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CVE-2023-53349

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

media: ov2740: Fix memleak in ov2740_init_controls()

There is a kmemleak when testing the media/i2c/ov2740.c with bpf mock device:

ov2740_init_controls() won't clean all the allocated resources in fail path, which may causes the memleaks. Add v4l2_ctrl_handler_free() to prevent memleak.

Detalles técnicos trazas, registros y código del informe original
unreferenced object 0xffff8881090e19e0 (size 16):
  comm "51-i2c-ov2740", pid 278, jiffies 4294781584 (age 23.613s)
  hex dump (first 16 bytes):
    00 f3 7c 0b 81 88 ff ff 80 75 6a 09 81 88 ff ff  ..|......uj.....
  backtrace:
    [<000000004e9fad8f>] __kmalloc_node+0x44/0x1b0
    [<0000000039c802f4>] kvmalloc_node+0x34/0x180
    [<000000009b8b5c63>] v4l2_ctrl_handler_init_class+0x11d/0x180
[videodev]
    [<0000000038644056>] ov2740_probe+0x37d/0x84f [ov2740]
    [<0000000092489f59>] i2c_device_probe+0x28d/0x680
    [<000000001038babe>] really_probe+0x17c/0x3f0
    [<0000000098c7af1c>] __driver_probe_device+0xe3/0x170
    [<00000000e1b3dc24>] device_driver_attach+0x34/0x80
    [<000000005a04a34d>] bind_store+0x10b/0x1a0
    [<00000000ce25d4f2>] drv_attr_store+0x49/0x70
    [<000000007d9f4e9a>] sysfs_kf_write+0x8c/0xb0
    [<00000000be6cff0f>] kernfs_fop_write_iter+0x216/0x2e0
    [<0000000031ddb40a>] vfs_write+0x658/0x810
    [<0000000041beecdd>] ksys_write+0xd6/0x1b0
    [<0000000023755840>] do_syscall_64+0x38/0x90
    [<00000000b2cc2da2>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ov2740: Fix memleak in ov2740_init_controls()\n\nThere is a kmemleak when testing the media/i2c/ov2740.c with bpf mock\ndevice:\n\nunreferenced object 0xffff8881090e19e0 (size 16):\n  comm \"51-i2c-ov2740\", pid 278, jiffies 4294781584 (age 23.613s)\n  hex dump (first 16 bytes):\n    00 f3 7c 0b 81 88 ff ff 80 75 6a 09 81 88 ff ff  ..|......uj.....\n  backtrace:\n    [<000000004e9fad8f>] __kmalloc_node+0x44/0x1b0\n    [<0000000039c802f4>] kvmalloc_node+0x34/0x180\n    [<000000009b8b5c63>] v4l2_ctrl_handler_init_class+0x11d/0x180\n[videodev]\n    [<0000000038644056>] ov2740_probe+0x37d/0x84f [ov2740]\n    [<0000000092489f59>] i2c_device_probe+0x28d/0x680\n    [<000000001038babe>] really_probe+0x17c/0x3f0\n    [<0000000098c7af1c>] __driver_probe_device+0xe3/0x170\n    [<00000000e1b3dc24>] device_driver_attach+0x34/0x80\n    [<000000005a04a34d>] bind_store+0x10b/0x1a0\n    [<00000000ce25d4f2>] drv_attr_store+0x49/0x70\n    [<000000007d9f4e9a>] sysfs_kf_write+0x8c/0xb0\n    [<00000000be6cff0f>] kernfs_fop_write_iter+0x216/0x2e0\n    [<0000000031ddb40a>] vfs_write+0x658/0x810\n    [<0000000041beecdd>] ksys_write+0xd6/0x1b0\n    [<0000000023755840>] do_syscall_64+0x38/0x90\n    [<00000000b2cc2da2>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nov2740_init_controls() won't clean all the allocated resources in fail\npath, which may causes the memleaks. Add v4l2_ctrl_handler_free() to\nprevent memleak."
    }
  ],
  "lastModified": "2026-06-17T06:44:58.170",
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