{"id":"CVE-2026-53296","state":"PUBLISHED","title":"mailbox: mailbox-test: free channels on probe error","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: mailbox-test: free channels on probe error\n\nOn probe error, free the previously obtained channels. This not only\nprevents a leak, but also UAF scenarios because the client structure\nwill be removed nonetheless because it was allocated with devm.","publishedAt":"2026-06-26T19:40:54.341Z","updatedAt":"2026-06-26T19:40:54.341Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"15c4cc3850cfe1b973eb7b63c02314b267f06a64","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"187069ccc3474516af32350e20d7e449160fa6de","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"81c9e7e4030e71391ab479c4c6e17b64802577aa","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"6c6ce2ccb4fcf1617fec83f91b21aa0265f30701","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"742001919653e7313b4e91780c5d108be1692365","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"02beb178e2e159daeb8f992d7abb16a37da31664","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"c02053a9055d5fdfd32432287cca8958db1d5bc5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mailbox/mailbox-test.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.4","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mailbox/mailbox-test.c"]}],"references":["https://git.kernel.org/stable/c/0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b","https://git.kernel.org/stable/c/15c4cc3850cfe1b973eb7b63c02314b267f06a64","https://git.kernel.org/stable/c/187069ccc3474516af32350e20d7e449160fa6de","https://git.kernel.org/stable/c/81c9e7e4030e71391ab479c4c6e17b64802577aa","https://git.kernel.org/stable/c/6c6ce2ccb4fcf1617fec83f91b21aa0265f30701","https://git.kernel.org/stable/c/742001919653e7313b4e91780c5d108be1692365","https://git.kernel.org/stable/c/02beb178e2e159daeb8f992d7abb16a37da31664","https://git.kernel.org/stable/c/c02053a9055d5fdfd32432287cca8958db1d5bc5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53296.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53296","state":"PUBLISHED","datePublished":"2026-06-26T19:40:54.341Z","dateUpdated":"2026-06-26T19:40:54.341Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.396Z"},"containers":{"cna":{"title":"mailbox: mailbox-test: free channels on probe error","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: mailbox-test: free channels on probe error\n\nOn probe error, free the previously obtained channels. This not only\nprevents a leak, but also UAF scenarios because the client structure\nwill be removed nonetheless because it was allocated with devm."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"15c4cc3850cfe1b973eb7b63c02314b267f06a64","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"187069ccc3474516af32350e20d7e449160fa6de","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"81c9e7e4030e71391ab479c4c6e17b64802577aa","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"6c6ce2ccb4fcf1617fec83f91b21aa0265f30701","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"742001919653e7313b4e91780c5d108be1692365","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"02beb178e2e159daeb8f992d7abb16a37da31664","versionType":"git"},{"version":"8ea4484d0c2bb4e2152261943fa1a3522654b1c7","status":"affected","lessThan":"c02053a9055d5fdfd32432287cca8958db1d5bc5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mailbox/mailbox-test.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.4","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mailbox/mailbox-test.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b"},{"url":"https://git.kernel.org/stable/c/15c4cc3850cfe1b973eb7b63c02314b267f06a64"},{"url":"https://git.kernel.org/stable/c/187069ccc3474516af32350e20d7e449160fa6de"},{"url":"https://git.kernel.org/stable/c/81c9e7e4030e71391ab479c4c6e17b64802577aa"},{"url":"https://git.kernel.org/stable/c/6c6ce2ccb4fcf1617fec83f91b21aa0265f30701"},{"url":"https://git.kernel.org/stable/c/742001919653e7313b4e91780c5d108be1692365"},{"url":"https://git.kernel.org/stable/c/02beb178e2e159daeb8f992d7abb16a37da31664"},{"url":"https://git.kernel.org/stable/c/c02053a9055d5fdfd32432287cca8958db1d5bc5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-26T19:40:54.341Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.6.141"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.12.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.18.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}