9",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }