{"id":"CVE-2026-98967","state":"PUBLISHED","title":"cxgb4/ch_ktls: disable softirqs around tid_list erases","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncxgb4/ch_ktls: disable softirqs around tid_list erases\n\nchcr_ktls_cpl_act_open_rpl() inserts into tid_list from the receive path\nusing xa_insert_bh().  The array is shared by the adapter's connections\nand initialized with XA_FLAGS_LOCK_BH.  However, chcr_ktls_dev_del() and\nthe chcr_ktls_dev_add() error path use xa_erase(), which takes the XArray\nlock without disabling softirqs.\n\nWhen cleanup runs with softirqs enabled, a receive softirq for another\nconnection on the same CPU can interrupt the erase and spin on the lock\nheld by the interrupted task.  Use xa_erase_bh() at both sites to match\nthe insertion path.","publishedAt":"2026-10-23T12:19:37.625Z","updatedAt":"2026-10-30T12:40:33.620Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b96adbf6601d76ee0bdd9bfa5bcdd0cdd5333d78","status":"affected","lessThan":"2c49ea1dd16d6dc0dd895e6aec57c9a448191cfe","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"bafe51bb145e6ae549ae79dcbc35648292625934","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"0c5063a898813a420e6bad93debd134ef8b3bfd1","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"8739f06e3f82cd715f7dd10ab24029ed881efc90","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"bcf97573d44e277b1744d7f1226f665aa0ccc599","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"7110c7f70c59eb7924e79853bcc00e2a026662e6","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"bea736a2b8c6da5b1078badf1206541b5404250f","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"4c9dc0faca98084922caeb689579d338cf3e1c29","versionType":"git"},{"version":"70c4ead897211b184f36cbeda213f2a3e8153218","status":"affected","versionType":"git"},{"version":"5.10.42","status":"affected","lessThan":"5.10.273","versionType":"semver"},{"version":"5.12.9","status":"affected","lessThan":"5.13","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c"]}],"references":["https://git.kernel.org/stable/c/2c49ea1dd16d6dc0dd895e6aec57c9a448191cfe","https://git.kernel.org/stable/c/bafe51bb145e6ae549ae79dcbc35648292625934","https://git.kernel.org/stable/c/0c5063a898813a420e6bad93debd134ef8b3bfd1","https://git.kernel.org/stable/c/8739f06e3f82cd715f7dd10ab24029ed881efc90","https://git.kernel.org/stable/c/bcf97573d44e277b1744d7f1226f665aa0ccc599","https://git.kernel.org/stable/c/7110c7f70c59eb7924e79853bcc00e2a026662e6","https://git.kernel.org/stable/c/bea736a2b8c6da5b1078badf1206541b5404250f","https://git.kernel.org/stable/c/4c9dc0faca98084922caeb689579d338cf3e1c29"],"weaknesses":[],"ingestedAt":"2026-10-30T13:00:06.648Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98967.json","commit":"cb14bf1b43b0c9f05f7f40eae2246263fd430780","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98967","state":"PUBLISHED","datePublished":"2026-10-23T12:19:37.625Z","dateUpdated":"2026-10-30T12:40:33.620Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.383Z"},"containers":{"cna":{"title":"cxgb4/ch_ktls: disable softirqs around tid_list erases","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncxgb4/ch_ktls: disable softirqs around tid_list erases\n\nchcr_ktls_cpl_act_open_rpl() inserts into tid_list from the receive path\nusing xa_insert_bh().  The array is shared by the adapter's connections\nand initialized with XA_FLAGS_LOCK_BH.  However, chcr_ktls_dev_del() and\nthe chcr_ktls_dev_add() error path use xa_erase(), which takes the XArray\nlock without disabling softirqs.\n\nWhen cleanup runs with softirqs enabled, a receive softirq for another\nconnection on the same CPU can interrupt the erase and spin on the lock\nheld by the interrupted task.  Use xa_erase_bh() at both sites to match\nthe insertion path."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b96adbf6601d76ee0bdd9bfa5bcdd0cdd5333d78","status":"affected","lessThan":"2c49ea1dd16d6dc0dd895e6aec57c9a448191cfe","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"bafe51bb145e6ae549ae79dcbc35648292625934","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"0c5063a898813a420e6bad93debd134ef8b3bfd1","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"8739f06e3f82cd715f7dd10ab24029ed881efc90","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"bcf97573d44e277b1744d7f1226f665aa0ccc599","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"7110c7f70c59eb7924e79853bcc00e2a026662e6","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"bea736a2b8c6da5b1078badf1206541b5404250f","versionType":"git"},{"version":"65e302a9bd57b62872040d57eea1201562a7cbb2","status":"affected","lessThan":"4c9dc0faca98084922caeb689579d338cf3e1c29","versionType":"git"},{"version":"70c4ead897211b184f36cbeda213f2a3e8153218","status":"affected","versionType":"git"},{"version":"5.10.42","status":"affected","lessThan":"5.10.273","versionType":"semver"},{"version":"5.12.9","status":"affected","lessThan":"5.13","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/2c49ea1dd16d6dc0dd895e6aec57c9a448191cfe"},{"url":"https://git.kernel.org/stable/c/bafe51bb145e6ae549ae79dcbc35648292625934"},{"url":"https://git.kernel.org/stable/c/0c5063a898813a420e6bad93debd134ef8b3bfd1"},{"url":"https://git.kernel.org/stable/c/8739f06e3f82cd715f7dd10ab24029ed881efc90"},{"url":"https://git.kernel.org/stable/c/bcf97573d44e277b1744d7f1226f665aa0ccc599"},{"url":"https://git.kernel.org/stable/c/7110c7f70c59eb7924e79853bcc00e2a026662e6"},{"url":"https://git.kernel.org/stable/c/bea736a2b8c6da5b1078badf1206541b5404250f"},{"url":"https://git.kernel.org/stable/c/4c9dc0faca98084922caeb689579d338cf3e1c29"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:40:33.620Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.42","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.2.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12.9"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}