{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "757642f9a584e893f3f4e50c99b674ee8a3ed363"
            },
            {
              "fixed": "7db09011ce62162d72897fc4856b4425245dfe35"
            },
            {
              "fixed": "4ef24338eda3c7e96d6f94a988266ff16ed3985d"
            },
            {
              "fixed": "6136c1474db88272231573e222896e1998d34662"
            },
            {
              "fixed": "c9677a9274ffb44987ec209dc8ec9f2d34946956"
            },
            {
              "fixed": "b9ad50d7505ebd48282ec3630258dc820fc85c81"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.12.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.94"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.36"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53237.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: mvebu: fix NULL pointer dereference in suspend/resume\n\nmvebu_pwm_suspend() and mvebu_pwm_resume() are called for all GPIO\nbanks during suspend/resume, but not all banks have PWM functionality.\nGPIO banks without PWM have mvchip-\u003emvpwm set to NULL.\n\nCalling mvebu_pwm_suspend() with mvpwm == NULL causes a NULL pointer\ndereference when it tries to access mvpwm-\u003eblink_select.\n\n  Unable to handle kernel NULL pointer dereference at virtual address 00000020 when write\n  [00000020] *pgd=00000000\n  Internal error: Oops: 815 [#1] PREEMPT ARM\n  Modules linked in:\n  CPU: 0 UID: 0 PID: 406 Comm: sh Not tainted 6.12.74-rt12-yocto-standard-g4e96f98fb7db-dirty #353\n  Hardware name: Marvell Armada 370/XP (Device Tree)\n  PC is at regmap_mmio_read+0x38/0x54\n  LR is at regmap_mmio_read+0x38/0x54\n  pc : [\u003cc05fd2ac\u003e]    lr : [\u003cc05fd2ac\u003e]    psr: 200f0013\n  sp : f0c11d10  ip : 00000000  fp : c100d2f0\n  r10: c14fb854  r9 : 00000000  r8 : 00000000\n  r7 : c1799c00  r6 : 00000020  r5 : 00000020  r4 : c179c7c0\n  r3 : f0a231a0  r2 : 00000020  r1 : 00000020  r0 : 00000000\n  Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none\n  Control: 10c5387d  Table: 135ec059  DAC: 00000051\n  Call trace:\n   regmap_mmio_read from _regmap_bus_reg_read+0x78/0xac\n   _regmap_bus_reg_read from _regmap_read+0x60/0x154\n   _regmap_read from regmap_read+0x3c/0x60\n   regmap_read from mvebu_gpio_suspend+0xa4/0x14c\n   mvebu_gpio_suspend from dpm_run_callback+0x54/0x180\n   dpm_run_callback from device_suspend+0x124/0x630\n   device_suspend from dpm_suspend+0x124/0x270\n   dpm_suspend from dpm_suspend_start+0x64/0x6c\n   dpm_suspend_start from suspend_devices_and_enter+0x140/0x8e8\n   suspend_devices_and_enter from pm_suspend+0x2fc/0x308\n   pm_suspend from state_store+0x6c/0xc8\n   state_store from kernfs_fop_write_iter+0x10c/0x1f8\n   kernfs_fop_write_iter from vfs_write+0x270/0x468\n   vfs_write from ksys_write+0x70/0xf0\n   ksys_write from ret_fast_syscall+0x0/0x54\n\nAdd a NULL check for mvchip-\u003emvpwm before calling the PWM\nsuspend/resume functions.",
  "id": "CVE-2026-53237",
  "modified": "2026-07-10T03:54:42.959404293Z",
  "published": "2026-06-25T08:39:33.833Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ef24338eda3c7e96d6f94a988266ff16ed3985d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6136c1474db88272231573e222896e1998d34662"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7db09011ce62162d72897fc4856b4425245dfe35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9ad50d7505ebd48282ec3630258dc820fc85c81"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9677a9274ffb44987ec209dc8ec9f2d34946956"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53237.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53237"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "gpio: mvebu: fix NULL pointer dereference in suspend/resume"
}