{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-52516", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-20T12:30:33.316Z", "datePublished": "2024-03-02T21:52:26.517Z", "dateUpdated": "2026-05-11T19:28:48.775Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:28:48.775Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock\n\n__dma_entry_alloc_check_leak() calls into printk -> serial console\noutput (qcom geni) and grabs port->lock 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->lock.\n\nMove __dma_entry_alloc_check_leak() call out of free_entries_lock\nscope so that we don't acquire serial console's port->lock under it.\n\nTrimmed-down lockdep splat:\n\n The existing dependency chain (in reverse order) is:\n\n -> #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 -> #1 (&port_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 -> #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 --> &port_lock_key --> free_entries_lock\n\n Possible unsafe locking scenario:\n\n CPU0 CPU1\n ---- ----\n lock(free_entries_lock);\n lock(&port_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---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/dma/debug.c"], "versions": [{"version": "ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08", "lessThan": "c79300599923daaa30f417c75555d5566b3d31ae", "status": "affected", "versionType": "git"}, {"version": "ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08", "lessThan": "ac0d068099349cbca3d93f2e3b15bb329364b08c", "status": "affected", "versionType": "git"}, {"version": "ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08", "lessThan": "be8f49029eca3efbad0d74dbff3cb9129994ffab", "status": "affected", "versionType": "git"}, {"version": "ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08", "lessThan": "fe2b811a02c3244ebf6059039e4a9e715e26a9e3", "status": "affected", "versionType": "git"}, {"version": "ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08", "lessThan": "fb5a4315591dae307a65fc246ca80b5159d296e1", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/dma/debug.c"], "versions": [{"version": "5.0", "status": "affected"}, {"version": "0", "lessThan": "5.0", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.198", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.134", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.56", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5.6", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.10.198"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.15.134"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.1.56"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.5.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.6"}]}]}], "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"}], "title": "dma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52516", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"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": "2024-06-04T17:23:53.618Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:03:20.655Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/c79300599923daaa30f417c75555d5566b3d31ae", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ac0d068099349cbca3d93f2e3b15bb329364b08c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/be8f49029eca3efbad0d74dbff3cb9129994ffab", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/fe2b811a02c3244ebf6059039e4a9e715e26a9e3", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/fb5a4315591dae307a65fc246ca80b5159d296e1", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/c79300599923daaa30f417c75555d5566b3d31ae", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ac0d068099349cbca3d93f2e3b15bb329364b08c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/be8f49029eca3efbad0d74dbff3cb9129994ffab", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/fe2b811a02c3244ebf6059039e4a9e715e26a9e3", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/fb5a4315591dae307a65fc246ca80b5159d296e1", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:03:20.655Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52516", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"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't 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": "ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08", "lessThan": "be8f49029eca3efbad0d74dbff3cb9129994ffab", "versionType": "git"}, {"status": "affected", "version": "ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08", "lessThan": "fe2b811a02c3244ebf6059039e4a9e715e26a9e3", "versionType": "git"}, {"status": "affected", "version": "ceb51173b2b5bd7af0d99079f6bbacdcfc58fe08", "lessThan": "fb5a4315591dae307a65fc246ca80b5159d296e1", "versionType": "git"}], "programFiles": ["kernel/dma/debug.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"status": "unaffected", "version": "0", "lessThan": "5.0", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.198", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "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't call __dma_entry_alloc_check_leak() under free_entries_lock\n\n__dma_entry_alloc_check_leak() calls into printk -> serial console\noutput (qcom geni) and grabs port->lock 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->lock.\n\nMove __dma_entry_alloc_check_leak() call out of free_entries_lock\nscope so that we don't acquire serial console's port->lock under it.\n\nTrimmed-down lockdep splat:\n\n The existing dependency chain (in reverse order) is:\n\n -> #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 -> #1 (&port_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 -> #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 --> &port_lock_key --> free_entries_lock\n\n Possible unsafe locking scenario:\n\n CPU0 CPU1\n ---- ----\n lock(free_entries_lock);\n lock(&port_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"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "71BA73D5-437E-41B7-8F92-323BFBC81366", "versionEndExcluding": "5.10.198", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "346A7B1E-5048-460C-9640-5EFA2075158B", "versionEndExcluding": "5.15.134", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5EA89569-DD45-4A69-BB4D-8356FA9386BD", "versionEndExcluding": "6.1.56", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "870FC772-173A-4A0F-B1AF-7976AD6057D3", "versionEndExcluding": "6.5.6", "versionStartIncluding": "6.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock\n\n__dma_entry_alloc_check_leak() calls into printk -> serial console\noutput (qcom geni) and grabs port->lock 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->lock.\n\nMove __dma_entry_alloc_check_leak() call out of free_entries_lock\nscope so that we don't acquire serial console's port->lock under it.\n\nTrimmed-down lockdep splat:\n\n The existing dependency chain (in reverse order) is:\n\n -> #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 -> #1 (&port_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 -> #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 --> &port_lock_key --> free_entries_lock\n\n Possible unsafe locking scenario:\n\n CPU0 CPU1\n ---- ----\n lock(free_entries_lock);\n lock(&port_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 -> salida de consola serie (qcom geni) y toma puerto->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->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->bloqueo debajo de ella. S\u00edmbolo de bloqueo recortado: la cadena de dependencia existente (en orden inverso) es: -> #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 ... -> #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 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... -> #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 --> &port_lock_key --> free_entries_lock Posible escenario de bloqueo inseguro: CPU0 CPU1 ---- ---- lock(free_entries_lock); bloquear(&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---"}], "id": "CVE-2023-52516", "lastModified": "2024-12-11T16:34:41.590", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-03-02T22:15:47.870", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "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": "af854a3a-2127-422b-91ae-364da2661108", "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"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: dma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock", "id": "2267801", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2267801"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-413", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock\n__dma_entry_alloc_check_leak() calls into printk -> serial console\noutput (qcom geni) and grabs port->lock 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->lock.\nMove __dma_entry_alloc_check_leak() call out of free_entries_lock\nscope so that we don't acquire serial console's port->lock under it.\nTrimmed-down lockdep splat:\nThe existing dependency chain (in reverse order) is:\n-> #2 (free_entries_lock){-.-.}-{2:2}:\n_raw_spin_lock_irqsave+0x60/0x80\ndma_entry_alloc+0x38/0x110\ndebug_dma_map_page+0x60/0xf8\ndma_map_page_attrs+0x1e0/0x230\ndma_map_single_attrs.constprop.0+0x6c/0xc8\ngeni_se_rx_dma_prep+0x40/0xcc\nqcom_geni_serial_isr+0x310/0x510\n__handle_irq_event_percpu+0x110/0x244\nhandle_irq_event_percpu+0x20/0x54\nhandle_irq_event+0x50/0x88\nhandle_fasteoi_irq+0xa4/0xcc\nhandle_irq_desc+0x28/0x40\ngeneric_handle_domain_irq+0x24/0x30\ngic_handle_irq+0xc4/0x148\ndo_interrupt_handler+0xa4/0xb0\nel1_interrupt+0x34/0x64\nel1h_64_irq_handler+0x18/0x24\nel1h_64_irq+0x64/0x68\narch_local_irq_enable+0x4/0x8\n____do_softirq+0x18/0x24\n...\n-> #1 (&port_lock_key){-.-.}-{2:2}:\n_raw_spin_lock_irqsave+0x60/0x80\nqcom_geni_serial_console_write+0x184/0x1dc\nconsole_flush_all+0x344/0x454\nconsole_unlock+0x94/0xf0\nvprintk_emit+0x238/0x24c\nvprintk_default+0x3c/0x48\nvprintk+0xb4/0xbc\n_printk+0x68/0x90\nregister_console+0x230/0x38c\nuart_add_one_port+0x338/0x494\nqcom_geni_serial_probe+0x390/0x424\nplatform_probe+0x70/0xc0\nreally_probe+0x148/0x280\n__driver_probe_device+0xfc/0x114\ndriver_probe_device+0x44/0x100\n__device_attach_driver+0x64/0xdc\nbus_for_each_drv+0xb0/0xd8\n__device_attach+0xe4/0x140\ndevice_initial_probe+0x1c/0x28\nbus_probe_device+0x44/0xb0\ndevice_add+0x538/0x668\nof_device_add+0x44/0x50\nof_platform_device_create_pdata+0x94/0xc8\nof_platform_bus_create+0x270/0x304\nof_platform_populate+0xac/0xc4\ndevm_of_platform_populate+0x60/0xac\ngeni_se_probe+0x154/0x160\nplatform_probe+0x70/0xc0\n...\n-> #0 (console_owner){-...}-{0:0}:\n__lock_acquire+0xdf8/0x109c\nlock_acquire+0x234/0x284\nconsole_flush_all+0x330/0x454\nconsole_unlock+0x94/0xf0\nvprintk_emit+0x238/0x24c\nvprintk_default+0x3c/0x48\nvprintk+0xb4/0xbc\n_printk+0x68/0x90\ndma_entry_alloc+0xb4/0x110\ndebug_dma_map_sg+0xdc/0x2f8\n__dma_map_sg_attrs+0xac/0xe4\ndma_map_sgtable+0x30/0x4c\nget_pages+0x1d4/0x1e4 [msm]\nmsm_gem_pin_pages_locked+0x38/0xac [msm]\nmsm_gem_pin_vma_locked+0x58/0x88 [msm]\nmsm_ioctl_gem_submit+0xde4/0x13ac [msm]\ndrm_ioctl_kernel+0xe0/0x15c\ndrm_ioctl+0x2e8/0x3f4\nvfs_ioctl+0x30/0x50\n...\nChain exists of:\nconsole_owner --> &port_lock_key --> free_entries_lock\nPossible unsafe locking scenario:\nCPU0 CPU1\n---- ----\nlock(free_entries_lock);\nlock(&port_lock_key);\nlock(free_entries_lock);\nlock(console_owner);\n*** DEADLOCK ***\nCall trace:\ndump_backtrace+0xb4/0xf0\nshow_stack+0x20/0x30\ndump_stack_lvl+0x60/0x84\ndump_stack+0x18/0x24\nprint_circular_bug+0x1cc/0x234\ncheck_noncircular+0x78/0xac\n__lock_acquire+0xdf8/0x109c\nlock_acquire+0x234/0x284\nconsole_flush_all+0x330/0x454\nconsol\n---truncated---"], "name": "CVE-2023-52516", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-03-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52516\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52516\nhttps://lore.kernel.org/linux-cve-announce/2024030252-CVE-2023-52516-9b4a@gregkh/T/#u"], "threat_severity": "Low"}

{}