CVE-2023-53700
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
22/10/2025
Última modificación:
22/10/2025
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
media: max9286: Fix memleak in max9286_v4l2_register()<br />
<br />
There is a kmemleak when testing the media/i2c/max9286.c with bpf mock<br />
device:<br />
<br />
kmemleak: 5 new suspected memory leaks (see /sys/kernel/debug/kmemleak)<br />
<br />
unreferenced object 0xffff88810defc400 (size 256):<br />
comm "python3", pid 278, jiffies 4294737563 (age 31.978s)<br />
hex dump (first 32 bytes):<br />
28 06 a7 0a 81 88 ff ff 00 fe 22 12 81 88 ff ff (.........".....<br />
10 c4 ef 0d 81 88 ff ff 10 c4 ef 0d 81 88 ff ff ................<br />
backtrace:<br />
[] __kmalloc_node+0x44/0x1b0<br />
[] kvmalloc_node+0x34/0x180<br />
[] v4l2_ctrl_new+0x325/0x10f0 [videodev]<br />
[] v4l2_ctrl_new_std+0x16f/0x210 [videodev]<br />
[] max9286_probe+0x76e/0xbff [max9286]<br />
[] i2c_device_probe+0x28d/0x680<br />
[] really_probe+0x17c/0x3f0<br />
[] __driver_probe_device+0xe3/0x170<br />
[] driver_probe_device+0x49/0x120<br />
[] __device_attach_driver+0xf7/0x150<br />
[] bus_for_each_drv+0x114/0x180<br />
[] __device_attach+0x1e5/0x2d0<br />
[] bus_probe_device+0x126/0x140<br />
[] device_add+0x810/0x1130<br />
[] i2c_new_client_device+0x359/0x4f0<br />
[] of_i2c_register_device+0xf1/0x110<br />
<br />
max9286_v4l2_register() calls v4l2_ctrl_new_std(), but won&#39;t free the<br />
created v412_ctrl when fwnode_graph_get_endpoint_by_id() failed, which<br />
causes the memleak. Call v4l2_ctrl_handler_free() to free the v412_ctrl.
Impacto
Referencias a soluciones, herramientas e información
- https://git.kernel.org/stable/c/505ff3a0c5951684c3a43094ca4c1a74683d5681
- https://git.kernel.org/stable/c/5897fe3ebe8252993579e1bee715ebfe5504e052
- https://git.kernel.org/stable/c/5e31213fa017c20ccc989033a5f4a626473aa2ca
- https://git.kernel.org/stable/c/724039e013b34f46344abdbf8c74e6a65a828327
- https://git.kernel.org/stable/c/8636c5fc7658c7c6299fb8b352d24ea4b9ba99e2



