{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-22991","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.937Z","datePublished":"2026-01-23T15:24:12.191Z","dateUpdated":"2026-05-11T21:57:53.477Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:57:53.477Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: make free_choose_arg_map() resilient to partial allocation\n\nfree_choose_arg_map() may dereference a NULL pointer if its caller fails\nafter a partial allocation.\n\nFor example, in decode_choose_args(), if allocation of arg_map->args\nfails, execution jumps to the fail label and free_choose_arg_map() is\ncalled. Since arg_map->size is updated to a non-zero value before memory\nallocation, free_choose_arg_map() will iterate over arg_map->args and\ndereference a NULL pointer.\n\nTo prevent this potential NULL pointer dereference and make\nfree_choose_arg_map() more resilient, add checks for pointers before\niterating."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ceph/osdmap.c"],"versions":[{"version":"5cf9c4a9959b6273675310d14a834ef14fbca37c","lessThan":"9b3730dabcf3764bfe3ff07caf55e641a0b45234","status":"affected","versionType":"git"},{"version":"5cf9c4a9959b6273675310d14a834ef14fbca37c","lessThan":"851241d3f78a5505224dc21c03d8692f530256b4","status":"affected","versionType":"git"},{"version":"5cf9c4a9959b6273675310d14a834ef14fbca37c","lessThan":"ec1850f663da64842614c86b20fe734be070c2ba","status":"affected","versionType":"git"},{"version":"5cf9c4a9959b6273675310d14a834ef14fbca37c","lessThan":"8081faaf089db5280c3be820948469f7c58ef8dd","status":"affected","versionType":"git"},{"version":"5cf9c4a9959b6273675310d14a834ef14fbca37c","lessThan":"c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf","status":"affected","versionType":"git"},{"version":"5cf9c4a9959b6273675310d14a834ef14fbca37c","lessThan":"f21c3fdb96833aac2f533506899fe38c19cf49d5","status":"affected","versionType":"git"},{"version":"5cf9c4a9959b6273675310d14a834ef14fbca37c","lessThan":"e3fe30e57649c551757a02e1cad073c47e1e075e","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ceph/osdmap.c"],"versions":[{"version":"4.13","status":"affected"},{"version":"0","lessThan":"4.13","status":"unaffected","versionType":"semver"},{"version":"5.10.248","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.198","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.161","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.121","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.66","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.6","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":"4.13","versionEndExcluding":"5.10.248"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"5.15.198"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.1.161"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.6.121"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.12.66"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.18.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/9b3730dabcf3764bfe3ff07caf55e641a0b45234"},{"url":"https://git.kernel.org/stable/c/851241d3f78a5505224dc21c03d8692f530256b4"},{"url":"https://git.kernel.org/stable/c/ec1850f663da64842614c86b20fe734be070c2ba"},{"url":"https://git.kernel.org/stable/c/8081faaf089db5280c3be820948469f7c58ef8dd"},{"url":"https://git.kernel.org/stable/c/c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf"},{"url":"https://git.kernel.org/stable/c/f21c3fdb96833aac2f533506899fe38c19cf49d5"},{"url":"https://git.kernel.org/stable/c/e3fe30e57649c551757a02e1cad073c47e1e075e"}],"title":"libceph: make free_choose_arg_map() resilient to partial allocation","x_generator":{"engine":"bippy-1.2.0"}}}}