{"id":"CVE-2024-53065","state":"PUBLISHED","title":"mm/slab: fix warning caused by duplicate kmem_cache creation in kmem_buckets_create","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slab: fix warning caused by duplicate kmem_cache creation in kmem_buckets_create\n\nCommit b035f5a6d852 (\"mm: slab: reduce the kmalloc() minimum alignment\nif DMA bouncing possible\") reduced ARCH_KMALLOC_MINALIGN to 8 on arm64.\nHowever, with KASAN_HW_TAGS enabled, arch_slab_minalign() becomes 16.\nThis causes kmalloc_caches[*][8] to be aliased to kmalloc_caches[*][16],\nresulting in kmem_buckets_create() attempting to create a kmem_cache for\nsize 16 twice. This duplication triggers warnings on boot:\n\n[    2.325108] ------------[ cut here ]------------\n[    2.325135] kmem_cache of name 'memdup_user-16' already exists\n[    2.325783] WARNING: CPU: 0 PID: 1 at mm/slab_common.c:107 __kmem_cache_create_args+0xb8/0x3b0\n[    2.327957] Modules linked in:\n[    2.328550] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0-rc5mm-unstable-arm64+ #12\n[    2.328683] Hardware name: QEMU QEMU Virtual Machine, BIOS 2024.02-2 03/11/2024\n[    2.328790] pstate: 61000009 (nZCv daif -PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n[    2.328911] pc : __kmem_cache_create_args+0xb8/0x3b0\n[    2.328930] lr : __kmem_cache_create_args+0xb8/0x3b0\n[    2.328942] sp : ffff800083d6fc50\n[    2.328961] x29: ffff800083d6fc50 x28: f2ff0000c1674410 x27: ffff8000820b0598\n[    2.329061] x26: 000000007fffffff x25: 0000000000000010 x24: 0000000000002000\n[    2.329101] x23: ffff800083d6fce8 x22: ffff8000832222e8 x21: ffff800083222388\n[    2.329118] x20: f2ff0000c1674410 x19: f5ff0000c16364c0 x18: ffff800083d80030\n[    2.329135] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\n[    2.329152] x14: 0000000000000000 x13: 0a73747369786520 x12: 79646165726c6120\n[    2.329169] x11: 656820747563205b x10: 2d2d2d2d2d2d2d2d x9 : 0000000000000000\n[    2.329194] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000\n[    2.329210] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n[    2.329226] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000\n[    2.329291] Call trace:\n[    2.329407]  __kmem_cache_create_args+0xb8/0x3b0\n[    2.329499]  kmem_buckets_create+0xfc/0x320\n[    2.329526]  init_user_buckets+0x34/0x78\n[    2.329540]  do_one_initcall+0x64/0x3c8\n[    2.329550]  kernel_init_freeable+0x26c/0x578\n[    2.329562]  kernel_init+0x3c/0x258\n[    2.329574]  ret_from_fork+0x10/0x20\n[    2.329698] ---[ end trace 0000000000000000 ]---\n\n[    2.403704] ------------[ cut here ]------------\n[    2.404716] kmem_cache of name 'msg_msg-16' already exists\n[    2.404801] WARNING: CPU: 2 PID: 1 at mm/slab_common.c:107 __kmem_cache_create_args+0xb8/0x3b0\n[    2.404842] Modules linked in:\n[    2.404971] CPU: 2 UID: 0 PID: 1 Comm: swapper/0 Tainted: G        W          6.12.0-rc5mm-unstable-arm64+ #12\n[    2.405026] Tainted: [W]=WARN\n[    2.405043] Hardware name: QEMU QEMU Virtual Machine, BIOS 2024.02-2 03/11/2024\n[    2.405057] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[    2.405079] pc : __kmem_cache_create_args+0xb8/0x3b0\n[    2.405100] lr : __kmem_cache_create_args+0xb8/0x3b0\n[    2.405111] sp : ffff800083d6fc50\n[    2.405115] x29: ffff800083d6fc50 x28: fbff0000c1674410 x27: ffff8000820b0598\n[    2.405135] x26: 000000000000ffd0 x25: 0000000000000010 x24: 0000000000006000\n[    2.405153] x23: ffff800083d6fce8 x22: ffff8000832222e8 x21: ffff800083222388\n[    2.405169] x20: fbff0000c1674410 x19: fdff0000c163d6c0 x18: ffff800083d80030\n[    2.405185] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\n[    2.405201] x14: 0000000000000000 x13: 0a73747369786520 x12: 79646165726c6120\n[    2.405217] x11: 656820747563205b x10: 2d2d2d2d2d2d2d2d x9 : 0000000000000000\n[    2.405233] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000\n[    2.405248] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n[    2.405271] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000\n[    2.405287] Call trace:\n[    2\n---truncated---","publishedAt":"2024-11-19T17:22:34.763Z","updatedAt":"2026-05-11T20:50:10.478Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b32801d1255be1da62ea8134df3ed9f3331fba12","status":"affected","lessThan":"1b47f9febf48641d3530ec877f4d0995c58e6b73","versionType":"git"},{"version":"b32801d1255be1da62ea8134df3ed9f3331fba12","status":"affected","lessThan":"9c9201afebea1efc7ea4b8f721ee18a05bb8aca1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/slab_common.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.11.8","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/slab_common.c"]}],"references":["https://git.kernel.org/stable/c/1b47f9febf48641d3530ec877f4d0995c58e6b73","https://git.kernel.org/stable/c/9c9201afebea1efc7ea4b8f721ee18a05bb8aca1"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:04.920Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/53xxx/CVE-2024-53065.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-53065","state":"PUBLISHED","datePublished":"2024-11-19T17:22:34.763Z","dateUpdated":"2026-05-11T20:50:10.478Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-11-19T17:17:24.975Z"},"containers":{"cna":{"title":"mm/slab: fix warning caused by duplicate kmem_cache creation in kmem_buckets_create","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slab: fix warning caused by duplicate kmem_cache creation in kmem_buckets_create\n\nCommit b035f5a6d852 (\"mm: slab: reduce the kmalloc() minimum alignment\nif DMA bouncing possible\") reduced ARCH_KMALLOC_MINALIGN to 8 on arm64.\nHowever, with KASAN_HW_TAGS enabled, arch_slab_minalign() becomes 16.\nThis causes kmalloc_caches[*][8] to be aliased to kmalloc_caches[*][16],\nresulting in kmem_buckets_create() attempting to create a kmem_cache for\nsize 16 twice. This duplication triggers warnings on boot:\n\n[    2.325108] ------------[ cut here ]------------\n[    2.325135] kmem_cache of name 'memdup_user-16' already exists\n[    2.325783] WARNING: CPU: 0 PID: 1 at mm/slab_common.c:107 __kmem_cache_create_args+0xb8/0x3b0\n[    2.327957] Modules linked in:\n[    2.328550] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0-rc5mm-unstable-arm64+ #12\n[    2.328683] Hardware name: QEMU QEMU Virtual Machine, BIOS 2024.02-2 03/11/2024\n[    2.328790] pstate: 61000009 (nZCv daif -PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n[    2.328911] pc : __kmem_cache_create_args+0xb8/0x3b0\n[    2.328930] lr : __kmem_cache_create_args+0xb8/0x3b0\n[    2.328942] sp : ffff800083d6fc50\n[    2.328961] x29: ffff800083d6fc50 x28: f2ff0000c1674410 x27: ffff8000820b0598\n[    2.329061] x26: 000000007fffffff x25: 0000000000000010 x24: 0000000000002000\n[    2.329101] x23: ffff800083d6fce8 x22: ffff8000832222e8 x21: ffff800083222388\n[    2.329118] x20: f2ff0000c1674410 x19: f5ff0000c16364c0 x18: ffff800083d80030\n[    2.329135] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\n[    2.329152] x14: 0000000000000000 x13: 0a73747369786520 x12: 79646165726c6120\n[    2.329169] x11: 656820747563205b x10: 2d2d2d2d2d2d2d2d x9 : 0000000000000000\n[    2.329194] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000\n[    2.329210] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n[    2.329226] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000\n[    2.329291] Call trace:\n[    2.329407]  __kmem_cache_create_args+0xb8/0x3b0\n[    2.329499]  kmem_buckets_create+0xfc/0x320\n[    2.329526]  init_user_buckets+0x34/0x78\n[    2.329540]  do_one_initcall+0x64/0x3c8\n[    2.329550]  kernel_init_freeable+0x26c/0x578\n[    2.329562]  kernel_init+0x3c/0x258\n[    2.329574]  ret_from_fork+0x10/0x20\n[    2.329698] ---[ end trace 0000000000000000 ]---\n\n[    2.403704] ------------[ cut here ]------------\n[    2.404716] kmem_cache of name 'msg_msg-16' already exists\n[    2.404801] WARNING: CPU: 2 PID: 1 at mm/slab_common.c:107 __kmem_cache_create_args+0xb8/0x3b0\n[    2.404842] Modules linked in:\n[    2.404971] CPU: 2 UID: 0 PID: 1 Comm: swapper/0 Tainted: G        W          6.12.0-rc5mm-unstable-arm64+ #12\n[    2.405026] Tainted: [W]=WARN\n[    2.405043] Hardware name: QEMU QEMU Virtual Machine, BIOS 2024.02-2 03/11/2024\n[    2.405057] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[    2.405079] pc : __kmem_cache_create_args+0xb8/0x3b0\n[    2.405100] lr : __kmem_cache_create_args+0xb8/0x3b0\n[    2.405111] sp : ffff800083d6fc50\n[    2.405115] x29: ffff800083d6fc50 x28: fbff0000c1674410 x27: ffff8000820b0598\n[    2.405135] x26: 000000000000ffd0 x25: 0000000000000010 x24: 0000000000006000\n[    2.405153] x23: ffff800083d6fce8 x22: ffff8000832222e8 x21: ffff800083222388\n[    2.405169] x20: fbff0000c1674410 x19: fdff0000c163d6c0 x18: ffff800083d80030\n[    2.405185] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\n[    2.405201] x14: 0000000000000000 x13: 0a73747369786520 x12: 79646165726c6120\n[    2.405217] x11: 656820747563205b x10: 2d2d2d2d2d2d2d2d x9 : 0000000000000000\n[    2.405233] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000\n[    2.405248] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n[    2.405271] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000\n[    2.405287] Call trace:\n[    2\n---truncated---"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b32801d1255be1da62ea8134df3ed9f3331fba12","status":"affected","lessThan":"1b47f9febf48641d3530ec877f4d0995c58e6b73","versionType":"git"},{"version":"b32801d1255be1da62ea8134df3ed9f3331fba12","status":"affected","lessThan":"9c9201afebea1efc7ea4b8f721ee18a05bb8aca1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/slab_common.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.11.8","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["mm/slab_common.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/1b47f9febf48641d3530ec877f4d0995c58e6b73"},{"url":"https://git.kernel.org/stable/c/9c9201afebea1efc7ea4b8f721ee18a05bb8aca1"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:50:10.478Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.11.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2024-53065","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T20:12:36.597221Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","description":"CWE-noinfo Not enough information"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T20:17:16.737Z"}}]}}}