{"id":"CVE-2026-23302","state":"PUBLISHED","title":"net: annotate data-races around sk->sk_{data_ready,write_space}","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: annotate data-races around sk->sk_{data_ready,write_space}\n\nskmsg (and probably other layers) are changing these pointers\nwhile other cpus might read them concurrently.\n\nAdd corresponding READ_ONCE()/WRITE_ONCE() annotations\nfor UDP, TCP and AF_UNIX.","publishedAt":"2026-03-25T10:26:57.470Z","updatedAt":"2026-10-15T01:13:51.391Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"279f2b67d1c44ee139bd3fdb221850daa9358449","versionType":"git"},{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"7ad01905831c815520f1b0486336a03bb7420465","versionType":"git"},{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"c494448bb522bbbb63096540eb2319101a0480ab","versionType":"git"},{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"f17c1c4acbe2bd702abce73a847a04a196fab2c5","versionType":"git"},{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"27fccdbcbbfc4651b6f66756e6fa3f52e051ec23","versionType":"git"},{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"2ef2b20cf4e04ac8a6ba68493f8780776ff84300","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/skmsg.c","net/ipv4/tcp.c","net/ipv4/tcp_bpf.c","net/ipv4/tcp_input.c","net/ipv4/tcp_minisocks.c","net/ipv4/udp.c","net/ipv4/udp_bpf.c","net/unix/af_unix.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.20","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.20","versionType":"semver"},{"version":"6.1.177","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.136","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.82","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.17","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.7","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/skmsg.c","net/ipv4/tcp.c","net/ipv4/tcp_bpf.c","net/ipv4/tcp_input.c","net/ipv4/tcp_minisocks.c","net/ipv4/udp.c","net/ipv4/udp_bpf.c","net/unix/af_unix.c"]}],"references":["https://git.kernel.org/stable/c/279f2b67d1c44ee139bd3fdb221850daa9358449","https://git.kernel.org/stable/c/7ad01905831c815520f1b0486336a03bb7420465","https://git.kernel.org/stable/c/c494448bb522bbbb63096540eb2319101a0480ab","https://git.kernel.org/stable/c/f17c1c4acbe2bd702abce73a847a04a196fab2c5","https://git.kernel.org/stable/c/27fccdbcbbfc4651b6f66756e6fa3f52e051ec23","https://git.kernel.org/stable/c/2ef2b20cf4e04ac8a6ba68493f8780776ff84300","https://cert-portal.siemens.com/productcert/html/ssa-784472.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23302.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23302","state":"PUBLISHED","datePublished":"2026-03-25T10:26:57.470Z","dateUpdated":"2026-10-15T01:13:51.391Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.993Z"},"containers":{"cna":{"title":"net: annotate data-races around sk->sk_{data_ready,write_space}","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: annotate data-races around sk->sk_{data_ready,write_space}\n\nskmsg (and probably other layers) are changing these pointers\nwhile other cpus might read them concurrently.\n\nAdd corresponding READ_ONCE()/WRITE_ONCE() annotations\nfor UDP, TCP and AF_UNIX."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"279f2b67d1c44ee139bd3fdb221850daa9358449","versionType":"git"},{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"7ad01905831c815520f1b0486336a03bb7420465","versionType":"git"},{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"c494448bb522bbbb63096540eb2319101a0480ab","versionType":"git"},{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"f17c1c4acbe2bd702abce73a847a04a196fab2c5","versionType":"git"},{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"27fccdbcbbfc4651b6f66756e6fa3f52e051ec23","versionType":"git"},{"version":"604326b41a6fb9b4a78b6179335decee0365cd8c","status":"affected","lessThan":"2ef2b20cf4e04ac8a6ba68493f8780776ff84300","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/skmsg.c","net/ipv4/tcp.c","net/ipv4/tcp_bpf.c","net/ipv4/tcp_input.c","net/ipv4/tcp_minisocks.c","net/ipv4/udp.c","net/ipv4/udp_bpf.c","net/unix/af_unix.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.20","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.20","versionType":"semver"},{"version":"6.1.177","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.136","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.82","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.17","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.7","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/skmsg.c","net/ipv4/tcp.c","net/ipv4/tcp_bpf.c","net/ipv4/tcp_input.c","net/ipv4/tcp_minisocks.c","net/ipv4/udp.c","net/ipv4/udp_bpf.c","net/unix/af_unix.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/279f2b67d1c44ee139bd3fdb221850daa9358449"},{"url":"https://git.kernel.org/stable/c/7ad01905831c815520f1b0486336a03bb7420465"},{"url":"https://git.kernel.org/stable/c/c494448bb522bbbb63096540eb2319101a0480ab"},{"url":"https://git.kernel.org/stable/c/f17c1c4acbe2bd702abce73a847a04a196fab2c5"},{"url":"https://git.kernel.org/stable/c/27fccdbcbbfc4651b6f66756e6fa3f52e051ec23"},{"url":"https://git.kernel.org/stable/c/2ef2b20cf4e04ac8a6ba68493f8780776ff84300"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-07-04T11:50:29.536Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.1.177"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.6.136"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.12.82"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.18.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.19.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"affected":[{"vendor":"Siemens","product":"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"*","versionType":"custom"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-784472.html"}],"providerMetadata":{"shortName":"siemens-SADP","orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","dateUpdated":"2026-10-15T01:13:51.391Z"},"x_adpType":"supplier"}]}}}