CVE-2025-21821 (GCVE-0-2025-21821)
Vulnerability from cvelistv5
Published
2025-02-27 20:06
Modified
2025-05-04 07:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: fbdev: omap: use threaded IRQ for LCD DMA When using touchscreen and framebuffer, Nokia 770 crashes easily with: BUG: scheduling while atomic: irq/144-ads7846/82/0x00010000 Modules linked in: usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs omap_udc ohci_omap ohci_hcd CPU: 0 UID: 0 PID: 82 Comm: irq/144-ads7846 Not tainted 6.12.7-770 #2 Hardware name: Nokia 770 Call trace: unwind_backtrace from show_stack+0x10/0x14 show_stack from dump_stack_lvl+0x54/0x5c dump_stack_lvl from __schedule_bug+0x50/0x70 __schedule_bug from __schedule+0x4d4/0x5bc __schedule from schedule+0x34/0xa0 schedule from schedule_preempt_disabled+0xc/0x10 schedule_preempt_disabled from __mutex_lock.constprop.0+0x218/0x3b4 __mutex_lock.constprop.0 from clk_prepare_lock+0x38/0xe4 clk_prepare_lock from clk_set_rate+0x18/0x154 clk_set_rate from sossi_read_data+0x4c/0x168 sossi_read_data from hwa742_read_reg+0x5c/0x8c hwa742_read_reg from send_frame_handler+0xfc/0x300 send_frame_handler from process_pending_requests+0x74/0xd0 process_pending_requests from lcd_dma_irq_handler+0x50/0x74 lcd_dma_irq_handler from __handle_irq_event_percpu+0x44/0x130 __handle_irq_event_percpu from handle_irq_event+0x28/0x68 handle_irq_event from handle_level_irq+0x9c/0x170 handle_level_irq from generic_handle_domain_irq+0x2c/0x3c generic_handle_domain_irq from omap1_handle_irq+0x40/0x8c omap1_handle_irq from generic_handle_arch_irq+0x28/0x3c generic_handle_arch_irq from call_with_stack+0x1c/0x24 call_with_stack from __irq_svc+0x94/0xa8 Exception stack(0xc5255da0 to 0xc5255de8) 5da0: 00000001 c22fc620 00000000 00000000 c08384a8 c106fc00 00000000 c240c248 5dc0: c113a600 c3f6ec30 00000001 00000000 c22fc620 c5255df0 c22fc620 c0279a94 5de0: 60000013 ffffffff __irq_svc from clk_prepare_lock+0x4c/0xe4 clk_prepare_lock from clk_get_rate+0x10/0x74 clk_get_rate from uwire_setup_transfer+0x40/0x180 uwire_setup_transfer from spi_bitbang_transfer_one+0x2c/0x9c spi_bitbang_transfer_one from spi_transfer_one_message+0x2d0/0x664 spi_transfer_one_message from __spi_pump_transfer_message+0x29c/0x498 __spi_pump_transfer_message from __spi_sync+0x1f8/0x2e8 __spi_sync from spi_sync+0x24/0x40 spi_sync from ads7846_halfd_read_state+0x5c/0x1c0 ads7846_halfd_read_state from ads7846_irq+0x58/0x348 ads7846_irq from irq_thread_fn+0x1c/0x78 irq_thread_fn from irq_thread+0x120/0x228 irq_thread from kthread+0xc8/0xe8 kthread from ret_from_fork+0x14/0x28 As a quick fix, switch to a threaded IRQ which provides a stable system.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/omap/lcd_dma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7bbbd311dd503653a2cc86d9226740883051dc92",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "fb6a5edb60921887d7d10619fcdcbee9759552cb",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "aa8e22cbedeb626f2a6bda0aea362353d627cd0a",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "8392ea100f0b86c234c739c6662f39f0ccc0cefd",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "e4b6b665df815b4841e71b72f06446884e8aad40",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/omap/lcd_dma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.129",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.79",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.129",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.79",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: omap: use threaded IRQ for LCD DMA\n\nWhen using touchscreen and framebuffer, Nokia 770 crashes easily with:\n\n    BUG: scheduling while atomic: irq/144-ads7846/82/0x00010000\n    Modules linked in: usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs omap_udc ohci_omap ohci_hcd\n    CPU: 0 UID: 0 PID: 82 Comm: irq/144-ads7846 Not tainted 6.12.7-770 #2\n    Hardware name: Nokia 770\n    Call trace:\n     unwind_backtrace from show_stack+0x10/0x14\n     show_stack from dump_stack_lvl+0x54/0x5c\n     dump_stack_lvl from __schedule_bug+0x50/0x70\n     __schedule_bug from __schedule+0x4d4/0x5bc\n     __schedule from schedule+0x34/0xa0\n     schedule from schedule_preempt_disabled+0xc/0x10\n     schedule_preempt_disabled from __mutex_lock.constprop.0+0x218/0x3b4\n     __mutex_lock.constprop.0 from clk_prepare_lock+0x38/0xe4\n     clk_prepare_lock from clk_set_rate+0x18/0x154\n     clk_set_rate from sossi_read_data+0x4c/0x168\n     sossi_read_data from hwa742_read_reg+0x5c/0x8c\n     hwa742_read_reg from send_frame_handler+0xfc/0x300\n     send_frame_handler from process_pending_requests+0x74/0xd0\n     process_pending_requests from lcd_dma_irq_handler+0x50/0x74\n     lcd_dma_irq_handler from __handle_irq_event_percpu+0x44/0x130\n     __handle_irq_event_percpu from handle_irq_event+0x28/0x68\n     handle_irq_event from handle_level_irq+0x9c/0x170\n     handle_level_irq from generic_handle_domain_irq+0x2c/0x3c\n     generic_handle_domain_irq from omap1_handle_irq+0x40/0x8c\n     omap1_handle_irq from generic_handle_arch_irq+0x28/0x3c\n     generic_handle_arch_irq from call_with_stack+0x1c/0x24\n     call_with_stack from __irq_svc+0x94/0xa8\n    Exception stack(0xc5255da0 to 0xc5255de8)\n    5da0: 00000001 c22fc620 00000000 00000000 c08384a8 c106fc00 00000000 c240c248\n    5dc0: c113a600 c3f6ec30 00000001 00000000 c22fc620 c5255df0 c22fc620 c0279a94\n    5de0: 60000013 ffffffff\n     __irq_svc from clk_prepare_lock+0x4c/0xe4\n     clk_prepare_lock from clk_get_rate+0x10/0x74\n     clk_get_rate from uwire_setup_transfer+0x40/0x180\n     uwire_setup_transfer from spi_bitbang_transfer_one+0x2c/0x9c\n     spi_bitbang_transfer_one from spi_transfer_one_message+0x2d0/0x664\n     spi_transfer_one_message from __spi_pump_transfer_message+0x29c/0x498\n     __spi_pump_transfer_message from __spi_sync+0x1f8/0x2e8\n     __spi_sync from spi_sync+0x24/0x40\n     spi_sync from ads7846_halfd_read_state+0x5c/0x1c0\n     ads7846_halfd_read_state from ads7846_irq+0x58/0x348\n     ads7846_irq from irq_thread_fn+0x1c/0x78\n     irq_thread_fn from irq_thread+0x120/0x228\n     irq_thread from kthread+0xc8/0xe8\n     kthread from ret_from_fork+0x14/0x28\n\nAs a quick fix, switch to a threaded IRQ which provides a stable system."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:21:52.069Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7bbbd311dd503653a2cc86d9226740883051dc92"
        },
        {
          "url": "https://git.kernel.org/stable/c/fb6a5edb60921887d7d10619fcdcbee9759552cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/aa8e22cbedeb626f2a6bda0aea362353d627cd0a"
        },
        {
          "url": "https://git.kernel.org/stable/c/8392ea100f0b86c234c739c6662f39f0ccc0cefd"
        },
        {
          "url": "https://git.kernel.org/stable/c/e4b6b665df815b4841e71b72f06446884e8aad40"
        }
      ],
      "title": "fbdev: omap: use threaded IRQ for LCD DMA",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21821",
    "datePublished": "2025-02-27T20:06:12.722Z",
    "dateReserved": "2024-12-29T08:45:45.775Z",
    "dateUpdated": "2025-05-04T07:21:52.069Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21821\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-27T20:16:04.613\",\"lastModified\":\"2025-02-27T20:16:04.613\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfbdev: omap: use threaded IRQ for LCD DMA\\n\\nWhen using touchscreen and framebuffer, Nokia 770 crashes easily with:\\n\\n    BUG: scheduling while atomic: irq/144-ads7846/82/0x00010000\\n    Modules linked in: usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs omap_udc ohci_omap ohci_hcd\\n    CPU: 0 UID: 0 PID: 82 Comm: irq/144-ads7846 Not tainted 6.12.7-770 #2\\n    Hardware name: Nokia 770\\n    Call trace:\\n     unwind_backtrace from show_stack+0x10/0x14\\n     show_stack from dump_stack_lvl+0x54/0x5c\\n     dump_stack_lvl from __schedule_bug+0x50/0x70\\n     __schedule_bug from __schedule+0x4d4/0x5bc\\n     __schedule from schedule+0x34/0xa0\\n     schedule from schedule_preempt_disabled+0xc/0x10\\n     schedule_preempt_disabled from __mutex_lock.constprop.0+0x218/0x3b4\\n     __mutex_lock.constprop.0 from clk_prepare_lock+0x38/0xe4\\n     clk_prepare_lock from clk_set_rate+0x18/0x154\\n     clk_set_rate from sossi_read_data+0x4c/0x168\\n     sossi_read_data from hwa742_read_reg+0x5c/0x8c\\n     hwa742_read_reg from send_frame_handler+0xfc/0x300\\n     send_frame_handler from process_pending_requests+0x74/0xd0\\n     process_pending_requests from lcd_dma_irq_handler+0x50/0x74\\n     lcd_dma_irq_handler from __handle_irq_event_percpu+0x44/0x130\\n     __handle_irq_event_percpu from handle_irq_event+0x28/0x68\\n     handle_irq_event from handle_level_irq+0x9c/0x170\\n     handle_level_irq from generic_handle_domain_irq+0x2c/0x3c\\n     generic_handle_domain_irq from omap1_handle_irq+0x40/0x8c\\n     omap1_handle_irq from generic_handle_arch_irq+0x28/0x3c\\n     generic_handle_arch_irq from call_with_stack+0x1c/0x24\\n     call_with_stack from __irq_svc+0x94/0xa8\\n    Exception stack(0xc5255da0 to 0xc5255de8)\\n    5da0: 00000001 c22fc620 00000000 00000000 c08384a8 c106fc00 00000000 c240c248\\n    5dc0: c113a600 c3f6ec30 00000001 00000000 c22fc620 c5255df0 c22fc620 c0279a94\\n    5de0: 60000013 ffffffff\\n     __irq_svc from clk_prepare_lock+0x4c/0xe4\\n     clk_prepare_lock from clk_get_rate+0x10/0x74\\n     clk_get_rate from uwire_setup_transfer+0x40/0x180\\n     uwire_setup_transfer from spi_bitbang_transfer_one+0x2c/0x9c\\n     spi_bitbang_transfer_one from spi_transfer_one_message+0x2d0/0x664\\n     spi_transfer_one_message from __spi_pump_transfer_message+0x29c/0x498\\n     __spi_pump_transfer_message from __spi_sync+0x1f8/0x2e8\\n     __spi_sync from spi_sync+0x24/0x40\\n     spi_sync from ads7846_halfd_read_state+0x5c/0x1c0\\n     ads7846_halfd_read_state from ads7846_irq+0x58/0x348\\n     ads7846_irq from irq_thread_fn+0x1c/0x78\\n     irq_thread_fn from irq_thread+0x120/0x228\\n     irq_thread from kthread+0xc8/0xe8\\n     kthread from ret_from_fork+0x14/0x28\\n\\nAs a quick fix, switch to a threaded IRQ which provides a stable system.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fbdev: omap: usar IRQ enhebrado para DMA de LCD Al usar la pantalla t\u00e1ctil y el framebuffer, Nokia 770 se bloquea f\u00e1cilmente con: ERROR: scheduling while atomic: irq/144-ads7846/82/0x00010000 Modules linked in: usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs omap_udc ohci_omap ohci_hcd CPU: 0 UID: 0 PID: 82 Comm: irq/144-ads7846 Not tainted 6.12.7-770 #2 Hardware name: Nokia 770 Call trace: unwind_backtrace from show_stack+0x10/0x14 show_stack from dump_stack_lvl+0x54/0x5c dump_stack_lvl from __schedule_bug+0x50/0x70 __schedule_bug from __schedule+0x4d4/0x5bc __schedule from schedule+0x34/0xa0 schedule from schedule_preempt_disabled+0xc/0x10 schedule_preempt_disabled from __mutex_lock.constprop.0+0x218/0x3b4 __mutex_lock.constprop.0 from clk_prepare_lock+0x38/0xe4 clk_prepare_lock from clk_set_rate+0x18/0x154 clk_set_rate from sossi_read_data+0x4c/0x168 sossi_read_data from hwa742_read_reg+0x5c/0x8c hwa742_read_reg from send_frame_handler+0xfc/0x300 send_frame_handler from process_pending_requests+0x74/0xd0 process_pending_requests from lcd_dma_irq_handler+0x50/0x74 lcd_dma_irq_handler from __handle_irq_event_percpu+0x44/0x130 __handle_irq_event_percpu from handle_irq_event+0x28/0x68 handle_irq_event from handle_level_irq+0x9c/0x170 handle_level_irq from generic_handle_domain_irq+0x2c/0x3c generic_handle_domain_irq from omap1_handle_irq+0x40/0x8c omap1_handle_irq from generic_handle_arch_irq+0x28/0x3c generic_handle_arch_irq from call_with_stack+0x1c/0x24 call_with_stack from __irq_svc+0x94/0xa8 Exception stack(0xc5255da0 to 0xc5255de8) 5da0: 00000001 c22fc620 00000000 00000000 c08384a8 c106fc00 00000000 c240c248 5dc0: c113a600 c3f6ec30 00000001 00000000 c22fc620 c5255df0 c22fc620 c0279a94 5de0: 60000013 ffffffff __irq_svc from clk_prepare_lock+0x4c/0xe4 clk_prepare_lock from clk_get_rate+0x10/0x74 clk_get_rate from uwire_setup_transfer+0x40/0x180 uwire_setup_transfer from spi_bitbang_transfer_one+0x2c/0x9c spi_bitbang_transfer_one from spi_transfer_one_message+0x2d0/0x664 spi_transfer_one_message from __spi_pump_transfer_message+0x29c/0x498 __spi_pump_transfer_message from __spi_sync+0x1f8/0x2e8 __spi_sync from spi_sync+0x24/0x40 spi_sync from ads7846_halfd_read_state+0x5c/0x1c0 ads7846_halfd_read_state from ads7846_irq+0x58/0x348 ads7846_irq from irq_thread_fn+0x1c/0x78 irq_thread_fn from irq_thread+0x120/0x228 irq_thread from kthread+0xc8/0xe8 kthread from ret_from_fork+0x14/0x28 Como soluci\u00f3n r\u00e1pida, cambie a una IRQ con subprocesos que proporcione un sistema estable.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7bbbd311dd503653a2cc86d9226740883051dc92\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8392ea100f0b86c234c739c6662f39f0ccc0cefd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/aa8e22cbedeb626f2a6bda0aea362353d627cd0a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e4b6b665df815b4841e71b72f06446884e8aad40\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fb6a5edb60921887d7d10619fcdcbee9759552cb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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