{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-39482", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-25T14:23:23.746Z", "datePublished": "2024-07-05T06:55:10.599Z", "dateUpdated": "2026-05-12T11:55:25.412Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:21:24.514Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbcache: fix variable length array abuse in btree_iter\n\nbtree_iter is used in two ways: either allocated on the stack with a\nfixed size MAX_BSETS, or from a mempool with a dynamic size based on the\nspecific cache set. Previously, the struct had a fixed-length array of\nsize MAX_BSETS which was indexed out-of-bounds for the dynamically-sized\niterators, which causes UBSAN to complain.\n\nThis patch uses the same approach as in bcachefs's sort_iter and splits\nthe iterator into a btree_iter with a flexible array member and a\nbtree_iter_stack which embeds a btree_iter as well as a fixed-length\ndata array." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/md/bcache/bset.c", "drivers/md/bcache/bset.h", "drivers/md/bcache/btree.c", "drivers/md/bcache/super.c", "drivers/md/bcache/sysfs.c", "drivers/md/bcache/writeback.c" ], "versions": [ { "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "2c3d7b03b658dc8bfa6112b194b67b92a87e081b", "status": "affected", "versionType": "git" }, { "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "5a1922adc5798b7ec894cd3f197afb6f9591b023", "status": "affected", "versionType": "git" }, { "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "934e1e4331859183a861f396d7dfaf33cb5afb02", "status": "affected", "versionType": "git" }, { "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "6479b9f41583b013041943c4602e1ad61cec8148", "status": "affected", "versionType": "git" }, { "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "0c31344e22dd8d6b1394c6e4c41d639015bdc671", "status": "affected", "versionType": "git" }, { "version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "3a861560ccb35f2a4f0a4b8207fa7c2a35fc7f31", "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/md/bcache/bset.c", "drivers/md/bcache/bset.h", "drivers/md/bcache/btree.c", "drivers/md/bcache/super.c", "drivers/md/bcache/sysfs.c", "drivers/md/bcache/writeback.c" ], "versions": [ { "version": "3.10", "status": "affected" }, { "version": "0", "lessThan": "3.10", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.221", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.162", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.94", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.34", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.5", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "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": "3.10", "versionEndExcluding": "5.10.221" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "5.15.162" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.1.94" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.6.34" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.9.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/2c3d7b03b658dc8bfa6112b194b67b92a87e081b" }, { "url": 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