{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23193","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.985Z","datePublished":"2026-02-14T16:27:20.251Z","dateUpdated":"2026-05-11T22:02:07.544Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:02:07.544Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count()\n\nIn iscsit_dec_session_usage_count(), the function calls complete() while\nholding the sess->session_usage_lock. Similar to the connection usage count\nlogic, the waiter signaled by complete() (e.g., in the session release\npath) may wake up and free the iscsit_session structure immediately.\n\nThis creates a race condition where the current thread may attempt to\nexecute spin_unlock_bh() on a session structure that has already been\ndeallocated, resulting in a KASAN slab-use-after-free.\n\nTo resolve this, release the session_usage_lock before calling complete()\nto ensure all dereferences of the sess pointer are finished before the\nwaiter is allowed to proceed with deallocation."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/target/iscsi/iscsi_target_util.c"],"versions":[{"version":"e48354ce078c079996f89d715dfa44814b4eba01","lessThan":"2b64015550a13bcc72910be0565548d9a754d46d","status":"affected","versionType":"git"},{"version":"e48354ce078c079996f89d715dfa44814b4eba01","lessThan":"fd8b0900173307039d3a84644c2fee041a7ed4fb","status":"affected","versionType":"git"},{"version":"e48354ce078c079996f89d715dfa44814b4eba01","lessThan":"d8dbdc146e9e9a976931b78715be2e91299049f9","status":"affected","versionType":"git"},{"version":"e48354ce078c079996f89d715dfa44814b4eba01","lessThan":"11ebafffce31efc6abeb28c509017976fc49f1ca","status":"affected","versionType":"git"},{"version":"e48354ce078c079996f89d715dfa44814b4eba01","lessThan":"41b86a9ec037bd3435d68dd3692f0891a207e7e7","status":"affected","versionType":"git"},{"version":"e48354ce078c079996f89d715dfa44814b4eba01","lessThan":"4530f4e4d0e6a207110b0ffed0c911bca43531a4","status":"affected","versionType":"git"},{"version":"e48354ce078c079996f89d715dfa44814b4eba01","lessThan":"84dc6037390b8607c5551047d3970336cb51ba9a","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/target/iscsi/iscsi_target_util.c"],"versions":[{"version":"3.1","status":"affected"},{"version":"0","lessThan":"3.1","status":"unaffected","versionType":"semver"},{"version":"5.10.250","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.200","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.163","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.124","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.70","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.10","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.1","versionEndExcluding":"5.10.250"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.1","versionEndExcluding":"5.15.200"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.1","versionEndExcluding":"6.1.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.1","versionEndExcluding":"6.6.124"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.1","versionEndExcluding":"6.12.70"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.1","versionEndExcluding":"6.18.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.1","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2b64015550a13bcc72910be0565548d9a754d46d"},{"url":"https://git.kernel.org/stable/c/fd8b0900173307039d3a84644c2fee041a7ed4fb"},{"url":"https://git.kernel.org/stable/c/d8dbdc146e9e9a976931b78715be2e91299049f9"},{"url":"https://git.kernel.org/stable/c/11ebafffce31efc6abeb28c509017976fc49f1ca"},{"url":"https://git.kernel.org/stable/c/41b86a9ec037bd3435d68dd3692f0891a207e7e7"},{"url":"https://git.kernel.org/stable/c/4530f4e4d0e6a207110b0ffed0c911bca43531a4"},{"url":"https://git.kernel.org/stable/c/84dc6037390b8607c5551047d3970336cb51ba9a"}],"title":"scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count()","x_generator":{"engine":"bippy-1.2.0"}}}}