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CVE-2023-52516 (GCVE-0-2023-52516)

Vulnerability from cvelistv5 – Published: 2024-03-02 21:52 – Updated: 2026-05-11 19:28
VLAI
Title
dma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock
Summary
In the Linux kernel, the following vulnerability has been resolved: dma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock __dma_entry_alloc_check_leak() calls into printk -> serial console output (qcom geni) and grabs port->lock under free_entries_lock spin lock, which is a reverse locking dependency chain as qcom_geni IRQ handler can call into dma-debug code and grab free_entries_lock under port->lock. Move __dma_entry_alloc_check_leak() call out of free_entries_lock scope so that we don't acquire serial console's port->lock under it. Trimmed-down lockdep splat: The existing dependency chain (in reverse order) is: -> #2 (free_entries_lock){-.-.}-{2:2}: _raw_spin_lock_irqsave+0x60/0x80 dma_entry_alloc+0x38/0x110 debug_dma_map_page+0x60/0xf8 dma_map_page_attrs+0x1e0/0x230 dma_map_single_attrs.constprop.0+0x6c/0xc8 geni_se_rx_dma_prep+0x40/0xcc qcom_geni_serial_isr+0x310/0x510 __handle_irq_event_percpu+0x110/0x244 handle_irq_event_percpu+0x20/0x54 handle_irq_event+0x50/0x88 handle_fasteoi_irq+0xa4/0xcc handle_irq_desc+0x28/0x40 generic_handle_domain_irq+0x24/0x30 gic_handle_irq+0xc4/0x148 do_interrupt_handler+0xa4/0xb0 el1_interrupt+0x34/0x64 el1h_64_irq_handler+0x18/0x24 el1h_64_irq+0x64/0x68 arch_local_irq_enable+0x4/0x8 ____do_softirq+0x18/0x24 ... -> #1 (&port_lock_key){-.-.}-{2:2}: _raw_spin_lock_irqsave+0x60/0x80 qcom_geni_serial_console_write+0x184/0x1dc console_flush_all+0x344/0x454 console_unlock+0x94/0xf0 vprintk_emit+0x238/0x24c vprintk_default+0x3c/0x48 vprintk+0xb4/0xbc _printk+0x68/0x90 register_console+0x230/0x38c uart_add_one_port+0x338/0x494 qcom_geni_serial_probe+0x390/0x424 platform_probe+0x70/0xc0 really_probe+0x148/0x280 __driver_probe_device+0xfc/0x114 driver_probe_device+0x44/0x100 __device_attach_driver+0x64/0xdc bus_for_each_drv+0xb0/0xd8 __device_attach+0xe4/0x140 device_initial_probe+0x1c/0x28 bus_probe_device+0x44/0xb0 device_add+0x538/0x668 of_device_add+0x44/0x50 of_platform_device_create_pdata+0x94/0xc8 of_platform_bus_create+0x270/0x304 of_platform_populate+0xac/0xc4 devm_of_platform_populate+0x60/0xac geni_se_probe+0x154/0x160 platform_probe+0x70/0xc0 ... -> #0 (console_owner){-...}-{0:0}: __lock_acquire+0xdf8/0x109c lock_acquire+0x234/0x284 console_flush_all+0x330/0x454 console_unlock+0x94/0xf0 vprintk_emit+0x238/0x24c vprintk_default+0x3c/0x48 vprintk+0xb4/0xbc _printk+0x68/0x90 dma_entry_alloc+0xb4/0x110 debug_dma_map_sg+0xdc/0x2f8 __dma_map_sg_attrs+0xac/0xe4 dma_map_sgtable+0x30/0x4c get_pages+0x1d4/0x1e4 [msm] msm_gem_pin_pages_locked+0x38/0xac [msm] msm_gem_pin_vma_locked+0x58/0x88 [msm] msm_ioctl_gem_submit+0xde4/0x13ac [msm] drm_ioctl_kernel+0xe0/0x15c drm_ioctl+0x2e8/0x3f4 vfs_ioctl+0x30/0x50 ... Chain exists of: console_owner --> &port_lock_key --> free_entries_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(free_entries_lock); lock(&port_lock_key); lock(free_entries_lock); lock(console_owner); *** DEADLOCK *** Call trace: dump_backtrace+0xb4/0xf0 show_stack+0x20/0x30 dump_stack_lvl+0x60/0x84 dump_stack+0x18/0x24 print_circular_bug+0x1cc/0x234 check_noncircular+0x78/0xac __lock_acquire+0xdf8/0x109c lock_acquire+0x234/0x284 console_flush_all+0x330/0x454 consol ---truncated---
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-07 20:06 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08 , < c79300599923daaa30f417c75555d5566b3d31ae (git)
Affected: ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08 , < ac0d068099349cbca3d93f2e3b15bb329364b08c (git)
Affected: ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08 , < be8f49029eca3efbad0d74dbff3cb9129994ffab (git)
Affected: ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08 , < fe2b811a02c3244ebf6059039e4a9e715e26a9e3 (git)
Affected: ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08 , < fb5a4315591dae307a65fc246ca80b5159d296e1 (git)
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Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.10.198 , ≤ 5.10.* (semver)
Unaffected: 5.15.134 , ≤ 5.15.* (semver)
Unaffected: 6.1.56 , ≤ 6.1.* (semver)
Unaffected: 6.5.6 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-debug: don\u0027t call __dma_entry_alloc_check_leak() under free_entries_lock\n\n__dma_entry_alloc_check_leak() calls into printk -\u003e serial console\noutput (qcom geni) and grabs port-\u003elock under free_entries_lock\nspin lock, which is a reverse locking dependency chain as qcom_geni\nIRQ handler can call into dma-debug code and grab free_entries_lock\nunder port-\u003elock.\n\nMove __dma_entry_alloc_check_leak() call out of free_entries_lock\nscope so that we don\u0027t acquire serial console\u0027s port-\u003elock under it.\n\nTrimmed-down lockdep splat:\n\n The existing dependency chain (in reverse order) is:\n\n               -\u003e #2 (free_entries_lock){-.-.}-{2:2}:\n        _raw_spin_lock_irqsave+0x60/0x80\n        dma_entry_alloc+0x38/0x110\n        debug_dma_map_page+0x60/0xf8\n        dma_map_page_attrs+0x1e0/0x230\n        dma_map_single_attrs.constprop.0+0x6c/0xc8\n        geni_se_rx_dma_prep+0x40/0xcc\n        qcom_geni_serial_isr+0x310/0x510\n        __handle_irq_event_percpu+0x110/0x244\n        handle_irq_event_percpu+0x20/0x54\n        handle_irq_event+0x50/0x88\n        handle_fasteoi_irq+0xa4/0xcc\n        handle_irq_desc+0x28/0x40\n        generic_handle_domain_irq+0x24/0x30\n        gic_handle_irq+0xc4/0x148\n        do_interrupt_handler+0xa4/0xb0\n        el1_interrupt+0x34/0x64\n        el1h_64_irq_handler+0x18/0x24\n        el1h_64_irq+0x64/0x68\n        arch_local_irq_enable+0x4/0x8\n        ____do_softirq+0x18/0x24\n        ...\n\n               -\u003e #1 (\u0026port_lock_key){-.-.}-{2:2}:\n        _raw_spin_lock_irqsave+0x60/0x80\n        qcom_geni_serial_console_write+0x184/0x1dc\n        console_flush_all+0x344/0x454\n        console_unlock+0x94/0xf0\n        vprintk_emit+0x238/0x24c\n        vprintk_default+0x3c/0x48\n        vprintk+0xb4/0xbc\n        _printk+0x68/0x90\n        register_console+0x230/0x38c\n        uart_add_one_port+0x338/0x494\n        qcom_geni_serial_probe+0x390/0x424\n        platform_probe+0x70/0xc0\n        really_probe+0x148/0x280\n        __driver_probe_device+0xfc/0x114\n        driver_probe_device+0x44/0x100\n        __device_attach_driver+0x64/0xdc\n        bus_for_each_drv+0xb0/0xd8\n        __device_attach+0xe4/0x140\n        device_initial_probe+0x1c/0x28\n        bus_probe_device+0x44/0xb0\n        device_add+0x538/0x668\n        of_device_add+0x44/0x50\n        of_platform_device_create_pdata+0x94/0xc8\n        of_platform_bus_create+0x270/0x304\n        of_platform_populate+0xac/0xc4\n        devm_of_platform_populate+0x60/0xac\n        geni_se_probe+0x154/0x160\n        platform_probe+0x70/0xc0\n        ...\n\n               -\u003e #0 (console_owner){-...}-{0:0}:\n        __lock_acquire+0xdf8/0x109c\n        lock_acquire+0x234/0x284\n        console_flush_all+0x330/0x454\n        console_unlock+0x94/0xf0\n        vprintk_emit+0x238/0x24c\n        vprintk_default+0x3c/0x48\n        vprintk+0xb4/0xbc\n        _printk+0x68/0x90\n        dma_entry_alloc+0xb4/0x110\n        debug_dma_map_sg+0xdc/0x2f8\n        __dma_map_sg_attrs+0xac/0xe4\n        dma_map_sgtable+0x30/0x4c\n        get_pages+0x1d4/0x1e4 [msm]\n        msm_gem_pin_pages_locked+0x38/0xac [msm]\n        msm_gem_pin_vma_locked+0x58/0x88 [msm]\n        msm_ioctl_gem_submit+0xde4/0x13ac [msm]\n        drm_ioctl_kernel+0xe0/0x15c\n        drm_ioctl+0x2e8/0x3f4\n        vfs_ioctl+0x30/0x50\n        ...\n\n Chain exists of:\n   console_owner --\u003e \u0026port_lock_key --\u003e free_entries_lock\n\n  Possible unsafe locking scenario:\n\n        CPU0                    CPU1\n        ----                    ----\n   lock(free_entries_lock);\n                                lock(\u0026port_lock_key);\n                                lock(free_entries_lock);\n   lock(console_owner);\n\n                *** DEADLOCK ***\n\n Call trace:\n  dump_backtrace+0xb4/0xf0\n  show_stack+0x20/0x30\n  dump_stack_lvl+0x60/0x84\n  dump_stack+0x18/0x24\n  print_circular_bug+0x1cc/0x234\n  check_noncircular+0x78/0xac\n  __lock_acquire+0xdf8/0x109c\n  lock_acquire+0x234/0x284\n  console_flush_all+0x330/0x454\n  consol\n---truncated---"
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    "datePublished": "2024-03-02T21:52:26.517Z",
    "dateReserved": "2024-02-20T12:30:33.316Z",
    "dateUpdated": "2026-05-11T19:28:48.775Z",
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      "date": "2026-09-17",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52516\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-02T22:15:47.870\",\"lastModified\":\"2026-06-17T06:42:54.713\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndma-debug: don\u0027t call __dma_entry_alloc_check_leak() under free_entries_lock\\n\\n__dma_entry_alloc_check_leak() calls into printk -\u003e serial console\\noutput (qcom geni) and grabs port-\u003elock under free_entries_lock\\nspin lock, which is a reverse locking dependency chain as qcom_geni\\nIRQ handler can call into dma-debug code and grab free_entries_lock\\nunder port-\u003elock.\\n\\nMove __dma_entry_alloc_check_leak() call out of free_entries_lock\\nscope so that we don\u0027t acquire serial console\u0027s port-\u003elock under it.\\n\\nTrimmed-down lockdep splat:\\n\\n The existing dependency chain (in reverse order) is:\\n\\n               -\u003e #2 (free_entries_lock){-.-.}-{2:2}:\\n        _raw_spin_lock_irqsave+0x60/0x80\\n        dma_entry_alloc+0x38/0x110\\n        debug_dma_map_page+0x60/0xf8\\n        dma_map_page_attrs+0x1e0/0x230\\n        dma_map_single_attrs.constprop.0+0x6c/0xc8\\n        geni_se_rx_dma_prep+0x40/0xcc\\n        qcom_geni_serial_isr+0x310/0x510\\n        __handle_irq_event_percpu+0x110/0x244\\n        handle_irq_event_percpu+0x20/0x54\\n        handle_irq_event+0x50/0x88\\n        handle_fasteoi_irq+0xa4/0xcc\\n        handle_irq_desc+0x28/0x40\\n        generic_handle_domain_irq+0x24/0x30\\n        gic_handle_irq+0xc4/0x148\\n        do_interrupt_handler+0xa4/0xb0\\n        el1_interrupt+0x34/0x64\\n        el1h_64_irq_handler+0x18/0x24\\n        el1h_64_irq+0x64/0x68\\n        arch_local_irq_enable+0x4/0x8\\n        ____do_softirq+0x18/0x24\\n        ...\\n\\n               -\u003e #1 (\u0026port_lock_key){-.-.}-{2:2}:\\n        _raw_spin_lock_irqsave+0x60/0x80\\n        qcom_geni_serial_console_write+0x184/0x1dc\\n        console_flush_all+0x344/0x454\\n        console_unlock+0x94/0xf0\\n        vprintk_emit+0x238/0x24c\\n        vprintk_default+0x3c/0x48\\n        vprintk+0xb4/0xbc\\n        _printk+0x68/0x90\\n        register_console+0x230/0x38c\\n        uart_add_one_port+0x338/0x494\\n        qcom_geni_serial_probe+0x390/0x424\\n        platform_probe+0x70/0xc0\\n        really_probe+0x148/0x280\\n        __driver_probe_device+0xfc/0x114\\n        driver_probe_device+0x44/0x100\\n        __device_attach_driver+0x64/0xdc\\n        bus_for_each_drv+0xb0/0xd8\\n        __device_attach+0xe4/0x140\\n        device_initial_probe+0x1c/0x28\\n        bus_probe_device+0x44/0xb0\\n        device_add+0x538/0x668\\n        of_device_add+0x44/0x50\\n        of_platform_device_create_pdata+0x94/0xc8\\n        of_platform_bus_create+0x270/0x304\\n        of_platform_populate+0xac/0xc4\\n        devm_of_platform_populate+0x60/0xac\\n        geni_se_probe+0x154/0x160\\n        platform_probe+0x70/0xc0\\n        ...\\n\\n               -\u003e #0 (console_owner){-...}-{0:0}:\\n        __lock_acquire+0xdf8/0x109c\\n        lock_acquire+0x234/0x284\\n        console_flush_all+0x330/0x454\\n        console_unlock+0x94/0xf0\\n        vprintk_emit+0x238/0x24c\\n        vprintk_default+0x3c/0x48\\n        vprintk+0xb4/0xbc\\n        _printk+0x68/0x90\\n        dma_entry_alloc+0xb4/0x110\\n        debug_dma_map_sg+0xdc/0x2f8\\n        __dma_map_sg_attrs+0xac/0xe4\\n        dma_map_sgtable+0x30/0x4c\\n        get_pages+0x1d4/0x1e4 [msm]\\n        msm_gem_pin_pages_locked+0x38/0xac [msm]\\n        msm_gem_pin_vma_locked+0x58/0x88 [msm]\\n        msm_ioctl_gem_submit+0xde4/0x13ac [msm]\\n        drm_ioctl_kernel+0xe0/0x15c\\n        drm_ioctl+0x2e8/0x3f4\\n        vfs_ioctl+0x30/0x50\\n        ...\\n\\n Chain exists of:\\n   console_owner --\u003e \u0026port_lock_key --\u003e free_entries_lock\\n\\n  Possible unsafe locking scenario:\\n\\n        CPU0                    CPU1\\n        ----                    ----\\n   lock(free_entries_lock);\\n                                lock(\u0026port_lock_key);\\n                                lock(free_entries_lock);\\n   lock(console_owner);\\n\\n                *** DEADLOCK ***\\n\\n Call trace:\\n  dump_backtrace+0xb4/0xf0\\n  show_stack+0x20/0x30\\n  dump_stack_lvl+0x60/0x84\\n  dump_stack+0x18/0x24\\n  print_circular_bug+0x1cc/0x234\\n  check_noncircular+0x78/0xac\\n  __lock_acquire+0xdf8/0x109c\\n  lock_acquire+0x234/0x284\\n  console_flush_all+0x330/0x454\\n  consol\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dma-debug: no llame a __dma_entry_alloc_check_leak() bajo free_entries_lock __dma_entry_alloc_check_leak() llama a printk -\u0026gt; salida de consola serie (qcom geni) y toma puerto-\u0026gt;bloqueo bajo free_entries_lock spin lock , que es una cadena de dependencia de bloqueo inverso, ya que el controlador IRQ qcom_geni puede llamar al c\u00f3digo dma-debug y capturar free_entries_lock en port-\u0026gt;lock. Mueva la llamada __dma_entry_alloc_check_leak() fuera del alcance de free_entries_lock para que no adquiramos el puerto serie de la consola-\u0026gt;bloqueo debajo de ella. S\u00edmbolo de bloqueo recortado: la cadena de dependencia existente (en orden inverso) es: -\u0026gt; #2 (free_entries_lock){-.-.}-{2:2}: _raw_spin_lock_irqsave+0x60/0x80 dma_entry_alloc+0x38/0x110 debug_dma_map_page+0x60 /0xf8 dma_map_page_attrs+0x1e0/0x230 dma_map_single_attrs.constprop.0+0x6c/0xc8 geni_se_rx_dma_prep+0x40/0xcc qcom_geni_serial_isr+0x310/0x510 __handle_irq_event_percpu+0x110/0x24 4 handle_irq_event_percpu+0x20/0x54 handle_irq_event+0x50/0x88 handle_fasteoi_irq+0xa4/0xcc handle_irq_desc+0x28/ 0x40 generic_handle_domain_irq+0x24/0x30 gic_handle_irq+0xc4/0x148 do_interrupt_handler+0xa4/0xb0 el1_interrupt+0x34/0x64 el1h_64_irq_handler+0x18/0x24 el1h_64_irq+0x64/0x68 arch_local_irq_en capaz+0x4/0x8 ____do_softirq+0x18/0x24 ... -\u0026gt; #1 (\u0026amp;port_lock_key ){-.-.}-{2:2}: _raw_spin_lock_irqsave+0x60/0x80 qcom_geni_serial_console_write+0x184/0x1dc console_flush_all+0x344/0x454 console_unlock+0x94/0xf0 vprintk_emit+0x238/0x24c vprintk_default+0x3c/ 0x48 vprintk+0xb4/0xbc _printk +0x68/0x90 Register_console+0x230/0x38c uart_add_one_port+0x338/0x494 qcom_geni_serial_probe+0x390/0x424 platform_probe+0x70/0xc0 very_probe+0x148/0x280 __driver_probe_device+0xfc/0x114 driver_probe _device+0x44/0x100 __device_attach_driver+0x64/0xdc bus_for_each_drv+0xb0/0xd8 __device_attach +0xe4/0x140 sonda_inicial_dispositivo+0x1c/0x28 sonda_bus_dispositivo+0x44/0xb0 dispositivo_add+0x538/0x668 of_device_add+0x44/0x50 of_platform_device_create_pdata+0x94/0xc8 of_platform_bus_create+0x270/0x304 of_ plataforma_populate+0xac/0xc4 devm_of_platform_populate+0x60/0xac geni_se_probe+0x154/0x160 plataforma_probe +0x70/0xc0... -\u0026gt; #0 (propietario_consola){-...}-{0:0}: __lock_acquire+0xdf8/0x109c lock_acquire+0x234/0x284 console_flush_all+0x330/0x454 console_unlock+0x94/0xf0 vprintk_emit+0x238 /0x24c vprintk_default+0x3c/0x48 vprintk+0xb4/0xbc _printk+0x68/0x90 dma_entry_alloc+0xb4/0x110 debug_dma_map_sg+0xdc/0x2f8 __dma_map_sg_attrs+0xac/0xe4 dma_map_sgtable+0x30/ 0x4c get_pages+0x1d4/0x1e4 [msm] msm_gem_pin_pages_locked+0x38/0xac [msm] msm_gem_pin_vma_locked+0x58/0x88 [msm] msm_ioctl_gem_submit+0xde4/0x13ac [msm] drm_ioctl_kernel+0xe0/0x15c drm_ioctl+0x2e8/0x3f4 vfs_ioctl+0x30/0x50 ... Existe cadena de: console_owner --\u0026gt; \u0026amp;port_lock_key --\u0026gt; free_entries_lock Posible escenario de bloqueo inseguro: CPU0 CPU1 ---- ---- lock(free_entries_lock); bloquear(\u0026amp;port_lock_key); bloquear(free_entries_lock); bloquear (propietario_consola); *** DEADLOCK *** Rastreo de llamadas: dump_backtrace+0xb4/0xf0 show_stack+0x20/0x30 dump_stack_lvl+0x60/0x84 dump_stack+0x18/0x24 print_circular_bug+0x1cc/0x234 check_noncircular+0x78/0xac __lock_acquire+0xdf8/0x109c lock_ac solicitar+0x234/0x284 console_flush_all+0x330/0x454 consol ---truncado---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"kernel/dma/debug.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08\",\"lessThan\":\"c79300599923daaa30f417c75555d5566b3d31ae\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08\",\"lessThan\":\"ac0d068099349cbca3d93f2e3b15bb329364b08c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08\",\"lessThan\":\"be8f49029eca3efbad0d74dbff3cb9129994ffab\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08\",\"lessThan\":\"fe2b811a02c3244ebf6059039e4a9e715e26a9e3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08\",\"lessThan\":\"fb5a4315591dae307a65fc246ca80b5159d296e1\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"kernel/dma/debug.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.0\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.0\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.198\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.134\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.56\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.5.6\",\"lessThanOrEqual\":\"6.5.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-03-07T20:06:45.546662Z\",\"id\":\"CVE-2023-52516\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:16:02+00:00",
      "cve": "CVE-2023-52516",
      "id": "CVE-2023-52516",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "156",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: dma-debug: don\u0027t call __dma_entry_alloc_check_leak() under free_entries_lock",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52516.json",
      "version": "3"
    },
    "vulnrichment": {
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\"unaffected\", \"version\": \"5.15.134\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.56\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.5.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.5.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/dma/debug.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/c79300599923daaa30f417c75555d5566b3d31ae\"}, {\"url\": \"https://git.kernel.org/stable/c/ac0d068099349cbca3d93f2e3b15bb329364b08c\"}, {\"url\": \"https://git.kernel.org/stable/c/be8f49029eca3efbad0d74dbff3cb9129994ffab\"}, {\"url\": \"https://git.kernel.org/stable/c/fe2b811a02c3244ebf6059039e4a9e715e26a9e3\"}, {\"url\": \"https://git.kernel.org/stable/c/fb5a4315591dae307a65fc246ca80b5159d296e1\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndma-debug: don\u0027t call __dma_entry_alloc_check_leak() under free_entries_lock\\n\\n__dma_entry_alloc_check_leak() calls into printk -\u003e serial console\\noutput (qcom geni) and grabs port-\u003elock under free_entries_lock\\nspin lock, which is a reverse locking dependency chain as qcom_geni\\nIRQ handler can call into dma-debug code and grab free_entries_lock\\nunder port-\u003elock.\\n\\nMove __dma_entry_alloc_check_leak() call out of free_entries_lock\\nscope so that we don\u0027t acquire serial console\u0027s port-\u003elock under it.\\n\\nTrimmed-down lockdep splat:\\n\\n The existing dependency chain (in reverse order) is:\\n\\n               -\u003e #2 (free_entries_lock){-.-.}-{2:2}:\\n        _raw_spin_lock_irqsave+0x60/0x80\\n        dma_entry_alloc+0x38/0x110\\n        debug_dma_map_page+0x60/0xf8\\n        dma_map_page_attrs+0x1e0/0x230\\n        dma_map_single_attrs.constprop.0+0x6c/0xc8\\n        geni_se_rx_dma_prep+0x40/0xcc\\n        qcom_geni_serial_isr+0x310/0x510\\n        __handle_irq_event_percpu+0x110/0x244\\n        handle_irq_event_percpu+0x20/0x54\\n        handle_irq_event+0x50/0x88\\n        handle_fasteoi_irq+0xa4/0xcc\\n        handle_irq_desc+0x28/0x40\\n        generic_handle_domain_irq+0x24/0x30\\n        gic_handle_irq+0xc4/0x148\\n        do_interrupt_handler+0xa4/0xb0\\n        el1_interrupt+0x34/0x64\\n        el1h_64_irq_handler+0x18/0x24\\n        el1h_64_irq+0x64/0x68\\n        arch_local_irq_enable+0x4/0x8\\n        ____do_softirq+0x18/0x24\\n        ...\\n\\n               -\u003e #1 (\u0026port_lock_key){-.-.}-{2:2}:\\n        _raw_spin_lock_irqsave+0x60/0x80\\n        qcom_geni_serial_console_write+0x184/0x1dc\\n        console_flush_all+0x344/0x454\\n        console_unlock+0x94/0xf0\\n        vprintk_emit+0x238/0x24c\\n        vprintk_default+0x3c/0x48\\n        vprintk+0xb4/0xbc\\n        _printk+0x68/0x90\\n        register_console+0x230/0x38c\\n        uart_add_one_port+0x338/0x494\\n        qcom_geni_serial_probe+0x390/0x424\\n        platform_probe+0x70/0xc0\\n        really_probe+0x148/0x280\\n        __driver_probe_device+0xfc/0x114\\n        driver_probe_device+0x44/0x100\\n        __device_attach_driver+0x64/0xdc\\n        bus_for_each_drv+0xb0/0xd8\\n        __device_attach+0xe4/0x140\\n        device_initial_probe+0x1c/0x28\\n        bus_probe_device+0x44/0xb0\\n        device_add+0x538/0x668\\n        of_device_add+0x44/0x50\\n        of_platform_device_create_pdata+0x94/0xc8\\n        of_platform_bus_create+0x270/0x304\\n        of_platform_populate+0xac/0xc4\\n        devm_of_platform_populate+0x60/0xac\\n        geni_se_probe+0x154/0x160\\n        platform_probe+0x70/0xc0\\n        ...\\n\\n               -\u003e #0 (console_owner){-...}-{0:0}:\\n        __lock_acquire+0xdf8/0x109c\\n        lock_acquire+0x234/0x284\\n        console_flush_all+0x330/0x454\\n        console_unlock+0x94/0xf0\\n        vprintk_emit+0x238/0x24c\\n        vprintk_default+0x3c/0x48\\n        vprintk+0xb4/0xbc\\n        _printk+0x68/0x90\\n        dma_entry_alloc+0xb4/0x110\\n        debug_dma_map_sg+0xdc/0x2f8\\n        __dma_map_sg_attrs+0xac/0xe4\\n        dma_map_sgtable+0x30/0x4c\\n        get_pages+0x1d4/0x1e4 [msm]\\n        msm_gem_pin_pages_locked+0x38/0xac [msm]\\n        msm_gem_pin_vma_locked+0x58/0x88 [msm]\\n        msm_ioctl_gem_submit+0xde4/0x13ac [msm]\\n        drm_ioctl_kernel+0xe0/0x15c\\n        drm_ioctl+0x2e8/0x3f4\\n        vfs_ioctl+0x30/0x50\\n        ...\\n\\n Chain exists of:\\n   console_owner --\u003e \u0026port_lock_key --\u003e free_entries_lock\\n\\n  Possible unsafe locking scenario:\\n\\n        CPU0                    CPU1\\n        ----                    ----\\n   lock(free_entries_lock);\\n                                lock(\u0026port_lock_key);\\n                                lock(free_entries_lock);\\n   lock(console_owner);\\n\\n                *** DEADLOCK ***\\n\\n Call trace:\\n  dump_backtrace+0xb4/0xf0\\n  show_stack+0x20/0x30\\n  dump_stack_lvl+0x60/0x84\\n  dump_stack+0x18/0x24\\n  print_circular_bug+0x1cc/0x234\\n  check_noncircular+0x78/0xac\\n  __lock_acquire+0xdf8/0x109c\\n  lock_acquire+0x234/0x284\\n  console_flush_all+0x330/0x454\\n  consol\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.198\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.134\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.56\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5.6\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6\", \"versionStartIncluding\": \"5.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:16:21.234Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52516\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:16:21.234Z\", \"dateReserved\": \"2024-02-20T12:30:33.316Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-02T21:52:26.517Z\", \"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.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.