{
  "threat_severity" : "Moderate",
  "public_date" : "2024-12-02T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: mm: page_alloc: move mlocked flag clearance into free_pages_prepare()",
    "id" : "2329929",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2329929"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-401",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nmm: page_alloc: move mlocked flag clearance into free_pages_prepare()\nSyzbot reported a bad page state problem caused by a page being freed\nusing free_page() still having a mlocked flag at free_pages_prepare()\nstage:\nBUG: Bad page state in process syz.5.504  pfn:61f45\npage: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x61f45\nflags: 0xfff00000080204(referenced|workingset|mlocked|node=0|zone=1|lastcpupid=0x7ff)\nraw: 00fff00000080204 0000000000000000 dead000000000122 0000000000000000\nraw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000\npage dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set\npage_owner tracks the page as allocated\npage last allocated via order 0, migratetype Unmovable, gfp_mask 0x400dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), pid 8443, tgid 8442 (syz.5.504), ts 201884660643, free_ts 201499827394\nset_page_owner include/linux/page_owner.h:32 [inline]\npost_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1537\nprep_new_page mm/page_alloc.c:1545 [inline]\nget_page_from_freelist+0x303f/0x3190 mm/page_alloc.c:3457\n__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4733\nalloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265\nkvm_coalesced_mmio_init+0x1f/0xf0 virt/kvm/coalesced_mmio.c:99\nkvm_create_vm virt/kvm/kvm_main.c:1235 [inline]\nkvm_dev_ioctl_create_vm virt/kvm/kvm_main.c:5488 [inline]\nkvm_dev_ioctl+0x12dc/0x2240 virt/kvm/kvm_main.c:5530\n__do_compat_sys_ioctl fs/ioctl.c:1007 [inline]\n__se_compat_sys_ioctl+0x510/0xc90 fs/ioctl.c:950\ndo_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]\n__do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386\ndo_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411\nentry_SYSENTER_compat_after_hwframe+0x84/0x8e\npage last free pid 8399 tgid 8399 stack trace:\nreset_page_owner include/linux/page_owner.h:25 [inline]\nfree_pages_prepare mm/page_alloc.c:1108 [inline]\nfree_unref_folios+0xf12/0x18d0 mm/page_alloc.c:2686\nfolios_put_refs+0x76c/0x860 mm/swap.c:1007\nfree_pages_and_swap_cache+0x5c8/0x690 mm/swap_state.c:335\n__tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]\ntlb_batch_pages_flush mm/mmu_gather.c:149 [inline]\ntlb_flush_mmu_free mm/mmu_gather.c:366 [inline]\ntlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373\ntlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:465\nexit_mmap+0x496/0xc40 mm/mmap.c:1926\n__mmput+0x115/0x390 kernel/fork.c:1348\nexit_mm+0x220/0x310 kernel/exit.c:571\ndo_exit+0x9b2/0x28e0 kernel/exit.c:926\ndo_group_exit+0x207/0x2c0 kernel/exit.c:1088\n__do_sys_exit_group kernel/exit.c:1099 [inline]\n__se_sys_exit_group kernel/exit.c:1097 [inline]\n__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1097\nx64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232\ndo_syscall_x64 arch/x86/entry/common.c:52 [inline]\ndo_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\nentry_SYSCALL_64_after_hwframe+0x77/0x7f\nModules linked in:\nCPU: 0 UID: 0 PID: 8442 Comm: syz.5.504 Not tainted 6.12.0-rc6-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nCall Trace:\n<TASK>\n__dump_stack lib/dump_stack.c:94 [inline]\ndump_stack_lvl+0x241/0x360 lib/dump_stack.c:120\nbad_page+0x176/0x1d0 mm/page_alloc.c:501\nfree_page_is_bad mm/page_alloc.c:918 [inline]\nfree_pages_prepare mm/page_alloc.c:1100 [inline]\nfree_unref_page+0xed0/0xf20 mm/page_alloc.c:2638\nkvm_destroy_vm virt/kvm/kvm_main.c:1327 [inline]\nkvm_put_kvm+0xc75/0x1350 virt/kvm/kvm_main.c:1386\nkvm_vcpu_release+0x54/0x60 virt/kvm/kvm_main.c:4143\n__fput+0x23f/0x880 fs/file_table.c:431\ntask_work_run+0x24f/0x310 kernel/task_work.c:239\nexit_task_work include/linux/task_work.h:43 [inline]\ndo_exit+0xa2f/0x28e0 kernel/exit.c:939\ndo_group_exit+0x207/0x2c0 kernel/exit.c:1088\n__do_sys_exit_group kernel/exit.c:1099 [in\n---truncated---" ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:6966",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-570.12.1.el9_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:6966",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-570.12.1.el9_6"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2024-53105\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-53105\nhttps://lore.kernel.org/linux-cve-announce/2024120244-CVE-2024-53105-d978@gregkh/T" ],
  "name" : "CVE-2024-53105",
  "csaw" : false
}