CVE-2023-52516 (GCVE-0-2023-52516)
Vulnerability from cvelistv5 – Published: 2024-03-02 21:52 – Updated: 2026-01-05 10:16
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.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| 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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"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---"
}
],
"providerMetadata": {
"dateUpdated": "2026-01-05T10:16:21.234Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
{
"url": "https://git.kernel.org/stable/c/c79300599923daaa30f417c75555d5566b3d31ae"
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"title": "dma-debug: don\u0027t call __dma_entry_alloc_check_leak() under free_entries_lock",
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"assignerShortName": "Linux",
"cveId": "CVE-2023-52516",
"datePublished": "2024-03-02T21:52:26.517Z",
"dateReserved": "2024-02-20T12:30:33.316Z",
"dateUpdated": "2026-01-05T10:16:21.234Z",
"state": "PUBLISHED"
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"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2023-52516\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-02T22:15:47.870\",\"lastModified\":\"2024-12-11T16:34:41.590\",\"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---\"}],\"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:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"5.10.198\",\"matchCriteriaId\":\"71BA73D5-437E-41B7-8F92-323BFBC81366\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.134\",\"matchCriteriaId\":\"346A7B1E-5048-460C-9640-5EFA2075158B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.56\",\"matchCriteriaId\":\"5EA89569-DD45-4A69-BB4D-8356FA9386BD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.5.6\",\"matchCriteriaId\":\"870FC772-173A-4A0F-B1AF-7976AD6057D3\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/ac0d068099349cbca3d93f2e3b15bb329364b08c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/be8f49029eca3efbad0d74dbff3cb9129994ffab\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c79300599923daaa30f417c75555d5566b3d31ae\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fb5a4315591dae307a65fc246ca80b5159d296e1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fe2b811a02c3244ebf6059039e4a9e715e26a9e3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ac0d068099349cbca3d93f2e3b15bb329364b08c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/be8f49029eca3efbad0d74dbff3cb9129994ffab\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c79300599923daaa30f417c75555d5566b3d31ae\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fb5a4315591dae307a65fc246ca80b5159d296e1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fe2b811a02c3244ebf6059039e4a9e715e26a9e3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
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{\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-03-07T20:06:45.546662Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:16.490Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"dma-debug: don\u0027t call __dma_entry_alloc_check_leak() under free_entries_lock\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08\", \"lessThan\": \"c79300599923daaa30f417c75555d5566b3d31ae\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08\", \"lessThan\": \"ac0d068099349cbca3d93f2e3b15bb329364b08c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": 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\"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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Sightings
| Author | Source | Type | Date |
|---|
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.
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