{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52958","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.373Z","datePublished":"2026-06-24T16:28:39.723Z","dateUpdated":"2026-06-28T06:37:19.643Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-28T06:37:19.643Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: Fix potential out-of-bounds access in osdmap_decode()\n\nWhen decoding osd_state and osd_weight from an incoming osdmap in\nosdmap_decode(), both are decoded for each osd, i.e., map->max_osd\ntimes. The ceph_decode_need() check only accounts for\nsizeof(*map->osd_weight) once. This can potentially result in an\nout-of-bounds memory access if the incoming message is corrupted such\nthat the max_osd value exceeds the actual content of the osdmap message.\n\nThis patch fixes the issue by changing the corresponding part in the\nceph_decode_need() check to account for\nmap->max_osd*sizeof(*map->osd_weight)."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":9.1,"baseSeverity":"CRITICAL"}}],"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":"dcbc919a5dc8c2629684a113a90c0b6fe10c3462","lessThan":"36a79759a288961b1ff28a68ec2d1f56f6848098","status":"affected","versionType":"git"},{"version":"dcbc919a5dc8c2629684a113a90c0b6fe10c3462","lessThan":"3f2575bb7f955d42569d96c3e04fa958a0dcf4b4","status":"affected","versionType":"git"},{"version":"dcbc919a5dc8c2629684a113a90c0b6fe10c3462","lessThan":"8713bbc4b2b9ad78f803978e54b7e49dd21bd9be","status":"affected","versionType":"git"},{"version":"dcbc919a5dc8c2629684a113a90c0b6fe10c3462","lessThan":"0d2dd7e6bb74fd7712aa73457a4a821906c6863a","status":"affected","versionType":"git"},{"version":"dcbc919a5dc8c2629684a113a90c0b6fe10c3462","lessThan":"e7187f33c02488697ec0d01d82bf7a3f8deaba8f","status":"affected","versionType":"git"},{"version":"dcbc919a5dc8c2629684a113a90c0b6fe10c3462","lessThan":"48df98d12b15360cd56af5c1f460307b340c1197","status":"affected","versionType":"git"},{"version":"dcbc919a5dc8c2629684a113a90c0b6fe10c3462","lessThan":"ee933694645dac062d65fc2743f92bc06fa0db6b","status":"affected","versionType":"git"},{"version":"dcbc919a5dc8c2629684a113a90c0b6fe10c3462","lessThan":"35d0ed82d03e5ee77ea4f31f20e29562a7721649","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":"5.3","status":"affected"},{"version":"0","lessThan":"5.3","status":"unaffected","versionType":"semver"},{"version":"5.10.258","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.209","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.175","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.141","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.91","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.33","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.10","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","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":"5.3","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.6.141"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.12.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.18.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/36a79759a288961b1ff28a68ec2d1f56f6848098"},{"url":"https://git.kernel.org/stable/c/3f2575bb7f955d42569d96c3e04fa958a0dcf4b4"},{"url":"https://git.kernel.org/stable/c/8713bbc4b2b9ad78f803978e54b7e49dd21bd9be"},{"url":"https://git.kernel.org/stable/c/0d2dd7e6bb74fd7712aa73457a4a821906c6863a"},{"url":"https://git.kernel.org/stable/c/e7187f33c02488697ec0d01d82bf7a3f8deaba8f"},{"url":"https://git.kernel.org/stable/c/48df98d12b15360cd56af5c1f460307b340c1197"},{"url":"https://git.kernel.org/stable/c/ee933694645dac062d65fc2743f92bc06fa0db6b"},{"url":"https://git.kernel.org/stable/c/35d0ed82d03e5ee77ea4f31f20e29562a7721649"}],"title":"libceph: Fix potential out-of-bounds access in osdmap_decode()","x_generator":{"engine":"bippy-1.2.0"}}}}