CVE-2024-26987 (GCVE-0-2024-26987)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:27 – Updated: 2026-05-11 20:08
VLAI?
Title
mm/memory-failure: fix deadlock when hugetlb_optimize_vmemmap is enabled
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: fix deadlock when hugetlb_optimize_vmemmap is enabled When I did hard offline test with hugetlb pages, below deadlock occurs: ====================================================== WARNING: possible circular locking dependency detected 6.8.0-11409-gf6cef5f8c37f #1 Not tainted ------------------------------------------------------ bash/46904 is trying to acquire lock: ffffffffabe68910 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_dec+0x16/0x60 but task is already holding lock: ffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3:3}, at: zone_pcp_disable+0x16/0x40 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (pcp_batch_high_lock){+.+.}-{3:3}: __mutex_lock+0x6c/0x770 page_alloc_cpu_online+0x3c/0x70 cpuhp_invoke_callback+0x397/0x5f0 __cpuhp_invoke_callback_range+0x71/0xe0 _cpu_up+0xeb/0x210 cpu_up+0x91/0xe0 cpuhp_bringup_mask+0x49/0xb0 bringup_nonboot_cpus+0xb7/0xe0 smp_init+0x25/0xa0 kernel_init_freeable+0x15f/0x3e0 kernel_init+0x15/0x1b0 ret_from_fork+0x2f/0x50 ret_from_fork_asm+0x1a/0x30 -> #0 (cpu_hotplug_lock){++++}-{0:0}: __lock_acquire+0x1298/0x1cd0 lock_acquire+0xc0/0x2b0 cpus_read_lock+0x2a/0xc0 static_key_slow_dec+0x16/0x60 __hugetlb_vmemmap_restore_folio+0x1b9/0x200 dissolve_free_huge_page+0x211/0x260 __page_handle_poison+0x45/0xc0 memory_failure+0x65e/0xc70 hard_offline_page_store+0x55/0xa0 kernfs_fop_write_iter+0x12c/0x1d0 vfs_write+0x387/0x550 ksys_write+0x64/0xe0 do_syscall_64+0xca/0x1e0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(pcp_batch_high_lock); lock(cpu_hotplug_lock); lock(pcp_batch_high_lock); rlock(cpu_hotplug_lock); *** DEADLOCK *** 5 locks held by bash/46904: #0: ffff98f6c3bb23f0 (sb_writers#5){.+.+}-{0:0}, at: ksys_write+0x64/0xe0 #1: ffff98f6c328e488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0xf8/0x1d0 #2: ffff98ef83b31890 (kn->active#113){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x100/0x1d0 #3: ffffffffabf9db48 (mf_mutex){+.+.}-{3:3}, at: memory_failure+0x44/0xc70 #4: ffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3:3}, at: zone_pcp_disable+0x16/0x40 stack backtrace: CPU: 10 PID: 46904 Comm: bash Kdump: loaded Not tainted 6.8.0-11409-gf6cef5f8c37f #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x68/0xa0 check_noncircular+0x129/0x140 __lock_acquire+0x1298/0x1cd0 lock_acquire+0xc0/0x2b0 cpus_read_lock+0x2a/0xc0 static_key_slow_dec+0x16/0x60 __hugetlb_vmemmap_restore_folio+0x1b9/0x200 dissolve_free_huge_page+0x211/0x260 __page_handle_poison+0x45/0xc0 memory_failure+0x65e/0xc70 hard_offline_page_store+0x55/0xa0 kernfs_fop_write_iter+0x12c/0x1d0 vfs_write+0x387/0x550 ksys_write+0x64/0xe0 do_syscall_64+0xca/0x1e0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fc862314887 Code: 10 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 RSP: 002b:00007fff19311268 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007fc862314887 RDX: 000000000000000c RSI: 000056405645fe10 RDI: 0000000000000001 RBP: 000056405645fe10 R08: 00007fc8623d1460 R09: 000000007fffffff R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c R13: 00007fc86241b780 R14: 00007fc862417600 R15: 00007fc862416a00 In short, below scene breaks the ---truncated---
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: a6b40850c442bf996e729e1d441d3dbc37cea171 , < 5ef7ba2799a3b5ed292b8f6407376e2c25ef002e (git)
Affected: a6b40850c442bf996e729e1d441d3dbc37cea171 , < 882e1180c83f5b75bae03d0ccc31ccedfe5159de (git)
Affected: a6b40850c442bf996e729e1d441d3dbc37cea171 , < 49955b24002dc16a0ae2e83a57a2a6c863a1845c (git)
Affected: a6b40850c442bf996e729e1d441d3dbc37cea171 , < 1983184c22dd84a4d95a71e5c6775c2638557dc7 (git)
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Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 6.1.88 , ≤ 6.1.* (semver)
Unaffected: 6.6.29 , ≤ 6.6.* (semver)
Unaffected: 6.8.8 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/memory-failure: fix deadlock when hugetlb_optimize_vmemmap is enabled\\n\\nWhen I did hard offline test with hugetlb pages, below deadlock occurs:\\n\\n======================================================\\nWARNING: possible circular locking dependency detected\\n6.8.0-11409-gf6cef5f8c37f #1 Not tainted\\n------------------------------------------------------\\nbash/46904 is trying to acquire lock:\\nffffffffabe68910 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_dec+0x16/0x60\\n\\nbut task is already holding lock:\\nffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3:3}, at: zone_pcp_disable+0x16/0x40\\n\\nwhich lock already depends on the new lock.\\n\\nthe existing dependency chain (in reverse order) is:\\n\\n-\u003e #1 (pcp_batch_high_lock){+.+.}-{3:3}:\\n       __mutex_lock+0x6c/0x770\\n       page_alloc_cpu_online+0x3c/0x70\\n       cpuhp_invoke_callback+0x397/0x5f0\\n       __cpuhp_invoke_callback_range+0x71/0xe0\\n       _cpu_up+0xeb/0x210\\n       cpu_up+0x91/0xe0\\n       cpuhp_bringup_mask+0x49/0xb0\\n       bringup_nonboot_cpus+0xb7/0xe0\\n       smp_init+0x25/0xa0\\n       kernel_init_freeable+0x15f/0x3e0\\n       kernel_init+0x15/0x1b0\\n       ret_from_fork+0x2f/0x50\\n       ret_from_fork_asm+0x1a/0x30\\n\\n-\u003e #0 (cpu_hotplug_lock){++++}-{0:0}:\\n       __lock_acquire+0x1298/0x1cd0\\n       lock_acquire+0xc0/0x2b0\\n       cpus_read_lock+0x2a/0xc0\\n       static_key_slow_dec+0x16/0x60\\n       __hugetlb_vmemmap_restore_folio+0x1b9/0x200\\n       dissolve_free_huge_page+0x211/0x260\\n       __page_handle_poison+0x45/0xc0\\n       memory_failure+0x65e/0xc70\\n       hard_offline_page_store+0x55/0xa0\\n       kernfs_fop_write_iter+0x12c/0x1d0\\n       vfs_write+0x387/0x550\\n       ksys_write+0x64/0xe0\\n       do_syscall_64+0xca/0x1e0\\n       entry_SYSCALL_64_after_hwframe+0x6d/0x75\\n\\nother info that might help us debug this:\\n\\n Possible unsafe locking scenario:\\n\\n       CPU0                    CPU1\\n       ----                    ----\\n  lock(pcp_batch_high_lock);\\n                               lock(cpu_hotplug_lock);\\n                               lock(pcp_batch_high_lock);\\n  rlock(cpu_hotplug_lock);\\n\\n *** DEADLOCK ***\\n\\n5 locks held by bash/46904:\\n #0: ffff98f6c3bb23f0 (sb_writers#5){.+.+}-{0:0}, at: ksys_write+0x64/0xe0\\n #1: ffff98f6c328e488 (\u0026of-\u003emutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0xf8/0x1d0\\n #2: ffff98ef83b31890 (kn-\u003eactive#113){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x100/0x1d0\\n #3: ffffffffabf9db48 (mf_mutex){+.+.}-{3:3}, at: memory_failure+0x44/0xc70\\n #4: ffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3:3}, at: zone_pcp_disable+0x16/0x40\\n\\nstack backtrace:\\nCPU: 10 PID: 46904 Comm: bash Kdump: loaded Not tainted 6.8.0-11409-gf6cef5f8c37f #1\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\\nCall Trace:\\n \u003cTASK\u003e\\n dump_stack_lvl+0x68/0xa0\\n check_noncircular+0x129/0x140\\n __lock_acquire+0x1298/0x1cd0\\n lock_acquire+0xc0/0x2b0\\n cpus_read_lock+0x2a/0xc0\\n static_key_slow_dec+0x16/0x60\\n __hugetlb_vmemmap_restore_folio+0x1b9/0x200\\n dissolve_free_huge_page+0x211/0x260\\n __page_handle_poison+0x45/0xc0\\n memory_failure+0x65e/0xc70\\n hard_offline_page_store+0x55/0xa0\\n kernfs_fop_write_iter+0x12c/0x1d0\\n vfs_write+0x387/0x550\\n ksys_write+0x64/0xe0\\n do_syscall_64+0xca/0x1e0\\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\\nRIP: 0033:0x7fc862314887\\nCode: 10 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24\\nRSP: 002b:00007fff19311268 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\\nRAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007fc862314887\\nRDX: 000000000000000c RSI: 000056405645fe10 RDI: 0000000000000001\\nRBP: 000056405645fe10 R08: 00007fc8623d1460 R09: 000000007fffffff\\nR10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c\\nR13: 00007fc86241b780 R14: 00007fc862417600 R15: 00007fc862416a00\\n\\nIn short, below scene breaks the \\n---truncated---\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: mm/memory-failure: corrige el interbloqueo cuando Hugetlb_optimize_vmemmap est\\u00e1 habilitado Cuando hice una prueba dura sin conexi\\u00f3n con p\\u00e1ginas de Hugetlb, se produce el siguiente interbloqueo: ============ ========================================== ADVERTENCIA: posible dependencia de bloqueo circular detectada 6.8 .0-11409-gf6cef5f8c37f #1 No contaminado ---------------------------------------- -------------- bash/46904 est\\u00e1 intentando adquirir el bloqueo: ffffffffabe68910 (cpu_hotplug_lock){++++}-{0:0}, en: static_key_slow_dec+0x16/0x60 pero la tarea est\\u00e1 ya mantiene el bloqueo: ffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3:3}, en: zone_pcp_disable+0x16/0x40 cuyo bloqueo ya depende del nuevo bloqueo. la cadena de dependencia existente (en orden inverso) es: -\u0026gt; #1 (pcp_batch_high_lock){+.+.}-{3:3}: __mutex_lock+0x6c/0x770 page_alloc_cpu_online+0x3c/0x70 cpuhp_invoke_callback+0x397/0x5f0 __cpuhp_invoke_callback_range+0x71/ 0xe0 _cpu_up+0xeb/0x210 cpu_up+0x91/0xe0 cpuhp_bringup_mask+0x49/0xb0 Bringup_nonboot_cpus+0xb7/0xe0 smp_init+0x25/0xa0 kernel_init_freeable+0x15f/0x3e0 kernel_init+0x15/0x1b0 t_from_fork+0x2f/0x50 ret_from_fork_asm+0x1a/0x30 -\u0026gt; #0 (cpu_hotplug_lock){++++}-{0:0}: __lock_acquire+0x1298/0x1cd0 lock_acquire+0xc0/0x2b0 cpus_read_lock+0x2a/0xc0 static_key_slow_dec+0x16/0x60 __hugetlb_vmemmap_restore_folio+0x1b9/0x200 dissolve_free_huge _p\\u00e1gina+0x211/0x260 __p\\u00e1gina_handle_poison+0x45/ 0xc0 error_de_memoria+0x65e/0xc70 hard_offline_page_store+0x55/0xa0 kernfs_fop_write_iter+0x12c/0x1d0 vfs_write+0x387/0x550 ksys_write+0x64/0xe0 do_syscall_64+0xca/0x1e0 entrada_SYSCALL_6 4_after_hwframe+0x6d/0x75 otra informaci\\u00f3n que podr\\u00eda ayudarnos a depurar esto: Posible escenario de bloqueo inseguro: CPU0 CPU1 ---- ---- bloqueo(pcp_batch_high_lock); bloquear(cpu_hotplug_lock); bloquear(pcp_batch_high_lock); rlock(cpu_hotplug_lock); *** DEADLOCK *** 5 bloqueos retenidos por bash/46904: #0: ffff98f6c3bb23f0 (sb_writers#5){.+.+}-{0:0}, en: ksys_write+0x64/0xe0 #1: ffff98f6c328e488 (\u0026amp;of -\u0026gt;mutex){+.+.}-{3:3}, en: kernfs_fop_write_iter+0xf8/0x1d0 #2: ffff98ef83b31890 (kn-\u0026gt;active#113){.+.+}-{0:0}, en : kernfs_fop_write_iter+0x100/0x1d0 #3: ffffffffabf9db48 (mf_mutex){+.+.}-{3:3}, en: Memory_failure+0x44/0xc70 #4: ffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3: 3}, en: zone_pcp_disable+0x16/0x40 seguimiento de pila: CPU: 10 PID: 46904 Comm: bash Kdump: cargado No contaminado 6.8.0-11409-gf6cef5f8c37f #1 Nombre de hardware: PC est\\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 01/04/2014 Seguimiento de llamadas:  dump_stack_lvl+0x68/0xa0 check_noncircular+0x129/0x140 __lock_acquire+0x1298/0x1cd0 lock_acquire+0xc0/0x2b0 cpus _read_lock+0x2a /0xc0 static_key_slow_dec+0x16/0x60 __hugetlb_vmemmap_restore_folio+0x1b9/0x200 dissolve_free_huge_page+0x211/0x260 __page_handle_poison+0x45/0xc0 Memory_failure+0x65e/0xc70 hard_offline_page_store+0x55/0 xa0 kernfs_fop_write_iter+0x12c/0x1d0 vfs_write+0x387/0x550 ksys_write+0x64/0xe0 do_syscall_64+0xca /0x1e0 Entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fc862314887 C\\u00f3digo: 10 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 \u0026lt;48\u0026gt; 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 RSP: 002b:00007fff19311268 EFLAGS: 00000246 : 0000000000000001 RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007fc862314887 RDX: 000000000000000c RSI: 000056405645fe10 RDI: 0000000000000001 RBP: 000056405645fe10 R08: 00007fc8623d1460 R09: 000000007ffffff R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c R13: 00007fc86241b780 R14: 00007fc862417600 R15: 00007fc862416a00 En resumen, La siguiente escena rompe el ---truncado---\"}]",
      "id": "CVE-2024-26987",
      "lastModified": "2024-11-21T09:03:33.697",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
      "published": "2024-05-01T06:15:16.260",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/1983184c22dd84a4d95a71e5c6775c2638557dc7\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/49955b24002dc16a0ae2e83a57a2a6c863a1845c\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/5ef7ba2799a3b5ed292b8f6407376e2c25ef002e\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/882e1180c83f5b75bae03d0ccc31ccedfe5159de\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/1983184c22dd84a4d95a71e5c6775c2638557dc7\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/49955b24002dc16a0ae2e83a57a2a6c863a1845c\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/5ef7ba2799a3b5ed292b8f6407376e2c25ef002e\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/882e1180c83f5b75bae03d0ccc31ccedfe5159de\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-667\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26987\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-01T06:15:16.260\",\"lastModified\":\"2025-11-04T18:16:04.810\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/memory-failure: fix deadlock when hugetlb_optimize_vmemmap is enabled\\n\\nWhen I did hard offline test with hugetlb pages, below deadlock occurs:\\n\\n======================================================\\nWARNING: possible circular locking dependency detected\\n6.8.0-11409-gf6cef5f8c37f #1 Not tainted\\n------------------------------------------------------\\nbash/46904 is trying to acquire lock:\\nffffffffabe68910 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_dec+0x16/0x60\\n\\nbut task is already holding lock:\\nffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3:3}, at: zone_pcp_disable+0x16/0x40\\n\\nwhich lock already depends on the new lock.\\n\\nthe existing dependency chain (in reverse order) is:\\n\\n-\u003e #1 (pcp_batch_high_lock){+.+.}-{3:3}:\\n       __mutex_lock+0x6c/0x770\\n       page_alloc_cpu_online+0x3c/0x70\\n       cpuhp_invoke_callback+0x397/0x5f0\\n       __cpuhp_invoke_callback_range+0x71/0xe0\\n       _cpu_up+0xeb/0x210\\n       cpu_up+0x91/0xe0\\n       cpuhp_bringup_mask+0x49/0xb0\\n       bringup_nonboot_cpus+0xb7/0xe0\\n       smp_init+0x25/0xa0\\n       kernel_init_freeable+0x15f/0x3e0\\n       kernel_init+0x15/0x1b0\\n       ret_from_fork+0x2f/0x50\\n       ret_from_fork_asm+0x1a/0x30\\n\\n-\u003e #0 (cpu_hotplug_lock){++++}-{0:0}:\\n       __lock_acquire+0x1298/0x1cd0\\n       lock_acquire+0xc0/0x2b0\\n       cpus_read_lock+0x2a/0xc0\\n       static_key_slow_dec+0x16/0x60\\n       __hugetlb_vmemmap_restore_folio+0x1b9/0x200\\n       dissolve_free_huge_page+0x211/0x260\\n       __page_handle_poison+0x45/0xc0\\n       memory_failure+0x65e/0xc70\\n       hard_offline_page_store+0x55/0xa0\\n       kernfs_fop_write_iter+0x12c/0x1d0\\n       vfs_write+0x387/0x550\\n       ksys_write+0x64/0xe0\\n       do_syscall_64+0xca/0x1e0\\n       entry_SYSCALL_64_after_hwframe+0x6d/0x75\\n\\nother info that might help us debug this:\\n\\n Possible unsafe locking scenario:\\n\\n       CPU0                    CPU1\\n       ----                    ----\\n  lock(pcp_batch_high_lock);\\n                               lock(cpu_hotplug_lock);\\n                               lock(pcp_batch_high_lock);\\n  rlock(cpu_hotplug_lock);\\n\\n *** DEADLOCK ***\\n\\n5 locks held by bash/46904:\\n #0: ffff98f6c3bb23f0 (sb_writers#5){.+.+}-{0:0}, at: ksys_write+0x64/0xe0\\n #1: ffff98f6c328e488 (\u0026of-\u003emutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0xf8/0x1d0\\n #2: ffff98ef83b31890 (kn-\u003eactive#113){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x100/0x1d0\\n #3: ffffffffabf9db48 (mf_mutex){+.+.}-{3:3}, at: memory_failure+0x44/0xc70\\n #4: ffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3:3}, at: zone_pcp_disable+0x16/0x40\\n\\nstack backtrace:\\nCPU: 10 PID: 46904 Comm: bash Kdump: loaded Not tainted 6.8.0-11409-gf6cef5f8c37f #1\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\\nCall Trace:\\n \u003cTASK\u003e\\n dump_stack_lvl+0x68/0xa0\\n check_noncircular+0x129/0x140\\n __lock_acquire+0x1298/0x1cd0\\n lock_acquire+0xc0/0x2b0\\n cpus_read_lock+0x2a/0xc0\\n static_key_slow_dec+0x16/0x60\\n __hugetlb_vmemmap_restore_folio+0x1b9/0x200\\n dissolve_free_huge_page+0x211/0x260\\n __page_handle_poison+0x45/0xc0\\n memory_failure+0x65e/0xc70\\n hard_offline_page_store+0x55/0xa0\\n kernfs_fop_write_iter+0x12c/0x1d0\\n vfs_write+0x387/0x550\\n ksys_write+0x64/0xe0\\n do_syscall_64+0xca/0x1e0\\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\\nRIP: 0033:0x7fc862314887\\nCode: 10 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24\\nRSP: 002b:00007fff19311268 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\\nRAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007fc862314887\\nRDX: 000000000000000c RSI: 000056405645fe10 RDI: 0000000000000001\\nRBP: 000056405645fe10 R08: 00007fc8623d1460 R09: 000000007fffffff\\nR10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c\\nR13: 00007fc86241b780 R14: 00007fc862417600 R15: 00007fc862416a00\\n\\nIn short, below scene breaks the \\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mm/memory-failure: corrige el interbloqueo cuando Hugetlb_optimize_vmemmap est\u00e1 habilitado Cuando hice una prueba dura sin conexi\u00f3n con p\u00e1ginas de Hugetlb, se produce el siguiente interbloqueo: ============ ========================================== ADVERTENCIA: posible dependencia de bloqueo circular detectada 6.8 .0-11409-gf6cef5f8c37f #1 No contaminado ---------------------------------------- -------------- bash/46904 est\u00e1 intentando adquirir el bloqueo: ffffffffabe68910 (cpu_hotplug_lock){++++}-{0:0}, en: static_key_slow_dec+0x16/0x60 pero la tarea est\u00e1 ya mantiene el bloqueo: ffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3:3}, en: zone_pcp_disable+0x16/0x40 cuyo bloqueo ya depende del nuevo bloqueo. la cadena de dependencia existente (en orden inverso) es: -\u0026gt; #1 (pcp_batch_high_lock){+.+.}-{3:3}: __mutex_lock+0x6c/0x770 page_alloc_cpu_online+0x3c/0x70 cpuhp_invoke_callback+0x397/0x5f0 __cpuhp_invoke_callback_range+0x71/ 0xe0 _cpu_up+0xeb/0x210 cpu_up+0x91/0xe0 cpuhp_bringup_mask+0x49/0xb0 Bringup_nonboot_cpus+0xb7/0xe0 smp_init+0x25/0xa0 kernel_init_freeable+0x15f/0x3e0 kernel_init+0x15/0x1b0 t_from_fork+0x2f/0x50 ret_from_fork_asm+0x1a/0x30 -\u0026gt; #0 (cpu_hotplug_lock){++++}-{0:0}: __lock_acquire+0x1298/0x1cd0 lock_acquire+0xc0/0x2b0 cpus_read_lock+0x2a/0xc0 static_key_slow_dec+0x16/0x60 __hugetlb_vmemmap_restore_folio+0x1b9/0x200 dissolve_free_huge _p\u00e1gina+0x211/0x260 __p\u00e1gina_handle_poison+0x45/ 0xc0 error_de_memoria+0x65e/0xc70 hard_offline_page_store+0x55/0xa0 kernfs_fop_write_iter+0x12c/0x1d0 vfs_write+0x387/0x550 ksys_write+0x64/0xe0 do_syscall_64+0xca/0x1e0 entrada_SYSCALL_6 4_after_hwframe+0x6d/0x75 otra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto: Posible escenario de bloqueo inseguro: CPU0 CPU1 ---- ---- bloqueo(pcp_batch_high_lock); bloquear(cpu_hotplug_lock); bloquear(pcp_batch_high_lock); rlock(cpu_hotplug_lock); *** DEADLOCK *** 5 bloqueos retenidos por bash/46904: #0: ffff98f6c3bb23f0 (sb_writers#5){.+.+}-{0:0}, en: ksys_write+0x64/0xe0 #1: ffff98f6c328e488 (\u0026amp;of -\u0026gt;mutex){+.+.}-{3:3}, en: kernfs_fop_write_iter+0xf8/0x1d0 #2: ffff98ef83b31890 (kn-\u0026gt;active#113){.+.+}-{0:0}, en : kernfs_fop_write_iter+0x100/0x1d0 #3: ffffffffabf9db48 (mf_mutex){+.+.}-{3:3}, en: Memory_failure+0x44/0xc70 #4: ffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3: 3}, en: zone_pcp_disable+0x16/0x40 seguimiento de pila: CPU: 10 PID: 46904 Comm: bash Kdump: cargado No contaminado 6.8.0-11409-gf6cef5f8c37f #1 Nombre de hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 01/04/2014 Seguimiento de llamadas:  dump_stack_lvl+0x68/0xa0 check_noncircular+0x129/0x140 __lock_acquire+0x1298/0x1cd0 lock_acquire+0xc0/0x2b0 cpus _read_lock+0x2a /0xc0 static_key_slow_dec+0x16/0x60 __hugetlb_vmemmap_restore_folio+0x1b9/0x200 dissolve_free_huge_page+0x211/0x260 __page_handle_poison+0x45/0xc0 Memory_failure+0x65e/0xc70 hard_offline_page_store+0x55/0 xa0 kernfs_fop_write_iter+0x12c/0x1d0 vfs_write+0x387/0x550 ksys_write+0x64/0xe0 do_syscall_64+0xca /0x1e0 Entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fc862314887 C\u00f3digo: 10 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 \u0026lt;48\u0026gt; 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 RSP: 002b:00007fff19311268 EFLAGS: 00000246 : 0000000000000001 RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007fc862314887 RDX: 000000000000000c RSI: 000056405645fe10 RDI: 0000000000000001 RBP: 000056405645fe10 R08: 00007fc8623d1460 R09: 000000007ffffff R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c R13: 00007fc86241b780 R14: 00007fc862417600 R15: 00007fc862416a00 En resumen, La siguiente escena rompe el ---truncado---\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.18\",\"versionEndExcluding\":\"6.1.88\",\"matchCriteriaId\":\"B8A22524-9F14-4E3F-8B0D-E2A689BE7F8A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.29\",\"matchCriteriaId\":\"0999E154-1E68-41FA-8DE3-9A735E382224\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.8.8\",\"matchCriteriaId\":\"673B3328-389D-41A4-9617-669298635262\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"22BEDD49-2C6D-402D-9DBF-6646F6ECD10B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"52048DDA-FC5A-4363-95A0-A6357B4D7F8C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"A06B2CCF-3F43-4FA9-8773-C83C3F5764B2\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CC559B26-5DFC-4B7A-A27C-B77DE755DFF9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8EDB836-4E6A-4B71-B9B2-AA3E03E0F646\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CA277A6C-83EC-4536-9125-97B84C4FAF59\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1983184c22dd84a4d95a71e5c6775c2638557dc7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/49955b24002dc16a0ae2e83a57a2a6c863a1845c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5ef7ba2799a3b5ed292b8f6407376e2c25ef002e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/882e1180c83f5b75bae03d0ccc31ccedfe5159de\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1983184c22dd84a4d95a71e5c6775c2638557dc7\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/49955b24002dc16a0ae2e83a57a2a6c863a1845c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5ef7ba2799a3b5ed292b8f6407376e2c25ef002e\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/882e1180c83f5b75bae03d0ccc31ccedfe5159de\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5ef7ba2799a3b5ed292b8f6407376e2c25ef002e\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/882e1180c83f5b75bae03d0ccc31ccedfe5159de\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/49955b24002dc16a0ae2e83a57a2a6c863a1845c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/1983184c22dd84a4d95a71e5c6775c2638557dc7\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/\"}, {\"url\": 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\"version\": \"5.18\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.18\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.88\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.29\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"mm/memory-failure.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5ef7ba2799a3b5ed292b8f6407376e2c25ef002e\"}, {\"url\": \"https://git.kernel.org/stable/c/882e1180c83f5b75bae03d0ccc31ccedfe5159de\"}, {\"url\": \"https://git.kernel.org/stable/c/49955b24002dc16a0ae2e83a57a2a6c863a1845c\"}, {\"url\": \"https://git.kernel.org/stable/c/1983184c22dd84a4d95a71e5c6775c2638557dc7\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/memory-failure: fix deadlock when hugetlb_optimize_vmemmap is enabled\\n\\nWhen I did hard offline test with hugetlb pages, below deadlock occurs:\\n\\n======================================================\\nWARNING: possible circular locking dependency detected\\n6.8.0-11409-gf6cef5f8c37f #1 Not tainted\\n------------------------------------------------------\\nbash/46904 is trying to acquire lock:\\nffffffffabe68910 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_slow_dec+0x16/0x60\\n\\nbut task is already holding lock:\\nffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3:3}, at: zone_pcp_disable+0x16/0x40\\n\\nwhich lock already depends on the new lock.\\n\\nthe existing dependency chain (in reverse order) is:\\n\\n-\u003e #1 (pcp_batch_high_lock){+.+.}-{3:3}:\\n       __mutex_lock+0x6c/0x770\\n       page_alloc_cpu_online+0x3c/0x70\\n       cpuhp_invoke_callback+0x397/0x5f0\\n       __cpuhp_invoke_callback_range+0x71/0xe0\\n       _cpu_up+0xeb/0x210\\n       cpu_up+0x91/0xe0\\n       cpuhp_bringup_mask+0x49/0xb0\\n       bringup_nonboot_cpus+0xb7/0xe0\\n       smp_init+0x25/0xa0\\n       kernel_init_freeable+0x15f/0x3e0\\n       kernel_init+0x15/0x1b0\\n       ret_from_fork+0x2f/0x50\\n       ret_from_fork_asm+0x1a/0x30\\n\\n-\u003e #0 (cpu_hotplug_lock){++++}-{0:0}:\\n       __lock_acquire+0x1298/0x1cd0\\n       lock_acquire+0xc0/0x2b0\\n       cpus_read_lock+0x2a/0xc0\\n       static_key_slow_dec+0x16/0x60\\n       __hugetlb_vmemmap_restore_folio+0x1b9/0x200\\n       dissolve_free_huge_page+0x211/0x260\\n       __page_handle_poison+0x45/0xc0\\n       memory_failure+0x65e/0xc70\\n       hard_offline_page_store+0x55/0xa0\\n       kernfs_fop_write_iter+0x12c/0x1d0\\n       vfs_write+0x387/0x550\\n       ksys_write+0x64/0xe0\\n       do_syscall_64+0xca/0x1e0\\n       entry_SYSCALL_64_after_hwframe+0x6d/0x75\\n\\nother info that might help us debug this:\\n\\n Possible unsafe locking scenario:\\n\\n       CPU0                    CPU1\\n       ----                    ----\\n  lock(pcp_batch_high_lock);\\n                               lock(cpu_hotplug_lock);\\n                               lock(pcp_batch_high_lock);\\n  rlock(cpu_hotplug_lock);\\n\\n *** DEADLOCK ***\\n\\n5 locks held by bash/46904:\\n #0: ffff98f6c3bb23f0 (sb_writers#5){.+.+}-{0:0}, at: ksys_write+0x64/0xe0\\n #1: ffff98f6c328e488 (\u0026of-\u003emutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0xf8/0x1d0\\n #2: ffff98ef83b31890 (kn-\u003eactive#113){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x100/0x1d0\\n #3: ffffffffabf9db48 (mf_mutex){+.+.}-{3:3}, at: memory_failure+0x44/0xc70\\n #4: ffffffffabf92ea8 (pcp_batch_high_lock){+.+.}-{3:3}, at: zone_pcp_disable+0x16/0x40\\n\\nstack backtrace:\\nCPU: 10 PID: 46904 Comm: bash Kdump: loaded Not tainted 6.8.0-11409-gf6cef5f8c37f #1\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\\nCall Trace:\\n \u003cTASK\u003e\\n dump_stack_lvl+0x68/0xa0\\n check_noncircular+0x129/0x140\\n __lock_acquire+0x1298/0x1cd0\\n lock_acquire+0xc0/0x2b0\\n cpus_read_lock+0x2a/0xc0\\n static_key_slow_dec+0x16/0x60\\n __hugetlb_vmemmap_restore_folio+0x1b9/0x200\\n dissolve_free_huge_page+0x211/0x260\\n __page_handle_poison+0x45/0xc0\\n memory_failure+0x65e/0xc70\\n hard_offline_page_store+0x55/0xa0\\n kernfs_fop_write_iter+0x12c/0x1d0\\n vfs_write+0x387/0x550\\n ksys_write+0x64/0xe0\\n do_syscall_64+0xca/0x1e0\\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\\nRIP: 0033:0x7fc862314887\\nCode: 10 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24\\nRSP: 002b:00007fff19311268 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\\nRAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007fc862314887\\nRDX: 000000000000000c RSI: 000056405645fe10 RDI: 0000000000000001\\nRBP: 000056405645fe10 R08: 00007fc8623d1460 R09: 000000007fffffff\\nR10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c\\nR13: 00007fc86241b780 R14: 00007fc862417600 R15: 00007fc862416a00\\n\\nIn short, below scene breaks the \\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.88\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.29\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.8\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"5.18\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:01:32.990Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26987\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-04T17:15:23.408Z\", \"dateReserved\": \"2024-02-19T14:20:24.205Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-01T05:27:34.523Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.