CVE-2025-38153

{"id": "CVE-2025-38153", "cveTags": [], "metrics": {}, "published": "2025-07-03T09:15:30.230", "references": [{"url": "https://git.kernel.org/stable/c/11273279012c922f37cfb4dd95d142803fc07b98", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/30a9e834c74e260533b8d0885e3c89f6f32f7993", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/405b0d610745fb5e84fc2961d9b960abb9f3d107", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/60790d287c1a1ced3554d4a87c2f27bf299a932a", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7c01863b1c47f040d9674171e77789a423b9b128", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8c97655275482ef5384ce0501640630a0fc0f6f4", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/acb47a40b5e38be03ef659b7bacdddc592ed73b7", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f398d2dfe450ce2c031d10b585448862d74a0501", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: aqc111: fix error handling of usbnet read calls\n\nSyzkaller, courtesy of syzbot, identified an error (see report [1]) in\naqc111 driver, caused by incomplete sanitation of usb read calls'\nresults. This problem is quite similar to the one fixed in commit\n920a9fa27e78 (\"net: asix: add proper error handling of usb read errors\").\n\nFor instance, usbnet_read_cmd() may read fewer than 'size' bytes,\neven if the caller expected the full amount, and aqc111_read_cmd()\nwill not check its result properly. As [1] shows, this may lead\nto MAC address in aqc111_bind() being only partly initialized,\ntriggering KMSAN warnings.\n\nFix the issue by verifying that the number of bytes read is\nas expected and not less.\n\n[1] Partial syzbot report:\nBUG: KMSAN: uninit-value in is_valid_ether_addr include/linux/etherdevice.h:208 [inline]\nBUG: KMSAN: uninit-value in usbnet_probe+0x2e57/0x4390 drivers/net/usb/usbnet.c:1830\n is_valid_ether_addr include/linux/etherdevice.h:208 [inline]\n usbnet_probe+0x2e57/0x4390 drivers/net/usb/usbnet.c:1830\n usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396\n call_driver_probe drivers/base/dd.c:-1 [inline]\n really_probe+0x4d1/0xd90 drivers/base/dd.c:658\n __driver_probe_device+0x268/0x380 drivers/base/dd.c:800\n...\n\nUninit was stored to memory at:\n dev_addr_mod+0xb0/0x550 net/core/dev_addr_lists.c:582\n __dev_addr_set include/linux/netdevice.h:4874 [inline]\n eth_hw_addr_set include/linux/etherdevice.h:325 [inline]\n aqc111_bind+0x35f/0x1150 drivers/net/usb/aqc111.c:717\n usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772\n usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396\n...\n\nUninit was stored to memory at:\n ether_addr_copy include/linux/etherdevice.h:305 [inline]\n aqc111_read_perm_mac drivers/net/usb/aqc111.c:663 [inline]\n aqc111_bind+0x794/0x1150 drivers/net/usb/aqc111.c:713\n usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772\n usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396\n call_driver_probe drivers/base/dd.c:-1 [inline]\n...\n\nLocal variable buf.i created at:\n aqc111_read_perm_mac drivers/net/usb/aqc111.c:656 [inline]\n aqc111_bind+0x221/0x1150 drivers/net/usb/aqc111.c:713\n usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: usb: aqc111: correcci\u00f3n del manejo de errores de las llamadas de lectura USBnet. Syzkaller, cortes\u00eda de syzbot, identific\u00f3 un error (v\u00e9ase el informe [1]) en el controlador aqc111, causado por una correcci\u00f3n incompleta de los resultados de las llamadas de lectura USB. Este problema es bastante similar al corregido en el commit 920a9fa27e78 (\"net: asix: a\u00f1adir un manejo adecuado de errores de lectura USB\"). Por ejemplo, usbnet_read_cmd() puede leer menos bytes que 'size', incluso si el emisor esperaba la cantidad completa, y aqc111_read_cmd() no comprobar\u00e1 su resultado correctamente. Como se muestra en [1], esto puede provocar que la direcci\u00f3n MAC en aqc111_bind() se inicialice solo parcialmente, lo que activa advertencias KMSAN. Solucione el problema verificando que el n\u00famero de bytes le\u00eddos sea el esperado y no menor. [1] Informe parcial de syzbot: ERROR: KMSAN: uninit-value in is_valid_ether_addr include/linux/etherdevice.h:208 [inline] BUG: KMSAN: uninit-value in usbnet_probe+0x2e57/0x4390 drivers/net/usb/usbnet.c:1830 is_valid_ether_addr include/linux/etherdevice.h:208 [inline] usbnet_probe+0x2e57/0x4390 drivers/net/usb/usbnet.c:1830 usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x4d1/0xd90 drivers/base/dd.c:658 __driver_probe_device+0x268/0x380 drivers/base/dd.c:800 ... Uninit was stored to memory at: dev_addr_mod+0xb0/0x550 net/core/dev_addr_lists.c:582 __dev_addr_set include/linux/netdevice.h:4874 [inline] eth_hw_addr_set include/linux/etherdevice.h:325 [inline] aqc111_bind+0x35f/0x1150 drivers/net/usb/aqc111.c:717 usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772 usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396 ... Uninit was stored to memory at: ether_addr_copy include/linux/etherdevice.h:305 [inline] aqc111_read_perm_mac drivers/net/usb/aqc111.c:663 [inline] aqc111_bind+0x794/0x1150 drivers/net/usb/aqc111.c:713 usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772 usb_probe_interface+0xd01/0x1310 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] ... Local variable buf.i created at: aqc111_read_perm_mac drivers/net/usb/aqc111.c:656 [inline] aqc111_bind+0x221/0x1150 drivers/net/usb/aqc111.c:713 usbnet_probe+0xbe6/0x4390 drivers/net/usb/usbnet.c:1772 "}], "lastModified": "2025-07-03T15:13:53.147", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}