{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: fix DEBUG_LOCKS_WARN_ON(1) when dissolve_free_hugetlb_folio()\n\nWhen I did memory failure tests recently, below warning occurs:\n\nDEBUG_LOCKS_WARN_ON(1)\nWARNING: CPU: 8 PID: 1011 at kernel/locking/lockdep.c:232 __lock_acquire+0xccb/0x1ca0\nModules linked in: mce_inject hwpoison_inject\nCPU: 8 PID: 1011 Comm: bash Kdump: loaded Not tainted 6.9.0-rc3-next-20240410-00012-gdb69f219f4be #3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\nRIP: 0010:__lock_acquire+0xccb/0x1ca0\nRSP: 0018:ffffa7a1c7fe3bd0 EFLAGS: 00000082\nRAX: 0000000000000000 RBX: eb851eb853975fcf RCX: ffffa1ce5fc1c9c8\nRDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffffa1ce5fc1c9c0\nRBP: ffffa1c6865d3280 R08: ffffffffb0f570a8 R09: 0000000000009ffb\nR10: 0000000000000286 R11: ffffffffb0f2ad50 R12: ffffa1c6865d3d10\nR13: ffffa1c6865d3c70 R14: 0000000000000000 R15: 0000000000000004\nFS:  00007ff9f32aa740(0000) GS:ffffa1ce5fc00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007ff9f3134ba0 CR3: 00000008484e4000 CR4: 00000000000006f0\nCall Trace:\n <TASK>\n lock_acquire+0xbe/0x2d0\n _raw_spin_lock_irqsave+0x3a/0x60\n hugepage_subpool_put_pages.part.0+0xe/0xc0\n free_huge_folio+0x253/0x3f0\n dissolve_free_huge_page+0x147/0x210\n __page_handle_poison+0x9/0x70\n memory_failure+0x4e6/0x8c0\n hard_offline_page_store+0x55/0xa0\n kernfs_fop_write_iter+0x12c/0x1d0\n vfs_write+0x380/0x540\n ksys_write+0x64/0xe0\n do_syscall_64+0xbc/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7ff9f3114887\nRSP: 002b:00007ffecbacb458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007ff9f3114887\nRDX: 000000000000000c RSI: 0000564494164e10 RDI: 0000000000000001\nRBP: 0000564494164e10 R08: 00007ff9f31d1460 R09: 000000007fffffff\nR10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c\nR13: 00007ff9f321b780 R14: 00007ff9f3217600 R15: 00007ff9f3216a00\n </TASK>\nKernel panic - not syncing: kernel: panic_on_warn set ...\nCPU: 8 PID: 1011 Comm: bash Kdump: loaded Not tainted 6.9.0-rc3-next-20240410-00012-gdb69f219f4be #3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\nCall Trace:\n <TASK>\n panic+0x326/0x350\n check_panic_on_warn+0x4f/0x50\n __warn+0x98/0x190\n report_bug+0x18e/0x1a0\n handle_bug+0x3d/0x70\n exc_invalid_op+0x18/0x70\n asm_exc_invalid_op+0x1a/0x20\nRIP: 0010:__lock_acquire+0xccb/0x1ca0\nRSP: 0018:ffffa7a1c7fe3bd0 EFLAGS: 00000082\nRAX: 0000000000000000 RBX: eb851eb853975fcf RCX: ffffa1ce5fc1c9c8\nRDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffffa1ce5fc1c9c0\nRBP: ffffa1c6865d3280 R08: ffffffffb0f570a8 R09: 0000000000009ffb\nR10: 0000000000000286 R11: ffffffffb0f2ad50 R12: ffffa1c6865d3d10\nR13: ffffa1c6865d3c70 R14: 0000000000000000 R15: 0000000000000004\n lock_acquire+0xbe/0x2d0\n _raw_spin_lock_irqsave+0x3a/0x60\n hugepage_subpool_put_pages.part.0+0xe/0xc0\n free_huge_folio+0x253/0x3f0\n dissolve_free_huge_page+0x147/0x210\n __page_handle_poison+0x9/0x70\n memory_failure+0x4e6/0x8c0\n hard_offline_page_store+0x55/0xa0\n kernfs_fop_write_iter+0x12c/0x1d0\n vfs_write+0x380/0x540\n ksys_write+0x64/0xe0\n do_syscall_64+0xbc/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7ff9f3114887\nRSP: 002b:00007ffecbacb458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007ff9f3114887\nRDX: 000000000000000c RSI: 0000564494164e10 RDI: 0000000000000001\nRBP: 0000564494164e10 R08: 00007ff9f31d1460 R09: 000000007fffffff\nR10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c\nR13: 00007ff9f321b780 R14: 00007ff9f3217600 R15: 00007ff9f3216a00\n </TASK>\n\nAfter git bisecting and digging into the code, I believe the root cause is\nthat _deferred_list field of folio is unioned with _hugetlb_subpool field.\nIn __update_and_free_hugetlb_folio(), folio->_deferred_\n---truncated---"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "mm/hugetlb.c"
               ],
               "versions": [
                  {
                     "version": "1b4ce2952b4f",
                     "lessThan": "2effe407f756",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "32c877191e02",
                     "lessThan": "7e0a32287741",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "32c877191e02",
                     "lessThan": "9c9b32d46afa",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "32c877191e02",
                     "lessThan": "52ccdde16b65",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "mm/hugetlb.c"
               ],
               "versions": [
                  {
                     "version": "6.5",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.5",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.91",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.31",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.9",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/2effe407f7563add41750fd7e03da4ea44b98099"
            },
            {
               "url": "https://git.kernel.org/stable/c/7e0a322877416e8c648819a8e441cf8c790b2cce"
            },
            {
               "url": "https://git.kernel.org/stable/c/9c9b32d46afab2d911897914181c488954012300"
            },
            {
               "url": "https://git.kernel.org/stable/c/52ccdde16b6540abe43b6f8d8e1e1ec90b0983af"
            }
         ],
         "title": "mm/hugetlb: fix DEBUG_LOCKS_WARN_ON(1) when dissolve_free_hugetlb_folio()",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-36028",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}